CN116526449A - Loss reduction method, device and system for power distribution network - Google Patents

Loss reduction method, device and system for power distribution network Download PDF

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Publication number
CN116526449A
CN116526449A CN202310369064.8A CN202310369064A CN116526449A CN 116526449 A CN116526449 A CN 116526449A CN 202310369064 A CN202310369064 A CN 202310369064A CN 116526449 A CN116526449 A CN 116526449A
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CN
China
Prior art keywords
data
power distribution
difference value
distribution network
early warning
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Pending
Application number
CN202310369064.8A
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Chinese (zh)
Inventor
王晓博
孙亚康
李捷
邢冲
何向东
东磊
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.)
Jize County Power Supply Branch Of State Grid Hebei Electric Power Co ltd
State Grid Corp of China SGCC
Handan Power Supply Co of State Grid Hebei Electric Power Co Ltd
Original Assignee
Jize County Power Supply Branch Of State Grid Hebei Electric Power Co ltd
State Grid Corp of China SGCC
Handan Power Supply Co of State Grid Hebei Electric Power Co Ltd
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Application filed by Jize County Power Supply Branch Of State Grid Hebei Electric Power Co ltd, State Grid Corp of China SGCC, Handan Power Supply Co of State Grid Hebei Electric Power Co Ltd filed Critical Jize County Power Supply Branch Of State Grid Hebei Electric Power Co ltd
Priority to CN202310369064.8A priority Critical patent/CN116526449A/en
Publication of CN116526449A publication Critical patent/CN116526449A/en
Pending legal-status Critical Current

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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
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • 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]
    • 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
    • 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
    • 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
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
    • 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
    • H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
    • H02J2203/10—Power transmission or distribution systems management focussing at grid-level, e.g. load flow analysis, node profile computation, meshed network optimisation, active network management or spinning reserve management
    • 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
    • Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications

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

Abstract

The application discloses a loss reduction method, device and system for a power distribution network, wherein the loss reduction method for the power distribution network comprises the following steps: acquiring real-time equipment data according to the running state of the platform area equipment; the transformer area represents a power supply range or a power supply area of the transformer; when the difference value between the real-time equipment data and the preset equipment data is larger than or equal to the preset difference value, generating early warning information; and reducing the line loss of the power distribution network according to the real-time equipment data and the early warning information. The power distribution network line loss management work can be simplified.

Description

Loss reduction method, device and system for power distribution network
Technical Field
The application relates to the technical field of power distribution network loss reduction, in particular to a power distribution network loss reduction method, device and system.
Background
The low-voltage transformer area network line loss is an important component of the power distribution network line loss, and the loss occupies most of the whole line loss, so that the low-voltage loss of the transformer area is reduced, and the key point of improving the line loss is that. However, the line loss of the transformer area is affected in many ways, so that loss reduction and electricity saving are complex and difficult work, specific loss reduction measures of all links are grasped from the microcosmic view, and the management is enhanced from the macroscopic view, so that the management is complex, time-consuming and labor-consuming.
Disclosure of Invention
The present application has been made in order to solve the above technical problems. The embodiment of the application provides a power distribution network loss reduction method, device and system, which can simplify power distribution network line loss management work.
According to one aspect of the application, there is provided a loss reduction method for a power distribution network, including: acquiring real-time equipment data according to the running state of the platform area equipment; the transformer area represents a power supply range or a power supply area of the transformer; when the difference value between the real-time equipment data and the preset equipment data is larger than or equal to the preset difference value, generating early warning information; and reducing the line loss of the power distribution network according to the real-time equipment data and the early warning information.
In an embodiment, the platform area device includes a reactive compensation device, and the acquiring real-time device data according to the operation state of the platform area device includes: switching the reactive compensation device to obtain switching deflection data; when the difference value between the real-time equipment data and the preset equipment data is greater than or equal to the preset difference value, the generating of the early warning information comprises: and when the difference value between the switching position data and the preset switching position data is larger than or equal to a first preset difference value, generating first early warning information.
In an embodiment, the reducing the line loss of the power distribution network according to the real-time device data and the early warning information includes: and according to the first early warning information and the switching position data, a compensation instruction is sent to the reactive compensation device.
In an embodiment, the platform area device includes a cable, and acquiring the real-time device data according to the operation state of the platform area device further includes: obtaining cable insulation data according to the insulation state of the cable; when the difference value between the real-time equipment data and the preset equipment data is greater than or equal to the preset difference value, the generating of the early warning information comprises: and when the difference value between the cable insulation data and the preset insulation data is larger than or equal to a second preset difference value, generating second early warning information.
