A method, device, equipment and storage medium for detecting power anomaly

Abstract

The present invention discloses a power anomaly detection method, device, equipment, and storage medium, including: analyzing the substation topology of the substation power distribution system through high-speed power line carrier communication to determine the distribution system information of the substation power distribution system; the distribution system information includes the substation terminal connection relationship and the electrical parameters of the substation power equipment in the substation power distribution system; determining the substation line loss and substation line loss rate of the substation power distribution system based on the distribution system information; determining the probability of abnormal power consumption based on the target power consumption data corresponding to the substation power distribution system; and determining whether there is an abnormality in the low-voltage distributed power supply in the substation power distribution system based on the substation line loss, substation line loss rate, and abnormal power consumption probability. This can improve the efficiency of abnormal monitoring of distributed power supplies in low-voltage substations and further promote the intelligent management of substation power distribution systems.

Description

Technical Field

[0001] Embodiments of the present invention relate to the technical field of power distribution systems, and in particular to a power anomaly detection method, apparatus, device, and storage medium. Background Art

[0002] The power line carrier communication network is the foundation of power communication. It can realize intelligent monitoring of low-voltage substation distribution systems, provide operation and maintenance personnel with substation user electricity consumption data, and guide substation users in energy-saving directions, thereby effectively reducing substation line losses. However, when the power line carrier communication network performs intelligent monitoring of low-voltage substations, due to the large number of substations and the complex electricity consumption data of substation users, it is difficult to grasp the regularity of electricity consumption data. Effective monitoring of low-voltage substations requires the participation of a large number of operation and maintenance personnel. Low-voltage substations also lack an effective risk warning mechanism, making it impossible to timely obtain abnormal conditions of distributed power sources in low-voltage substations. Therefore, how to realize automated monitoring of distributed power sources in low-voltage substations, improve the efficiency of abnormal monitoring of distributed power sources in low-voltage substations, and ensure the real-time acquisition of abnormal behavior of power sources in low-voltage substations, is a problem that needs to be solved. Summary of the Invention

[0003] The present invention provides a power anomaly detection method, device, equipment and storage medium, which can realize automatic monitoring of distributed power supplies in low-voltage areas and improve the anomaly monitoring efficiency of distributed power supplies in low-voltage areas.

[0004] According to one aspect of the present invention, a method for detecting power anomaly is provided, comprising:

[0005] Analyzing the substation topology of the substation power distribution system through high-speed power line carrier communication to determine the power distribution system information of the substation power distribution system; the power distribution system information includes the substation terminal connection relationship in the substation power distribution system and the electrical parameters of the substation power equipment;

[0006] Determining the area line loss power and the area line loss rate of the area power distribution system according to the power distribution system information;

[0007] Determining the probability of abnormal power consumption based on target power consumption data corresponding to the power distribution system in the substation area;

[0008] Determine whether there is an abnormality in the low-voltage distributed power supply in the power distribution system of the substation based on the line loss power, the line loss rate of the substation and the probability of abnormal power consumption.

[0009] According to another aspect of the present invention, there is provided a power supply anomaly detection device, the device comprising:

[0010] A power distribution system information determination module is configured to analyze the substation topology of the substation power distribution system through high-speed power line carrier communication to determine the power distribution system information of the substation power distribution system; the power distribution system information includes the substation terminal connection relationship in the substation power distribution system and the electrical parameters of the substation power equipment;

[0011] A substation line loss rate determination module, configured to determine the substation line loss quantity and substation line loss rate of the substation power distribution system according to the power distribution system information;

[0012] An abnormal power consumption probability determination module is used to determine the abnormal power consumption probability based on the target power consumption data corresponding to the power distribution system of the substation;

[0013] The power supply anomaly determination module is used to determine whether there is an abnormality in the low-voltage distributed power supply in the substation power distribution system based on the substation line loss power, substation line loss rate and abnormal power consumption probability.

[0014] According to another aspect of the present invention, an electronic device is provided, comprising:

[0015] at least one processor; and

[0016] a memory communicatively connected to the at least one processor; wherein,

[0017] The memory stores a computer program executable by the at least one processor. The computer program is executed by the at least one processor so that the at least one processor can perform the power supply anomaly detection method according to any embodiment of the present invention.

