A synchronous line loss monitoring and management system based on intelligent perception

Abstract

The present invention relates to a synchronous line loss monitoring and management system based on intelligent perception, including: an abnormal intelligent diagnosis module, a large screen visualization module, a three-rate data comparison and analysis mining module, an edge computing module and a distribution area line loss classification calculation advanced application module; the abnormal intelligent diagnosis module is used to perform abnormal diagnosis on the line and area line loss; the large screen visualization module is used to display the completion of the four-point line loss index and the power monitoring analysis; the three-rate data comparison and analysis mining module is used to compare the "three rates" of the distribution theoretical line loss, statistical line loss and synchronous line loss to evaluate the distribution network operation; the edge computing module is used to carry out edge computing of the synchronous power sales and area line loss rate on the equipment side; the distribution area line loss classification calculation advanced application module is used for topology identification and line loss classification calculation. The present invention can enhance the quality of basic data management and collection and operation and maintenance related to synchronous line loss.

Description

Technical Field

[0001] The present invention belongs to the technical field of synchronous line loss monitoring and management, and relates to a synchronous line loss monitoring and management system, in particular to a synchronous line loss monitoring and management system based on intelligent perception. Background Art

[0002] With the implementation of the new strategy of "three types and two networks", the deployment of ubiquitous power Internet of Things has created better conditions for the application and improvement of the line loss system in the same period, and also put forward higher requirements. On the one hand, the company's "Ubiquitous Power Internet of Things Construction Outline" not only clearly states that it is necessary to vigorously improve the ability of automatic data collection, automatic acquisition, and flexible application, and to achieve the goal of 100% penetration rate of distribution and operation in 2021; the "Ubiquitous Power Internet of Things 2019 Construction Plan" deploys 57 key tasks, vigorously carries out optimization and improvement of distribution and operation, construction of distribution Internet of Things, construction of transmission and transformation Internet of Things, construction of data middle platform, research and development and application of "State Grid Core", research and development and application of new intelligent terminals, etc., to further improve the quality of all-round data such as ledgers, topology, and collection, and collection and computing capabilities. Create conditions.

[0003] At present, synchronous line loss is one of the most important operating quality and efficiency indicators of power supply enterprises. In recent years, it has become an important standard for power supply enterprises to carry out fine management of line loss. However, in the initial stage of governance in many areas, some organizational systems are not sound, and daily management work is not scientific and reasonable. There are often many abnormal data in the synchronous line loss of the substation area, and the single governance method lacks corresponding analysis capabilities, which leads to great obstacles in the governance work. Therefore, an intelligent synchronous line loss monitoring and governance system is urgently needed.

[0004] The search did not find any prior art publications that are identical or similar to the present invention. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and propose a synchronous line loss monitoring and management system based on intelligent perception, which can enhance the management and collection and operation quality of basic data related to synchronous line loss.

[0006] The present invention solves the practical problem by adopting the following technical solutions:

[0007] A synchronous line loss monitoring and management system based on intelligent perception, including: abnormal intelligent diagnosis module, large screen visualization module, three-rate data comparison and analysis mining module, edge computing module and distribution area line loss classification calculation advanced application module;

[0008] The abnormal intelligent diagnosis module is used to diagnose abnormal line and substation line losses, and realize active analysis of high-loss line substations; the large-screen visualization module is used to display the completion of the four-point line loss indicators and power monitoring analysis; the three-rate data comparison and analysis mining module is used to compare the "three rates" of distribution theoretical line loss, statistical line loss and synchronous line loss to evaluate the operation of the distribution network; the edge computing module is used to carry out edge computing of synchronous power sales and substation line loss rates on the equipment side with distribution transformers as units; the distribution substation line loss grading calculation advanced application module is used for topology identification and line loss grading calculation.