In an embodiment, the platform area device includes a resistor, and acquiring the real-time device data according to the operation state of the platform area device further includes: obtaining resistance value data according to the resistance value of the resistor; when the difference value between the real-time equipment data and the preset equipment data is greater than or equal to the preset difference value, the generating of the early warning information comprises: and when the difference value between the resistance value data and the preset resistance data is larger than or equal to a third preset difference value, generating third early warning information.
In an embodiment, the platform area device includes an electric energy meter, and acquiring the real-time device data according to the operation state of the platform area device includes: acquiring an electric quantity metering value according to the metering state of the electric energy meter; when the difference value between the real-time equipment data and the preset equipment data is greater than or equal to the preset difference value, the generating of the early warning information comprises: and when the difference value between the electric quantity metering value and the preset electric quantity data is larger than or equal to a fourth preset difference value, fourth early warning information is generated.
In an embodiment, the power distribution network is in communication connection with the master station, wherein the reducing the line loss of the power distribution network according to the real-time equipment data and the early warning information includes: transmitting the real-time equipment data and the early warning information to the master station; acquiring a loss reduction instruction returned by the master station; and reducing the line loss of the power distribution network according to the loss reducing instruction.
In an embodiment, the reducing the line loss of the power distribution network according to the real-time device data and the early warning information includes: matching corresponding loss reduction measures according to the real-time equipment data and the early warning information; and according to the loss reduction measures, the line loss of the power distribution network is reduced.
According to another aspect of the present application, there is provided a loss reducing device for a power distribution network, including: the acquisition module is used for acquiring real-time equipment data according to the running state of the platform area equipment; the transformer area represents a power supply range or a power supply area of the transformer; the generation module is used for generating early warning information when the difference value between the real-time equipment data and the preset equipment data is larger than or equal to the preset difference value; and the loss reduction module is used for reducing the line loss of the power distribution network according to the real-time equipment data and the early warning information.
According to another aspect of the present application, there is provided a loss reduction system for a power distribution network, including: a monitoring device; the loss reducing device is connected with the monitoring device; the loss reduction device is used for executing the loss reduction method of the power distribution network.
According to the loss reduction method, device and system for the power distribution network, on-line monitoring is conducted on the health degree of a low-voltage power distribution area, relevant data of line loss are frozen and returned, data are collected, then big data analysis is conducted, factors affecting the line loss are found, early warning information is generated so as to be processed in a targeted mode quickly, and finally the purposes of reducing the running of the area with the line loss and reducing the loss of a power distribution network are achieved.
Drawings
The foregoing and other objects, features and advantages of the present application will become more apparent from the following more particular description of embodiments of the present application, as illustrated in the accompanying drawings. The accompanying drawings are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate the application and not constitute a limitation to the application. In the drawings, like reference numerals generally refer to like parts or steps.
Fig. 1 is a schematic structural diagram of a loss reduction system of a power distribution network according to an exemplary embodiment of the present application.
Fig. 2 is a flow chart of a loss reduction method of a power distribution network according to an exemplary embodiment of the present application.
Fig. 3 is a schematic structural diagram of a loss reduction device for a power distribution network according to an exemplary embodiment of the present application.
Fig. 4 is a block diagram of an electronic device according to an exemplary embodiment of the present application.
Detailed Description
Hereinafter, example embodiments according to the present application will be described in detail with reference to the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application and not all of the embodiments of the present application, and it should be understood that the present application is not limited by the example embodiments described herein.
Summary of the application
The distribution network consists of overhead lines, cables, towers, distribution transformers, isolating switches, reactive compensation capacitors, some auxiliary facilities and the like. Networks that play an important role in distributing electrical energy in an electrical power network are known as distribution networks. In an electrical power system, a bay refers to a power supply range or area of a (one) transformer. In the power system, the partition management is generally performed, so that more convenient power system management is achieved. The line loss is short for the electric energy loss of the distribution network, and is the electric energy loss and loss generated in various links of transmission, transformation and distribution box marketing in the process of transmitting electric energy from a power plant to a power consumer. Specifically, the loss of active power, reactive power and voltage generated when current flows through each power device (from the user charging electric energy meter to all the power devices of the user, and without the user charging electric energy meter) in the power distribution network within a certain time.