[0018] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the power supply anomaly detection method according to any embodiment of the present invention when executed.

[0019] The technical solution of the embodiment of the present invention analyzes the substation topology of the substation distribution system through high-speed power line carrier communication to determine the distribution system information of the substation distribution system; the distribution system information includes the substation terminal connection relationship and the electrical parameters of the substation power equipment in the substation distribution system; based on the distribution system information, the substation line loss and substation line loss rate of the substation distribution system are determined; based on the target power consumption data corresponding to the substation distribution system, the probability of abnormal power consumption is determined; based on the substation line loss, substation line loss rate and abnormal power consumption probability, it is determined whether the low-voltage distributed power supply in the substation distribution system is abnormal. The above solution solves the problem that when performing abnormal detection on the distributed power supply of the low-voltage substation, a large number of operation and maintenance personnel are required to effectively monitor the distributed power supply of the low-voltage substation, resulting in low efficiency and accuracy in detecting power supply abnormalities. It realizes automated monitoring of the distributed power supply of the low-voltage substation, improves the abnormal monitoring efficiency of the distributed power supply of the low-voltage substation, ensures the real-time acquisition of abnormal behavior of the low-voltage substation power supply, and further promotes the intelligent management of the substation distribution system.

[0020] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A flowchart of a power anomaly detection method provided in Example 1 of the present invention;

[0023] Figure 2 A flowchart of a power anomaly detection method provided in Embodiment 2 of the present invention;

[0024] Figure 3 A schematic diagram of the structure of a power anomaly detection device provided in Embodiment 3 of the present invention;

[0025] Figure 4 This is a structural diagram of an electronic device provided in Example 4 of the present invention. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0027] It should be noted that the terms "object" and "target" in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "etc." and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or that are inherent to these processes, methods, products or devices.

[0028] Example 1

[0029] Figure 1 A flowchart of a power anomaly detection method is provided for the first embodiment of the present invention. This embodiment can be applied to detect the power supply in the substation power distribution system to determine whether there is a power anomaly. The method can be executed by a power anomaly detection device, which can be implemented in the form of hardware and / or software, and can be configured in an electronic device. Figure 1 As shown, the method includes:

[0030] S110: Analyze the substation topology of the substation power distribution system through high-speed power line carrier communication to determine the power distribution system information of the substation power distribution system.

[0031] The distribution system information includes the substation terminal connection relationship in the substation distribution system and the electrical parameters of the substation power equipment.

[0032] Among them, high-speed power line carrier communication, also known as low-voltage high-speed power line carrier communication, referred to as HPLC, is a power line carrier communication technology, mostly used in local communications of low-voltage substation electricity consumption information collection systems. Substation distribution system refers to the distribution system of low-voltage substations. In the power system, substation refers to the power supply range or area of ​​a transformer. Substation terminals include: intelligent distribution terminals, low-voltage sensing terminals and terminal sensing terminals. Substation topology refers to the topological structure of the equipment connection relationship of substation power equipment. Substation topology describes how to physically connect substation power equipment with cables. Electrical parameters refer to the parameters of a single power device, such as rated power, rated voltage, rated current and operating temperature.

[0033] Specifically, high-speed power line carrier communication is used to determine the intelligent distribution transformer terminal, low-voltage sensing terminal, and terminal sensing terminal corresponding to the substation area topology. The intelligent distribution transformer terminal is installed at the transformer outlet, the low-voltage sensing terminal is installed at the line branch end, and the terminal sensing terminal is installed at the meter box end. Based on the intelligent distribution transformer terminal, low-voltage sensing terminal, and terminal sensing terminal corresponding to the substation area topology, the cable connection relationship and electrical parameters of the substation area power equipment in the substation area distribution system can be determined. The substation terminal connection relationship is determined based on the cable connection relationship of the substation area power equipment.

[0034] S120. Determine the substation line loss power and substation line loss rate of the substation distribution system according to the distribution system information.

[0035] Among them, line loss refers to all the electric energy losses from the primary side of the main transformer of the power plant to the user's electric energy meter.