[0009] Moreover, the abnormal diagnosis module includes: an archive diagnosis and analysis module, a topology diagnosis and analysis module, a model diagnosis and analysis module, an acquisition diagnosis and analysis module, a line loss diagnosis and analysis module and an intelligent diagnosis module. The line loss diagnosis and analysis module is used to perform abnormal diagnosis on line and substation line losses, and for high-loss and negative-loss data, it intelligently diagnoses the abnormal causes of sudden changes in electricity and relationship errors based on the electricity volume; the intelligent diagnosis module is used to identify effective abnormal data items through a high-loss model, and realize active analysis of high-loss line substations.

[0010] Moreover, the three-rate data comparison and analysis mining module includes: a three-rate data comparison module, a load auxiliary adjustment module, a reactive power auxiliary adjustment module and a new equipment simulation module; the three-rate data comparison module is used to carry out the "three-rate" comparison and related data value mining of theoretical line loss, statistical line loss and synchronous line loss, and evaluate the distribution network operation status through the line loss calculation results combined with the data of distribution transformer three-phase load, copper loss, iron loss and line power supply radius.

[0011] Moreover, the large-screen visualization module includes: a four-point line loss index display module and a power monitoring and analysis module. The four-point line loss index display module is used to realize the display of the completion status of each professional index of four-point line loss, index trend analysis, line loss fluctuation analysis, and three-rate comparison analysis; the power monitoring and analysis module is used to further distinguish the composition of power, and display it from the analysis of industry power consumption, customer abnormal power consumption, five-star power supply stations, and key focus routes.

[0012] Moreover, the edge computing module includes a line loss edge computing module and a data access module. The line loss edge computing module is used to carry out edge computing of the power sales volume and the line loss rate of the substation in the same period with the distribution transformer as a unit on the equipment side, and the data access module is used to return messages based on the intelligent concentrator.

[0013] Moreover, the advanced application module for grading line loss calculation in the distribution substation area includes: an automatic line-transformer relationship identification module, an automatic station-user relationship identification module, a branch topology automatic identification module, a branch box to meter box line loss calculation module, an area total meter to branch box line loss calculation module and an area total meter to meter box line loss calculation module; the transformer relationship automatic identification module, the station-user relationship automatic identification module and the branch topology automatic identification module are used to automatically identify the line-transformer relationship and the station-user relationship, as well as the branch topology structure under the substation through HPLC and two-way power frequency communication technology; the branch box to meter box line loss calculation module, the area total meter to branch box line loss calculation module and the area total meter to meter box line loss calculation module are used to calculate line losses at various levels and quickly locate loss points in the substation area.

[0014] Advantages and beneficial effects of the present invention:

[0015] The present invention establishes a synchronous line loss detection and management system based on intelligent perception, innovates edge computing, and proposes a new technology of automatic topology identification, realizing intelligent diagnosis of line loss anomalies, auxiliary loss reduction of distribution networks, and comprehensive display of results. At the same time, it improves the on-site operation coordination mechanism, thereby strengthening the management and collection of basic data related to synchronous line losses. The quality of operation and maintenance promotes the integration of marketing, distribution and dispatching and the improvement of business management, deeply explores the value of line loss and electricity big data, comprehensively realizes "six-all" management, and ultimately improves the management level of synchronous line losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a system structure diagram of the present invention. DETAILED DESCRIPTION

[0017] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings:

[0018] A synchronous line loss monitoring and management system based on intelligent perception, such as Figure 1 As shown, it includes: abnormal intelligent diagnosis module, large screen visualization module, three-rate data comparison and analysis mining module, edge computing module and distribution station area line loss classification calculation advanced application module;

[0019] The abnormal intelligent diagnosis module is used to diagnose abnormal line and substation line losses, and realize active analysis of high-loss line substations; the large-screen visualization module is used to display the completion of the four-point line loss indicators and power monitoring analysis; the three-rate data comparison and analysis mining module is used to compare the "three rates" of distribution theoretical line loss, statistical line loss and synchronous line loss to evaluate the operation of the distribution network; the edge computing module is used to carry out edge computing of synchronous power sales and substation line loss rates on the equipment side with distribution transformers as units; the distribution substation line loss grading calculation advanced application module is used for topology identification and line loss grading calculation.

