CN111668931A - Power distribution operation and maintenance system and power distribution operation and maintenance method - Google Patents

Power distribution operation and maintenance system and power distribution operation and maintenance method Download PDF

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Publication number
CN111668931A
CN111668931A CN202010522354.8A CN202010522354A CN111668931A CN 111668931 A CN111668931 A CN 111668931A CN 202010522354 A CN202010522354 A CN 202010522354A CN 111668931 A CN111668931 A CN 111668931A
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CN
China
Prior art keywords
power distribution
module
detection terminal
distribution network
control
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Pending
Application number
CN202010522354.8A
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Chinese (zh)
Inventor
庄清涛
李小强
陈学龙
张娟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Power Grid Co Ltd
Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd
Original Assignee
Guangdong Power Grid Co Ltd
Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Guangdong Power Grid Co Ltd, Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd filed Critical Guangdong Power Grid Co Ltd
Priority to CN202010522354.8A priority Critical patent/CN111668931A/en
Publication of CN111668931A publication Critical patent/CN111668931A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00Circuit 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
    • H02J13/00006Circuit 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
    • H02J13/00022Circuit 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00Circuit 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
    • H02J13/00006Circuit 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
    • H02J13/00022Circuit 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
    • H02J13/00026Circuit 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 involving a local wireless network, e.g. Wi-Fi, ZigBee or Bluetooth
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00Circuit 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
    • H02J13/00032Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00036Systems 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
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/126Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

The embodiment of the invention discloses a power distribution operation and maintenance system and a power distribution operation and maintenance method. The power distribution operation and maintenance system comprises at least one detection terminal, relay equipment and a control host; the relay equipment is respectively in communication connection with at least one detection terminal and the control host; the system comprises at least one detection terminal, a relay device and a power distribution network, wherein the at least one detection terminal is connected with the power distribution devices in the power distribution network in a one-to-one correspondence mode, and is used for acquiring operation information of the power distribution network through the power distribution devices and outputting the operation information to the relay device; the relay equipment is used for outputting the operation information to the control host; receiving a control signal of a control host, and outputting the control signal to a target detection terminal; the control host is used for generating fault diagnosis information according to the operation information, determining a target power distribution network segment with a fault, and outputting a control signal to the relay equipment, wherein the control signal is used for indicating the target detection terminal to control the on-off of a switching device of the target power distribution network segment. Not only the operation and maintenance efficiency is improved, but also the safety of the working personnel is improved.

Description

Power distribution operation and maintenance system and power distribution operation and maintenance method
Technical Field
The embodiment of the invention relates to the technical field of power equipment, in particular to a power distribution operation and maintenance system and a power distribution operation and maintenance method.
Background
Distribution automation systems are developing rapidly, distribution equipment is the most important part of power systems, and whether the distribution equipment operates normally determines whether a distribution network can supply power safely and reliably. Currently, distribution equipment in operation is increasing, wherein a feeder automation terminal (FTU) is an important part of an urban distribution automation system as the distribution equipment.
Generally speaking, FTU installs on apart from the wire pole of ground take the altitude, for the safety and stability operation of guarantee distribution automation system, fortune dimension personnel need regularly to overhaul maintenance to this equipment to can in time discover hidden danger and unusual, reduce the emergence of trouble.
Local maintenance of the existing feed-forward line automation equipment is mostly realized by adopting a notebook computer and a special maintenance cable equipped by a manufacturer. Feeder automation equipment is usually installed on the wire pole, and this just requires to go to the post earlier to the maintainer when each time each FTU equipment overhauls and maintains, and operation computer maintenance software on the post, and the operation is very inconvenient, also has that working strength is big, work efficiency is low, can not satisfy daily work needs, and cause the threat scheduling problem to maintainer life safety simultaneously.
Disclosure of Invention
The embodiment of the invention provides a power distribution operation and maintenance system and a power distribution operation and maintenance method, which aim to improve the detection efficiency of power distribution equipment.