[0036] Specifically, the system power supply of the substation distribution system is determined based on the substation terminal connection relationship and the electrical parameters of the substation power equipment in the distribution system information. The system power sales of the substation distribution system are also determined based on the power sales of the substation distribution system and the power consumption of the substation distribution system's own non-power production departments. The system power sales are the sum of the power sales of the substation distribution system and the power consumption of the substation distribution system's own non-power production departments. The difference between the system power supply and the system power sales is used as the substation line loss. The ratio of the substation line loss to the system power supply is used as the substation line loss rate.

[0037] S130. Determine the probability of abnormal power consumption based on the target power consumption data corresponding to the substation power distribution system.

[0038] The target electricity consumption data corresponding to the substation power distribution system refers to the electricity consumption data generated by the electricity users corresponding to the substation power distribution system.

[0039] Specifically, target electricity consumption data generated by all electricity users corresponding to the distribution system in the substation area during their electricity consumption is obtained, the target electricity consumption data is analyzed, and abnormal electricity consumption data within the target electricity consumption data is determined based on the analysis results. The ratio between the number of abnormal data points in the abnormal electricity consumption data and the target number of target data points is used as the abnormal electricity consumption probability.

[0040] Exemplarily, a method for determining the probability of abnormal power consumption may be: inputting the target power consumption data corresponding to the substation power distribution system into the abnormal behavior analysis model, and determining the probability of abnormal power consumption corresponding to the target power consumption data based on the model output data of the abnormal power consumption behavior analysis model; the abnormal power consumption behavior analysis model is obtained by training a convolutional neural network through historical power consumption data and historical power consumption behavior corresponding to the historical power consumption data.

[0041] It can be understood that by analyzing the target electricity consumption data generated by electricity users corresponding to the substation power distribution system according to the abnormal behavior analysis model, the abnormal electricity consumption probability corresponding to the abnormal electricity consumption behavior of the electricity users can be determined, and the target electricity consumption data can be automatically analyzed to determine the abnormal electricity consumption probability, thereby improving the efficiency and accuracy of obtaining the abnormal electricity consumption probability.

[0042] S140. Determine whether there is an abnormality in the low-voltage distributed power supply in the power distribution system of the substation based on the line loss power, the line loss rate of the substation and the probability of abnormal power consumption.

[0043] Among them, low-voltage distributed power supply refers to the power supply distributed at the user end, connected to the 35kV and below voltage level power grid, and mainly consumed locally.

[0044] Exemplarily, a method for determining whether there is an abnormality in the low-voltage distributed power supply in the substation distribution system may be: determining whether there is an abnormality in the substation line loss power and the power loss threshold based on the substation line loss power; determining whether there is an abnormality in the substation line loss rate based on the substation line loss rate and the line loss rate threshold; determining whether the abnormal power consumption probability can cause a fault effect on the low-voltage distributed power supply in the substation distribution system based on the abnormal power consumption probability and the abnormal power consumption rate threshold; if there is an abnormality in the substation line loss power, the substation line loss rate, or the abnormal power consumption probability can cause a fault effect on the low-voltage distributed power supply in the substation distribution system, then it is determined that there is an abnormality in the low-voltage distributed power supply in the substation distribution system.

[0045] Specifically, the substation topology of the substation distribution system is analyzed through high-speed power line carrier communication to determine the corresponding topology type of the substation topology. Topology types include radial topology, tree topology, and ring topology. In areas with low power supply reliability requirements, the substation topology is often a radial or tree topology; in areas with high power supply reliability requirements, the substation topology is often a ring topology with backup lines. Based on the substation topology type, the power supply reliability requirements of the area corresponding to the substation distribution system can be determined. Areas with high power supply reliability requirements and areas with low power supply reliability requirements have different corresponding power loss thresholds, line loss rate thresholds, and abnormal power usage rate thresholds. The power loss threshold, line loss rate threshold, and abnormal power usage rate threshold are determined based on the power supply reliability requirements.

[0046] Furthermore, based on the substation line loss power and the power loss threshold, determine whether there is an abnormality in the substation line loss power; based on the substation line loss rate and the line loss rate threshold, determine whether there is an abnormality in the substation line loss rate; based on the abnormal power consumption probability and the abnormal power consumption rate threshold, determine whether the abnormal power consumption probability can cause a fault impact on the low-voltage distributed power supply in the substation distribution system; if there is an abnormality in the substation line loss power, the substation line loss rate is abnormal, or the abnormal power consumption probability can cause a fault impact on the low-voltage distributed power supply in the substation distribution system, then it is determined that there is an abnormality in the low-voltage distributed power supply in the substation distribution system.