The network line loss of the low-voltage transformer area is an important component of the line loss of the power distribution network, and the loss occupies a large part of the loss of the whole line. Therefore, reducing the low-voltage loss of the station area is an important point for improving the line loss. However, the line loss of a cell is affected in many ways, for example, the cell line loss rate is mainly composed of two parts. The actual line loss is the electric quantity consumed by equipment such as distribution lines, transformers, electric energy meters and the like, and is also related to the distribution of a low-voltage network, the state of low-voltage line equipment, the nature of electricity loads and the running condition. Because a part of electric energy is inevitably lost in the transmission and distribution process, the part of electric energy constitutes actual loss, and the actual loss can be reduced but cannot be completely avoided. The management of line loss is determined by management factors. This aspect causes a relatively complex cause of line loss, such as theft of electricity, misleakage meter reading, metering failure, etc. The management line loss is a main part of the line loss of a power supply enterprise, and the line loss can be reduced or even completely avoided by strengthening management. Therefore, loss reduction and electricity saving are complex and difficult work, specific loss reduction measures of all links are required to be grasped from the microcosmic view, and the management is enhanced from the macroscopic view, so that the management is complex, time-consuming and labor-consuming.
Therefore, the application provides a power distribution network loss reduction method, device and system, which are used for carrying out on-line monitoring on the health degree of a low-voltage power distribution station and freezing and returning line loss related data, collecting data and further carrying out big data analysis, finding out factors influencing the line loss, generating early warning information so as to quickly and pointedly process the information, and finally achieving the purposes of reducing the running of the station with the diseases and reducing the loss of a power distribution network.
Exemplary System
Fig. 1 is a schematic structural diagram of a power distribution network loss reduction system according to an exemplary embodiment of the present application, and as shown in fig. 1, a power distribution network loss reduction system 2 includes: a monitoring device 21; loss reducing means 22, the loss reducing means 22 being connected to the monitoring means 21; the loss reduction device 22 is configured to perform the loss reduction method for the power distribution network according to any one of the foregoing embodiments.
The monitoring device is used for monitoring the equipment which can influence the line loss in the transformer area, real-time equipment data of the transformer area equipment are obtained, that is, the on-line monitoring and the line loss related data freezing back of the low-voltage power distribution transformer area are carried out for the carrier by means of the internet of things technology, the power utilization information acquisition system is accessed for data acquisition, and then big data analysis is carried out, and the line loss supervision of the transformer area is converted into intelligence by manpower.
For example, the monitoring device may include an insulation resistance meter, the insulation resistance meter is used to monitor the grounding resistance of the transformer station area, the real-time resistance value of the grounding resistance is obtained, the loss reducing device may be installed in a compensation power distribution cabinet (JP cabinet), and the loss reducing device is in communication connection with the main station. The damage reducing device compares the real-time resistance value with a preset safety resistance value threshold value, if the difference value between the real-time resistance value and the safety resistance value threshold value is too large and exceeds the safety difference value range, early warning information of exceeding the standard of the resistance is generated and reported to the main station, and the grounding resistance is maintained or replaced according to the indication of the main station command or the preset corresponding standard of the station area, so that the damage reducing purpose is achieved. The loss reducing device can be an integrated calculation module or a control module and is mainly used for data calculation and information transmission. The communication between the loss reducing device and the master station can be realized by using a station area set acquisition concentrator or a self-built data uploading channel to communicate with the master station.
The monitoring device can also comprise an insulation monitor, the insulation monitor monitors the cable insulation state of the transformer area to obtain cable insulation data, the loss reducing device can be installed in the compensation power distribution cabinet, and the loss reducing device is in communication connection with the main station. The cable insulation data is compared with the insulation value of the preset safety threshold by the loss reducing device, if the difference value between the cable insulation data and the insulation value of the safety threshold is too large and exceeds the safety difference range, the early warning information of too low insulation is generated and reported to the main station, and the cable is replaced or maintained according to the indication of the main station order or the preset treatment standard of the station area, so that the purpose of loss reduction is achieved.
The utility model provides a power distribution network falls and decreases system carries out on-line monitoring and line loss related data freeze passback to low pressure distribution transformer area health degree, gathers data and then carries out big data analysis, finds the factor that influences the line loss, generates early warning information so that in order to be in addition the pertinence processing fast, finally reaches the purpose that reduces the running of transformer area disease, reduces the loss of distribution network.