In a first aspect, an embodiment of the present invention provides a power distribution operation and maintenance system, including at least one detection terminal, a relay device, and a control host; the relay equipment is respectively in communication connection with at least one detection terminal and the control host;
the at least one detection terminal is connected with power distribution equipment in a power distribution network in a one-to-one correspondence mode, and is used for acquiring operation information of the power distribution network through the power distribution equipment and outputting the operation information to the relay equipment;
the relay equipment is used for outputting the operation information to the control host; receiving a control signal of the control host, and outputting the control signal to a target detection terminal;
the control host is used for generating fault diagnosis information according to the operation information, determining a target power distribution network segment with a fault, and outputting a control signal to the relay equipment, wherein the control signal is used for indicating the target detection terminal to control the on-off of a switch device of the target power distribution network segment.
Optionally, the detection terminal includes a first processing module and a first communication module; the relay equipment comprises a second processing module and a second communication module;
the first processing module is connected with the first communication module; the second processing module is connected with the second communication module;
the first communication module is connected with the second communication module to realize the communication connection between the detection terminal and the relay device.
Optionally, the detection terminal further includes a temperature and humidity detection module, and the temperature and humidity detection module is connected to the first processing module;
the temperature and humidity detection module is used for detecting the ambient temperature and the ambient humidity of the power distribution equipment.
Optionally, the detection terminal further includes an alarm module, and the alarm module is connected to the first processing module;
the alarm module is used for responding to the alarm trigger signal output by the first processing module to alarm.
Optionally, the power distribution device includes a power detection module, an input amount acquisition module, and an output amount control module; the first processing module is respectively connected with the power supply detection module, the input quantity acquisition module and the output quantity control module;
the detection terminal acquires a voltage signal and a current signal of the power distribution network through the power supply detection module;
the detection terminal also acquires the state information of the power distribution network and the state information of a switching device in the power distribution network through the input amount acquisition module;
the detection terminal outputs the control signal to the output quantity control module so as to control the on-off of the corresponding switch device through the output quantity control module.
Optionally, the first communication module and the second wireless communication module are at least one of a bluetooth module, a GPRS module, a WIFI module, an RF module, a ZigBee module, a 4G communication module, and a 5G communication module.
Optionally, the detection terminal further comprises a power supply module, and the power supply module is connected with a solar cell panel to charge through the solar cell panel.
In a second aspect, an embodiment of the present invention further provides a power distribution operation and maintenance method, which is applied to the power distribution operation and maintenance system according to any embodiment of the present invention, where the method includes:
at least one detection terminal collects the operation information of the power distribution network through correspondingly connected power distribution equipment;
the relay equipment acquires the operation information and outputs the operation information to the control host;
the control host generates fault diagnosis information according to the operation information, determines a target power distribution network segment with a fault, and outputs a control signal to the relay equipment;
and the relay equipment outputs the control signal to a target detection terminal so as to indicate the target detection terminal to carry out on-off control on a switch device of the target power distribution network segment.
Optionally, before the at least one detection terminal collects the operation information of the power distribution network through the power distribution device connected correspondingly, the method further includes:
and the relay equipment is in pairing connection with at least one detection terminal so as to establish communication connection between the relay equipment and the at least one detection terminal.
Optionally, the operation information at least includes a current signal and a voltage signal of the power distribution network, and the state data of the power distribution network recorded by the power distribution equipment.
The distribution network operation and maintenance system provided by this embodiment carries out one-to-one correspondence with distribution equipment through setting up detection terminal and is connected for distribution network operation and maintenance system can acquire all operation information of distribution network. Through the arrangement of the relay device and the control host, the relay device is respectively communicated with the detection terminal and the control host, so that the control host can acquire the operation information of the power distribution network through the relay device, and further can perform fault diagnosis and maintenance on the power distribution network through the acquired operation information. When the control host machine diagnoses that the power distribution network has faults, the control host machine further positions a target power distribution network segment and generates a control signal aiming at the target power distribution network segment, the control host machine outputs the corresponding control signal to a target detection terminal through relay equipment, and the target detection terminal controls the on-off of a switch device of the target power distribution network segment through the target power distribution equipment, so that the maintenance control of the power distribution network is realized. According to the embodiment of the invention, the detection terminal and the relay equipment are arranged, and the relay equipment acquires the relevant information of the power distribution equipment in a wireless mode, so that operation and maintenance personnel do not need to climb to the telegraph pole to connect the power distribution equipment during each operation and maintenance, the operation and maintenance efficiency is improved, and the safety of the working personnel is improved. And by arranging the relay equipment and the control host, the remote diagnosis of the power distribution network is realized, the workload of field maintainers is reduced, and the diagnosis efficiency and the diagnosis accuracy of the power distribution network are improved.