[0047] It can be understood that the above scheme determines whether there is an abnormality in the low-voltage distributed power supply in the substation distribution system through the substation line loss power, substation line loss rate, abnormal power consumption probability, power loss threshold, line loss rate threshold and abnormal power consumption rate threshold. It comprehensively considers the influencing factors of the low-voltage distributed power supply and can improve the detection accuracy of power supply abnormality detection.

[0048] The technical solution provided in this embodiment analyzes the substation topology of the substation distribution system through high-speed power line carrier communication to determine the distribution system information of the substation distribution system; the distribution system information includes the substation terminal connection relationship and the electrical parameters of the substation power equipment in the substation distribution system; based on the distribution system information, the substation line loss and substation line loss rate of the substation distribution system are determined; based on the target power consumption data corresponding to the substation distribution system, the probability of abnormal power consumption is determined; based on the substation line loss, substation line loss rate and abnormal power consumption probability, it is determined whether there is an abnormality in the low-voltage distributed power supply in the substation distribution system. The above solution solves the problem that when performing abnormal detection on the distributed power supply of the low-voltage substation, a large number of operation and maintenance personnel are required to effectively monitor the distributed power supply of the low-voltage substation, resulting in low efficiency and accuracy in detecting power supply abnormalities. It realizes automated monitoring of the distributed power supply of the low-voltage substation, improves the abnormal monitoring efficiency of the distributed power supply of the low-voltage substation, ensures the real-time acquisition of abnormal behavior of the low-voltage substation power supply, and further promotes the intelligent management of the substation distribution system.

[0049] Example 2

[0050] Figure 2 This is a flowchart of a power anomaly detection method provided in the second embodiment of the present invention. This embodiment is optimized based on the above embodiment and provides a preferred implementation method for determining the line loss power and line loss rate of the distribution system in the distribution area based on the distribution system information. Specifically, Figure 2 As shown, the method includes:

[0051] S210: Analyze the substation topology of the substation power distribution system through high-speed power line carrier communication to determine the power distribution system information of the substation power distribution system.

[0052] The distribution system information includes the substation terminal connection relationship in the substation distribution system and the electrical parameters of the substation power equipment.

[0053] S220: Determine the system power supply of the substation distribution system according to the power distribution system information, and obtain the system power sales amount of the substation distribution system according to the electric energy meter.

[0054] Exemplarily, a method for determining the system power supply of a substation distribution system may be: determining the power plant power, system output power and system input power of the substation distribution system based on the distribution system information; determining the system residual power of the substation distribution system based on the difference between the power plant power and the system output power; and determining the system power supply of the substation distribution system based on the sum of the system residual power and the system input power.

[0055] Among them, the system output current refers to the output power of the substation distribution system, and the system input power refers to the power input to the substation distribution system.

[0056] Specifically, the power plant electricity, system output electricity, and system input electricity of the substation distribution system are determined based on the substation terminal connection relationship and the electrical parameters of the substation power equipment in the distribution system information. The power sold by the substation distribution system and the power consumption of the non-power production department of the substation distribution system are obtained according to the electric energy meter. The sum of the power sold by the substation distribution system and the power consumption of the non-power production department of the substation distribution system is used as the system power sold by the substation distribution system. The difference between the power plant power and the system output power is used as the system surplus power of the substation distribution system. The sum of the system surplus power and the system input power is used as the system power supply of the substation distribution system.

[0057] It can be understood that calculating the system power supply of the substation distribution system based on the power plant power, system output power and system input power of the substation distribution system can improve the calculation accuracy of the system power supply.

[0058] S230: Determine the line loss of the substation power distribution system according to the system power supply and system power sales.

[0059] Specifically, the difference between the system power supply and the system power sales is used as the substation line loss power of the substation distribution system.

[0060] S240: Determine the substation line loss rate of the substation distribution system based on the system power supply and distribution system information.

[0061] Exemplarily, a method for determining the substation line loss rate of a substation power distribution system may be: determining the normal metered power consumption, abnormal metered power consumption, normal amount of substation power consumption information collection, and abnormal amount of substation power consumption information collection of the substation power distribution system based on the power distribution system information; and determining the substation line loss rate of the substation power distribution system based on the system power supply and abnormal metered power consumption.

