CN113890192B - Intelligent control system and method applied to electrical optimization - Google Patents
Intelligent control system and method applied to electrical optimization Download PDFInfo
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- CN113890192B CN113890192B CN202111172535.3A CN202111172535A CN113890192B CN 113890192 B CN113890192 B CN 113890192B CN 202111172535 A CN202111172535 A CN 202111172535A CN 113890192 B CN113890192 B CN 113890192B
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Classifications
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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
- H02J13/00001—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 display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
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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
- H02J13/00006—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
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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
- H02J13/00032—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
- H02J13/0004—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 involved in a protection system
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
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- Y—GENERAL 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
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- Y—GENERAL 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS 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
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/242—Home appliances
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- Y—GENERAL 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS 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
- Y04S40/00—Systems 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
- Y04S40/12—Systems 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
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- Y—GENERAL 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS 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
- Y04S40/00—Systems 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
- Y04S40/12—Systems 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
- Y04S40/124—Systems 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 wired telecommunication networks or data transmission busses
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Human Computer Interaction (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses an intelligent control system and method applied to electrical optimization, wherein the system comprises the following steps: the intelligent control system comprises data acquisition equipment, an intelligent control center, a communication unit and a power supply control terminal; one end of the data acquisition equipment is connected with the corresponding power equipment or the conveying line, and the other end of the data acquisition equipment is connected with the intelligent control center through the communication unit; the intelligent control center is connected with the power supply control terminal; the data acquisition equipment is used for acquiring the operation data of the corresponding power equipment or the corresponding transmission line; transmitting the operation data to an intelligent control center through a communication unit; the intelligent control center performs analysis processing and converts analysis processing results into optimization instructions; and sending the optimization instruction to the power control terminal, and executing corresponding actions by the power control terminal to realize the optimal configuration of the electric circuit. The system can realize the automatic monitoring, measuring and automatic control of the power transmission and distribution lines of the transformer substation, the conveying line and the electric equipment, and the comprehensive automatic functions of communication with dispatching and the like.
Description
Technical Field
The invention belongs to the technical field of electrical control, and particularly relates to an intelligent control system and method applied to electrical optimization.
Background
At present, with the development of social economy, the traditional electric automatic control cannot meet the requirement of environmental change, and is faced with important challenges. The electrical engineering calculation is increased gradually, and the heavy work cannot be borne simply by manpower.
The development and application of artificial intelligence technology bring a brand new technological transformation for electric automation control, optimize various links of electric automation control such as design, overhaul and information acquisition, and play a great role in continuous development and maturation.
Therefore, in order to develop and utilize artificial intelligence technology to the maximum extent, the optimization and upgrading of the electric automation control are realized. Is a hotspot for research by practitioners in the art.
Disclosure of Invention
The main object of the present invention is to provide an intelligent control system and method for electrical optimization, which at least partially solve the above technical problems.
In order to achieve the above object, the present invention adopts the following technical scheme:
an intelligent control system for electrical optimization, comprising: the intelligent control system comprises data acquisition equipment, an intelligent control center, a communication unit and a power supply control terminal; one end of the data acquisition equipment is connected with the corresponding power equipment or the corresponding transmission line, and the other end of the data acquisition equipment is connected with the intelligent control center through the communication unit; the intelligent control center is connected with the power supply control terminal;
the data acquisition equipment is used for acquiring operation data of corresponding power equipment or a conveying line; transmitting the operation data to the intelligent control center through the communication unit;
the intelligent control center performs analysis processing and converts the analysis processing result into an optimization instruction; and sending the optimization instruction to a power supply control terminal, and executing corresponding actions by the power supply control terminal to realize the optimal configuration of the electric circuit.
Further, the data acquisition device includes: the device comprises a voltage and current measuring instrument, a monitoring probe, a relay protection device and a wave recorder; the voltage and current measuring instrument is used for acquiring the voltage and current value of the monitored power equipment; the monitoring probe is used for acquiring the running state of the power equipment and the circuit in the monitored area; the relay protection device provides corresponding power equipment to execute brake-off action or send out signals when the power equipment fails; the recorder is used for monitoring a power system of the power equipment and recording fault types, occurrence time, voltage and current change processes and action conditions of the relay protection device.