Drawings
Fig. 1 is a block diagram of a power distribution operation and maintenance system according to an embodiment of the present invention;
fig. 2 is a block diagram of another power distribution operation and maintenance system according to an embodiment of the present invention;
fig. 3 is a block diagram of another power distribution operation and maintenance system according to an embodiment of the present invention;
fig. 4 is a flowchart of a power distribution operation and maintenance method according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a block diagram of a power distribution operation and maintenance system according to an embodiment of the present invention, where the power distribution operation and maintenance system is applicable to maintenance and repair of a power distribution network. For example, the method can be suitable for maintenance personnel to carry out daily inspection on the power distribution network and maintain the normal operation condition of the power distribution network. Referring to fig. 1, the power distribution operation and maintenance system 20 includes:
comprises at least one detection terminal 210, a relay device 220 and a control host 230; the relay device 220 is respectively in communication connection with at least one detection terminal 210 and the control host 230;
the at least one detection terminal 210 is connected with the power distribution equipment 10 in the power distribution network in a one-to-one correspondence manner, and the at least one detection terminal 210 is used for acquiring the operation information of the power distribution network through the power distribution equipment 10 and outputting the operation information to the relay equipment 220;
the relay device 220 is configured to output the operation information to the control host 230; receiving a control signal of the control host 230 and outputting the control signal to the target detection terminal 210;
the control host 230 is configured to generate fault diagnosis information according to the operation information, determine a target power distribution network segment with a fault, and output a control signal to the relay device 220, where the control signal is used to instruct the target detection terminal 210 to perform on-off control on a switch device of the target power distribution network segment.
Specifically, the detection terminal 210 may be assembled in advance, and for example, the detection terminal 210 may be assembled together at the same time as the power distribution apparatus 10 is installed. Generally, the number of the power distribution devices 10 configured in the power distribution network is multiple, and each power distribution device 10 correspondingly detects one power distribution network segment, so as to implement segmented maintenance on the power distribution network.
In this embodiment, each power distribution device 10 is correspondingly connected with one detection terminal 210, and each detection terminal 210 correspondingly collects data of the connected power distribution device 10 and controls the connected power distribution device 10 to collect operation information of a corresponding power distribution network segment, so that operation information of all power distribution networks is collected, and all power distribution networks can be diagnosed.
The relay device 220 is communicatively connected to the detection terminal 210 and the control host 230, respectively, for forwarding data and/or signals between the detection terminal 210 and the control host 230. In this embodiment, the relay device 220 is specifically connected to the detection terminal 210 through wireless communication.
The control host 230 may be disposed in a monitoring center, for example, a monitoring center of a substation. The control host 230 may be in communication connection with the relay device 220 by wire or wirelessly. The control host 230 in this embodiment performs data interaction with the detection terminal 210 through the relay device 220, thereby implementing remote diagnosis of the power distribution network.
Alternatively, the power distribution apparatus 10 in the present embodiment may be a feeder automation terminal (FTU). Since the FTUs themselves record the operating state of the power distribution network, the detection terminal 210 in this embodiment may obtain the state information of the power distribution network stored by each FTU when obtaining the operating information of the power distribution network.