[0062] Abnormal metered electricity usage for a distribution system refers to abnormal electricity usage collected from users corresponding to the distribution system. Abnormal metered electricity usage includes normal electricity usage collected under abnormal collection conditions, abnormal electricity usage collected under normal collection conditions, and abnormal electricity usage collected under abnormal collection conditions.

[0063] The calculation formula for the line loss rate of the distribution system is shown in formula (1):

[0064]

[0065] Among them, r is the line loss rate of the power distribution system in the substation; w0 is the power supply of the system; w hjis the total electricity consumption of the electricity users corresponding to the substation power distribution system, j is an integer; Δw1 is the normal electricity consumption collected under abnormal collection conditions; Δw2 is the abnormal electricity consumption collected under normal collection conditions; Δw3 is the abnormal electricity consumption collected under abnormal collection conditions.

[0066] The above scheme takes into account the impact of normal metered electricity consumption, abnormal metered electricity consumption, normal amount of electricity consumption information collected in the substation and abnormal amount of electricity consumption information collected in the substation on the substation line loss rate when determining the substation line loss rate of the substation power distribution system, which can improve the accuracy of the obtained substation line loss rate.

[0067] S250. Determine the probability of abnormal power consumption based on the target power consumption data corresponding to the substation power distribution system.

[0068] S260. Determine whether there is an abnormality in the low-voltage distributed power supply in the power distribution system of the substation based on the line loss power, the line loss rate of the substation and the probability of abnormal power consumption.

[0069] The technical solution of this embodiment analyzes the substation topology of the substation distribution system through high-speed power line carrier communication to determine the distribution system information of the substation distribution system; the distribution system information includes the substation terminal connection relationship and the electrical parameters of the substation power equipment in the substation distribution system; according to the distribution system information, the system power supply of the substation distribution system is determined, and the system power sales of the substation distribution system is obtained according to the electric energy meter; according to the system power supply and the system power sales, the substation line loss of the substation distribution system is determined; according to the system power supply and the distribution system information, the substation line loss rate of the substation distribution system is determined; according to the target power consumption data corresponding to the substation distribution system, the probability of abnormal power consumption is determined; according to the substation line loss, the substation line loss rate and the probability of abnormal power consumption, it is determined whether the low-voltage distributed power supply in the substation distribution system is abnormal. The above solution can improve the calculation accuracy of the substation line loss and the substation line loss rate of the substation distribution system, thereby improving the accuracy of judging whether the low-voltage distributed power supply in the substation distribution system is abnormal.

[0070] Example 3

[0071] Figure 3 This is a schematic diagram of the structure of a power anomaly detection device provided by the third embodiment of the present invention. This embodiment can be applied to detect the power supply in the power distribution system of the substation to determine whether there is a power anomaly. Figure 3 As shown, the power anomaly detection device includes: a power distribution system information determination module 310, a substation line loss rate determination module 320, an abnormal power consumption probability determination module 330 and a power anomaly determination module 340.

[0072] The power distribution system information determination module 310 is configured to analyze the substation topology of the substation power distribution system through high-speed power line carrier communication to determine the power distribution system information of the substation power distribution system; the power distribution system information includes the substation terminal connection relationship in the substation power distribution system and the electrical parameters of the substation power equipment;

[0073] The substation line loss rate determination module 320 is used to determine the substation line loss power and substation line loss rate of the substation power distribution system based on the power distribution system information;

[0074] The abnormal power consumption probability determination module 330 is used to determine the abnormal power consumption probability based on the target power consumption data corresponding to the power distribution system of the substation;

[0075] The power anomaly determination module 340 is used to determine whether there is an anomaly in the low-voltage distributed power supply in the substation power distribution system based on the substation line loss power, the substation line loss rate and the probability of abnormal power consumption.

