CN114759669A - Control device, method and terminal for ship shore power system - Google Patents
Control device, method and terminal for ship shore power system Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00004—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the power network being locally controlled
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
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Abstract
The invention discloses a control device, a method and a terminal of a ship shore power system, wherein the device comprises: the monitoring system monitors power supply parameters and/or equipment parameters of each shore power supply substation and monitors power utilization parameters and/or equipment parameters of the shore power receiving system; the control system matches the corresponding shore power supply substations for the shore power receiving system according to the power supply parameters of each shore power supply substation and the power utilization parameters of the shore power receiving system, and records the matched shore power supply substations; controlling and matching a shore power supply substation to supply power to a ship where a shore power receiving system is located; and/or the control system is used for carrying out fault detection on the power supply equipment of the corresponding shore power supply substation according to the equipment parameters of each shore power supply substation; and/or carrying out fault detection on the power utilization equipment of the shore power receiving system according to the equipment parameters of the shore power receiving system. According to the scheme, the state monitoring and fault diagnosis are carried out on the ship shore power system, so that the power supply reliability of the ship shore power system is improved.
Description
Technical Field
The invention belongs to the technical field of shipping, and particularly relates to a control device, a control method and a control terminal of a ship shore power system (such as a terminal with the capabilities of monitoring the state of the ship shore power system and remotely diagnosing faults).
Background
With the continuous development of shipping industry, the cargo throughput of ports in China is remarkably increased, and ships are greatly increased when berthing at the ports. During the port berthing of a ship, a ship diesel generator set is usually adopted to generate electricity to meet the electricity demand of the ship, and the generated atmospheric pollutants can cause great pollution to the port area and the environment of the peripheral area, thereby seriously affecting the body health of surrounding workers and residents. The ship shore power technology utilizes an onshore power supply to replace an onboard diesel generator set, supplies power to an electric ship shore power system of a ship in a port, meets the power requirements of ventilation, illumination, a water pump, communication and the like, can greatly reduce the air pollution, noise pollution and energy consumption of the ship in the port period, assists the realization of the aims of carbon peak reaching and carbon neutralization in China, and is a key measure for promoting the construction of green port and navigation in China.
As ships continue to grow in size, the amount of electricity used during the arrival of ships increases. In order to meet the requirement of large-capacity power utilization of ships in ports, the capacity of a ship shore power system is increased day by day. But the power supply reliability of the ship shore power system is lower.
The above is only for the purpose of assisting understanding of the technical solution of the present invention, and does not represent an admission that the above is the prior art.
Disclosure of Invention
The invention aims to provide a control device, a control method and a control terminal for a ship shore power system, which are used for solving the problem of low power supply reliability of the ship shore power system and achieving the effect of facilitating improvement of the power supply reliability of the ship shore power system by carrying out state monitoring and fault diagnosis on the ship shore power system.
The present invention provides a control device for a ship shore power system, the ship shore power system including: a shore power supply system and a shore power receiving system; the shore power supply system comprises: more than one shore power supply substation; the control device of the ship shore power system comprises: a monitoring system and a control system; the monitoring system is configured to monitor power supply parameters and/or equipment parameters of each shore power supply substation in more than one shore power supply substation and monitor power utilization parameters and/or equipment parameters of the shore power receiving system; the control system is configured to match corresponding shore power supply substations for the shore power receiving system from more than one shore power supply substations of the shore power supply system according to the power supply parameters of each shore power supply substation in the shore power supply system and the power consumption parameters of the shore power receiving system, and record the matched shore power supply substations; and under the condition that the ship where the shore power receiving system is located is in shore, controlling the matched shore power supply substation to supply power to the ship where the shore power receiving system is located; and/or the control system is further configured to perform fault detection on the power supply equipment of the corresponding shore power supply substation according to the equipment parameters of each shore power supply substation in the shore power supply system; and/or detecting the fault of the power utilization equipment of the shore power receiving system according to the equipment parameters of the shore power receiving system.
In some embodiments, the monitoring system comprises: the system comprises a port shore power supply substation monitoring subsystem and a shipborne monitoring subsystem; wherein, monitoring system, every in more than one bank electricity power supply substation power supply parameter and/or equipment parameter of bank electricity power supply substation, and monitor bank electricity powered system's power consumption parameter and/or equipment parameter, include: the port shore power supply substation monitoring subsystems are more than one in number, and one port shore power supply substation monitoring subsystem is configured to monitor power supply parameters and/or equipment parameters of a corresponding shore power supply substation in more than one shore power supply substation; the power supply parameters of the shore power supply substation comprise: the working state of the shore power supply substation; the power supply parameter of bank electricity power supply substation still includes: at least one of rated voltage and plant capacity; the equipment parameters of the shore power supply substation comprise: the on-off state of power supply equipment of the shore power supply substation; the equipment parameter of bank electricity power supply substation still includes: at least one of voltage, current, power; the number of the ship-borne monitoring subsystems is more than one, and one ship-borne monitoring subsystem is configured to monitor power utilization parameters and/or equipment parameters of one shore power receiving system; the power consumption parameter of shore power receiving system includes: an identification signal of the shore power powered system; the power consumption parameter of shore power receiving system still includes: at least one of a plant capacity, a rated voltage; the equipment parameters of the shore power receiving system comprise: the on-off state of the electrical equipment of the shore power receiving system; the equipment parameters of the shore power receiving system further comprise: at least one of a voltage, a current, and a temperature of a power-consuming device of the shore power receiving system.
In some embodiments, the control system comprises: the system comprises a port and aviation centralized control center, a cloud server and a remote auxiliary diagnosis center; the control unit matches a corresponding shore power supply substation for the shore power receiving system from more than one shore power supply substation of the shore power supply system according to the power supply parameter of each shore power supply substation in the shore power supply system and the power consumption parameter of the shore power receiving system, and records the matched shore power supply substation; and under the condition that the ship where the shore power receiving system is located is in shore, controlling the matched shore power supply substation to supply power to the ship where the shore power receiving system is located, and the method comprises the following steps:
the port and navigation centralized control center (B) is configured to receive power supply parameters of each shore power supply substation in the shore power supply system and power consumption parameters of the shore power receiving system, and according to the power supply parameters of each shore power supply substation in the shore power supply system and the power consumption parameters of the shore power receiving system, corresponding shore power supply substations are matched for the shore power receiving system from more than one shore power supply substations of the shore power supply system and are marked as matched shore power supply substations; and the matched shore power supply substation and the shore power receiving system return a control instruction, so that under the condition that the ship where the shore power receiving system is located is in shore, the matched shore power supply substation is controlled, and the shore power receiving system is powered by the ship where the shore power receiving system is located.
In some embodiments, the control system further comprises: the system comprises a cloud server and a remote auxiliary diagnosis center; wherein, control system according to in the shore power supply system every the equipment parameter of shore power supply substation, carry out fault detection to the power supply unit of corresponding shore power supply substation, include: the port and navigation centralized control center is further configured to determine whether equipment parameters of power supply equipment of the corresponding shore power supply substation are within a set first parameter range, and if not, determine that the power supply equipment of the corresponding shore power supply substation fails, and initiate a first warning message that the power supply equipment of the corresponding shore power supply substation fails; the cloud server is configured to store equipment parameters of power supply equipment of the corresponding shore power supply substation and/or a fault condition of the power supply equipment of the corresponding shore power supply substation to obtain first storage data; the remote auxiliary diagnosis center is configured to analyze faults occurring on power supply equipment of the corresponding shore power supply substation by utilizing a pre-trained first fault diagnosis model based on the first stored data to obtain a first analysis result; the cloud server is further configured to store the first analysis result; the port and aviation centralized control center is also configured to access the first analysis result and process the fault of the power supply equipment of the corresponding shore power supply substation according to the first analysis result; the control system carries out fault detection to the power consumption equipment of shore power receiving system according to the equipment parameter of shore power receiving system, includes: the port and navigation centralized control center is further configured to determine whether equipment parameters of the shore power receiving system are within a set second parameter range, and if not, determine that the equipment parameters of the shore power receiving system are in fault, and initiate a second reminding message that the equipment parameters of the shore power receiving system are in fault; the cloud server is configured to store equipment parameters of the shore power receiving system and/or conditions of the equipment parameters of the shore power receiving system to obtain second storage data; the remote auxiliary diagnosis center is configured to analyze the fault of the equipment parameter of the shore power powered system by using a pre-trained second fault diagnosis model based on the second stored data to obtain a second analysis result; the cloud server is further configured to store the second analysis result; and the port and navigation centralized control center is further configured to access the second analysis result, and process the fault of the equipment parameter of the shore power receiving system according to the second analysis result.
In some embodiments, the port and navigation centralized control center matches, according to a power supply parameter of each shore power supply substation in the shore power supply system and a power consumption parameter of the shore power receiving system, a corresponding shore power supply substation for the shore power receiving system from more than one shore power supply substations of the shore power supply system, including: according to the corresponding relation between the set power supply parameters and the set power utilization parameters, determining the set power supply parameters corresponding to the set power utilization parameters which are the same as the power utilization parameters of the shore power supply system in the corresponding relation as matched power supply parameters corresponding to the power utilization parameters of the shore power supply system; and determining the shore power supply substation corresponding to the power supply parameter which is the same as the matched power supply parameter in the shore power supply system as the shore power supply substation matched with the shore power receiving system.
In accordance with the above apparatus, a further aspect of the present invention provides a terminal, including: the control device for a ship shore power system described above.
In a further aspect of the present invention, which is matched with the control device of the ship shore power system, a control method of the ship shore power system includes: a shore power supply system and a shore power receiving system; the shore power supply system comprises: more than one shore power supply substation;
the control method of the ship shore power system comprises the following steps:
monitoring power supply parameters and/or equipment parameters of each shore power supply substation in more than one shore power supply substations, and monitoring power utilization parameters and/or equipment parameters of a shore power receiving system;
according to the power supply parameters of each shore power supply substation in the shore power supply system and the power consumption parameters of the shore power receiving system, matching corresponding shore power supply substations for the shore power receiving system from more than one shore power supply substations of the shore power supply system, and recording as matched shore power supply substations; and under the condition that the ship where the shore power receiving system is located is in shore, controlling the matched shore power supply substation to supply power to the ship where the shore power receiving system is located; and/or the presence of a gas in the gas,
according to equipment parameters of each shore power supply substation in the shore power supply system, fault detection is carried out on power supply equipment of the corresponding shore power supply substation; and/or carrying out fault detection on the power utilization equipment of the shore power receiving system according to the equipment parameters of the shore power receiving system.
In some embodiments, the power supply parameters of the shore power supply substation include: the working state of the shore power supply substation; the power supply parameter of bank electricity power supply substation still includes: at least one of rated voltage and plant capacity; the equipment parameters of the shore power supply substation comprise: the on-off state of power supply equipment of the shore power supply substation; the equipment parameter of shore power supply substation still includes: at least one of voltage, current, power; and/or, the electricity utilization parameters of the shore power receiving system comprise: an identification signal of the shore power powered system; the power consumption parameter of bank electricity receiving system still includes: at least one of a plant capacity, a rated voltage; the equipment parameters of the shore power receiving system comprise: the on-off state of the electrical equipment of the shore power receiving system; the equipment parameters of the shore power receiving system further comprise: at least one of a voltage, a current, and a temperature of a power-consuming device of the shore power receiving system.
In some embodiments, according to a power supply parameter of each shore power supply substation in the shore power supply system and a power consumption parameter of the shore power receiving system, matching a corresponding shore power supply substation for the shore power receiving system from more than one shore power supply substations of the shore power supply system, and recording as a matched shore power supply substation; and under the condition that the ship where the shore power receiving system is located is in shore, controlling the matched shore power supply substation to supply power to the ship where the shore power receiving system is located, and the method comprises the following steps: receiving power supply parameters of each shore power supply substation in the shore power supply system and power consumption parameters of the shore power receiving system, matching corresponding shore power supply substations for the shore power receiving system from more than one shore power supply substations of the shore power supply system according to the power supply parameters of each shore power supply substation in the shore power supply system and the power consumption parameters of the shore power receiving system, and recording as matched shore power supply substations; and the matched shore power supply substation and the shore power receiving system return a control instruction, so that under the condition that the ship where the shore power receiving system is located is in shore, the matched shore power supply substation is controlled, and the shore power receiving system is powered by the ship where the shore power receiving system is located.
In some embodiments, wherein the fault detection of the power supply equipment of the corresponding shore power supply substation according to the equipment parameters of each shore power supply substation in the shore power supply system comprises: determining whether the equipment parameters of the power supply equipment of the corresponding shore power supply substation are within a set first parameter range, if not, determining that the power supply equipment of the corresponding shore power supply substation fails, and initiating a first warning message that the power supply equipment of the corresponding shore power supply substation fails; storing equipment parameters of power supply equipment of the corresponding shore power supply substation and/or the condition that the power supply equipment of the corresponding shore power supply substation fails to work to obtain first storage data; analyzing the fault of the power supply equipment of the corresponding shore power supply substation by utilizing a pre-trained first fault diagnosis model based on the first stored data to obtain a first analysis result; storing the first analysis result; accessing the first analysis result, and processing the fault of the power supply equipment of the corresponding shore power supply substation according to the first analysis result; and/or, the fault detection is carried out on the power utilization equipment of the shore power receiving system according to the equipment parameters of the shore power receiving system, and the fault detection comprises the following steps: determining whether the equipment parameters of the shore power receiving system are within a set second parameter range, if not, determining that the equipment parameters of the shore power receiving system are in fault, and initiating a second reminding message of the equipment parameters of the shore power receiving system being in fault; storing equipment parameters of the shore power receiving system and/or the condition of the equipment parameters of the shore power receiving system to obtain second storage data; analyzing faults occurring in equipment parameters of the shore power receiving system by using a pre-trained second fault diagnosis model based on the second stored data to obtain a second analysis result; storing the second analysis result; accessing the second analysis result, and processing the fault of the equipment parameter of the shore power receiving system according to the second analysis result; and/or, according to in the bank electricity power supply system every the power supply parameter of bank electricity power supply substation and the power consumption parameter of bank electricity powered system, certainly do in more than one bank electricity power supply substation of bank electricity power supply system for the bank electricity powered system matches corresponding bank electricity power supply substation, include:
according to the corresponding relation between the set power supply parameters and the set power utilization parameters, determining the set power supply parameters corresponding to the set power utilization parameters which are the same as the power utilization parameters of the shore power supply system in the corresponding relation as the matched power supply parameters corresponding to the power utilization parameters of the shore power supply system; and determining the shore power supply substation corresponding to the power supply parameter which is the same as the matched power supply parameter in the shore power supply system as the shore power supply substation matched with the shore power receiving system.