Optionally, the operation information of the power distribution network collected by the detection terminal 210 carries address information of each power distribution device 10, so that the control host 230 associates the operation information of the power distribution network fed back by each detection terminal 210 with the address information of the corresponding detection terminal 210, and can determine a target power distribution network segment with a fault. Optionally, each power distribution device 10 may feed back the operation information of the corresponding power distribution network segment to the connected detection terminal 210 according to the preset format, and the control host 230 obtains the data of the corresponding item in the preset format, so as to obtain the address information of the power distribution device 10 and the operation information of the corresponding power distribution network segment.
The power distribution network operation and maintenance system provided in this embodiment performs one-to-one corresponding connection with the power distribution equipment 10 by setting the detection terminal 210, so that the power distribution network operation and maintenance system 20 can acquire all operation information of the power distribution network. By arranging the relay device 220 and the control host 230, the relay device 220 communicates with the detection terminal 210 and the control host 230 respectively, so that the control host 230 can acquire the operation information of the power distribution network through the relay device 220, and further can perform fault diagnosis and maintenance on the power distribution network through the acquired operation information. When the control host 230 diagnoses that the power distribution network has a fault, the control host 230 further locates a target power distribution network segment and generates a control signal for the target power distribution network segment, the control host 230 outputs a corresponding control signal to the target detection terminal 210 through the relay device 220, and the target detection terminal 210 performs on-off control on a switch device of the target power distribution network segment through the target power distribution device 10, so that maintenance control on the power distribution network is realized. According to the embodiment of the invention, the detection terminal 210 and the relay equipment 220 are arranged, and the relay equipment 220 acquires the relevant information of the power distribution equipment 10 in a wireless mode, so that operation and maintenance personnel do not need to climb to a telegraph pole to connect the power distribution equipment 10 during each operation and maintenance, the operation and maintenance efficiency is improved, and the safety of the working personnel is improved. By arranging the relay equipment 220 and the control host 230, remote diagnosis of the power distribution network is realized, the workload of field maintainers is reduced, and the diagnosis efficiency and the diagnosis accuracy of the power distribution network are improved.
Optionally, fig. 2 is a block diagram of another power distribution operation and maintenance system according to an embodiment of the present invention. On the basis of the above embodiment, referring to fig. 2, the detection terminal 210 includes a first processing module 211 and a first communication module 212; the relay device 220 includes a second processing module 221 and a second communication module 222;
the first processing module 211 is connected with the first communication module 212; the second processing module 221 is connected with the second communication module 222;
the first communication module 212 is connected to the second communication module 222 to enable detection of the communication connection of the terminal 210 and the relay device 220.
Specifically, the first processing module 211 may be configured to perform preprocessing, such as filtering and shaping, on the acquired operation information of the power distribution network to filter out a noise signal, and output the preprocessed operation information according to a certain format.
The first communication module 212 and the second communication module 222 may be configured for automatic pairing or manual selection of pairing by a user. In one embodiment, the second processing module 221 of the relay device 220 controls the second communication module 222 to periodically scan the detection terminals 210 within the communication range, and when the detection terminal 210 is detected, controls the second communication module 222 to automatically perform pairing connection with the first communication module 212 in the detection terminal 210, so that during the movement of the relay device 220, the communication connection with different detection terminals 210 is updated to acquire the operation information of all power distribution networks.
Or the second processing module 221 in the relay device 220 may also perform communication connection only with the target detection terminal 210 by responding to a selection instruction of the user, so that the detection terminal 210 to be connected can be manually selected by the maintenance personnel. For example, in a specific time or under a specific condition, the operation and maintenance operation needs to be performed specifically for the power distribution device 10 corresponding to a certain detection terminal 210, and at this time, a maintenance worker may manually select the detection terminal 210 to be connected to perform the pairing connection.
In one embodiment, the first communication module 212 and the second wireless communication module are at least one of a bluetooth module, a GPRS module, a WIFI module, an RF module, a ZigBee module, a 4G communication module, and a 5G communication module.
Optionally, with reference to fig. 2, the detection terminal 210 further includes a temperature and humidity detection module 213, and the temperature and humidity detection module 213 is connected to the first processing module 211;
the temperature and humidity detecting module 213 is configured to detect an ambient temperature and an ambient humidity of the power distribution apparatus 10.