Further, the communication unit selects a corresponding communication mode according to the application scene of the power equipment; when the line where the power equipment is located is 110kV or below, a single Ethernet is adopted; and when the line where the power equipment is located is more than 220kV, adopting the dual Ethernet.
Further, the method further comprises the following steps: wind power or photovoltaic power generation equipment; and when the analysis and processing result comprises a power consumption peak value, the power supply control terminal executes the action of connecting with the wind power or photovoltaic power generation equipment.
Further, the method further comprises the following steps: a GPS time service unit; and the device is respectively connected with the data acquisition equipment, the intelligent control center, the communication unit and the power control terminal and is used for synchronizing time.
Further, the intelligent control center includes:
the load analysis module is used for analyzing the annual electricity consumption and generating a load analysis result; when the annual electricity consumption is lower than a preset threshold value, pushing to select a transformer strategy meeting the minimum requirement; when the load change is large in four seasons, pushing two standby lines; the first strip is provided with a transformer with larger power which meets the load in summer and winter; the second set meets the smaller power transformer of the spring and autumn load;
the video analysis module is used for identifying the state of the electric wires laid in the monitoring area, analyzing the electric wires by combining the electric loads and generating a wire analysis result;
the fault analysis module is used for analyzing the data recorded by the recorder and the relay protection device and determining the fault reason;
the conversion module is used for converting the analysis results of the load analysis module, the video analysis module and the fault analysis module into optimization instructions;
and the sending module is used for sending the optimization instruction of the conversion module to the power supply control terminal.
Further, the power control terminal includes: the dispatching center comprises a dispatching center operation station, a switch, a direct current system, an alternating current system, a wind power system, a photovoltaic system and a load system;
the dispatching center operation station is connected with the intelligent control center and is connected with the direct current system, the alternating current system, the wind power system, the photovoltaic system and the load system through a switch.
In a second aspect, an embodiment of the present invention further provides an intelligent control method applied to electrical optimization, where the intelligent control system applied to electrical optimization as described in any one of the foregoing is used to implement intelligent control.
Compared with the prior art, the invention has the following beneficial effects:
an intelligent control system for electrical optimization, comprising: the intelligent control system comprises data acquisition equipment, an intelligent control center, a communication unit and a power supply control terminal; one end of the data acquisition equipment is connected with the corresponding power equipment or the corresponding transmission line, and the other end of the data acquisition equipment is connected with the intelligent control center through the communication unit; the intelligent control center is connected with the power supply control terminal; the data acquisition equipment is used for acquiring operation data of corresponding power equipment or a conveying line; transmitting the operation data to the intelligent control center through the communication unit; the intelligent control center performs analysis processing and converts the analysis processing result into an optimization instruction; and sending the optimization instruction to a power supply control terminal, and executing corresponding actions by the power supply control terminal to realize the optimal configuration of the electric circuit.
(1) The invention realizes the comprehensive automatic functions of automatic monitoring, measuring, automatic control and microcomputer protection of the power transmission and distribution lines of the transformer substation, the transmission line and the electric equipment, and the dispatching communication and the like by utilizing advanced data acquisition equipment, computer technology, communication technology and signal processing technology through function combination and optimal design.
(2) The monitoring and operation of normal operation of the transformer substation, the conveying line and the electric equipment can be realized, when an accident happens, the acquisition, monitoring and control of transient electric quantity are completed by relay protection, fault recording and the like, faults are rapidly removed, and the recovery operation after the accident is completed; and reasonable optimization is performed, so that normal operation and safety are ensured.
Drawings
FIG. 1 is a block diagram of an intelligent control system for electrical optimization according to the present invention;
FIG. 2 is a block diagram of an intelligent control system for electrical optimization according to the present invention;
fig. 3 is a block diagram of an intelligent control center according to the present invention.
Fig. 4 is a schematic structural diagram of a power control terminal provided by the present invention.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, the present invention provides an intelligent control system for electrical optimization, including: the intelligent control system comprises data acquisition equipment 1, an intelligent control center 2, a communication unit 3 and a power supply control terminal 4; one end of the data acquisition equipment 1 is connected with a corresponding power equipment or a transmission line, and the other end of the data acquisition equipment is connected with the intelligent control center 2 through the communication unit 3; the intelligent control center 3 is connected with the power supply control terminal 4.