[0076] The technical solution provided in this embodiment analyzes the substation topology of the substation distribution system through high-speed power line carrier communication to determine the distribution system information of the substation distribution system; the distribution system information includes the substation terminal connection relationship and the electrical parameters of the substation power equipment in the substation distribution system; based on the distribution system information, the substation line loss and substation line loss rate of the substation distribution system are determined; based on the target power consumption data corresponding to the substation distribution system, the probability of abnormal power consumption is determined; based on the substation line loss, substation line loss rate and abnormal power consumption probability, it is determined whether there is an abnormality in the low-voltage distributed power supply in the substation distribution system. The above solution solves the problem that when performing abnormal detection on the distributed power supply of the low-voltage substation, a large number of operation and maintenance personnel are required to effectively monitor the distributed power supply of the low-voltage substation, resulting in low efficiency and accuracy in detecting power supply abnormalities. It realizes automated monitoring of the distributed power supply of the low-voltage substation, improves the abnormal monitoring efficiency of the distributed power supply of the low-voltage substation, ensures the real-time acquisition of abnormal behavior of the low-voltage substation power supply, and further promotes the intelligent management of the substation distribution system.

[0077] Exemplarily, the station area line loss rate determination module 320 further includes:

[0078] The system power supply determination unit is used to determine the system power supply of the substation distribution system according to the power distribution system information, and obtain the system power sales amount of the substation distribution system according to the electric energy meter;

[0079] The substation line loss power determination unit is used to determine the substation line loss power of the substation distribution system based on the system power supply and system power sales;

[0080] The substation line loss rate determination unit is used to determine the substation line loss rate of the substation distribution system according to the system power supply and distribution system information.

[0081] Exemplarily, the system power supply amount determination unit is specifically configured to:

[0082] Determine the power plant capacity, system output capacity, and system input capacity of the distribution system in the substation based on the distribution system information;

[0083] Determine the remaining power of the distribution system in the substation based on the difference between the power output of the power plant and the power output of the system;

[0084] The system power supply of the substation distribution system is determined based on the sum of the system's remaining power and the system's input power.

[0085] Exemplarily, the area line loss rate determining unit is specifically configured to:

[0086] Based on the power distribution system information, determine the normal metered power consumption, abnormal metered power consumption, normal amount of power consumption information collected in the substation, and abnormal amount of power consumption information collected in the substation;

[0087] Determine the substation line loss rate of the substation distribution system based on the system power supply and abnormal metered power consumption.

[0088] Exemplarily, the abnormal power usage probability determination module 330 is specifically configured to:

[0089] The target power consumption data corresponding to the substation power distribution system is input into the abnormal behavior analysis model, and the abnormal power consumption probability corresponding to the target power consumption data is determined based on the model output data of the abnormal power consumption behavior analysis model; the abnormal power consumption behavior analysis model is obtained by training the convolutional neural network through historical power consumption data and the historical power consumption behavior corresponding to the historical power consumption data.

[0090] Exemplarily, the power anomaly determination module 340 is specifically configured to:

[0091] Determine whether there is an abnormality in the line loss of the substation area based on the line loss power and power loss threshold;

[0092] Determine whether the line loss rate of the substation area is abnormal based on the line loss rate and line loss rate threshold;

[0093] According to the abnormal power consumption probability and the abnormal power consumption rate threshold, determine whether the abnormal power consumption probability can cause a fault impact on the low-voltage distributed power supply in the substation distribution system;

[0094] If there is an abnormality in the line loss power in the substation, the line loss rate in the substation, or the probability of abnormal power consumption can cause a fault on the low-voltage distributed power supply in the substation distribution system, it is determined that there is an abnormality in the low-voltage distributed power supply in the substation distribution system.

[0095] The power anomaly detection device provided in this embodiment can be applied to the power anomaly detection method provided in any of the above embodiments, and has corresponding functions and beneficial effects.

[0096] Example 4

[0097] Figure 4 A schematic diagram of the structure of an electronic device 10 that can be used to implement an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or claimed herein.

[0098] like Figure 4 As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., which is communicatively connected to the at least one processor 11. The memory stores a computer program that can be executed by the at least one processor. The processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 into the random access memory (RAM) 13. Various programs and data required for the operation of the electronic device 10 can also be stored in the RAM 13. The processor 11, ROM 12, and RAM 13 are connected to each other via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0099] Multiple components in the electronic device 10 are connected to the I / O interface 15, including an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a magnetic disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices via a computer network such as the Internet and / or various telecommunication networks.

[0100] The processor 11 can be any general-purpose and / or specialized processing component with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various specialized artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any other suitable processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as the power anomaly detection method.