Specifically, the temperature and humidity detection module 213 can detect the ambient temperature and the ambient humidity of the power distribution device 10, and by detecting the ambient temperature and the ambient humidity of the power distribution device 10, the control host 230 analyzes the ambient temperature and the ambient humidity information based on the set time period, and can determine the operating environment of the power distribution network, and the information can be used as a basis for judging the aging and the insulation performance of the power distribution network.
Meanwhile, by collecting the ambient temperature and the ambient humidity of the power distribution equipment 10 and outputting the ambient temperature and the ambient humidity to the control host 230, the control host 230 can determine the current operating environment of the power distribution network and perform fault diagnosis by combining the current operating environment, which is beneficial to improving the fault diagnosis efficiency and the fault diagnosis accuracy of the power distribution network.
As an aspect of operation and maintenance of the power distribution network, the detection terminal 210 outputs the ambient temperature and the ambient humidity to the control host 230 via the relay device 220, and the control host 230 compares the ambient temperature and the ambient humidity with a built-in temperature threshold and humidity threshold respectively to determine whether the current ambient temperature and ambient humidity are over-limit or not, and outputs corresponding control information to maintain the power distribution network when the current ambient temperature and ambient humidity are over-limit.
Optionally, with continued reference to fig. 2, the detection terminal 210 further includes an alarm module 214, and the alarm module 214 is connected to the first processing module 211;
the alarm module 214 is configured to respond to the alarm trigger signal output by the first processing module 211 to perform an alarm.
Specifically, the alarm module 214 alarms in response to the alarm trigger signal output by the first processing module 211.
In this embodiment, the alarm module 214 may be used to perform fault diagnosis in cooperation with operation and maintenance personnel. For example, when the control host 230 determines that a power distribution network has a fault and locates a target power distribution network segment, the control host 230 outputs an alarm trigger signal, and outputs the alarm trigger signal to the detection terminal 210 through the relay device 220, and the first processing module 211 in the detection terminal 210 outputs the alarm trigger signal, so as to trigger the alarm module 214 to alarm. Alternatively, the control host 230 may also notify the maintenance personnel of the specific target power distribution network segment by sending a short message to the maintenance personnel.
The alarm module 214 may be, for example, a buzzer and/or a light emitting diode to perform a buzzer alarm and/or a light emitting alarm. And the operation and maintenance personnel can position the fault power distribution network segment according to the sound alarm signal and/or the light alarm signal.
Optionally, with continued reference to fig. 2, the power distribution device 10 includes a power detection module, an input amount acquisition module, and an output amount control module; the first processing module 211 is respectively connected with the power supply detection module, the input quantity acquisition module and the output quantity control module;
the detection terminal 210 acquires a voltage signal and a current signal of the corresponding power distribution network through the power detection module;
the detection terminal 210 also acquires the state information of the power distribution network and the state information of the switching devices in the power distribution network through the input quantity acquisition module;
the detection terminal 210 outputs a control signal to the output amount control module to control the on/off of the corresponding switch device through the output amount control module.
Specifically, the open-amount acquisition module in the power distribution equipment 10 may record state information of a corresponding power distribution network segment, where the state information may include, for example, short-circuit fault information of the power distribution network, ground fault information, state amount information of whether current and voltage are over-limit, on-off state of a switching device in the power distribution network, and the like. When acquiring the operation information of the power distribution network, the detection terminal 210 acquires the state information of the power distribution network stored in the power distribution equipment 10, and forwards the state information to the control host 230 through the relay equipment 220, and the control host 230 performs fault diagnosis on the power distribution network by integrating the state information and the operation information of the power distribution network.
In one embodiment, the switch device is a pole-mounted switch, the state information of the switch device includes an on-off state of the pole-mounted switch and an energy storage state of the pole-mounted switch, and the energy storage state is used for judging whether the energy currently stored in the pole-mounted switch reaches an on or off limit value.
In one embodiment, the IO port of the first processing module 211 is connected to the open-amount acquisition module through a photocoupler, so as to acquire the signal acquired by the open-amount acquisition module in a periodic manner or a triggered manner.