[0020] In this embodiment, the abnormal diagnosis module includes: an archive diagnosis and analysis module, a topology diagnosis and analysis module, a model diagnosis and analysis module, a collection diagnosis and analysis module, a line loss diagnosis and analysis module and an intelligent diagnosis module. The line loss diagnosis and analysis module is used to perform abnormal diagnosis on line and substation line losses, and for high-loss and negative-loss data, it intelligently diagnoses the abnormal causes of sudden changes in electricity and relationship errors based on the electricity volume; the intelligent diagnosis module is used to identify effective abnormal data items through a high-loss model, and realize active analysis of high-loss line substations.

[0021] In this embodiment, the three-rate data comparison and analysis mining module includes: a three-rate data comparison module, a load auxiliary adjustment module, a reactive power auxiliary adjustment module and a new equipment simulation module; the three-rate data comparison module is used to carry out the comparison of "three rates" such as theoretical line loss, statistical line loss and synchronous line loss and the value mining of related data, and evaluate the distribution network operation through the line loss calculation results, combined with the three-phase load of the distribution transformer, copper loss, iron loss, line power supply radius and other data, locate the weak points to be optimized, clarify the precise loss reduction direction, and support the transformation work such as low-voltage cutting and phase adjustment;

[0022] In this embodiment, the large-screen visualization module includes a four-point line loss index display module and a power monitoring and analysis module. The four-point line loss index display module is used to realize the display of the completion status of each professional index of the four-point line loss, index trend analysis, line loss fluctuation analysis, and three-rate comparison analysis; the power monitoring and analysis module is used to further distinguish the composition of power, and display it from the analysis of industry power consumption, abnormal customer power consumption, five-star power supply stations, key focus routes, etc.

[0023] In this embodiment, the edge computing module includes a line loss edge computing module and a data access module. The line loss edge computing module is used to carry out edge computing such as the power sales volume and the line loss rate of the substation in the same period on the device side with the distribution transformer as the unit, and the data access module is used to return messages based on the intelligent concentrator; the function of the edge computing module deepens the application of ubiquitous Internet of Things technology, and uses intelligent distribution transformer terminals and a new generation of intelligent collection terminals to carry out edge computing such as the power sales volume and the line loss rate of the substation in the same period on the device side with the distribution transformer as the unit. It mainly includes user power edge computing, substation line loss edge computing, and data transmission. Based on the message returned by the intelligent concentrator, data parsing services are developed to analyze the message format and extract the required data, and the edge computing results are combined with the substation topology map for display.

[0024] In this embodiment, the advanced application module for grading line loss calculation in the distribution substation area includes: an automatic line-transformer relationship identification module, an automatic station-user relationship identification module, a branch topology automatic identification module, a branch box to meter box line loss calculation module, an area total meter to branch box line loss calculation module and an area total meter to meter box line loss calculation module; the transformer relationship automatic identification module, the station-user relationship automatic identification module and the branch topology automatic identification module are used to automatically identify the line-transformer relationship and the station-user relationship, as well as the branch topology structure under the substation through HPLC and two-way power frequency communication technology; the branch box to meter box line loss calculation module, the area total meter to branch box line loss calculation module and the area total meter to meter box line loss calculation module are used to calculate line losses at each level and quickly locate loss points in the substation area.