Exemplary method
Fig. 2 is a flow chart of a loss reduction method of a power distribution network according to an exemplary embodiment of the present application, and as shown in fig. 2, the loss reduction method of the power distribution network includes:
step 100: and acquiring real-time equipment data according to the running state of the platform area equipment.
The bay represents the power supply range or power supply area of the transformer.
The transformer area refers to the power supply range or area of the transformer(s). In the power system, the partition management is generally performed, so that more convenient power system management is achieved. And monitoring equipment which can influence line loss in the platform region to acquire real-time equipment data of the platform region equipment.
Step 200: and when the difference value between the real-time equipment data and the preset equipment data is larger than or equal to the preset difference value, generating early warning information.
And presetting a safe operation threshold value for the area equipment, namely presetting equipment data, carrying out big data analysis on the real-time equipment data, and when the difference value between the real-time equipment data and the preset equipment data is smaller than the preset difference value, reflecting that the area equipment normally operates at the moment, wherein line loss is not caused or the influence on the line loss is small. If the difference value between the real-time equipment data and the preset equipment data is larger than or equal to the preset difference value, the real-time equipment data can reflect the risk of line loss caused by corresponding equipment or have larger influence on the line loss, and corresponding early warning information is generated according to the real-time equipment data and the platform area equipment corresponding to the real-time equipment data. The early warning information can comprise corresponding area equipment, real-time equipment data of the area equipment and the difference value between the real-time equipment data and preset equipment data, which affect the line loss, and can intuitively and conveniently display the risk of the line loss, so that the line loss can be reduced in time.
Step 300: and according to the real-time equipment data and the early warning information, the line loss of the power distribution network is reduced.
The early warning information prompts the staff in the platform area or the staff in the master station to timely make countermeasures to the early warning information so as to achieve the purpose of reducing loss. The health degree of the low-voltage power distribution transformer area is monitored on line, the line loss related data are frozen and returned, and the low-voltage power distribution transformer area is connected to the power consumption information acquisition system for data acquisition, so that big data analysis is performed, and the line loss supervision of the transformer area is converted from manual supervision to intelligent.
In an embodiment, the platform device includes a reactive compensation device, and the step 100 may include: switching the reactive compensation device to obtain switching displacement data; the step 200 may include: when the difference value between the switching position data and the preset switching position data is larger than or equal to a first preset difference value, first early warning information is generated.
Reactive power compensation, for short, plays a role in improving the power factor of a power distribution network in an electric power supply system, reduces the loss of a power supply transformer and a transmission line, improves the power supply efficiency and improves the power supply environment. Reactive compensation devices are very important in power supply systems. The controller of the capacitor cabinet measures the power factor of the circuit, determines the capacitor to be compensated, and inputs the capacitor for compensation, namely the reactive compensation device is selected according to actual requirements. Switching refers to that a resistor is connected into a braking unit and is short-circuited from the braking unit, and inrush current is generated when a capacitor is switched in. Therefore, according to the characteristics of the capacitor and the switching, the reactive compensation device in the transformer area is switched, the data of switching in deflection, namely switching deflection data, is recorded, the switching deflection data and the preset switching bit data are compared, and when the difference value of the switching deflection data and the preset switching deflection data is larger than or equal to a first preset difference value, first early warning information is generated. The first preset difference value is a safety threshold value of the difference value between the switching position data and the preset switching position data, and when the difference value between the switching position data and the preset switching position data is smaller than the first preset difference value, the switching position data can be determined to have no influence or smaller influence on line loss. The first early warning information may include corresponding station equipment affecting the line loss, switching shift data of the station equipment, and a difference value between the switching shift data and preset switching shift data.
In one embodiment, the step 300 may include: and according to the first early warning information and the switching deflection data, a compensation instruction is sent to the reactive compensation device.
The first early warning information can be uploaded to the main station, and the staff in the platform area is prompted in time, and according to the first early warning information, the staff can quickly determine the risk position affecting the line loss without time consumption for investigation. The loss reducing device is in communication connection with the main station, and after the main station receives the first early warning information, the main station can remotely send a compensation instruction to the reactive compensation device, and the reactive compensation device is operated to perform reactive compensation. Or, the loss reducing device is arranged in the compensation power distribution cabinet (JP cabinet), the loss reducing device is connected with the compensation power distribution cabinet, the loss reducing device acquires the shear bit data, and the calculated shear bit data at the moment indicate that reactive compensation is needed, and then the loss reducing device directly sends a compensation instruction to the compensation power distribution cabinet (JP cabinet) to control the reactive compensation device to perform reactive compensation. The reactive compensation method can be selected according to actual conditions, a preset compensation scheme or a compensation instruction sent by the main station. The preset compensation scheme can be input into the loss reduction device in advance, and when the switching position data is acquired, the corresponding preset compensation scheme is matched according to the switching bit data or the difference value between the switching position data and the preset switching position data.