The data acquisition device 1 may comprise a voltage and current measuring instrument, a monitoring probe, a relay protection device and a recorder which are connected to an electrical consumer or a transmission line. Such as transformers in jurisdictions or factories, which are monitored for voltage and current, are convenient for the regulation and control of the intelligent control center. And reasonable optimization suggestions can be given according to the use condition of the transformer. Specifically, a suitable transformer group is selected according to actual conditions, and the transformers are divided into a single-phase transformer and a three-phase transformer according to the number of phases. In the process of single-phase load, the aim can be achieved by applying a single-phase transformer, and in the situation, a transformer group is installed, and the transformer consumes certain power resources, so that unnecessary power resource consumption can occur in the using process of the transformer, and the aim of realizing electric energy conservation and emission reduction is not met. Therefore, in the process of construction, in order to effectively realize electrical energy conservation and emission reduction, the transformer must be scientifically and reasonably selected according to actual conditions.
The monitoring probe is used for acquiring the running states of the power equipment and the circuit in the monitored area, and generating and displaying pictures. For example, the power supply distance in the monitoring area can be identified by the existing image identification technology, and a picture record can be generated for the running state of the power supply equipment. The intelligent control center ensures that correct judgment can be realized on voltage selection through the determination of the power supply distance and the running state, thereby realizing the aims of electric energy conservation and emission reduction and reducing or reducing unnecessary consumption of electric power resources. Such as unnecessary bending, twisting, etc. of the wires laid in the monitoring area; the intelligent control center may give a new routing strategy that reduces bending or twisting.
The relay protection device can act on a breaker to trip or send a signal when electric equipment such as a generator, a circuit, a transformer, a capacitor, a motor and the like of an electric element in the electric power system fails or is in an abnormal running state. When in fault, the fault element is automatically, quickly and selectively cut off, so that the fault element is prevented from being damaged continuously, and other parts without faults are ensured to be quickly restored to normal operation. In addition, a fault signal (trip or load shedding) may be issued to the intelligent control center. The intelligent control center can analyze and process according to the signals and send corresponding processing strategies to the power supply control terminal. When a short circuit is transmitted, overcurrent protection, low voltage protection, and distance protection are performed using a current, a voltage, a line measurement impedance, and the like.
The wave recorder functions: when the power system fails and oscillates, automatically recording the failure type, failure occurrence time, current and voltage change process and relay protection and action conditions of an automatic device, and calculating the distance from a short circuit point to the installation position of the device; the information is sent to the intelligent control center, can be analyzed and processed by the intelligent control center, and gives an early warning or reminding to process faults and give a fault solution to the future power system sending fault trend by combining the historical data.
For example, taking a transformer as an example, after obtaining the voltage and current values of the transformer and the internal temperature value, the following specific configuration is made for the protection of the electrical quantity that can be performed against the fault that occurs in the transformer:
differential protection, high-side backup protection (including composite voltage starting overcurrent protection, zero-sequence current protection, etc.), low-side backup protection (including composite voltage starting overcurrent protection, overload protection, etc.)
The non-charge protection configuration that can be performed is as follows:
the gas protection is used as one of main protection of the main transformer and comprises a main transformer body and an on-load voltage regulating switch, wherein the light gas action signals and the heavy gas action instantaneously jump the circuit breakers at the two sides of the main transformer. The main transformer releases the protection instantaneous jump main transformer two-side circuit breaker.
And the circuit breakers at the two sides of the main transformer are operated when the temperature is too high, and the circuit breakers are operated to signal when the temperature is increased.
In this embodiment, the data acquisition device is configured to acquire operation data of a corresponding power device or a transmission line; transmitting the operation data to the intelligent control center through a communication unit; the intelligent control center performs analysis processing and converts analysis processing results into optimization instructions; and sending the optimization instruction to the power control terminal, and executing corresponding actions by the power control terminal to realize the optimal configuration of the electric circuit. The invention realizes the comprehensive automatic functions of automatic monitoring, measuring, automatic control and microcomputer protection of the power transmission and distribution lines of the transformer substation, the transmission line and the electric equipment, and the dispatching communication and the like by utilizing advanced data acquisition equipment, computer technology, communication technology and signal processing technology through function combination and optimal design. The monitoring and operation of normal operation of the transformer substation, the conveying line and the electric equipment can be realized, when an accident happens, the acquisition, monitoring and control of transient electric quantity are completed by relay protection, fault recording and the like, faults are rapidly removed, and the recovery operation after the accident is completed; and reasonable optimization is performed, so that normal operation and safety are ensured.