[0025] The functions and effects of each module in the present invention are further described below:

[0026] In this embodiment, the abnormal intelligent diagnosis module mainly includes five functions. Function 1: File diagnosis and analysis. This function is to incorporate the abnormal models of conventional lines, substations, and meters into the synchronous line loss system. By checking with the source end and applying the abnormal model, the causes of abnormal lines, substations, and meters are actively analyzed to solve the problem that traditional files are abnormal and cannot be accessed. Function 2: Topology diagnosis and analysis. This function divides the "region" in the synchronous system, sets the village, distribution room and related lines as the minimum line area, calculates the regional line loss, and diagnoses the topological abnormal lines and substations by comparing the regional line loss with the single substation and line line loss. Function 3: Model diagnosis and analysis. This function is to diagnose the area, voltage division threshold, and line, substation, and component line loss calculation model. It performs model abnormality diagnosis and analysis from three dimensions: file consistency, model attributes, and logical analysis, and locates the model with problems. Function 4: Collection diagnosis and analysis. This function can automatically calculate the line loss. For the problem of abnormal sudden increase in line loss to high loss, it can restore the calculation for users who have not collected it, and actively prompt the affected users. Function 5: Line loss diagnosis and analysis. This function can diagnose abnormal line losses in lines and substations. For data such as high loss and negative loss, it can intelligently diagnose abnormal causes such as sudden changes in power and relationship errors based on power. Function 6: Intelligent diagnosis. This function has developed a high-loss auxiliary analysis model library, which can mine metering and anti-electricity theft abnormal data items such as loss of voltage and current in the source system and abnormal zero-line current and push them to the synchronous system. It can identify effective abnormal data items through high-loss models and realize active analysis of high-loss line substations.

[0027] In this embodiment, the large-screen visualization module mainly includes two functions. Function 1: Four-point line loss index. This function is to realize the completion of each professional index of four-point line loss, index trend analysis, line loss fluctuation analysis, and three-rate comparison analysis, to help professional users to carry out abnormal line loss management. Function 2: Electricity monitoring and analysis. This function further distinguishes the composition of electricity. From the dimensions of trend, geographical distribution, voltage level, etc., it counts the electricity situation of partitions, voltage points, power plants, substations, lines, public transformers and other equipment, as well as the electricity consumption level of high and low voltage users, and displays it from the analysis of industry electricity consumption, abnormal customer electricity consumption, five-star power supply stations, key focus routes, etc.

[0028] In this embodiment, the function of the three-rate data comparison and analysis mining module is to assist in low-voltage transformation, which is to carry out comparison of the "three rates" such as theoretical line loss, statistical line loss and line loss in the same period and relevant data value mining. Through the line loss calculation results, combined with the data such as the three-phase load of the distribution transformer, copper loss, iron loss, and line power supply radius, the distribution network operation is evaluated, the weak points to be optimized are located, the direction of accurate loss reduction is clarified, and the transformation work such as low-voltage cutting and phase adjustment is supported.

[0029] In this embodiment, the edge computing module mainly includes two functions. Function 1: Line loss edge computing. This function deepens the application of ubiquitous Internet of Things technology. It uses intelligent distribution transformer terminals and new-generation intelligent collection terminals to carry out edge computing such as the power sales volume and line loss rate of the substation area on the equipment side with the distribution transformer as the unit. It mainly includes user power edge computing, substation line loss edge computing, and data transmission. Function 2: Data access. This function is based on the return message of the intelligent concentrator, develops data analysis services, analyzes the message format and extracts the required data, and combines the edge computing results with the substation area topology map for display.

[0030] In this embodiment, the advanced application module for line loss classification calculation in the distribution substation mainly includes two functions. Function 1: Topology identification. This function is based on the installed new hardware equipment and automatically identifies the relationship between line transformers and users, as well as the branch topology structure under the substation through HPLC and two-way power frequency communication technology. At the same time, the topology is automatically drawn through graphical components to achieve visual display. Function 2: Line loss classification calculation. This function accurately calculates the line loss at each level, such as "substation total meter to sub-meter", "substation total meter to branch box", "substation total meter to meter box", "branch box to meter box", "branch box to sub-meter", "meter box to sub-meter", etc., quickly locates the loss point in the substation, and uses the edge computing results to directly guide the grassroots to carry out abnormal management and operation and maintenance to eliminate defects, and promote professional collaboration and efficiency improvement in grassroots operation and distribution management, collection and control, fault inspection and repair, line loss management, etc.