In an embodiment, the zone device includes a cable, and the step 100 may further include: obtaining cable insulation data according to the insulation state of the cable; the step 200 may include: and when the difference value between the cable insulation data and the preset insulation data is larger than or equal to a second preset difference value, generating second early warning information.
The monitoring device can comprise an insulation monitor, and the insulation monitor monitors the cable insulation state of the transformer area to acquire cable insulation data. For example, the loss reducing device can be arranged in the compensation power distribution cabinet and is in communication connection with the main station. After cable insulation data fed back by the insulation monitor are acquired by the loss reduction device, the cable insulation data are compared with insulation values of a preset safety threshold, if the difference value between the cable insulation data and the insulation values of the safety threshold is too large and exceeds the safety difference value range, second early warning information of too low insulation is generated and reported to a main station, and the cable is replaced or maintained according to indication issued by the main station or preset corresponding specifications of a station area, so that the purpose of loss reduction is achieved. The second preset difference value is a safety threshold value of the difference value between the cable insulation data and the preset insulation data, and when the difference value between the cable insulation data and the preset insulation data is smaller than the second preset difference value, the cable insulation data can be determined to have no or smaller influence on the cable loss. The second early warning information may include a corresponding cable affecting the line loss, cable insulation data of the cable, and a difference between the cable insulation data and preset insulation data. The second early warning information can be uploaded to the main station, and the staff in the platform area is prompted in time, and the risk position affecting the line loss can be rapidly determined according to the second early warning information, so that time-consuming investigation is not needed.
In an embodiment, the area device includes a resistor, and the step 100 may further include: obtaining resistance data of the resistor according to the resistance of the resistor; the step 200 may include: and when the difference value between the resistance value data and the preset resistance data is larger than or equal to a third preset difference value, generating third early warning information.
The monitoring device can include insulation resistance meter, adopts insulation resistance meter to monitor transformer platform district ground resistance, acquires the real-time resistance of ground resistance, falls to decrease and decreases the device and install in compensation switch board (JP cabinet), falls to decrease and decreases the device and carry out communication connection with the main website. The damage reducing device compares the real-time resistance value with a preset safety resistance value threshold value, if the difference value between the real-time resistance value and the safety resistance value threshold value is too large and exceeds the safety difference value range, early warning information of exceeding the standard of the resistance is generated and reported to the main station, and the grounding resistance is maintained or replaced according to the indication of the main station command or the preset corresponding standard of the station area, so that the damage reducing purpose is achieved. The loss reducing device can be an integrated calculation module or a control module and is mainly used for data calculation and information transmission. The communication between the loss reducing device and the master station can be realized by using a station area set acquisition concentrator or a self-built data uploading channel to communicate with the master station. The third preset difference value is a safety threshold value of the difference value between the resistance value data and the preset resistance data, and when the difference value between the resistance value data and the preset resistance data is smaller than the third preset difference value, the resistance value data can be determined to have no or smaller influence on the line loss. The third early warning information may include a corresponding resistance affecting the line loss, resistance value data of the resistance, and a difference value between the resistance value data and preset resistance data. The third early warning information can be uploaded to the main station, and the station area staff is prompted in time, so that the risk position affecting the line loss can be rapidly determined by the staff according to the third early warning information, and time-consuming investigation is not needed.
In an embodiment, the platform device includes an electric energy meter, and the step 100 may further include: acquiring an electric quantity metering value according to the metering state of the electric energy meter; the step 200 may include: and when the difference value between the electric quantity metering value and the preset electric quantity data is larger than or equal to a fourth preset difference value, generating fourth early warning information.