Therefore, according to the scheme provided by the invention, the ship shore state monitoring and remote fault diagnosis system is arranged aiming at each port shore power supply system and each ship shore power receiving system, so that the proper port shore power supply system can be allocated for the corresponding ship shore power receiving system by combining the power supply condition of each port shore power supply system and the power demand condition of each ship shore power receiving system, the power supply of the corresponding ship shore power receiving system by using the port shore power supply system is realized, and the fault conditions of the port shore power supply system and each ship shore power receiving system can be monitored, so that the state monitoring and fault diagnosis of the ship shore power system are facilitated, and the power supply reliability of the ship shore power system is improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a control device of a marine shore power system according to the present invention;
fig. 2 is a schematic flow chart illustrating an embodiment of a control method of a marine shore power system according to the present invention;
fig. 3 is a schematic flow chart illustrating an embodiment of allocating the shore power substation and the shore power receiving system in the method of the present invention;
fig. 4 is a schematic flow chart of an embodiment of fault detection of the power supply equipment of the corresponding shore power supply substation in the method of the present invention;
fig. 5 is a schematic flow chart illustrating an embodiment of fault detection on power consumption equipment of the shore power receiving system in the method of the present invention.
FIG. 6 is a schematic block diagram of an embodiment of a marine shore power system with condition monitoring and remote fault diagnosis capabilities;
FIG. 7 is a schematic structural diagram of an embodiment of a shore connection structure of a shore power system;
fig. 8 is a schematic structural diagram of an embodiment of a state monitoring and remote fault diagnosis system of a ship shore power system.
With reference to fig. 7, the reference numerals in the embodiments of the present invention are as follows:
1-a power grid; 2-high/low voltage incoming line switch; 3-a variable voltage and variable frequency device; 31-a voltage transformation module; 32-a frequency conversion module; 33-a filtering module; 4-an isolation transformer; 5-an outlet switch cabinet; 6-high voltage/low voltage shore power junction box; 7-cable management system (including cable winch and cable installation); 8-special plug storage box; 9-shore power connection box; 10-a main switchboard; 101-shore power tie switch; 102-winch isolation switch; 103-emergency switchboard switch; 104-generator switch; 105-a load switch; 11-an emergency switchboard; 12-a generator; 13-a transformer; 14-Ship load.
With reference to fig. 8, the reference numerals in the embodiments of the present invention are as follows:
a1-a first port shore power supply substation monitoring subsystem, A2-a second port shore power supply substation monitoring subsystem, AN-AN Nth port shore power supply substation monitoring subsystem, wherein N is a positive integer; b-a port and navigation centralized control center; c1-a first shipborne monitoring subsystem, C2-a second shipborne monitoring subsystem and CP-a No. P shipborne monitoring subsystem, wherein P is a positive integer; a D-cloud server; e1-a first remote auxiliary diagnosis center, E2-a second remote auxiliary diagnosis center, EM-an Mth remote auxiliary diagnosis center, M is a positive integer; F1-CAN bus; an F2-5G communication network; f3-broadband networks.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to improve the power supply reliability of the ship shore power system, ensure the safe and reliable operation of the ship shore power system and reduce the maintenance cost of the system, the ship shore power system needs to be comprehensively monitored in state, a state monitoring and remote fault diagnosis center is constructed, the information of each key parameter is fed back to a port and navigation centralized control center, onshore distributed resources are fully utilized, the abnormal condition of the system is diagnosed in time, and emergency control measures are taken.
According to an embodiment of the present invention, there is provided a control apparatus of a marine shore power system. Referring to fig. 1, a schematic diagram of an embodiment of the apparatus of the present invention is shown. The marine shore power system, comprising: the shore power supply system is specifically a port shore power supply system, and the shore power receiving system is specifically a ship shore power receiving system. The shore power supply system comprises: more than one shore power supply substation. The shore power receiving system is arranged on the ship.
The control device of the ship shore power system comprises: the system comprises a monitoring system and a control system, wherein the monitoring system comprises a port shore power supply substation monitoring subsystem, a shipborne monitoring subsystem and the like, and the control system comprises a port and aviation centralized control center B, a cloud server D and a distributed remote auxiliary diagnosis center.
The monitoring system is configured to monitor power supply parameters and/or equipment parameters of each shore power supply substation in more than one shore power supply substation and monitor power consumption parameters and/or equipment parameters of the shore power receiving system.
The control system is configured to match corresponding shore power supply substations for the shore power receiving system from more than one shore power supply substations of the shore power supply system according to the power supply parameters of each shore power supply substation in the shore power supply system and the power consumption parameters of the shore power receiving system, and record the matched shore power supply substations; and under the condition that the ship where the shore power receiving system is located is in shore, controlling the matched shore power supply substation to supply power to the ship where the shore power receiving system is located. The shore power powered system, i.e. the part of the power going from the vessel connection point to the vessel switchboard.
And/or the control system is further configured to perform fault detection on the power supply equipment of the corresponding shore power supply substation according to the equipment parameters of each shore power supply substation in the shore power supply system, such as determining whether the power supply equipment of the corresponding shore power supply substation is faulty or not, so as to initiate a first reminding message in time when the power supply equipment of the corresponding shore power supply substation is faulty; and/or, according to the equipment parameters of the shore power receiving system, carrying out fault detection on the power utilization equipment of the shore power receiving system, if determining whether the power utilization equipment of the shore power receiving system is in fault or not, so that when the power utilization equipment of the shore power receiving system is in fault, a second reminding message is timely initiated.
In order to improve the safety and reliability of the ship shore power system and ensure that the ship shore power system meets the increasing power demand of ships, the invention provides the ship shore power system. Fig. 6 is a schematic block diagram of an embodiment of a marine shore power system with condition monitoring and remote fault diagnosis capabilities. As shown in fig. 6, the ship shore power system with the state monitoring and remote fault diagnosis capability comprises: the system comprises a port shore power supply system, a ship shore power receiving system and a ship shore state monitoring and remote fault diagnosis system. A port shore power supply system is a power supply system for supplying power to port ships from ports. The ship shore power receiving system can receive power supplied by a shore-based power supply and meet the power demand of ship loads.
The self-contained state monitoring and remote fault diagnosis system for the ship shore power system, provided by the scheme of the invention, can reduce the safety risk of the ship shore power system, improve the reliability and safety of the ship shore power system, realize the comprehensive utilization of distributed resources, provide power for a large-capacity power load of a berthing ship, and meet the power consumption requirements of the berthing ship, the quick connection of a shore cable and the like.
In some embodiments, the matching shore power substation comprises: the system comprises an incoming line switch cabinet, a voltage and frequency conversion device 3, an isolation transformer 4, an outgoing line switch cabinet 5 and a shore power junction box, wherein the incoming line switch cabinet is a high-voltage/low-voltage incoming line switch cabinet 2, and the shore power junction box is a high-voltage/low-voltage shore power junction box 6.
The power grid 1 of commercial power, through the inlet wire cubical switchboard, vary voltage frequency conversion device 3, isolation transformer 4 the cubical switchboard 5 of being qualified for the next round of competitions with behind the bank electricity junction box, can be in under control system's control, export to match bank electricity power supply substation, for the power supply of bank electricity receiving system place boats and ships.
Fig. 7 is a schematic structural diagram of an embodiment of a shore connection structure of a shore power system. As shown in fig. 7, at the shore end, the port shore power supply system includes: the high-voltage/low-voltage power supply system comprises a high-voltage/low-voltage incoming switch cabinet 2, a variable-voltage variable-frequency device 3, an isolation transformer 4, an outgoing switch cabinet 5 and a high-voltage/low-voltage shore power junction box 6. The input end of the high-voltage/low-voltage incoming line switch cabinet 2 is connected with the power grid 1. The output end of the high-voltage/low-voltage incoming line switch cabinet 2 is connected with a voltage transformation and frequency conversion device 3. The voltage and frequency conversion device 3 sequentially passes through an isolation transformer 4, an outgoing line switch cabinet 5 and a high-voltage/low-voltage shore power junction box 6 and then is output to a ship shore power receiving system at a ship end.
In the shore power supply system for a port shown in fig. 7, the voltage-variable frequency conversion device 3 includes: a voltage transformation module 31, a frequency conversion module 32 and a filter module 33. In the voltage and frequency conversion device 3, a voltage conversion module 31, a frequency conversion module 32 and a filter module 33 are connected in sequence.
The transformation module 31 transforms the incoming line voltage output from the output end of the high-voltage/low-voltage incoming line switch cabinet 2 to the transformation frequency conversion device 3 by using the electromagnetic induction principle, the input end of the transformation module 31 is connected with the output end of the high-voltage/low-voltage incoming line switch cabinet 2, and the output end of the transformation module 31 is connected with the frequency conversion module 32.
The frequency conversion module 32 performs ac-dc-ac conversion on the ac power input by the power grid 1 through the high-voltage/low-voltage incoming switch cabinet 2 and the voltage transformation module 31, outputs ac power with more stable voltage and frequency, the input end of the frequency conversion module 32 is connected with the output end of the voltage transformation module 31, and the output end of the frequency conversion module 32 is connected with the input end of the filtering module 33. The voltage and frequency of the ac power output by the frequency conversion module 32 are within a reasonable range, which may be: the alternating voltage is 11000V and the frequency is 60 Hz. AC voltage 6600V, frequency 60 Hz. The alternating voltage is 6000V, and the frequency is 50 Hz. An AC voltage of 450V, a frequency of 60 or 50Hz, and the like.
The filtering module 33 provides a good sine waveform for the output of the whole port shore power supply system to ensure good power supply quality, the input end of the filtering module 33 is connected with the output end of the frequency conversion module 32, and the output end of the filtering module 33 is connected with the input end of the isolation transformer 4.
In the port shore power supply system shown in fig. 7, the isolation transformer 4 is mainly used for physically isolating the port shore power supply system from the ship shore power receiving system by completely insulating the primary side and the secondary side, so as to play a role of protection, the input end of the isolation transformer 4 is connected with the output end of the voltage transformation frequency conversion device 3, and the output end of the isolation transformer 4 is connected with the input end of the outgoing line switch cabinet 5.
In the port shore power supply system shown in fig. 7, the high voltage/low voltage shore power connection box 6 mainly functions as a high voltage/low voltage power supply connection, a shore communication connection, and a shore connection safety monitoring. The high-voltage/low-voltage shore power junction box 6 mainly comprises a base, a box body, a box door, a door lock, an indicator light, a quick socket, a heat dissipation unit and the like. In the high/low voltage shore power junction box 6, a box body is installed on a base, a box door, a door lock and an indicator light are all installed on the box body, and a quick socket, a heat dissipation unit and the like are installed inside the box body.
The ship-shore communication connection means that optical fiber transceivers are arranged at a ship end and a shore end respectively through optical fiber communication between ships and shore. The signal is subjected to electro-optical conversion at the transmitting end, and the converted optical signal is transmitted in light. The receiving end carries out optical-electrical reduction on the optical signal through the optical fiber receiver, and the optical signal is converted into a corresponding electrical signal, so that communication connection of two ends of the ship shore is realized.
In the shore power supply system for a port shown in fig. 7, the input end of the high-voltage/low-voltage shore power connection box 6 is connected to the output end of the outgoing switch cabinet 5, and the output end of the high-voltage/low-voltage shore power connection box 6 is connected to a boarding cable (i.e., a shore connection cable) wound around a cable winch in the shore power receiving system of a ship at the ship end through a quick socket.
In some embodiments, the shore power receiving system comprises: a cable management system 7, a shore power connection box 9, a plug storage box 8 and a main power distribution unit, such as a main distribution board 10.
Wherein the cable management system 7 is provided with a cable. The power supply end of the matching shore power substation can be connected to the cable in the cable management system 7 under the control of the control unit.
As shown in fig. 7, the ship shore power receiving system includes: a cable management system (comprising a cable winch and a cable device) 7, a shore power connection box 9, a special plug storage box 8 and a main distribution board 10. The cable management system (including cable winches and cable devices) 7, the shore power connection box 9 and the special plug storage box 8 are arranged on a ship deck at the ship end, and can be arranged on a main deck on a port side or a starboard side or respectively arranged on the port side and the starboard side of the ship. The main distribution board 10 is arranged on a ship cabin at a ship end, and is particularly positioned in a ship cabin centralized control room.