[0031] In this embodiment, the synchronous line loss monitoring and management system based on intelligent perception of the present invention also has a work order management function, which includes wiring work order management and substation work order management, which generates a work order for abnormal line loss conditions, dispatches it to subordinate units, and the subordinate units fill in the verification and management results to achieve efficient circulation and processing of work orders;

[0032] The working process of the present invention is:

[0033] 1. When line loss management personnel use this system, they can display line loss indicators by profession according to the (provincial) and municipal company levels, and monitor and manage them from four sections: development, dispatching, operation and inspection, and marketing, according to professional needs, to achieve professional daily monitoring functions and arbitrary interval analysis functions;

[0034] 2. When line loss management personnel use the system to perform intelligent abnormal diagnosis, they can verify whether there are abnormalities in the attribute fields of the files of various types of equipment, such as substations, busbars, transformers, transmission lines, switches, distribution lines, substations, users, metering points, and electric energy meters, through data query; verify whether there are abnormalities in the relationship between each device and other devices according to the actual business logic; compare the consistency of the file data of various types of equipment with the source data, and diagnose inconsistent data;

[0035] 3. When line loss management personnel use the system to compare the three rates, they can compare and analyze the line loss rate and theoretical line loss rate data of the same period of wiring through the corresponding page, and can view the specific details;

[0036] 4. When line loss management personnel use the system to manage work orders, they can manage work orders in wiring or substations, generate work orders by analyzing abnormal line loss conditions, and send them to subordinate units. Subordinate units will fill in the verification and management results to achieve efficient circulation and processing of work orders;

[0037] 5. Line loss management personnel can check the system's business-specific large screen display to view the completion status of each professional indicator of the four-point line loss, indicator trend analysis, line loss fluctuation analysis, and three-rate comparison analysis to carry out abnormal line loss management;

[0038] 6. Line loss management personnel use the edge computing function to display the daily line loss situation of the selected section when the time interval is selected as "day" and to display the hourly line loss situation of the selected section when the time interval is selected as "hour". They can also view the line loss display results of the substation main meter-branch box / meter box. They can also load the line losses at all levels according to the actual situation and use the topology map automatically drawn by the system.

[0039] It should be emphasized that the embodiments of the present invention are illustrative rather than restrictive. Therefore, the present invention includes but is not limited to the embodiments described in the specific implementation modes. Any other implementation modes derived by those skilled in the art based on the technical solutions of the present invention also fall within the scope of protection of the present invention.