The electric energy meter is used for measuring electric energy, and if the electric energy meter fails, such as the burning loss of the electric energy meter, the failure of a mechanical transmission part and the failure of an electronic element, the electric energy meter is less or not used for measuring electric quantity, the electric energy loss is caused, and the line loss rate of a station area is increased. Therefore, the electric quantity metering value of the electric energy meter is obtained in real time or intermittently, if the difference value between the electric quantity metering value and the preset electric quantity data is larger than or equal to a fourth preset difference value, the condition that the electric energy meter is in the moment can be determined to have a large influence on line loss, the electric energy meter needs to be overhauled or replaced, and fourth early warning information is generated according to the condition at the moment. The fourth early warning information can be uploaded to the main station, and the staff in the platform area can be timely prompted, and the risk position affecting the line loss can be quickly determined according to the fourth early warning information, so that time-consuming investigation is not needed. The third early warning information may include a corresponding electric energy meter affecting the line loss, an electric quantity metering value of the electric energy meter, and a difference value between the electric quantity metering value and preset electric quantity data.
In an embodiment, the power distribution network is communicatively connected to the master station, where the step 300 may include: transmitting real-time equipment data and early warning information to a master station; acquiring a loss reduction instruction returned by the main station; and reducing the line loss of the power distribution network according to the loss reducing instruction.
The early warning information can be uploaded to the main station, and the station workers are prompted in time, so that the risk position affecting the line loss can be rapidly determined according to the early warning information, and time-consuming investigation is not needed. For example, the loss reducing device is in communication connection with the main station, and after the main station receives the early warning information, the main station can remotely send a compensation instruction to the reactive compensation device, and after the loss reducing device receives the loss reducing instruction, the reactive compensation device is operated according to the loss reducing instruction to perform reactive compensation. Or, the loss reducing device is arranged in the compensation power distribution cabinet (JP cabinet), the loss reducing device is connected with the compensation power distribution cabinet, the loss reducing device acquires the shear bit data, and the calculated shear bit data at the moment indicate that reactive compensation is needed, and then the loss reducing device directly sends a compensation instruction to the compensation power distribution cabinet (JP cabinet) to control the reactive compensation device to perform reactive compensation. The reactive compensation method can be selected according to actual conditions, a preset compensation scheme or a compensation instruction sent by the main station. The preset compensation scheme can be input into the loss reduction device in advance, and when the switching position data is acquired, the corresponding preset compensation scheme is matched according to the switching bit data or the difference value between the switching position data and the preset switching position data.
In one embodiment, the step 300 may include: matching corresponding loss reduction measures according to the real-time equipment data and the early warning information; according to the loss reduction measures, the line loss of the power distribution network is reduced.
The loss reducing device is arranged in the compensation power distribution cabinet (JP cabinet), connected with the compensation power distribution cabinet and used for acquiring real-time equipment data and obtaining real-time equipment data at the moment or loss reducing measures corresponding to early warning information in a matching mode, and directly sends loss reducing instructions to the compensation power distribution cabinet (JP cabinet). The loss reduction measures can be preset, a loss reduction measure can be correspondingly arranged for each early warning message, when the early warning message is received, the loss reduction measures are timely prompted or directly implemented, the dependence on the professional degree of staff is reduced, and further the simplicity and the intellectualization of loss reduction are realized. For example, set up the display on the JP cabinet, the display is connected with falling and damaging the device, with early warning information, correspond to fall to damage measure or the main website sends to reduce and damage instruction direct show on the display, be favorable to the staff to know the line loss risk place fast audio-visual, in time make the countermeasure.
Exemplary apparatus
Fig. 3 is a schematic structural diagram of a loss reduction device for a power distribution network according to an exemplary embodiment of the present application, as shown in fig. 3, the loss reduction device 8 for a power distribution network includes: an obtaining module 81, configured to obtain real-time device data according to an operation state of the platform device; the transformer area represents the power supply range or power supply area of the transformer; the generating module 82 is configured to generate early warning information when a difference between the real-time device data and the preset device data is greater than or equal to a preset difference; and the loss reduction module 83 is configured to reduce line loss of the power distribution network according to the real-time equipment data and the early warning information.
The utility model provides a power distribution network falls decreases device carries out on-line monitoring and line loss related data to low voltage distribution transformer district health degree and freezes the passback, gathers data and carries out big data analysis, finds the factor that influences the line loss, generates early warning information so that to be in order to be in addition to the pertinence processing fast, finally reaches the purpose that reduces the running of transformer district area disease, reduces the loss of distribution network.
In an embodiment, the platform device includes a reactive compensation device, and the obtaining module 81 may be configured to: switching the reactive compensation device to obtain switching displacement data; wherein, the generating module 82 may be configured to: when the difference value between the switching position data and the preset switching position data is larger than or equal to a first preset difference value, first early warning information is generated.