In the marine shore power receiving system shown in fig. 7, the cable management system (including the cable winch and the cable device) 7 is mainly composed of a cable winch, a shore power connection cable, a high-voltage/low-voltage cable plug, a rotary cable holder, and the like. The connection between the parts of the cable management system 7 can be seen in the example shown in fig. 7. A shore power connection box 9 is also connected to the cable management system 7.
Specifically, in the cable management system 7, a cable winch is used for storing and winding the onboard cable, the input end of the cable winch is connected with a high-voltage/low-voltage shore power junction box 6 of the port shore power system through a high-voltage/low-voltage cable plug, and the output end of the cable winch is connected with a shore power junction box 9 on the ship.
In the ship shore power receiving system shown in fig. 7, the shore power connection box 9 includes a shore power connection panel, a high-voltage/low-voltage shore power distribution panel, and the like. The shore power connection screen can display state parameters such as shore power phase sequence, voltage, current, frequency and power. A high/low voltage shore power distribution panel is mainly used for installing high/low voltage circuit breakers and protection and measurement devices.
In some embodiments, the shore power receiving system further comprises: an emergency distribution unit, such as an emergency distribution panel 11, a generator 12 and a transformer 13. The main power distribution unit includes: shore power tie switch 101, winch disconnector 102, emergency switchboard switch 103, generator switch 104 and load switch 105.
The shore power connection box 9 is connected to a main distribution line of the main distribution unit through a shore power interconnection switch 101. The main distribution line of the main distribution unit is connected to the emergency distribution unit via the emergency distribution board switch 103. The main distribution line of the main distribution unit is connected to the generator 12 via a generator switch 104. The main distribution line of the main distribution unit is connected to the transformer 13 via the load switch 105 and further to the load 14 of the vessel.
In the marine shore power receiving system shown in fig. 7, the main distribution board 10 includes a shore power interconnection switch 101, a winch isolation switch 102, an emergency distribution board switch 103, a generator switch 104, a load switch 105, and the like.
The shore power connection box 9 is associated with the shore power interconnection switch 101 on the main distribution board 10, and controls the shore power system (i.e. the port shore power supply system and the ship shore power receiving system) to operate normally. When each parameter displayed on the shore power distribution panel is normal, the high-voltage/low-voltage circuit breaker is closed, so that the port shore power supply system can be connected to the shore power interconnection switch 101 on the main distribution panel 10 of the cabin centralized control room in the ship shore power receiving system.
The winch isolating switch 102 and shore power have an interlocking function, namely the shore power cannot be switched on under the condition that the winch isolating switch 102 is not switched on, and the winch isolating switch 102 cannot be switched off after the shore power is switched on for power supply. Therefore, the cable management system (comprising the cable winch and the cable device) 7 has an interlocking function with shore power, so that the power communication of the cable management system (comprising the cable winch and the cable device) 7 and the switching-on of the port shore power/ship shore power have synchronous consistency, and the safety of the shore power system is improved.
In addition, boats and ships shore power receiving system still includes: emergency distribution board 11, ship generator 12, transformer 13 and ship load 14. The emergency switchboard switch 103 is connected to the emergency switchboard 11. The generator switch 104 is connected to the marine generator 12. The load switch 105 is connected to the ship load 14 via the transformer 13.
The shore connection mode of the shore power system shown in fig. 7 is as follows: the commercial power is drawn out through the power supply bus of the power grid 1, enters the voltage transformation and frequency conversion device 3 through the high-voltage/low-voltage incoming line switch cabinet 2, sequentially passes through the voltage transformation module 31 to transform the incoming line voltage, outputs alternating current with more stable voltage and frequency through the frequency conversion module 32, changes the power supply grade of the system through the filtering module 33, and improves the power supply quality of the system. The power supply modulated by the voltage and frequency conversion device 3 is connected to an isolation transformer 4 to isolate shore power from ship power, and the output end of the isolation transformer 4 is connected with an outgoing line switch cabinet 5. The output end of the outgoing switch cabinet 5 is connected with the input end of a high-voltage/low-voltage shore power junction box 6, and the output end of the high-voltage/low-voltage shore power junction box 6 is connected with a shipboard cable in a cable management system 7 (comprising a cable winch and a cable device) through a high-voltage/low-voltage cable plug through a quick connector. The high/low voltage cable plugs are stored in a dedicated plug storage box 8. Shore power is led to the vessel by means of the onboard cable in the cable management system 7 (containing cable winches and cable arrangements) to the input of the shore power connection box 9. Through the switching of bank electricity connecting box 9, the bank electricity power can be connected to bank electricity interconnection switch 101 on main distribution board 10, and the output of bank electricity connecting box is connected with winch isolator 102 on main distribution board 10 simultaneously, and winch isolator 102 interlocks with bank electricity interconnection switch 101 each other, realizes closing and breaking of bank electricity power jointly. When the winch isolation switch 102 is closed with the shore power interconnection switch 101, the shore power supply is connected to the ship main switchboard bus and operates in parallel with the ship generator 12 to supply power to the emergency switchboard 11 and the ship load 14.
In some embodiments, the monitoring system comprises: the system comprises a port shore power supply substation monitoring subsystem and a ship-borne monitoring subsystem.
Wherein, monitoring system, every in more than one bank electricity power supply substation power supply parameter and/or equipment parameter of bank electricity power supply substation, and monitor bank electricity powered system's power consumption parameter and/or equipment parameter, include: the port shore power supply substation monitoring subsystem is configured to monitor power supply parameters and/or equipment parameters of one corresponding shore power supply substation in one or more shore power supply substations. The power supply parameters of the shore power supply substation comprise: and the working state of the shore power supply substation. The power supply parameter of bank electricity power supply substation still includes: at least one of rated voltage and plant capacity. The equipment parameters of the shore power supply substation comprise: switching state of the power supply equipment of the shore power supply substation. The equipment parameter of shore power supply substation still includes: at least one of voltage, current, power.
In the state monitoring and remote fault diagnosis system of the ship shore power system shown in fig. 8, each port shore power supply substation monitoring subsystem includes: n port shore power supply substation monitoring subsystems, such as a first port shore power supply substation monitoring subsystem A1, a second port shore power supply substation monitoring subsystem A2, AN Nth port shore power supply substation monitoring subsystem AN and the like, wherein N is a positive integer.
The shore power supply substation monitoring subsystem of each port can provide rated voltage of the shore power supply substation, working state of each power supply substation and power station capacity. Each port shore power supply substation monitoring subsystem mainly comprises each monitoring sensor, a data acquisition system, a data communication module, a ship shore power system upper computer and the like. Each monitoring sensor in each port shore power supply substation monitoring subsystem mainly collects the switch state, current, voltage, power factor, active power, reactive power and the like of the high-voltage/low-voltage incoming line switch cabinet 2, collects the transformer temperature of the variable-voltage frequency conversion device 3, the current, voltage, power factor, frequency, active power, reactive power and the like of the frequency conversion device, and collects the cable connection readiness, emergency disconnection, grounding, equipotential detection and the like of the high-voltage/low-voltage shore power connection box 5.
For example: the monitoring sensor of each port shore power supply substation monitoring subsystem gathers each monitoring signal, if: the current sensor collects current analog signals in the voltage-variable frequency conversion device 3, the current analog signals are converted into digital signals through the AD analog-to-digital converter and are provided for the data acquisition system, the data acquisition system transmits collected information to the upper computer of each shore power supply substation ship shore power system through RS485 serial port communication, and data are transmitted to the harbor navigation centralized control center B through the CAN bus F1.
The number of the ship-borne monitoring subsystems is more than one, and one ship-borne monitoring subsystem is configured to monitor power utilization parameters and/or equipment parameters of one shore power receiving system. The power consumption parameter of shore power receiving system includes: an identification signal of the shore power powered system. The power consumption parameter of shore power receiving system still includes: at least one of the plant capacity and the rated voltage. The equipment parameters of the shore power receiving system comprise: and the on-off state of the electric equipment of the shore power receiving system. The equipment parameters of the shore power receiving system further comprise: at least one of a voltage, a current, and a temperature of a power-consuming device of the shore power receiving system.
In the state monitoring and remote fault diagnosis system of the ship shore power system shown in fig. 8, each ship-mounted monitoring subsystem includes: the monitoring system comprises P shipborne monitoring subsystems, such as a first shipborne monitoring subsystem C1, a second shipborne monitoring subsystem C2 and a P shipborne monitoring subsystem CP, wherein P is a positive integer.
The shipborne monitoring subsystem can provide power station capacity, rated voltage, user information and the like of the ship power station. Each shipborne monitoring subsystem mainly comprises a monitoring sensor, a data acquisition system, a data communication module and the like. Each monitoring sensor of each shipborne monitoring subsystem mainly collects cable receiving and discharging signals, equipotential detection and the like of a cable winch drum, and ship user information mainly comprises ship electrical loads, load types and the like. The monitoring sensors of the shipborne monitoring subsystems acquire monitoring signals of each ship end, the monitoring signals are converted into digital signals through the AD analog-to-digital converter and provided for the data acquisition system, the data acquisition system transmits the digital signals to a ship shore power system upper computer (such as a ship cabin upper computer) through a data communication module (RS485 serial port communication module), and the ship cabin upper computer transmits the monitoring sensor acquisition information and the ship user information of each shipborne monitoring subsystem to a harbor navigation centralized control center B through a 5G communication network F2.
In some embodiments, the control system comprises: the system comprises a port and aviation centralized control center B, a cloud server D and a remote auxiliary diagnosis center.
The control unit matches a corresponding shore power supply substation for the shore power receiving system from more than one shore power supply substation of the shore power supply system according to the power supply parameter of each shore power supply substation in the shore power supply system and the power consumption parameter of the shore power receiving system, and records the matched shore power supply substation; and under the condition that the ship where the shore power receiving system is located is in shore, controlling the matched shore power supply substation to supply power to the ship where the shore power receiving system is located, and the method comprises the following steps:
the port and navigation centralized control center B is configured to receive power supply parameters of each shore power supply substation in the shore power supply system and power consumption parameters of the shore power receiving system, match corresponding shore power supply substations for the shore power receiving system from more than one shore power supply substations of the shore power supply system according to the power supply parameters of each shore power supply substation in the shore power supply system and the power consumption parameters of the shore power receiving system, and record the matched shore power supply substations; and the number of the first and second groups,
the port and navigation centralized control center B is further configured to transmit control instructions back to the matching shore power supply substation and the shore power receiving system, so that the matching shore power supply substation is controlled to supply power to the ship where the shore power receiving system is located under the condition that the ship where the shore power receiving system is located is in shore.
Specifically, each port shore power supply substation monitoring subsystem mainly collects and monitors operation state parameters in the power supply process of main equipment of the port shore power system, and performs data communication with the port and navigation centralized control center B in real time to ensure data transmission and control of the port and navigation centralized control center B on each power supply substation. And the shipborne monitoring subsystem is mainly used for collecting and monitoring the running state parameters of main equipment of the ship power receiving system and transmitting the equipment information and the ship user information to the port and navigation centralized control center B in real time. And the port and navigation centralized control center B is mainly used for summarizing data transmitted by each port shore power supply substation monitoring subsystem and the shipborne monitoring subsystem, dispatching and distributing shore power used by the port shore power supply substation and the port berthing by using shore power ships and returning control instructions to the port shore power supply substation and the port berthing.
The processing that gathers that port and navigation centralized control center B carries out the data of each harbour bank electricity power supply substation monitoring subsystem and on-board monitoring subsystem transmission, and the safety monitoring process is connected to the ship bank promptly, mainly includes: the port and navigation centralized control center B CAN collect and gather rated voltage of the shore power supply substations provided by the shore power supply substation monitoring subsystems of the ports, working state and power station capacity of each power supply substation and power station capacity of the ship power stations provided by the ship-borne monitoring subsystems through the CAN buses F1 and the 5G communication network F2 respectively, match information provided by the two monitoring subsystems, and if the rated voltage of the port and navigation centralized control center is consistent and the capacity of the shore power supply substations CAN meet requirements of the ship power stations, and the shore power supply substations are in an idle state, matching of port-approaching ships and the shore power supply substations CAN be achieved, the centralized control center sends back instructions to the ships to guide the port-approaching ships to use the appropriate shore power supply substations.
In some embodiments, the control system further comprises: cloud server D and a remote auxiliary diagnosis center.
Wherein, control system according to in the shore power supply system every the equipment parameter of shore power supply substation, carry out fault detection to the power supply unit of corresponding shore power supply substation, include:
the port and navigation centralized control center B is also configured to determine whether equipment parameters of power supply equipment of the corresponding shore power supply substation are within a set first parameter range, and if not, determine that the power supply equipment of the corresponding shore power supply substation fails, and initiate a first warning message that the power supply equipment of the corresponding shore power supply substation fails.
The cloud server D is configured to store the equipment parameters of the power supply equipment of the corresponding shore power supply substation and/or the fault condition of the power supply equipment of the corresponding shore power supply substation, so as to obtain first storage data.
The remote auxiliary diagnosis center is configured to analyze faults occurring in the power supply equipment of the corresponding shore power supply substation by using a pre-trained first fault diagnosis model based on the first stored data to obtain a first analysis result, and feed the first analysis result back to the cloud server D.
The cloud server D is further configured to store the first analysis result.
And the port and aviation centralized control center B is also configured to access the first analysis result and process the fault of the power supply equipment of the corresponding shore power supply substation according to the first analysis result.
Similarly, the control system, according to the equipment parameter of the shore power receiving system is right the power consumption equipment of the shore power receiving system carries out fault detection, including:
the port and navigation centralized control center B is further configured to determine whether the equipment parameters of the shore power receiving system are within a set second parameter range, and if not, determine that the equipment parameters of the shore power receiving system are in fault, and initiate a second reminding message that the equipment parameters of the shore power receiving system are in fault.