Further, the communication unit selects a corresponding communication mode according to the application scene of the power equipment; for example, an RCS-9794A communication device can be adopted, and a data acquisition device is taken as an example, for example, 2 layers are logically divided, a station control layer and a spacer layer, and a single Ethernet is adopted when the line between each layer is 110kV or below; when the line between each layer is more than 220kV, the dual Ethernet is adopted.
In one embodiment, the intelligent control system further comprises: wind power or photovoltaic power generation equipment; and when the analysis processing result comprises a power consumption peak value, the power supply control terminal executes an action connected with the wind power or photovoltaic power generation equipment. The wind power or photovoltaic power generation equipment can change the power supply peak value, ensure the overall stability of the power grid, and can effectively improve the efficiency and stability of power supply facilities compared with the prior art.
Further, the method further comprises the following steps: wind power or photovoltaic power generation equipment; and when the analysis and processing result comprises a power consumption peak value, the power supply control terminal executes the action of connecting with the wind power or photovoltaic power generation equipment.
Further, referring to fig. 2, the method further includes: a GPS time service unit 5; and the device is respectively connected with the data acquisition equipment 1, the intelligent control center 2, the communication unit 3 and the power control terminal 4 for synchronizing time. For example, a GPS astronomical clock with the RCS-9785C model can be adopted, and is respectively connected with the data acquisition equipment 1, the intelligent control center 2, the communication unit 3 and the power supply control terminal 4 through a time synchronization bus for synchronizing time. The RCS-9785C is internally provided with a GPS receiving module or a Beidou receiving module which is used as an independent clock synchronization device; when the method is practically applied, a dual-machine dual-network mutual backup system can be formed by two sets of RCS-9785C, high-reliability and high-precision time synchronization signals can be provided for 220kV and above voltage class substations, and the requirement of single machine time synchronization of 110kV and below voltage class substations can be met by using one set of RCS-9785C.
Further, referring to fig. 3, the intelligent control center 2 includes:
the load analysis module 21 analyzes the annual electricity consumption and generates a load analysis result; when the annual electricity consumption is lower than a preset threshold value, pushing to select a transformer strategy meeting the minimum requirement; when the load change is large in four seasons, pushing two standby lines; the first strip is provided with a transformer with larger power which meets the load in summer and winter; the second set meets the smaller power transformer of the spring and autumn load;
the video analysis module 22 is used for identifying the state of the electric wires laid in the monitoring area, analyzing the electric wires by combining the electric loads and generating a wire analysis result;
the fault analysis module 23 is used for analyzing the data recorded by the recorder and the relay protection device and determining the fault reason;
the conversion module 24 is configured to convert analysis results of the load analysis module, the video analysis module and the fault analysis module into an optimization instruction;
and the sending module 25 is used for sending the optimization instruction of the conversion module to the power supply control terminal.
Further, referring to fig. 4, the power control terminal 4 includes: dispatch center operator station 41, switch 42, DC system 43, AC system 44, wind power system 45, photovoltaic system 46, and load system 47;
the dispatch center operation station 41 is connected with the intelligent control center 2 and is connected with a direct current system 43, an alternating current system 44, a wind power system 45, a photovoltaic system 46 and a load system 47 through a switch 42.
The dc system 43 includes, for example: the communication gateway, a plurality of DCDC converters, super capacitors respectively connected with the DCDC converters and the like; the wind power system 45 includes a communication gateway, a photovoltaic control cabinet, an ammeter, a circuit breaker, etc. which are respectively connected with the communication gateway; the load system 47 includes, for example, a communication gateway, and a charging pile and a circuit breaker, which are connected to the communication gateway, respectively.