In an embodiment, the loss reduction module 83 may be configured to: and according to the first early warning information and the switching deflection data, a compensation instruction is sent to the reactive compensation device.
In an embodiment, the area device includes a cable, and the obtaining module 81 may be configured to: obtaining cable insulation data according to the insulation state of the cable; wherein, the generating module 82 may be configured to: and when the difference value between the cable insulation data and the preset insulation data is larger than or equal to a second preset difference value, generating second early warning information.
In an embodiment, the area device includes a resistor, and the acquiring module 81 may be configured to: obtaining resistance data of the resistor according to the resistance of the resistor; wherein, the generating module 82 may be configured to: and when the difference value between the resistance value data and the preset resistance data is larger than or equal to a third preset difference value, generating third early warning information.
In an embodiment, the platform device includes a power meter, and the obtaining module 81 may be configured to: acquiring an electric quantity metering value according to the metering state of the electric energy meter; wherein, the generating module 82 may be configured to: and when the difference value between the electric quantity metering value and the preset electric quantity data is larger than or equal to a fourth preset difference value, generating fourth early warning information.
In an embodiment, the power distribution network is communicatively connected to the master station, where the loss reduction module 83 may be configured to: transmitting real-time equipment data and early warning information to a master station; acquiring a loss reduction instruction returned by the main station; and reducing the line loss of the power distribution network according to the loss reducing instruction.
In an embodiment, the loss reduction module 83 may be configured to: matching corresponding loss reduction measures according to the real-time equipment data and the early warning information; according to the loss reduction measures, the line loss of the power distribution network is reduced.
Exemplary electronic device
An electronic device, the electronic device comprising: a processor; a memory for storing processor-executable instructions; and the processor is used for executing the power distribution network loss reduction method according to the embodiment provided by the application.
Next, an electronic device according to an embodiment of the present application is described with reference to fig. 4. The electronic device may be either or both of the first device and the second device, or a stand-alone device independent thereof, which may communicate with the first device and the second device to receive the acquired input signals therefrom.
Fig. 4 illustrates a block diagram of an electronic device according to an embodiment of the present application.
As shown in fig. 4, the electronic device 10 includes one or more processors 11 and a memory 12.
The processor 11 may be a Central Processing Unit (CPU) or other form of processing unit having data processing and/or instruction execution capabilities, and may control other components in the electronic device 10 to perform desired functions.
Memory 12 may include one or more computer program products that may include various forms of computer-readable storage media, such as volatile memory and/or non-volatile memory. The volatile memory may include, for example, random Access Memory (RAM) and/or cache memory (cache), and the like. The non-volatile memory may include, for example, read Only Memory (ROM), hard disk, flash memory, and the like. One or more computer program instructions may be stored on the computer readable storage medium that can be executed by the processor 11 to implement the power distribution network loss reduction methods and/or other desired functions of the various embodiments of the present application described above. Various contents such as an input signal, a signal component, a noise component, and the like may also be stored in the computer-readable storage medium.
In one example, the electronic device 10 may further include: an input device 13 and an output device 14, which are interconnected by a bus system and/or other forms of connection mechanisms (not shown).
When the electronic device is a stand-alone device, the input means 13 may be a communication network connector for receiving the acquired input signals from the first device and the second device.
In addition, the input device 13 may also include, for example, a keyboard, a mouse, and the like.
The output device 14 may output various information to the outside, including the determined distance information, direction information, and the like. The output means 14 may include, for example, a display, speakers, a printer, and a communication network and remote output devices connected thereto, etc.
Of course, only some of the components of the electronic device 10 that are relevant to the present application are shown in fig. 4 for simplicity, components such as buses, input/output interfaces, etc. are omitted. In addition, the electronic device 10 may include any other suitable components depending on the particular application.
The computer program product may write program code for performing the operations of embodiments of the present application in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server.
A computer readable storage medium, where a computer program is stored, where the computer program is configured to execute a loss reduction method of a power distribution network according to an embodiment provided in the present application.
The computer readable storage medium may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may include, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium would include the following: an electrical connection having one or more wires, a portable disk, a hard disk, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of the application to the form disclosed herein. Although a number of example aspects and embodiments have been discussed above, a person of ordinary skill in the art will recognize certain variations, modifications, alterations, additions, and subcombinations thereof.