The cloud server D is configured to store the device parameters of the shore power receiving system and/or the conditions of the device parameters of the shore power receiving system, so as to obtain second storage data.
The remote auxiliary diagnosis center is configured to analyze the fault occurring in the equipment parameter of the shore power receiving system by using a pre-trained second fault diagnosis model based on the second stored data to obtain a second analysis result, and feed back the first analysis result to the cloud server D.
The cloud server D is further configured to store the second analysis result.
And the port and navigation centralized control center B is also configured to access the second analysis result and process the fault of the equipment parameter of the shore power receiving system according to the second analysis result.
In the example shown in fig. 6, the port shore power supply system is connected to the ship shore power receiving system. And the port shore power supply system and the ship shore power receiving system are also respectively connected with the ship shore state monitoring and remote fault diagnosis system.
Wherein, ship bank state monitoring and remote fault diagnosis system includes: the system comprises a port shore power supply substation monitoring subsystem, a shipborne monitoring subsystem, a port navigation centralized control center, a cloud server and a remote auxiliary diagnosis center. The remote auxiliary diagnosis center, the cloud server and the port and navigation centralized control center are sequentially connected. And the port and navigation centralized control center is also respectively connected with a port shore power supply substation monitoring subsystem and a shipborne monitoring subsystem. And the port shore power supply substation monitoring subsystem is also connected with the port shore power supply system. And the shipborne monitoring subsystem is also connected with a ship shore power receiving system.
Fig. 8 is a schematic structural diagram of an embodiment of a state monitoring and remote fault diagnosis system of a ship shore power system. As shown in fig. 8, the state monitoring and remote fault diagnosis system of the ship shore power system mainly comprises monitoring subsystems of each port shore power supply substation, each ship-mounted monitoring subsystem, a port and navigation centralized control center B, a distributed remote auxiliary diagnosis center and a cloud server D. And each port shore power supply substation monitoring subsystem is connected with a port navigation centralized control center B through a CAN bus F1. And the port and navigation centralized control center B is connected with each shipborne monitoring subsystem through a 5G communication network F2. And the cloud server D is connected with the port and aviation centralized control center B through a 5G communication network F2 or a broadband network F3. The cloud server D is also connected with the distributed remote auxiliary diagnosis center through a 5G communication network F2 or a broadband network F3. The state monitoring and remote fault diagnosis system designed by the scheme of the invention orderly connects the harbor-berthing ship, the shore power supply substation, the harbor and navigation centralized control center and all distributed resources together through wired and wireless communication technologies, realizes the real-time transmission of the state information of the shore power system, the full and effective excavation of data and the reasonable utilization of the multi-part distributed resources, and ensures the orderly, reasonable, safe and reliable operation of the shore power system.
In the state monitoring and remote fault diagnosis system of the ship shore power system shown in fig. 8, a port and navigation centralized control center B is mainly composed of an industrial control computer, a database server, an alarm indicating device and the like.
The industrial control computer of the port and navigation centralized control center B receives data information transmitted by each port shore power supply substation monitoring subsystem through a CAN bus F1 and information transmitted by each shipborne monitoring subsystem through a 5G communication network F2, stores the data information in a database server, is convenient for historical data query and analysis, and displays the abnormal monitoring alarm signals of each port shore power supply substation monitoring subsystem and each shipborne monitoring subsystem through an alarm indicating device.
An industrial control computer of the port and navigation centralized control center B analyzes and processes the electricity utilization information (such as average electricity utilization amount per hour, power factor mean value, electricity load and the like) of ship users, analyzes the state of the current shore power supply substation to determine the working state, power supply parameters and the like of the current shore power supply substation, matches the most appropriate shore power supply substation for the port-in ship, and sends instruction information to the ship through a 5G communication network F2. In addition, the port and aviation centralized control center B uploads the data stored in the database server to the cloud server D through the 5G communication network F2 or the broadband network F3.
Specifically, the port and navigation centralized control center B can process data information of the shore power supply substation, alarm the abnormal state of the equipment, and transmit data to the cloud server D. The distributed remote auxiliary diagnosis center can be arranged in a related college or scientific research institute, and mainly utilizes a big data processing technology and an artificial intelligence algorithm to analyze state monitoring data of a port shore power system and power utilization data of ship users, so that more accurate fault positioning, fault diagnosis and analysis and trend prediction of power utilization information are realized, and results are fed back to the cloud server D for the port and navigation centralized control center B to access. And the cloud server D is mainly used for storing, calculating and sharing data in the state monitoring and remote fault diagnosis system.
When the shore power supply substation is in a working state, namely the shore power supply substation supplies power to the harbor ship, the harbor navigation centralized control center B can also collect state monitoring information of main equipment of the power supply substation, which is provided by each shore power supply substation monitoring subsystem, such as: the on-off state, current and voltage of the high/low voltage incoming line switch cabinet 2, the temperature of the transformation module 31 of the transformation frequency conversion device 3 and the like are compared with the normal threshold of each signal through monitoring information, if the monitoring information exceeds the normal threshold, the abnormal state of the power supply substation is found in time, and the health state of the power supply substation is monitored.
In the state monitoring and remote fault diagnosis system of the ship shore power system shown in fig. 8, the distributed remote auxiliary diagnosis center includes: the M remote auxiliary diagnosis centers, such as a first remote auxiliary diagnosis center E1, a second remote auxiliary diagnosis center E2 and a pth remote auxiliary diagnosis center EM. In the state monitoring and remote fault diagnosis system of the ship shore power system shown in fig. 8, each remote auxiliary diagnosis center of the distributed remote auxiliary diagnosis centers is mainly composed of a computer, a database server, an information display large screen and the like.
The distributed remote auxiliary diagnosis center accesses data resources in the cloud server D from a computer terminal through a 5G communication network F2 or a broadband network F3, utilizes the computing capacity of the cloud server D, carries out fault location and fault diagnosis on a ship shore power system based on big data analysis and an intelligent algorithm, carries out mining and trend prediction on power utilization information of a port-berthing ship, feeds results back to the cloud server D through a 5G communication network F2 or a broadband network F3, and a port navigation centralized control center B can acquire auxiliary diagnosis results provided by the distributed remote auxiliary diagnosis center through accessing the cloud server D and is used for management and deployment of the whole ship shore power system. In addition, the database server is used for storing auxiliary diagnosis results, and the information display screen is used for displaying the auxiliary diagnosis results. Specifically, the database server may store data resources for performing fault diagnosis, and may also store auxiliary diagnosis results; the information display screen can be used for displaying data information and assisting the display of diagnosis results.
Here, in the implementation process of fault location, fault diagnosis, analysis of power consumption information, and trend prediction, different implementation manners may be adopted for specific application scenarios, and the following exemplary description is given.
And fault positioning can be realized by comparing and analyzing monitoring data acquired by each port shore power supply substation monitoring subsystem and combining a logic topological graph and the like of the system. For example: in the short-circuit fault location of the shore power system, firstly, the logic topological relation of the shore power system is determined, namely, the position relation between each monitoring point is determined, when the current mutation at a certain position is found in a monitoring signal and exceeds a certain amplitude value and is reduced to zero after a period of time, the principle of the short-circuit fault is comprehensively considered, and the short-circuit fault at the position is judged.
And fault diagnosis, namely comprehensively utilizing expert experience knowledge and accumulated historical data and adopting a confidence rule reasoning method to carry out fault diagnosis on main components in the shore power system. Taking the fault diagnosis of the inverter, which is an important component in the frequency conversion module 32, as an example, the fault modes, such as a single-tube fault in an IGBT open-circuit fault, a simultaneous fault of two power tubes of the same bridge arm, and a simultaneous fault of two power tubes of the same half-bridge cross, are used as the output of the diagnosis model, and the features extracted from the acquired current signal, such as the mean value and standard deviation of the upper and lower boundary deviations of the signal, are used as the input of the diagnosis model. Firstly, a confidence rule base for fault diagnosis is constructed on the basis of expert experience and statistical analysis of historical fault data of the inverter, each confidence rule comprises two parts, namely a rule front part (namely a combination of fault diagnosis characteristics) and a rule back part (namely a fault mode to be diagnosed), and each confidence rule represents the occurring confidence level of each fault mode in the form of confidence level. And then calculating the activation weight of each confidence rule in the confidence library according to the fault characteristic value of the sample to be diagnosed, wherein the larger the activation weight is, the larger the effect of the rule on generating a final diagnosis result is. And finally, performing fusion calculation on the activated multiple confidence rules by adopting an evidence theory to obtain the confidence level distribution of each fault mode corresponding to the sample to be diagnosed, and taking the fault mode with the maximum confidence level as the optimal fault mode which possibly occurs.
In the state monitoring and remote fault diagnosis system of the ship shore power system shown in fig. 8, the cloud server D is a virtual machine. The virtual machine comprises components such as a CPU, a memory, a disk, a network, an operating system and the like. The CPU, the memory, the disk, the network and the operating system are connected together to form the cloud server, wherein the CPU is the core of operation and control of the cloud server and is a final execution unit for information processing and program operation; the memory is used for temporarily storing the operation data in the CPU; the disk is the main storage medium, and data cannot be lost after power failure; the network realizes data communication and resource sharing; the operating system manages and configures the memory, determines the priority of the supply and demand of system resources, controls the input device and the output device, operates the network, manages the file system and the like. Different IO, calculation, storage and network capabilities are provided by different configurations of CPU, memory, IO (input output), network and the like. The port and aviation centralized control center B and the remote auxiliary diagnosis center are based on a computer and used for carrying out remote transmission, access and computational analysis on data in the cloud server D through the Internet.
In the virtual machine, the different configurations of the CPU, the memory, the IO, the network, and the like may refer to: the cloud server D usually adopts a renting mode, and in the cloud servers D provided by a service provider, the hardware models and specifications of different series of cloud servers D are usually different, that is, the cloud servers D include CPUs, memories, IO, networks and the like. Different configurations provide different CPUs, memories, IO, networks. The configuration and selection of the relevant components should be made according to the specific application scenario. For example, in the application scenario, the optional configuration mode of the computing cloud server mainly based on data analysis and computing is as follows: the configuration of the CPU with 28 cores, the memory with 224GB, the network with 10G, the SSD cloud disk or the SSD local disk can be adjusted according to specific conditions.
Here, the port and aviation centralized control center B and the remote auxiliary diagnosis center perform remote transmission, access and computational analysis on data in the cloud server D through the internet based on a computer, and may refer to: the port and aviation centralized control center B and the remote auxiliary diagnosis center can transmit data to a database of the cloud server D through a broadband network for storage, and access is performed, namely, the application programs of the port and aviation centralized control center B and the remote auxiliary diagnosis center can read the data from the database of the cloud server D and return the data to the application program for processing. The remote auxiliary diagnosis center accesses data in the cloud server D, analyzes and processes the data by using an intelligent algorithm, realizes fault isolation, fault diagnosis, trend prediction of power utilization information and the like, and feeds back a calculation result to another database of the cloud server D. The port and aviation centralized control center B reads the data calculation result in the database, so that the health state and the power utilization rule of each device of the shore power supply substation can be better mastered by means of external distributed resources, and a port and aviation manager can make a more reasonable decision. Further, the cloud server D analyzes and processes state monitoring data of each power supply substation for port shore power, power consumption data of a port ship, and the like based on an intelligent algorithm, and performs fault isolation, diagnosis, trend prediction of power consumption information, and the like.
In the scheme of the invention, the ship-shore state monitoring and remote fault diagnosis system is mainly used for monitoring the operation state parameters of each shore power supply substation of a port in real time and effectively distributing the power load of each power supply channel aiming at a port shore power supply system. Meanwhile, for the ship shore power receiving system, fault positioning and fault diagnosis are carried out on hardware faults and the like of different equipment in the ship shore power system, so that the safety and reliability of the shore power supply system are ensured.
In some embodiments, the port and navigation centralized control center B matches, according to the power supply parameter of each shore power supply substation in the shore power supply system and the power consumption parameter of the shore power receiving system, a corresponding shore power supply substation for the shore power receiving system from more than one shore power supply substations of the shore power supply system, including: the port and aviation centralized control center B is specifically further configured to determine, according to a correspondence between set power supply parameters and set power utilization parameters, set power supply parameters corresponding to the set power utilization parameters that are the same as the power utilization parameters of the shore power supply system in the correspondence as matching power supply parameters corresponding to the power utilization parameters of the shore power supply system. And determining the shore power supply substation corresponding to the power supply parameter which is the same as the matched power supply parameter in the shore power supply system as the shore power supply substation matched with the shore power receiving system.
Specifically, the analysis of the electricity utilization information mainly comprises mining data by using an intelligent algorithm based on the electricity utilization information of the harbor ships, and realizing clustering of electricity utilization behaviors of the harbor ships and correlation analysis of factors such as surrounding weather. For example, statistical analysis is performed on the electricity data of the port berthing ships, peak load rate, valley load rate, average load rate, all-day load rate, peak-valley difference rate, daily electricity consumption load, daily average load, daily maximum load, daily minimum load, and the like are extracted from the electricity data, and the electricity consumption behaviors of the port berthing ships are clustered by adopting a k-means clustering method, such as: the whole power utilization level is higher, and the peak of power utilization concentrates noon peak and evening peak. The whole power utilization level is medium, and a relatively obvious late peak exists in the power utilization. The whole power utilization level is low, and the power utilization has a more obvious noon peak and the like. According to the clustering result, the port and navigation centralized control center can reasonably plan and schedule the port and shore power supply substation resources according to the power utilization information of the port-berthing ship. The specific k-means clustering method comprises the following steps: the method comprises the steps of properly and randomly selecting initial centers of k classes, calculating Euclidean distances from each sample to the k centers in sample iteration of electricity utilization behavior characteristics of the port-berthing ship, classifying the samples into the class where the center with the shortest distance is located, then updating center values of the k classes by using a mean value method, repeating the calculating steps, and finishing clustering when the moving distance of the center values of the classes meets a certain condition (artificially set threshold).