A current transformer and a voltage transformer are configured in a power supply detection module of the power distribution device 10, wherein the current transformer can detect a current signal of the power distribution network, and the voltage transformer can detect a voltage signal of the power distribution network, so that the detection terminal 210 can acquire the current signal and the voltage signal of the power distribution network through the current transformer and the voltage transformer. It should be noted that the current signal and the voltage signal refer to an actual current value and an actual voltage value of the power distribution network line.
In an embodiment, the IO port of the first processing module 211 is connected to a voltage transformer and a current transformer through an AD conversion chip, or an ADC sampling channel of the first processing module 211 is directly connected to the voltage transformer and the current transformer, so as to obtain secondary side voltage signals and current signals of the voltage transformer and the current transformer, and further obtain voltage values and current values on a power distribution network line.
The output quantity control module is used for controlling the on-off of a switch device in the power distribution network. In one embodiment, the switch device is an on-pole switch, and each power distribution device 10 correspondingly manages one on-pole switch, so that the control host 230 correspondingly controls the on-pole switch to perform switching on and off actions through the corresponding switching-off amount control module according to the output control signal, so as to cooperate with the maintenance of the target power distribution network segment with the fault.
Optionally, fig. 3 is a block diagram of another power distribution operation and maintenance system according to an embodiment of the present invention. On the basis of the above embodiment, referring to fig. 3, the detection terminal 210 further includes a power supply module 215, and the power supply module 215 is connected with a solar panel 216.
Specifically, the power supply module 215 may be a storage battery, for example. The power supply module 215 is connected to the solar panel 216, so that the solar panel 216 charges the power supply module 215. The power supply module 215 supplies power to the first processing module 211, the first communication module 212, and other devices in the detection terminal 210. In this embodiment, the power supply module 215 is configured for the detection terminal 210 to independently supply power, and power is not required to be supplied through the power distribution network, so that the detection terminal 210 can still normally operate under the condition of power failure of the power distribution network, and the information of power failure of the power distribution network can be fed back to the control host 230 through the relay device 220, and the control host 230 realizes automatic diagnosis.
Optionally, on the basis of the above embodiment, the relay device 220 further includes a liquid crystal display, an input unit, and a data storage unit, which are connected to the second processing module 221. The input unit may be, for example, a keyboard, a mouse, or the like. The relay device 220 in this embodiment may be, but is not limited to, a computer, a tablet computer, a smart phone, a handheld device, and the like.
Optionally, fig. 4 is a flowchart of a power distribution operation and maintenance method provided in an embodiment of the present invention, where the power distribution operation and maintenance method is applicable to a situation of performing maintenance and repair on a power distribution network, so as to implement remote fault diagnosis and repair. Referring to fig. 4, the power distribution operation and maintenance method includes the following specific steps:
s410, at least one detection terminal collects operation information of the power distribution network through correspondingly connected power distribution equipment.
The number of the detection terminals in this embodiment is multiple, specifically, each power distribution device is correspondingly connected with one detection terminal, so that each detection terminal acquires the operation information of the power distribution network through the power distribution device correspondingly connected with the detection terminal.
The operation information of the power distribution network comprises current signals and voltage signals of the power distribution network, state information of the power distribution network stored by each power distribution device, and on-off information and energy storage information of a column switch of a power distribution network segment where each power distribution device is located.
And S420, the relay equipment acquires the operation information and outputs the operation information to the control host.
The relay equipment can communicate with the detection terminals in a communication range, on one hand, the operation information of the power distribution network collected by each detection terminal is sent to the control host, and on the other hand, the relevant control signals output by the control host are output to the corresponding detection terminals.
In this embodiment, because the power of the first communication module in the detection terminal is limited, the first communication module cannot directly communicate with the control host, and the relay device is configured to connect each detection terminal and the control host respectively, so that data interaction between each detection terminal and the control host is realized, and further, the control host performs remote maintenance and repair on the power distribution network.