Claims (10)

1. A loss reduction method for a power distribution network, comprising the steps of:
acquiring real-time equipment data according to the running state of the platform area equipment; the transformer area represents a power supply range or a power supply area of the transformer;
when the difference value between the real-time equipment data and the preset equipment data is larger than or equal to the preset difference value, generating early warning information; and
and according to the real-time equipment data and the early warning information, reducing the line loss of the power distribution network.
2. The power distribution network loss reduction method according to claim 1, wherein the district equipment comprises a reactive compensation device; the step of obtaining real-time equipment data according to the running state of the platform area equipment comprises the following steps:
switching the reactive compensation device to obtain switching deflection data;
when the difference value between the real-time equipment data and the preset equipment data is greater than or equal to the preset difference value, the generating of the early warning information comprises:
and when the difference value between the switching position data and the preset switching position data is larger than or equal to a first preset difference value, generating first early warning information.
3. The power distribution network loss reduction method according to claim 2, wherein the reducing the loss of the power distribution network according to the real-time equipment data and the early warning information comprises:
and according to the first early warning information and the switching position data, a compensation instruction is sent to the reactive compensation device.
4. The power distribution network loss reduction method according to claim 1, wherein the zone equipment comprises a cable; the obtaining real-time equipment data according to the running state of the platform area equipment further comprises:
obtaining cable insulation data according to the insulation state of the cable;
when the difference value between the real-time equipment data and the preset equipment data is greater than or equal to the preset difference value, the generating of the early warning information comprises:
and when the difference value between the cable insulation data and the preset insulation data is larger than or equal to a second preset difference value, generating second early warning information.
5. The power distribution network loss reduction method according to claim 1, wherein the district equipment includes a resistor; the obtaining real-time equipment data according to the running state of the platform area equipment further comprises:
obtaining resistance value data according to the resistance value of the resistor;
when the difference value between the real-time equipment data and the preset equipment data is greater than or equal to the preset difference value, the generating of the early warning information comprises:
and when the difference value between the resistance value data and the preset resistance data is larger than or equal to a third preset difference value, generating third early warning information.
6. The power distribution network loss reduction method according to claim 1, wherein the station device comprises an electric energy meter, and the acquiring real-time device data according to the operation state of the station device comprises:
acquiring an electric quantity metering value according to the metering state of the electric energy meter;
when the difference value between the real-time equipment data and the preset equipment data is greater than or equal to the preset difference value, the generating of the early warning information comprises:
and when the difference value between the electric quantity metering value and the preset electric quantity data is larger than or equal to a fourth preset difference value, fourth early warning information is generated.
7. The power distribution network loss reduction method according to claim 1, wherein the power distribution network is in communication connection with a master station, and wherein the reducing the line loss of the power distribution network according to the real-time equipment data and the early warning information comprises:
transmitting the real-time equipment data and the early warning information to the master station;
acquiring a loss reduction instruction returned by the master station;
and reducing the line loss of the power distribution network according to the loss reducing instruction.
8. The power distribution network loss reduction method according to claim 1, wherein the reducing the line loss of the power distribution network according to the real-time equipment data and the early warning information comprises:
matching corresponding loss reduction measures according to the real-time equipment data and the early warning information;
and according to the loss reduction measures, the line loss of the power distribution network is reduced.
9. Loss reducing device for power distribution network, which is characterized by comprising:
the acquisition module is used for acquiring real-time equipment data according to the running state of the platform area equipment; the transformer area represents a power supply range or a power supply area of the transformer;
the generation module is used for generating early warning information when the difference value between the real-time equipment data and the preset equipment data is larger than or equal to the preset difference value; and
and the loss reduction module is used for reducing the line loss of the power distribution network according to the real-time equipment data and the early warning information.
10. A loss reduction system for a power distribution network, comprising:
a monitoring device;
the loss reducing device is connected with the monitoring device; the loss reduction device is used for executing the loss reduction method of the power distribution network according to any one of the claims 1-8.
CN202310369064.8A 2023-04-07 2023-04-07 Loss reduction method, device and system for power distribution network Pending CN116526449A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310369064.8A CN116526449A (en) 2023-04-07 2023-04-07 Loss reduction method, device and system for power distribution network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310369064.8A CN116526449A (en) 2023-04-07 2023-04-07 Loss reduction method, device and system for power distribution network

Publications (1)

Publication Number Publication Date
CN116526449A true CN116526449A (en) 2023-08-01

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Country Status (1)

Country Link
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