The power utilization trend prediction is mainly based on port power load data, and an intelligent algorithm is adopted to predict data in a short term (daily power load-weekly power load), a medium term (seasonal power load) and a long term (annual power load), so that the normal operation of a power system is ensured, the rapid response of the power system to the load is ensured, and the planned control of the load is realized. For example: and predicting the daily power load by adopting an autoregressive moving average, and taking the port power load data of the previous seven days as the input of a prediction model for predicting the power load of 1-2 days in the future. The specific autoregressive moving average method comprises the following steps: calculating an autocorrelation coefficient and a partial autocorrelation coefficient of the port power load data of the previous seven days, determining the values of p and q in a model in an autoregressive moving average model (ARMA (p, q)) by using an AIC criterion order-fixing method according to the characteristics of the autocorrelation coefficient and the partial autocorrelation coefficient, estimating unknown parameters in the ARMA (p, q) model by using a minimum forming estimation method based on the port power load data of the previous seven days, checking the validity of the model, and if the model does not pass the checking, predicting the future power load by using the established ARMA (p, q) model after the model passes the checking.
According to the scheme provided by the invention, aiming at the unique structure of the ship shore power system, the designed state monitoring and remote fault diagnosis system realizes effective comprehensive utilization of distributed resources, is beneficial to realizing rapid positioning and diagnosis of faults, improves the safety and reliability of the shore power system, can meet the demand of using shore power for port-approaching ships, is suitable for the trend of large-scale development of ships, and has a high intelligent level.
By adopting the technical scheme of the invention, the ship shore state monitoring and remote fault diagnosis system is arranged aiming at each port shore power supply system and each ship shore power receiving system, the proper port shore power supply system can be allocated for the corresponding ship shore power receiving system by combining the power supply condition of each port shore power supply system and the power demand condition of each ship shore power receiving system, the power supply of the corresponding ship shore power receiving system by using the port shore power supply system is realized, and the fault conditions of the port shore power supply system and each ship shore power receiving system can be monitored, so that the state monitoring and fault diagnosis of the ship shore power system are facilitated to improve the power supply reliability of the ship shore power system.
According to an embodiment of the invention, there is also provided a terminal corresponding to a control device of a marine shore power system. The terminal may include: the control device for a ship shore power system described above.
Since the processes and functions implemented by the terminal of this embodiment basically correspond to the embodiments, principles and examples of the apparatus, reference may be made to the related descriptions in the foregoing embodiments for details which are not described herein in this embodiment.
By adopting the technical scheme, the ship shore state monitoring and remote fault diagnosis system is arranged aiming at each port shore power supply system and each ship shore power receiving system, the power supply condition of each port shore power supply system and the power demand condition of each ship shore power receiving system can be combined, the proper port shore power supply system is allocated for the corresponding ship shore power receiving system, the corresponding ship shore power receiving system is powered by the port shore power supply system, the fault conditions of the port shore power supply system and each ship shore power receiving system can be monitored, the comprehensive utilization of distributed resources can be realized, and the power is provided for the large-capacity power load of the ships in the port.
According to an embodiment of the present invention, there is also provided a control method of a ship shore power system corresponding to the control device of the ship shore power system, as shown in fig. 2, which is a schematic flow chart of an embodiment of the method of the present invention. The marine shore power system, comprising: the shore power supply system is specifically a port shore power supply system, and the shore power receiving system is specifically a ship shore power receiving system. The shore power supply system comprises: more than one shore power supply substation. The shore power receiving system is arranged on the ship.
The control method of the ship shore power system comprises the following steps: step S110; further comprising: step S120 and/or step S130.
At step S110, a power supply parameter and/or an equipment parameter of each of the shore power supply substations in the one or more shore power supply substations is monitored, and a power consumption parameter and/or an equipment parameter of the shore power receiving system is monitored.
At step S120, matching a corresponding shore power supply substation for the shore power receiving system from more than one shore power supply substation of the shore power supply system according to the power supply parameter of each shore power supply substation in the shore power supply system and the power consumption parameter of the shore power receiving system, and recording as a matched shore power supply substation; and under the condition that the ship where the shore power receiving system is located is in shore, controlling the matched shore power supply substation to supply power to the ship where the shore power receiving system is located.
At step S130, performing fault detection on the power supply device of the corresponding shore power supply substation according to the device parameter of each shore power supply substation in the shore power supply system, for example, determining whether the power supply device of the corresponding shore power supply substation is faulty, so as to initiate a first warning message in time when the power supply device of the corresponding shore power supply substation is faulty; and/or, according to the equipment parameters of the shore power receiving system, carrying out fault detection on the power utilization equipment of the shore power receiving system, if determining whether the power utilization equipment of the shore power receiving system is in fault or not, so that when the power utilization equipment of the shore power receiving system is in fault, a second reminding message is timely initiated.
In order to improve the safety and reliability of the ship shore power system and ensure that the ship shore power system meets the increasing power demand of ships, the invention provides the ship shore power system. Fig. 6 is a schematic block diagram of an embodiment of a marine shore power system with condition monitoring and remote fault diagnosis capabilities. As shown in fig. 6, the ship shore power system with the state monitoring and remote fault diagnosis capability comprises: the system comprises a port shore power supply system, a ship shore power receiving system and a ship shore state monitoring and remote fault diagnosis system. A port shore power supply system is a power supply system for supplying power to port ships from ports. The ship shore power receiving system can receive power supplied by a shore-based power supply and meet the power demand of ship loads.
The self-contained state monitoring and remote fault diagnosis system of the ship shore power system provided by the scheme of the invention can reduce the safety risk of the ship shore power system, improve the reliability and safety of the ship shore power system, realize the comprehensive utilization of distributed resources, provide power for large-capacity power utilization loads of ships in port and meet the power utilization requirements of power consumption after the ships are berthed, fast connection of ship shore cables and the like.
In some embodiments, the matching shore power substation comprises: the system comprises an incoming line switch cabinet, a voltage and frequency conversion device 3, an isolation transformer 4, an outgoing line switch cabinet 5 and a shore power junction box, wherein the incoming line switch cabinet is a high-voltage/low-voltage incoming line switch cabinet 2, and the shore power junction box is a high-voltage/low-voltage shore power junction box 6.
The power grid 1 of commercial power, through the inlet wire cubical switchboard, vary voltage frequency conversion device 3, isolation transformer 4 the cubical switchboard 5 of being qualified for the next round of competitions with behind the bank electricity junction box, can be in under control system's control, export to match bank electricity power supply substation, for the power supply of bank electricity receiving system place boats and ships.
Fig. 7 is a schematic structural diagram of an embodiment of a shore connection structure of a shore power system. As shown in fig. 7, at the shore end, the port shore power supply system includes: the high-voltage/low-voltage power supply system comprises a high-voltage/low-voltage incoming switch cabinet 2, a variable-voltage variable-frequency device 3, an isolation transformer 4, an outgoing switch cabinet 5 and a high-voltage/low-voltage shore power junction box 6. The input end of the high-voltage/low-voltage incoming line switch cabinet 2 is connected with the power grid 1. The output end of the high-voltage/low-voltage incoming line switch cabinet 2 is connected with a voltage transformation and frequency conversion device 3. The voltage and frequency conversion device 3 sequentially passes through an isolation transformer 4, an outgoing line switch cabinet 5 and a high-voltage/low-voltage shore power junction box 6 and then is output to a ship shore power receiving system at a ship end.
In the shore power supply system for a port shown in fig. 7, the voltage-variable frequency conversion device 3 includes: the transformer module 31, the frequency conversion module 32 and the filter module 33. In the voltage and frequency conversion device 3, a voltage conversion module 31, a frequency conversion module 32 and a filter module 33 are connected in sequence.
The transformation module 31 transforms the incoming line voltage output from the output end of the high-voltage/low-voltage incoming line switch cabinet 2 to the transformation frequency conversion device 3 by using the electromagnetic induction principle, the input end of the transformation module 31 is connected with the output end of the high-voltage/low-voltage incoming line switch cabinet 2, and the output end of the transformation module 31 is connected with the frequency conversion module 32.
The frequency conversion module 32 performs ac-dc-ac conversion on the ac power input by the power grid 1 through the high-voltage/low-voltage incoming switch cabinet 2 and the voltage transformation module 31, outputs ac power with more stable voltage and frequency, the input end of the frequency conversion module 32 is connected with the output end of the voltage transformation module 31, and the output end of the frequency conversion module 32 is connected with the input end of the filtering module 33. The voltage and frequency of the ac power output by the frequency conversion module 32 are within a reasonable range, which may be: the alternating voltage is 11000V and the frequency is 60 Hz. Alternating voltage 6600V, frequency 60 Hz. The alternating voltage is 6000V, and the frequency is 50 Hz. An AC voltage of 450V, a frequency of 60 or 50Hz, and the like.
The filtering module 33 provides a good sine waveform for the output of the whole port shore power supply system to ensure good power supply quality, the input end of the filtering module 33 is connected with the output end of the frequency conversion module 32, and the output end of the filtering module 33 is connected with the input end of the isolation transformer 4.
In the port shore power supply system shown in fig. 7, the isolation transformer 4 is mainly used for physically isolating the port shore power supply system from the ship shore power receiving system by completely insulating the primary side and the secondary side, so as to play a role of protection, the input end of the isolation transformer 4 is connected with the output end of the voltage transformation frequency conversion device 3, and the output end of the isolation transformer 4 is connected with the input end of the outgoing line switch cabinet 5.
In the port shore power supply system shown in fig. 7, the high voltage/low voltage shore power connection box 6 mainly functions as a high voltage/low voltage power supply connection, a shore communication connection, and a shore connection safety monitoring. The high-voltage/low-voltage shore power junction box 6 mainly comprises a base, a box body, a box door, a door lock, an indicator light, a quick socket, a heat dissipation unit and the like. In the high/low voltage shore power junction box 6, a box body is installed on a base, a box door, a door lock and an indicator light are all installed on the box body, and a quick socket, a heat dissipation unit and the like are installed inside the box body.
The ship-shore communication connection means that optical fiber transceivers are arranged at a ship end and a shore end respectively through optical fiber communication between ships and shore. The signal is subjected to electro-optical conversion at the transmitting end, and the converted optical signal is transmitted in light. The receiving end carries out optical-electrical reduction on the optical signal through the optical fiber receiver, and the optical signal is converted into a corresponding electrical signal, so that communication connection of two ends of the ship shore is realized.
In the port shore power supply system shown in fig. 7, the input end of the high-voltage/low-voltage shore power junction box 6 is connected to the output end of the outgoing switch cabinet 5, and the output end of the high-voltage/low-voltage shore power junction box 6 is connected to the onboard cable wound by the cable winch in the ship shore power receiving system at the ship end through the quick socket.
In some embodiments, the shore power powered system comprises: a cable management system 7, a shore power connection box 9, a plug storage box 8 and a main power distribution unit, such as a main distribution board 10.
Wherein the cable management system 7 is provided with a cable. The power supply end of the matching shore power substation can be connected to the cable in the cable management system 7 under the control of the control unit.
The cables in the cable management system 7 are also connected to a plug storage box 8.
As shown in fig. 7, the ship shore power receiving system includes: a cable management system (comprising a cable winch and a cable device) 7, a shore power connection box 9, a special plug storage box 8 and a main distribution board 10. The cable management system (including cable winches and cable devices) 7, the shore power connection box 9 and the special plug storage box 8 are arranged on a ship deck at the ship end, and can be arranged on a main deck on a port side or a starboard side or respectively arranged on the port side and the starboard side of the ship. The main distribution board 10 is arranged on a ship cabin at a ship end, and is particularly positioned in a ship cabin centralized control room.
In the marine shore power receiving system shown in fig. 7, the cable management system (including the cable winch and the cable device) 7 is mainly composed of a cable winch, a shore power connection cable, a high-voltage/low-voltage cable plug, a rotary cable holder, and the like. The connection between the various parts of the cable management system 7 can be seen in the example shown in fig. 7. And a shore power connection box 9 is also connected with the cable management system 7.
Specifically, in the cable management system 7, a cable winch is used for storing and winding the onboard cable, the input end of the cable winch is connected with a high-voltage/low-voltage shore power junction box 6 of the port shore power system through a high-voltage/low-voltage cable plug, and the output end of the cable winch is connected with a shore power junction box 9 on the ship.
In the ship shore power receiving system shown in fig. 7, the shore power connection box 9 includes a shore power connection panel, a high-voltage/low-voltage shore power distribution panel, and the like. And the shore power connection screen can display state parameters such as shore power phase sequence, voltage, current, frequency and power. A high/low voltage shore power distribution panel is mainly used for installing a high/low voltage circuit breaker and a protection and measurement device.
In some embodiments, the shore power receiving system further comprises: an emergency power distribution unit, such as an emergency distribution board 11, a generator 12 and a transformer 13. The main power distribution unit includes: shore power tie switch 101, winch disconnector 102, emergency switchboard switch 103, generator switch 104 and load switch 105.