And S430, the control host generates fault diagnosis information according to the operation information, determines the target power distribution network segment with the fault, and outputs a control signal to the relay equipment.
And the control host machine carries out fault diagnosis on the power distribution network according to the acquired running information of the power distribution network according to a set algorithm to generate fault diagnosis information.
In this embodiment, when the detection terminal sends the operation information of the power distribution network to the relay device, the detection terminal sends the address information of the power distribution network to the relay device, and the relay device forwards the address information to the control host, so that the control host can associate the power distribution network segment with a fault with the corresponding power distribution device according to the address information to locate the target power distribution network segment. And the control host further generates a control signal based on the fault diagnosis information according to a set control strategy, and the control signal is used for carrying out fault maintenance on the target power distribution network segment.
And S440, the relay equipment outputs a control signal to the target detection terminal so as to indicate the target detection terminal to control the on-off of the switch device of the target power distribution network segment.
And the relay equipment forwards the received control signal to the target detection terminal according to the address information. And the target detection terminal outputs a corresponding control signal to a switching device in the target power distribution network segment through a switching value control module of the connected power distribution equipment so as to control the switching device to be switched on or switched off.
According to the embodiment of the invention, the operation information of the power distribution network acquired by the detection terminal correspondingly connected is acquired through the configured detection terminal and is forwarded to the control host through the relay equipment, so that the control host can remotely acquire the operation information of the power distribution network, and remote maintenance and overhaul of the power distribution network are realized. Meanwhile, the operation information output by the detection terminal carries the address information of the power distribution equipment, so that the control host can determine a target power distribution network segment with a fault based on the operation information of the power distribution network, a corresponding control signal is generated, the relay equipment forwards the control signal to the target detection terminal, and the target detection terminal controls the corresponding power distribution equipment to carry out on-off control on a switch device in the target power distribution network segment, so that remote fault maintenance is realized. According to the embodiment of the invention, because each distribution device is provided with one detection terminal, the relay device can directly acquire the related signals of the distribution device in a wireless mode, maintenance personnel do not need to climb a pole to manually connect with wired devices, and then data forwarding is carried out through the relay device, so that remote data interaction between the control host and the distribution device is realized, and the method has the advantages of high terminal operation and maintenance efficiency and convenience in operation, and can guarantee the personal safety of the maintenance personnel.
Optionally, on the basis of the above technical solution, before the at least one detection terminal acquires the operation information of the power distribution network through the power distribution device connected correspondingly, the power distribution operation and maintenance method further includes:
the relay device and the at least one detection terminal are in pairing connection so as to establish communication connection between the relay device and the at least one detection terminal.
Specifically, the relay device may be periodically connected in a pairing manner with a first communication module in each detection terminal in a communication range, so that information of each detection terminal may be sequentially acquired, or a user manually selects a corresponding detection terminal to pair with the relay device according to a user requirement, so as to enable the relay device to communicate with a specified detection terminal.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A power distribution operation and maintenance system is characterized by comprising at least one detection terminal, relay equipment and a control host; the relay equipment is respectively in communication connection with at least one detection terminal and the control host;
the at least one detection terminal is connected with power distribution equipment in a power distribution network in a one-to-one correspondence mode, and is used for acquiring operation information of the power distribution network through the power distribution equipment and outputting the operation information to the relay equipment;
the relay equipment is used for outputting the operation information to the control host; receiving a control signal of the control host, and outputting the control signal to a target detection terminal;
the control host is used for generating fault diagnosis information according to the operation information, determining a target power distribution network segment with a fault, and outputting a control signal to the relay equipment, wherein the control signal is used for indicating the target detection terminal to control the on-off of a switch device of the target power distribution network segment.
2. The power distribution operation and maintenance system according to claim 1, wherein the detection terminal comprises a first processing module and a first communication module; the relay equipment comprises a second processing module and a second communication module;
the first processing module is connected with the first communication module; the second processing module is connected with the second communication module;
the first communication module is connected with the second communication module to realize the communication connection between the detection terminal and the relay device.