Claims

1. A synchronous line loss monitoring and management system based on intelligent perception, characterized by: include: Abnormal intelligent diagnosis module, large screen visualization module, three-rate data comparison and analysis mining module, edge computing module and distribution station area line loss classification calculation advanced application module; The abnormal intelligent diagnosis module is used to diagnose abnormal line and substation line losses, and realize active analysis of high-loss line substations; the large-screen visualization module is used to display the completion of the four-point line loss indicators and the power monitoring analysis; the three-rate data comparison and analysis mining module is used to compare the "three rates" of distribution theoretical line loss, statistical line loss and line loss in the same period to evaluate the operation of the distribution network; the edge computing module is used to carry out edge computing of the same period power sales and substation line loss rate with the distribution transformer as a unit on the equipment side; the distribution substation line loss classification calculation advanced application module is used for topology identification and line loss classification calculation; The abnormal intelligent diagnosis module includes: an archive diagnosis and analysis module, a topology diagnosis and analysis module, a model diagnosis and analysis module, a collection diagnosis and analysis module, a line loss diagnosis and analysis module and an intelligent diagnosis module. The line loss diagnosis and analysis module is used to perform abnormal diagnosis on line and substation line losses, and for high loss and negative loss data, the abnormal causes of power mutation and relationship errors are intelligently diagnosed based on power; the intelligent diagnosis module is used to identify effective abnormal data items through a high loss model to realize active analysis of high loss line substations; The three-rate data comparison and analysis mining module includes: a three-rate data comparison module, a load auxiliary adjustment module, a reactive power auxiliary adjustment module and a new equipment simulation module; the three-rate data comparison module is used to carry out the "three-rate" comparison of theoretical line loss, statistical line loss and line loss in the same period and the relevant data value mining content, and evaluate the distribution network operation status through the line loss calculation results, combined with the data of three-phase load, copper loss, iron loss and line power supply radius of the distribution transformer; The large-screen visualization module includes: a four-point line loss index display module and an electric quantity monitoring and analysis module. The four-point line loss index display module is used to realize the display of the completion status of each professional index of the four-point line loss, index trend analysis, line loss fluctuation analysis, and three-rate comparison analysis; the electric quantity monitoring and analysis module is used to further distinguish the composition of electric quantity, and display it from the analysis of industry electricity consumption, customer abnormal electricity consumption, five-star power supply station, and key focus routes; The edge computing module includes a line loss edge computing module and a data access module. The line loss edge computing module is used to perform edge computing of the power sales volume and the line loss rate of the substation area in the same period on the equipment side with the distribution transformation unit. The data access module is used to return messages based on the intelligent concentrator; The distribution area line loss classification calculation advanced application module includes: a line-transformer relationship automatic identification module, a station-user relationship automatic identification module, a branch topology automatic identification module, a branch box to meter box line loss calculation module, a station area total meter to branch box line loss calculation module and a station area total meter to meter box line loss calculation module; the transformer relationship automatic identification module, the station-user relationship automatic identification module and the branch topology automatic identification module are used to automatically identify the line-transformer relationship and the station-user relationship, as well as the branch topology structure under the station area through HPLC and two-way power frequency communication technology; the branch box to meter box line loss calculation module, the station area total meter to branch box line loss calculation module and the station area total meter to meter box line loss calculation module are used to calculate the line loss at each level and quickly locate the loss point in the station area; The working process of the synchronous line loss monitoring and management system based on intelligent perception is as follows: (1) When line loss management personnel use this system, they can display line loss indicators by profession according to the city company level, and monitor and manage them in four sections: development, dispatching, operation and inspection, and marketing according to professional needs, realizing professional daily monitoring functions and arbitrary interval analysis functions; (2) When line loss management personnel use the system to perform intelligent abnormal diagnosis, they can verify whether there are abnormalities in the attribute fields of the files of various types of equipment, such as substations, busbars, transformers, transmission lines, switches, distribution lines, substations, users, metering points, and electric energy meters, through data query; verify whether there are abnormalities in the relationship between each device and other devices based on the actual business logic; compare the consistency of the file data of various types of equipment with the source data, and diagnose inconsistent data; (3) When line loss management personnel use the system to compare the three rates, they can compare and analyze the line loss rate of the wiring in the same period and the theoretical line loss rate data through the corresponding page, and can view the specific details; (4) When line loss management personnel use the system to manage work orders, they manage work orders in the wiring or substation area, generate work orders by analyzing abnormal line loss conditions, and send them to subordinate units. Subordinate units fill in the verification and management results to achieve efficient circulation and processing of work orders; (5) Line loss management personnel can view the system's business-specific large screen display to view the completion status of each professional indicator of the four-point line loss, indicator trend analysis, line loss fluctuation analysis, and three-rate comparison analysis to carry out abnormal line loss management; (6) Line loss management personnel use the edge computing function to display the daily line loss situation of the selected section when the time interval is selected as "day" and to display the hourly line loss situation of the selected section when the time interval is selected as "hour". They can check the line loss display results of the substation main meter-branch box / meter box. According to the actual situation, the line loss at each level is loaded and the topology map automatically drawn by the system is used.

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