The shore power connection box 9 is connected to a main distribution line of the main distribution unit through a shore power interconnection switch 101. The main distribution line of the main distribution unit is connected to the emergency distribution unit via the emergency distribution board switch 103. The main distribution line of the main distribution unit is connected to the generator 12 via a generator switch 104. The main distribution line of the main distribution unit is connected to the transformer 13 via the load switch 105 and further to the load 14 of the vessel.
In the marine shore power receiving system shown in fig. 7, the main distribution board 10 includes a shore power interconnection switch 101, a winch isolation switch 102, an emergency distribution board switch 103, a generator switch 104, a load switch 105, and the like.
The shore power connection box 9 is associated with the shore power interconnection switch 101 on the main distribution board 10, and controls the shore power system (i.e. the port shore power supply system and the ship shore power receiving system) to operate normally. When each parameter displayed on the shore power distribution panel is normal, the high-voltage/low-voltage circuit breaker is closed, so that the port shore power supply system can be connected to the shore power interconnection switch 101 on the main distribution panel 10 of the cabin centralized control room in the ship shore power receiving system.
The winch isolating switch 102 and shore power have an interlocking function, namely the shore power cannot be switched on under the condition that the winch isolating switch 102 is not switched on, and the winch isolating switch 102 cannot be switched off after the shore power is switched on for power supply. Therefore, the cable management system (comprising the cable winch and the cable device) 7 has an interlocking function with shore power, so that the power communication of the cable management system (comprising the cable winch and the cable device) 7 and the switching-on of the port shore power/ship shore power have synchronous consistency, and the safety of the shore power system is improved.
In addition, boats and ships shore power receiving system still includes: emergency distribution board 11, ship generator 12, transformer 13 and ship load 14. The emergency switchboard switch 103 is connected with the emergency switchboard 11. The generator switch 104 is connected to the marine generator 12. The load switch 105 is connected to the ship load 14 via the transformer 13.
The shore connection mode of the shore power system shown in fig. 7 is as follows: the commercial power is drawn out through the power supply bus of the power grid 1, enters the voltage transformation and frequency conversion device 3 through the high-voltage/low-voltage incoming line switch cabinet 2, sequentially passes through the voltage transformation module 31 to transform the incoming line voltage, outputs alternating current with more stable voltage and frequency through the frequency conversion module 32, changes the power supply grade of the system through the filtering module 33, and improves the power supply quality of the system. The power supply modulated by the voltage transformation and frequency conversion device 3 is connected to an isolation transformer 4 to isolate shore power from ship power, and the output end of the isolation transformer 4 is connected with an outgoing line switch cabinet 5. The output end of the outgoing switch cabinet 5 is connected with the input end of a high-voltage/low-voltage shore power junction box 6, and the output end of the high-voltage/low-voltage shore power junction box 6 is connected with a shipboard cable in a cable management system 7 (comprising a cable winch and a cable device) through a high-voltage/low-voltage cable plug through a quick connector. The high/low voltage cable plugs are stored in a dedicated plug storage box 8. Shore power is led to the vessel by means of the onboard cable in the cable management system 7 (containing cable winches and cable arrangements) to the input of the shore power connection box 9. Through the switching of bank electricity connecting box 9, the bank electricity power can be connected to bank electricity interconnection switch 101 on main distribution board 10, and the output of bank electricity connecting box is connected with winch isolator 102 on main distribution board 10 simultaneously, and winch isolator 102 interlocks with bank electricity interconnection switch 101 each other, realizes closing and breaking of bank electricity power jointly. When the winch isolation switch 102 is closed with the shore power interconnection switch 101, the shore power supply is connected to the ship main switchboard bus and operates in parallel with the ship generator 12 to supply power to the emergency switchboard 11 and the ship load 14.
In some embodiments, the power supply parameters of the shore power supply substation include: and the working state of the shore power supply substation. The power supply parameter of bank electricity power supply substation still includes: at least one of rated voltage and plant capacity. The equipment parameters of the shore power supply substation comprise: switching state of the power supply equipment of the shore power supply substation. The equipment parameter of bank electricity power supply substation still includes: at least one of voltage, current, power.
In the state monitoring and remote fault diagnosis system of the ship shore power system shown in fig. 8, each port shore power supply substation monitoring subsystem includes: n port shore power supply substation monitoring subsystems, such as a first port shore power supply substation monitoring subsystem A1, a second port shore power supply substation monitoring subsystem A2, AN Nth port shore power supply substation monitoring subsystem AN and the like, wherein N is a positive integer.
The shore power supply substation monitoring subsystem of each port can provide rated voltage of the shore power supply substation, working state of each power supply substation and power station capacity. Each port shore power supply substation monitoring subsystem mainly comprises each monitoring sensor, a data acquisition system, a data communication module, a ship shore power system upper computer and the like. Each monitoring sensor in each port shore power supply substation monitoring subsystem mainly collects the switch state, current, voltage, power factor, active power, reactive power and the like of the high-voltage/low-voltage incoming line switch cabinet 2, collects the transformer temperature of the variable-voltage frequency conversion device 3, the current, voltage, power factor, frequency, active power, reactive power and the like of the frequency conversion device, and collects the cable connection readiness, emergency disconnection, grounding, equipotential detection and the like of the high-voltage/low-voltage shore power connection box 5.
For example: the monitoring sensor of each port shore power supply substation monitoring subsystem gathers each monitoring signal, if: the current sensor collects current analog signals in the voltage-variable frequency conversion device 3, the current analog signals are converted into digital signals through the AD analog-to-digital converter and are provided for the data acquisition system, the data acquisition system transmits collected information to the upper computer of each shore power supply substation ship shore power system through RS485 serial port communication, and data are transmitted to the harbor navigation centralized control center B through the CAN bus F1.
In some embodiments, the power consumption parameters of the shore power receiving system include: an identification signal of the shore power powered system. The power consumption parameter of shore power receiving system still includes: at least one of the plant capacity and the rated voltage. The equipment parameters of the shore power receiving system comprise: and the on-off state of the electric equipment of the shore power receiving system. The equipment parameters of the shore power receiving system further comprise: at least one of a voltage, a current, and a temperature of a power-consuming device of the shore power receiving system.
In the state monitoring and remote fault diagnosis system of the ship shore power system shown in fig. 8, each ship-mounted monitoring subsystem includes: the monitoring system comprises P shipborne monitoring subsystems, such as a first shipborne monitoring subsystem C1, a second shipborne monitoring subsystem C2 and a P shipborne monitoring subsystem CP, wherein P is a positive integer.
The shipborne monitoring subsystem can provide power station capacity, rated voltage, user information and the like of the ship power station. Each shipborne monitoring subsystem mainly comprises a monitoring sensor, a data acquisition system, a data communication module and the like. Each monitoring sensor of each shipborne monitoring subsystem mainly collects cable receiving and discharging signals, equipotential detection and the like of a cable winch drum, and ship user information mainly comprises ship electrical loads, load types and the like. The monitoring sensors of the shipborne monitoring subsystems acquire monitoring signals of each ship end, the monitoring signals are converted into digital signals through the AD analog-to-digital converter and provided for the data acquisition system, the data acquisition system transmits the digital signals to a ship shore power system upper computer (such as a ship cabin upper computer) through a data communication module (RS485 serial port communication module), and the ship cabin upper computer transmits the monitoring sensor acquisition information and the ship user information of each shipborne monitoring subsystem to a harbor navigation centralized control center B through a 5G communication network F2.
In some embodiments, in step S120, according to a power supply parameter of each shore power supply substation in the shore power supply system and a power consumption parameter of the shore power receiving system, matching a corresponding shore power supply substation for the shore power receiving system from more than one shore power supply substations of the shore power supply system, and recording as a matched shore power supply substation; and, under the condition that the boats and ships that bank electricity power receiving system belongs to berth, control match bank electricity power supply substation, for the power supply of boats and ships that bank electricity power receiving system belongs to includes: and allocating the shore power supply substation and the shore power receiving system.
The following further describes, with reference to a schematic flow chart of an embodiment of allocating the shore power supply substation and the shore power receiving system in the method of the present invention shown in fig. 3, a specific process of allocating the shore power supply substation and the shore power receiving system, including: step S210 and step S220.
Step S210, receiving power supply parameters of each shore power supply substation in the shore power supply system and power consumption parameters of the shore power receiving system, matching corresponding shore power supply substations for the shore power receiving system from more than one shore power supply substation of the shore power supply system according to the power supply parameters of each shore power supply substation in the shore power supply system and the power consumption parameters of the shore power receiving system, and recording as matched shore power supply substations; and (c) a second step of,
step S220, a control instruction is returned to the matching shore power supply substation and the shore power receiving system, so that the matching shore power supply substation is controlled to supply power to the ship where the shore power receiving system is located under the condition that the ship where the shore power receiving system is located is in shore.
Specifically, each port shore power supply substation monitoring subsystem mainly collects and monitors operation state parameters in the power supply process of main equipment of the port shore power system, and performs data communication with the port and navigation centralized control center B in real time to ensure data transmission and control of the port and navigation centralized control center B on each power supply substation. And the shipborne monitoring subsystem is mainly used for collecting and monitoring the running state parameters of main equipment of the ship power receiving system and transmitting the equipment information and the ship user information to the port and navigation centralized control center B in real time. And the port and navigation centralized control center B is mainly used for summarizing data transmitted by each port shore power supply substation monitoring subsystem and the shipborne monitoring subsystem, dispatching and distributing shore power supply substations and harbors using shore power ships and transmitting control instructions back to the port shore power supply substations and the harbors.
The processing that gathers that port and navigation centralized control center B carries out each harbour bank electricity power supply substation monitoring subsystem and the data of on-board monitoring subsystem transmission, and safety monitoring process is connected to the ship bank promptly, mainly includes: the port and navigation centralized control center B CAN collect and gather rated voltage of the shore power supply substations provided by the shore power supply substation monitoring subsystems of the ports, working state and power station capacity of each power supply substation and power station capacity of the ship power stations provided by the ship-borne monitoring subsystems through the CAN buses F1 and the 5G communication network F2 respectively, match information provided by the two monitoring subsystems, and if the rated voltage of the port and navigation centralized control center is consistent and the capacity of the shore power supply substations CAN meet requirements of the ship power stations, and the shore power supply substations are in an idle state, matching of port-approaching ships and the shore power supply substations CAN be achieved, the centralized control center sends back instructions to the ships to guide the port-approaching ships to use the appropriate shore power supply substations.
In some embodiments, in step S130, a specific process of performing fault detection on the power supply device of the corresponding shore power supply substation according to the device parameter of each shore power supply substation in the shore power supply system is described in the following exemplary description.
With reference to the schematic flow chart of an embodiment of performing fault detection on the power supply equipment of the corresponding shore power supply substation in the method of the present invention shown in fig. 4, a specific process of performing fault detection on the power supply equipment of the corresponding shore power supply substation in step S130 is further described, which includes: step S310 to step S350.
Step S310, determining whether the equipment parameters of the power supply equipment of the corresponding shore power supply substation are within a set first parameter range, if not, determining that the power supply equipment of the corresponding shore power supply substation is in fault, and initiating a first warning message that the power supply equipment of the corresponding shore power supply substation is in fault.
Step S320, storing the device parameters of the power supply device of the corresponding shore power supply substation and/or the power supply device of the corresponding shore power supply substation in a fault condition, so as to obtain first storage data.
Step S330, analyzing faults occurring in the power supply equipment of the corresponding shore power supply substation by using a pre-trained first fault diagnosis model based on the first stored data to obtain a first analysis result, and feeding the first analysis result back to the cloud server D.
Step S340, storing the first analysis result.
And step S350, accessing the first analysis result, and processing the fault of the power supply equipment of the corresponding shore power supply substation according to the first analysis result.
Accordingly, with reference to the flowchart of fig. 5, which shows an embodiment of performing fault detection on the power consumption device of the shore power receiving system in the method of the present invention, a specific process of performing fault detection on the power consumption device of the shore power receiving system according to the device parameter of the shore power receiving system in step S130 is further described, which includes: step S410 to step S450.
Step S410, determining whether the equipment parameters of the shore power receiving system are within a set second parameter range, if not, determining that the equipment parameters of the shore power receiving system are in fault, and initiating a second reminding message that the equipment parameters of the shore power receiving system are in fault.
Step S420, storing the device parameter of the shore power receiving system and/or the condition of the device parameter of the shore power receiving system, to obtain second storage data.
Step S430, analyzing the fault occurring in the equipment parameter of the shore power receiving system by using a pre-trained second fault diagnosis model based on the second storage data to obtain a second analysis result, and feeding back the first analysis result to the cloud server D.
And step S440, storing the second analysis result.
And step S450, accessing the second analysis result, and processing the fault of the equipment parameter of the shore power receiving system according to the second analysis result.
In the example shown in fig. 6, the port shore power supply system is connected to the ship shore power receiving system. And the port shore power supply system and the ship shore power receiving system are also respectively connected with the ship shore state monitoring and remote fault diagnosis system.
Wherein, ship bank state monitoring and remote fault diagnosis system includes: the system comprises a port shore power supply substation monitoring subsystem, a shipborne monitoring subsystem, a port navigation centralized control center, a cloud server and a remote auxiliary diagnosis center. The remote auxiliary diagnosis center, the cloud server and the port and navigation centralized control center are sequentially connected. And the port and navigation centralized control center is also respectively connected with a port shore power supply substation monitoring subsystem and a shipborne monitoring subsystem. And the port shore power supply substation monitoring subsystem is also connected with the port shore power supply system. And the shipborne monitoring subsystem is also connected with a ship shore power receiving system.