3. The power distribution operation and maintenance system according to claim 2, wherein the detection terminal further comprises a temperature and humidity detection module, and the temperature and humidity detection module is connected to the first processing module;
the temperature and humidity detection module is used for detecting the ambient temperature and the ambient humidity of the power distribution equipment.
4. The power distribution operation and maintenance system according to claim 2, wherein the detection terminal further comprises an alarm module, and the alarm module is connected to the first processing module;
the alarm module is used for responding to the alarm trigger signal output by the first processing module to alarm.
5. The power distribution operation and maintenance system according to claim 2, wherein the power distribution equipment comprises a power supply detection module, an input amount acquisition module and an output amount control module; the first processing module is respectively connected with the power supply detection module, the input quantity acquisition module and the output quantity control module;
the detection terminal acquires a voltage signal and a current signal of the power distribution network through the power supply detection module;
the detection terminal also acquires the state information of the power distribution network and the state information of a switching device in the power distribution network through the input amount acquisition module;
the detection terminal outputs the control signal to the output quantity control module so as to control the on-off of the corresponding switch device through the output quantity control module.
6. The power distribution operation and maintenance system according to claim 1, wherein the first communication module and the second wireless communication module are at least one of a bluetooth module, a GPRS module, a WIFI module, an RF module, a ZigBee module, a 4G communication module, and a 5G communication module.
7. The power distribution operation and maintenance system according to claim 1, wherein the detection terminal further comprises a power supply module, and the power supply module is connected with a solar panel so as to be charged through the solar panel.
8. An electric distribution operation and maintenance method applied to the electric distribution operation and maintenance system of any one of claims 1 to 7, characterized in that the method comprises the following steps:
at least one detection terminal collects the operation information of the power distribution network through correspondingly connected power distribution equipment;
the relay equipment acquires the operation information and outputs the operation information to the control host;
the control host generates fault diagnosis information according to the operation information, determines a target power distribution network segment with a fault, and outputs a control signal to the relay equipment;
and the relay equipment outputs the control signal to a target detection terminal so as to indicate the target detection terminal to carry out on-off control on a switch device of the target power distribution network segment.
9. The power distribution operation and maintenance method according to claim 8, wherein before the at least one detection terminal collects the operation information of the power distribution network through the correspondingly connected power distribution equipment, the method further comprises:
and the relay equipment is in pairing connection with at least one detection terminal so as to establish communication connection between the relay equipment and the at least one detection terminal.
10. The power distribution operation and maintenance method according to claim 8, wherein the operation information at least comprises a current signal and a voltage signal of the power distribution network, and the state data of the power distribution network recorded by the power distribution equipment.
CN202010522354.8A 2020-06-10 2020-06-10 Power distribution operation and maintenance system and power distribution operation and maintenance method Pending CN111668931A (en)

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CN113743490A (en) * 2021-08-27 2021-12-03 广东电网有限责任公司 User identification method and device, electronic equipment and storage medium
CN117952599A (en) * 2024-03-27 2024-04-30 江苏金寓信息科技有限公司 Intelligent machine room platform operation and maintenance management system based on cloud computing

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CN204835707U (en) * 2015-07-31 2015-12-02 陕西祥林电子科技有限公司 FTU terminal monitoring devices based on zigBee wireless communication module
CN105226832A (en) * 2015-11-06 2016-01-06 国网山东莒县供电公司 A kind of relay protecting method
CN108173933A (en) * 2017-12-27 2018-06-15 中山德著智能科技有限公司 A kind of electric energy quality monitoring system and method

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CN204835707U (en) * 2015-07-31 2015-12-02 陕西祥林电子科技有限公司 FTU terminal monitoring devices based on zigBee wireless communication module
CN105226832A (en) * 2015-11-06 2016-01-06 国网山东莒县供电公司 A kind of relay protecting method
CN108173933A (en) * 2017-12-27 2018-06-15 中山德著智能科技有限公司 A kind of electric energy quality monitoring system and method

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CN113743490A (en) * 2021-08-27 2021-12-03 广东电网有限责任公司 User identification method and device, electronic equipment and storage medium
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