In a second aspect, an embodiment of the present invention further discloses an intelligent control method applied to electrical optimization, where the intelligent control system applied to electrical optimization in the foregoing embodiment is used, and the data acquisition device is configured to acquire operation data of a corresponding electrical device or a transmission line; transmitting the operation data to an intelligent control center through a communication unit; the intelligent control center performs analysis processing and converts analysis processing results into optimization instructions; and sending the optimization instruction to the power control terminal, and executing corresponding actions by the power control terminal to realize the optimal configuration of the electric circuit. The automatic monitoring, measuring, automatic control and microcomputer protection of the power transmission and distribution lines of the transformer substation, the conveying line and the electric equipment are realized, and the normal operation and safety are ensured.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. An intelligent control system for electrical optimization, comprising: the intelligent control system comprises data acquisition equipment, an intelligent control center, a communication unit and a power supply control terminal; one end of the data acquisition equipment is connected with the corresponding power equipment or the corresponding transmission line, and the other end of the data acquisition equipment is connected with the intelligent control center through the communication unit; the intelligent control center is connected with the power supply control terminal;
the data acquisition equipment is used for acquiring operation data of corresponding power equipment or a conveying line; transmitting the operation data to the intelligent control center through the communication unit;
the intelligent control center performs analysis processing and converts the analysis processing result into an optimization instruction; the optimization instruction is sent to a power control terminal, and the power control terminal executes corresponding actions to realize the optimal configuration of the electric circuit;
the power control terminal includes: the dispatching center comprises a dispatching center operation station, a switch, a direct current system, an alternating current system, a wind power system, a photovoltaic system and a load system; the dispatching center operation station is connected with the intelligent control center and is connected with the direct current system, the alternating current system, the wind power system, the photovoltaic system and the load system through a switch;
the wind power system comprises a communication gateway, a wind power control cabinet, an ammeter and a circuit breaker, wherein the wind power control cabinet, the ammeter and the circuit breaker are respectively connected with the communication gateway; when the analysis processing result comprises a power consumption peak value, the power supply control terminal executes the action of connecting with the wind power or photovoltaic power generation equipment;
further comprises: a GPS time service unit; the system is respectively connected with the data acquisition equipment, the intelligent control center, the communication unit and the power supply control terminal and is used for synchronizing time; the GPS time service unit specifically comprises a mutual backup system of a double-machine double-network formed by two sets of RCS-9785C, can provide time synchronization signals with high reliability and high precision for 220kV and above voltage class substations, and can meet the requirement of single machine time synchronization of 110kV and below voltage class substations by using one set of RCS-9785C:
the data acquisition device comprises: the device comprises a voltage and current measuring instrument, a monitoring probe, a relay protection device and a wave recorder; the voltage and current measuring instrument is used for acquiring the voltage and current value of the monitored power equipment; the monitoring probe is used for acquiring the running state of the power equipment and the circuit in the monitored area; the relay protection device provides corresponding power equipment to execute brake-off action or send out signals when the power equipment fails; the recorder is used for monitoring a power system of the power equipment and recording fault types, occurrence time, voltage and current change processes and action conditions of the relay protection device;
the communication unit selects a corresponding communication mode according to the application scene of the power equipment; when the line where the power equipment is located is 110kV or below, a single Ethernet is adopted; when the line where the power equipment is located is above 220kV, a dual Ethernet is adopted;
the intelligent control center includes:
the load analysis module is used for analyzing the annual electricity consumption and generating a load analysis result; when the annual electricity consumption is lower than a preset threshold value, pushing to select a transformer strategy meeting the minimum requirement; when the load change is large in four seasons, pushing two standby lines; the first strip is provided with a transformer with larger power which meets the load in summer and winter; the second set meets the smaller power transformer of the spring and autumn load;
the video analysis module is used for identifying the state of the electric wires laid in the monitoring area, analyzing the electric wires by combining the electric loads and generating a wire analysis result;
the fault analysis module is used for analyzing the data recorded by the recorder and the relay protection device and determining the fault reason;
the conversion module is used for converting the analysis results of the load analysis module, the video analysis module and the fault analysis module into optimization instructions;
and the sending module is used for sending the optimization instruction of the conversion module to the power supply control terminal.
2. An intelligent control method applied to electrical optimization is characterized in that: intelligent control is achieved using the intelligent control system applied to electrical optimization as claimed in claim 1.
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