Fig. 8 is a schematic structural diagram of an embodiment of a state monitoring and remote fault diagnosis system of a marine shore power system. As shown in fig. 8, the state monitoring and remote fault diagnosis system of the ship shore power system mainly comprises monitoring subsystems of each port shore power supply substation, each ship-mounted monitoring subsystem, a port and navigation centralized control center B, a distributed remote auxiliary diagnosis center and a cloud server D. And each port shore power supply substation monitoring subsystem is connected with a port navigation centralized control center B through a CAN bus F1. And the port and navigation centralized control center B is connected with each shipborne monitoring subsystem through a 5G communication network F2. And the cloud server D is connected with the port and aviation centralized control center B through a 5G communication network F2 or a broadband network F3. The cloud server D is also connected with the distributed remote auxiliary diagnosis center through a 5G communication network F2 or a broadband network F3. The state monitoring and remote fault diagnosis system designed by the scheme of the invention orderly connects the port-berthing ship, the shore power supply substation, the port and navigation centralized control center and all distributed resources together through wired and wireless communication technologies, realizes the real-time transmission of the state information of the shore power system, the full and effective excavation of data and the reasonable utilization of multi-part distributed resources, and ensures the orderly, reasonable, safe and reliable operation of the shore power system.
In the state monitoring and remote fault diagnosis system of the ship shore power system shown in fig. 8, a port and navigation centralized control center B is mainly composed of an industrial control computer, a database server, an alarm indicating device and the like.
The industrial control computer of the port and navigation centralized control center B receives data information transmitted by each port shore power supply substation monitoring subsystem through a CAN bus F1 and information transmitted by each shipborne monitoring subsystem through a 5G communication network F2, stores the data information in a database server, is convenient for historical data query and analysis, and displays the abnormal monitoring alarm signals of each port shore power supply substation monitoring subsystem and each shipborne monitoring subsystem through an alarm indicating device.
An industrial control computer of the port and navigation centralized control center B analyzes and processes the electricity utilization information (such as average electricity utilization amount per hour, power factor mean value, electricity load and the like) of ship users, analyzes the state of the current shore power supply substation to determine the working state, power supply parameters and the like of the current shore power supply substation, matches the most appropriate shore power supply substation for the port-in ship, and sends instruction information to the ship through a 5G communication network F2. In addition, the port and navigation centralized control center B uploads the data stored in the database server to the cloud server D through the 5G communication network F2 or the broadband network F3.
Specifically, the port and navigation centralized control center B can process data information of the shore power supply substation, alarm the abnormal state of the equipment, and transmit data to the cloud server D. The distributed remote auxiliary diagnosis center can be arranged in a related college or scientific research institute, and mainly utilizes a big data processing technology and an artificial intelligence algorithm to analyze state monitoring data of a port shore power system and power utilization data of ship users, so that more accurate fault positioning, fault diagnosis and analysis and trend prediction of power utilization information are realized, and results are fed back to the cloud server D for the port and navigation centralized control center B to access. And the cloud server D is mainly used for storing, calculating and sharing data in the state monitoring and remote fault diagnosis system.
When the shore power supply substation is in a working state, namely the shore power supply substation supplies power to the harbor ship, the harbor navigation centralized control center B can also collect state monitoring information of main equipment of the power supply substation provided by each power supply substation monitoring subsystem of the shore power, such as: the on-off state, current and voltage of the high/low voltage incoming line switch cabinet 2, the temperature of the transformation module 31 of the transformation frequency conversion device 3 and the like are compared with the normal threshold of each signal through monitoring information, if the monitoring information exceeds the normal threshold, the abnormal state of the power supply substation is found in time, and the health state of the power supply substation is monitored.
In the state monitoring and remote fault diagnosis system of the ship shore power system shown in fig. 8, the distributed remote auxiliary diagnosis center includes: the M remote auxiliary diagnosis centers, such as a first remote auxiliary diagnosis center E1, a second remote auxiliary diagnosis center E2 and a pth remote auxiliary diagnosis center EM. In the state monitoring and remote fault diagnosis system of the ship shore power system shown in fig. 8, each remote auxiliary diagnosis center of the distributed remote auxiliary diagnosis centers mainly includes a computer, a database server, an information display large screen, and the like.
The distributed remote auxiliary diagnosis center accesses data resources in the cloud server D from a computer terminal through a 5G communication network F2 or a broadband network F3, utilizes the computing capacity of the cloud server D, carries out fault location and fault diagnosis on a ship shore power system based on big data analysis and an intelligent algorithm, carries out mining and trend prediction on power utilization information of a port-berthing ship, feeds results back to the cloud server D through a 5G communication network F2 or a broadband network F3, and a port navigation centralized control center B can acquire auxiliary diagnosis results provided by the distributed remote auxiliary diagnosis center through accessing the cloud server D and is used for management and deployment of the whole ship shore power system. In addition, the database server is used for storing auxiliary diagnosis results, and the information display screen is used for displaying the auxiliary diagnosis results.
Here, in the implementation process of fault location, fault diagnosis, analysis of power consumption information, and trend prediction, different implementation manners may be adopted for specific application scenarios, and the following exemplary description is given.
And fault positioning, namely positioning faults of the shore power system by comparing and analyzing monitoring data acquired by monitoring subsystems of shore power supply substations of various ports and combining a logic topological graph and the like of the system. For example: in the short-circuit fault location of the shore power system, firstly, the logic topological relation of the shore power system is determined, namely, the position relation between each monitoring point is determined, when the current mutation at a certain position is found in a monitoring signal and exceeds a certain amplitude value and is reduced to zero after a period of time, the principle of the short-circuit fault is comprehensively considered, and the short-circuit fault at the position is judged.
And fault diagnosis, namely comprehensively utilizing expert experience knowledge and accumulated historical data and adopting a confidence rule reasoning method to carry out fault diagnosis on main components in the shore power system. Taking the fault diagnosis of the inverter, which is an important component in the frequency conversion module 32, as an example, the fault modes, such as a single-tube fault in an IGBT open-circuit fault, a simultaneous fault of two power tubes of the same bridge arm, and a simultaneous fault of two power tubes of the same half-bridge cross, are used as the output of the diagnosis model, and the features extracted from the acquired current signal, such as the mean value and standard deviation of the upper and lower boundary deviations of the signal, are used as the input of the diagnosis model. Firstly, a confidence rule base for fault diagnosis is constructed on the basis of expert experience and statistical analysis of historical fault data of the inverter, each confidence rule comprises two parts, namely a rule front part (namely a combination of fault diagnosis characteristics) and a rule back part (namely a fault mode to be diagnosed), and each confidence rule represents the occurring confidence level of each fault mode in the form of confidence level. And then calculating the activation weight of each confidence rule in the confidence library according to the fault characteristic value of the sample to be diagnosed, wherein the larger the activation weight is, the larger the effect of the rule on generating a final diagnosis result is. And finally, performing fusion calculation on the activated multiple confidence rules by adopting an evidence theory to obtain the confidence level distribution of each fault mode corresponding to the sample to be diagnosed, and taking the fault mode with the maximum confidence level as the optimal fault mode which possibly occurs.
In the state monitoring and remote fault diagnosis system of the ship shore power system shown in fig. 8, the cloud server D is a virtual machine. The virtual machine comprises components such as a CPU, a memory, a disk, a network and an operating system, and different IO, computing, storage and network capabilities are provided by differently configuring the CPU, the memory, the IO (input/output), the network and the like. And the port and aviation centralized control center B and the remote auxiliary diagnosis center are based on a computer, and perform remote transmission, access, calculation and analysis on data in the cloud server D through the Internet.
In the virtual machine, the different configurations of the CPU, the memory, the IO, the network, and the like may refer to: the cloud server D usually adopts a renting mode, and in the cloud servers D provided by a service provider, the hardware models and specifications of different series of cloud servers D are usually different, that is, the cloud servers D include CPUs, memories, IO, networks and the like. Different configurations provide different CPUs, memories, IO, networks. The configuration and selection of the relevant components should be made according to the specific application scenario. For example, in the application scenario, the optional configuration mode of the computing cloud server mainly based on data analysis and computing is as follows: the configuration of the CPU with 28 cores, the memory with 224GB, the network with 10G, the SSD cloud disk or the SSD local disk can be adjusted according to specific conditions.
Here, the port and aviation centralized control center B and the remote auxiliary diagnosis center perform remote transmission, access and computational analysis on data in the cloud server D through the internet based on a computer, and may refer to: the port and aviation centralized control center B and the remote auxiliary diagnosis center can transmit data to a database of the cloud server D through a broadband network for storage, and access is performed, namely, application programs of the port and aviation centralized control center B and the remote auxiliary diagnosis center can read data from the database of the cloud server D and return the data to the application program for processing. The remote auxiliary diagnosis center accesses data in the cloud server D, analyzes and processes the data by using an intelligent algorithm, realizes fault isolation, fault diagnosis, trend prediction of power utilization information and the like, and feeds back a calculation result to another database of the cloud server D. The port and aviation centralized control center B reads the data calculation result in the database, so that the health state and the power utilization rule of each device of the shore power supply substation can be better mastered by means of external distributed resources, and a port and aviation manager can make a more reasonable decision. Further, the cloud server D analyzes and processes state monitoring data of each power supply substation for port shore power, power consumption data of a port ship, and the like based on an intelligent algorithm, and performs fault isolation, diagnosis, trend prediction of power consumption information, and the like.
In the scheme of the invention, the ship shore state monitoring and remote fault diagnosis system is mainly used for monitoring the running state parameters of each shore power supply substation of a port in real time and effectively distributing the power load of each power supply channel aiming at a port shore power supply system. Meanwhile, aiming at the ship shore power receiving system, fault positioning and fault diagnosis are carried out on hardware faults and the like of different equipment in the ship shore power system, so that the safety and the reliability of the shore power supply system are ensured.
In some embodiments, in step S210, matching, according to the power supply parameter of each of the shore power supply substations in the shore power supply system and the power consumption parameter of the shore power receiving system, a corresponding shore power supply substation from among more than one shore power supply substations of the shore power supply system for the shore power receiving system includes: and according to the corresponding relation between the set power supply parameters and the set power utilization parameters, determining the set power supply parameters corresponding to the set power utilization parameters which are the same as the power utilization parameters of the shore power supply system in the corresponding relation as the matched power supply parameters corresponding to the power utilization parameters of the shore power supply system. And determining the shore power supply substation corresponding to the power supply parameters which are the same as the matched power supply parameters in the shore power supply system as the shore power supply substation matched with the shore power receiving system.
Specifically, the analysis of the electricity utilization information mainly comprises mining data by using an intelligent algorithm based on the electricity utilization information of the harbor ships, and realizing clustering of electricity utilization behaviors of the harbor ships and correlation analysis of factors such as surrounding weather. For example, statistical analysis is performed on the electricity data of the port berthing ship, peak load rate, valley load rate, average load rate, all-day load rate, peak-valley difference rate, daily electricity consumption load, daily average load, daily maximum load, daily minimum load, and the like are extracted from the electricity data, and the electricity consumption behaviors of the port berthing ship are clustered by adopting a k-means clustering method, such as: the whole power utilization level is higher, and the peak of power utilization concentrates noon peak and evening peak. The whole power utilization level is medium, and a relatively obvious late peak exists in the power utilization. The whole power utilization level is low, and a more obvious noon peak exists in the power utilization. According to the clustering result, the port and navigation centralized control center can reasonably plan and schedule the port and shore power supply substation resources according to the power utilization information of the port-berthing ship. The specific k-means clustering method comprises the following steps: properly and randomly selecting initial centers of k classes, calculating Euclidean distances from each sample to the k centers in sample iteration of the electricity utilization behavior characteristics of the harbor ships, classifying the samples into the class with the center with the shortest distance, updating the center values of the k classes by using a mean value method, repeating the calculation steps, and finishing clustering when the moving distance of the center value of the class meets a certain condition (artificially setting a threshold).
The power utilization trend prediction is mainly based on port power load data, and an intelligent algorithm is adopted to predict data in a short term (daily power load-weekly power load), a medium term (seasonal power load) and a long term (annual power load), so that the normal operation of a power system is ensured, the rapid response of the power system to the load is ensured, and the planned control of the load is realized. For example: and predicting the daily power load by adopting an autoregressive moving average, and taking the port power load data of the previous seven days as the input of a prediction model for predicting the power load of 1-2 days in the future. The specific autoregressive moving average method comprises the following steps: calculating an autocorrelation coefficient and a partial autocorrelation coefficient of the port power load data of the previous seven days, determining the values of p and q in a model in an autoregressive moving average model (ARMA (p, q)) by using an AIC criterion order-fixing method according to the characteristics of the autocorrelation coefficient and the partial autocorrelation coefficient, estimating unknown parameters in the ARMA (p, q) model by using a minimum forming estimation method based on the port power load data of the previous seven days, checking the validity of the model, and if the model does not pass the checking, predicting the future power load by using the established ARMA (p, q) model after the model passes the checking.
According to the scheme, the system for monitoring the state of the shore power system of the ship is designed aiming at the unique structure of the shore power system of the ship, the effective comprehensive utilization of distributed resources is realized, the rapid positioning and diagnosis of faults are facilitated, the safety and the reliability of the shore power system are improved, the requirement of using the shore power for the port ship can be met, the system adapts to the trend of large-scale development of the ship, and the intelligent level is high.
Since the processing and functions implemented by the method of this embodiment substantially correspond to the embodiments, principles, and examples of the ship shore power system, reference may be made to the related descriptions in the foregoing embodiments without being given in detail in the description of this embodiment, which is not described herein again.
By adopting the technical scheme of the embodiment, the ship shore state monitoring and remote fault diagnosis system is arranged by aiming at each port shore power supply system and each ship shore power receiving system, the power supply condition of each port shore power supply system and the power demand condition of each ship shore power receiving system can be combined, the proper port shore power supply system is allocated for the corresponding ship shore power receiving system, the power supply of the corresponding ship shore power receiving system by utilizing the port shore power supply system is realized, the fault conditions of the port shore power supply system and each ship shore power receiving system can be monitored, and the reliability and the safety of the ship shore power system can be improved.
In summary, it is readily understood by those skilled in the art that the advantageous modes described above can be freely combined and superimposed without conflict.
The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. A control device of a ship shore power system, characterized by comprising: a shore power supply system and a shore power receiving system; the shore power supply system comprises: more than one shore power supply substation;
the control device of the ship shore power system comprises: a monitoring system and a control system; wherein,
the monitoring system is configured to monitor power supply parameters and/or equipment parameters of each shore power supply substation in more than one shore power supply substation and monitor power utilization parameters and/or equipment parameters of the shore power receiving system;
the control system is configured to match corresponding shore power supply substations for the shore power receiving system from more than one shore power supply substations of the shore power supply system according to the power supply parameters of each shore power supply substation in the shore power supply system and the power consumption parameters of the shore power receiving system, and record the matched shore power supply substations; and under the condition that the ship where the shore power receiving system is located is in shore, controlling the matched shore power supply substation to supply power to the ship where the shore power receiving system is located; and/or the presence of a gas in the atmosphere,
the control system is further configured to perform fault detection on the power supply equipment of the corresponding shore power supply substation according to the equipment parameters of each shore power supply substation in the shore power supply system; and/or carrying out fault detection on the power utilization equipment of the shore power receiving system according to the equipment parameters of the shore power receiving system.
2. The control device for a marine shore power system according to claim 1, wherein said monitoring system comprises: the system comprises a port shore power supply substation monitoring subsystem and a shipborne monitoring subsystem;
wherein, monitoring system, every in more than one bank electricity power supply substation power supply parameter and/or equipment parameter of bank electricity power supply substation, and monitor bank electricity powered system's power consumption parameter and/or equipment parameter, include:
the port shore power supply substation monitoring subsystems are more than one in number, and one port shore power supply substation monitoring subsystem is configured to monitor power supply parameters and/or equipment parameters of a corresponding shore power supply substation in more than one shore power supply substation; the power supply parameters of the shore power supply substation comprise: the working state of the shore power supply substation; the power supply parameter of bank electricity power supply substation still includes: at least one of rated voltage and plant capacity; the equipment parameters of the shore power supply substation comprise: the on-off state of the power supply equipment of the shore power supply substation; the equipment parameter of bank electricity power supply substation still includes: at least one of voltage, current, power;
the number of the ship-borne monitoring subsystems is more than one, and one ship-borne monitoring subsystem is configured to monitor power utilization parameters and/or equipment parameters of one shore power receiving system; the power consumption parameter of the shore power receiving system comprises: an identification signal of the shore power powered system; the power consumption parameter of shore power receiving system still includes: at least one of a plant capacity, a rated voltage; the equipment parameters of the shore power receiving system comprise: the on-off state of the electrical equipment of the shore power receiving system; the equipment parameters of the shore power receiving system further comprise: at least one of a voltage, a current, and a temperature of a power-consuming device of the shore power receiving system.
3. The control device for a marine shore power system according to claim 1 or 2, characterized in that said control system comprises: the system comprises a port and aviation centralized control center (B), a cloud server (D) and a remote auxiliary diagnosis center;
wherein,
the control unit is used for matching the shore power supply substation for the shore power receiving system from more than one shore power supply substation of the shore power supply system according to the power supply parameters of each shore power supply substation in the shore power supply system and the power consumption parameters of the shore power receiving system and recording as matched shore power supply substations; and, under the condition that the boats and ships that bank electricity power receiving system belongs to berth, control match bank electricity power supply substation, for the power supply of boats and ships that bank electricity power receiving system belongs to includes:
the port and navigation centralized control center (B) is configured to receive power supply parameters of each shore power supply substation in the shore power supply system and power consumption parameters of the shore power receiving system, and according to the power supply parameters of each shore power supply substation in the shore power supply system and the power consumption parameters of the shore power receiving system, corresponding shore power supply substations are matched for the shore power receiving system from more than one shore power supply substations of the shore power supply system and are marked as matched shore power supply substations; and the number of the first and second groups,
and the matched shore power supply substation transmits a control instruction back to the shore power receiving system, so that under the condition that the ship where the shore power receiving system is located is in shore, the matched shore power supply substation is controlled, and the shore power receiving system is powered by the ship where the shore power receiving system is located.
4. The control device for a marine shore power system according to claim 3, wherein said control system further comprises: a cloud server (D) and a remote auxiliary diagnosis center;
wherein,
the control system carries out fault detection on power supply equipment of the corresponding shore power supply substation according to the equipment parameters of each shore power supply substation in the shore power supply system, and the fault detection comprises the following steps:
the port and navigation centralized control center (B) is also configured to determine whether equipment parameters of power supply equipment of the corresponding shore power supply substation are within a set first parameter range, and if not, determine that the power supply equipment of the corresponding shore power supply substation fails and initiate a first warning message that the power supply equipment of the corresponding shore power supply substation fails;
the cloud server (D) is configured to store equipment parameters of the power supply equipment of the corresponding shore power supply substation and/or a fault condition of the power supply equipment of the corresponding shore power supply substation to obtain first storage data;
the remote auxiliary diagnosis center is configured to analyze faults occurring on power supply equipment of the corresponding shore power supply substation by utilizing a pre-trained first fault diagnosis model based on the first stored data to obtain a first analysis result;
the cloud server (D) further configured to store the first analysis result;
the port and navigation centralized control center (B) is also configured to access the first analysis result and process the fault of the power supply equipment of the corresponding shore power supply substation according to the first analysis result;
the control system carries out fault detection to the power consumption equipment of shore power receiving system according to the equipment parameter of shore power receiving system, includes:
the port and navigation centralized control center (B) is also configured to determine whether equipment parameters of the shore power receiving system are within a set second parameter range, and if not, determine that the equipment parameters of the shore power receiving system are in fault and initiate a second reminding message of the equipment parameters of the shore power receiving system being in fault;
the cloud server (D) is configured to store equipment parameters of the shore power receiving system and/or conditions of the equipment parameters of the shore power receiving system to obtain second storage data;
the remote auxiliary diagnosis center is configured to analyze the fault of the equipment parameter of the shore power powered system by using a pre-trained second fault diagnosis model based on the second stored data to obtain a second analysis result;
the cloud server (D) further configured to store the second analysis result;
and the port and navigation centralized control center (B) is also configured to access the second analysis result and process the fault of the equipment parameter of the shore power receiving system according to the second analysis result.
5. The control device of the ship shore power system according to claim 3, wherein said port and navigation centralized control center (B) matches the shore power receiving system with a corresponding shore power supply substation from among more than one shore power supply substations of the shore power supply system according to the power supply parameters of each shore power supply substation in the shore power supply system and the power consumption parameters of the shore power receiving system, and comprises:
according to the corresponding relation between the set power supply parameters and the set power utilization parameters, determining the set power supply parameters corresponding to the set power utilization parameters which are the same as the power utilization parameters of the shore power supply system in the corresponding relation as matched power supply parameters corresponding to the power utilization parameters of the shore power supply system; and determining the shore power supply substation corresponding to the power supply parameter which is the same as the matched power supply parameter in the shore power supply system as the shore power supply substation matched with the shore power receiving system.
6. A terminal, comprising: a control apparatus for a marine shore power system according to any one of claims 1 to 5.
7. A control method of a ship shore power system, characterized in that the ship shore power system comprises: a shore power supply system and a shore power receiving system; the shore power supply system, comprising: more than one shore power supply substation;
the control method of the ship shore power system comprises the following steps:
monitoring power supply parameters and/or equipment parameters of each shore power supply substation in more than one shore power supply substations, and monitoring power utilization parameters and/or equipment parameters of a shore power receiving system;
according to the power supply parameters of each shore power supply substation in the shore power supply system and the power consumption parameters of the shore power receiving system, matching corresponding shore power supply substations for the shore power receiving system from more than one shore power supply substations of the shore power supply system, and recording as matched shore power supply substations; and under the condition that the ship where the shore power receiving system is located is in shore, controlling the matched shore power supply substation to supply power to the ship where the shore power receiving system is located; and/or the presence of a gas in the gas,
according to the equipment parameters of each shore power supply substation in the shore power supply system, carrying out fault detection on the power supply equipment of the corresponding shore power supply substation; and/or carrying out fault detection on the power utilization equipment of the shore power receiving system according to the equipment parameters of the shore power receiving system.
8. The control method for a marine shore power system according to claim 7, wherein,
the power supply parameters of the shore power supply substation comprise: the working state of the shore power supply substation; the power supply parameter of bank electricity power supply substation still includes: at least one of rated voltage and plant capacity; the equipment parameters of the shore power supply substation comprise: the on-off state of power supply equipment of the shore power supply substation; the equipment parameter of bank electricity power supply substation still includes: at least one of voltage, current, power;
and/or the presence of a gas in the gas,
the power consumption parameter of shore power receiving system includes: an identification signal of the shore power powered system; the power consumption parameter of bank electricity receiving system still includes: at least one of a plant capacity, a rated voltage; the equipment parameters of the shore power receiving system comprise: the on-off state of the electrical equipment of the shore power receiving system; the equipment parameters of the shore power receiving system further comprise: at least one of a voltage, a current, and a temperature of a power-consuming device of the shore power receiving system.
9. The control method for a marine shore power system according to claim 7 or 8,
according to the power supply parameters of each shore power supply substation in the shore power supply system and the power consumption parameters of the shore power receiving system, matching corresponding shore power supply substations for the shore power receiving system from more than one shore power supply substations of the shore power supply system, and recording as matched shore power supply substations; and under the condition that the ship where the shore power receiving system is located is in shore, controlling the matched shore power supply substation to supply power to the ship where the shore power receiving system is located, and the method comprises the following steps:
receiving power supply parameters of each shore power supply substation in the shore power supply system and power consumption parameters of the shore power receiving system, matching corresponding shore power supply substations for the shore power receiving system from more than one shore power supply substations of the shore power supply system according to the power supply parameters of each shore power supply substation in the shore power supply system and the power consumption parameters of the shore power receiving system, and recording as matched shore power supply substations; and the number of the first and second groups,
and the matched shore power supply substation transmits a control instruction back to the shore power receiving system, so that under the condition that the ship where the shore power receiving system is located is in shore, the matched shore power supply substation is controlled, and the shore power receiving system is powered by the ship where the shore power receiving system is located.
10. The control method for a marine shore power system according to claim 9,
wherein,
according to the equipment parameter of every bank electricity power supply substation in the bank electricity power supply system, carry out fault detection to the power supply equipment of corresponding bank electricity power supply substation, include:
determining whether the equipment parameters of the power supply equipment of the corresponding shore power supply substation are within a set first parameter range, if not, determining that the power supply equipment of the corresponding shore power supply substation fails, and initiating a first warning message that the power supply equipment of the corresponding shore power supply substation fails;
storing equipment parameters of power supply equipment of the corresponding shore power supply substation and/or the condition that the power supply equipment of the corresponding shore power supply substation fails to work to obtain first storage data;
analyzing faults of power supply equipment of the corresponding shore power supply substation by utilizing a pre-trained first fault diagnosis model based on the first stored data to obtain a first analysis result;
storing the first analysis result;
accessing the first analysis result, and processing the fault of the power supply equipment of the corresponding shore power supply substation according to the first analysis result;
and/or the presence of a gas in the gas,
according to the equipment parameter of shore power receiving system carries out fault detection to the consumer of shore power receiving system, include:
determining whether the equipment parameters of the shore power receiving system are within a set second parameter range, if not, determining that the equipment parameters of the shore power receiving system are in fault, and initiating a second reminding message of the equipment parameters of the shore power receiving system that the equipment parameters are in fault;
storing equipment parameters of the shore power receiving system and/or the condition of the equipment parameters of the shore power receiving system to obtain second storage data;
analyzing the fault occurring in the equipment parameter of the shore power receiving system by utilizing a pre-trained second fault diagnosis model based on the second stored data to obtain a second analysis result;
storing the second analysis result;
accessing the second analysis result, and processing the fault of the equipment parameter of the shore power receiving system according to the second analysis result;
and/or the presence of a gas in the gas,
according to in the shore power supply system every the power supply parameter of shore power supply substation and the power consumption parameter of shore power receiving system, certainly do in more than one shore power supply substation of shore power supply system the shore power receiving system matches corresponding shore power supply substation, include:
according to the corresponding relation between the set power supply parameters and the set power utilization parameters, determining the set power supply parameters corresponding to the set power utilization parameters which are the same as the power utilization parameters of the shore power supply system in the corresponding relation as the matched power supply parameters corresponding to the power utilization parameters of the shore power supply system; and determining the shore power supply substation corresponding to the power supply parameter which is the same as the matched power supply parameter in the shore power supply system as the shore power supply substation matched with the shore power receiving system.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116977435A (en) * | 2023-09-15 | 2023-10-31 | 广州志正电气有限公司 | Shore power system for automatic identification of ship on shore |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116977435A (en) * | 2023-09-15 | 2023-10-31 | 广州志正电气有限公司 | Shore power system for automatic identification of ship on shore |
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