[0101] In some embodiments, the power anomaly detection method may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on electronic device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the power anomaly detection method described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform the power anomaly detection method in any other appropriate manner (e.g., via firmware).

[0102] Various embodiments of the systems and techniques described herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), system-on-chip systems (SOCs), programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include being implemented in one or more computer programs that are executable and / or interpreted on a programmable system that includes at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0103] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when the computer program is executed by the processor, the functions / operations specified in the flowcharts and / or block diagrams are implemented. The computer program may be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0104] In the context of the present invention, computer-readable storage media can be tangible media that can contain or store a computer program for use with an instruction execution system, device or equipment or used in combination with an instruction execution system, device or equipment. Computer-readable storage media can include but are not limited to electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, computer-readable storage media can be machine-readable signal media. More specific examples of machine-readable storage media can include electrical connections based on one or more lines, portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), optical fibers, portable compact disk read-only memories (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0105] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0106] The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0107] A computing system may include clients and servers. The clients and servers are typically remote from each other and typically interact via a communication network. This client-server relationship arises through computer programs running on the respective computers, creating a client-server relationship. The server may be a cloud server, also known as a cloud computing server or cloud host. This server is a hosting product within the cloud computing service ecosystem that addresses the management difficulties and limited scalability of traditional physical hosting and VPS services.

[0108] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved. This is not limited herein.

[0109] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A power supply anomaly detection method, characterized in that: include: Analyzing the topology of the power distribution system in the substation area through high-speed power line carrier communication to determine the power distribution system information of the power distribution system in the substation area; The power distribution system information includes the connection relationship of the substation terminals in the substation power distribution system and the electrical parameters of the substation power equipment; Determining the area line loss power and the area line loss rate of the area power distribution system according to the power distribution system information; Determining the probability of abnormal power consumption based on target power consumption data corresponding to the power distribution system in the substation area; Determine whether there is an abnormality in the low-voltage distributed power supply in the power distribution system of the substation based on the line loss power, the line loss rate and the probability of abnormal power consumption in the substation area; Determining whether there is an abnormality in the low-voltage distributed power supply in the power distribution system of the substation based on the substation line loss power, the substation line loss rate, and the abnormal power consumption probability includes: Determining whether the line loss power in the substation area is abnormal based on the line loss power in the substation area and the power loss threshold; Determining whether the line loss rate of the substation area is abnormal based on the line loss rate of the substation area and the line loss rate threshold; Determining, based on the abnormal power usage probability and the abnormal power usage rate threshold, whether the abnormal power usage probability is capable of causing a fault impact on the low-voltage distributed power supply in the substation power distribution system; If there is an abnormality in the line loss power in the substation, an abnormality in the line loss rate in the substation, and the probability of abnormal power consumption can cause a fault on the low-voltage distributed power supply in the substation power distribution system, it is determined that there is an abnormality in the low-voltage distributed power supply in the substation power distribution system.

2. The method according to claim 1, characterized in that Determining, based on the power distribution system information, the substation line loss quantity and the substation line loss rate of the substation power distribution system, including: Determine the system power supply of the substation power distribution system according to the power distribution system information, and obtain the system power sales amount of the substation power distribution system according to the electric energy meter; Determining the area line loss of the area power distribution system according to the system power supply and the system power sales; Determine the substation line loss rate of the substation power distribution system according to the system power supply and the power distribution system information.

3. The method according to claim 2, characterized in that Determining the system power supply of the substation power distribution system according to the power distribution system information includes: Determine the power plant power, system output power, and system input power of the substation power distribution system according to the power distribution system information; Determining the remaining power of the power distribution system in the substation according to the difference between the power output of the power plant and the power output of the system; The system power supply capacity of the substation power distribution system is determined according to the sum of the system remaining power and the system input power.

4. The method according to claim 2, characterized in that Determining, based on the system power supply and the power distribution system information, a substation line loss rate of the substation power distribution system, including: Determine, based on the power distribution system information, the normal metered power consumption, abnormal metered power consumption, normal amount of power consumption information collected in the substation, and abnormal amount of power consumption information collected in the substation; The substation line loss rate of the substation power distribution system is determined based on the system power supply and abnormal metered power consumption.

5. The method according to claim 1, wherein Determining the probability of abnormal power consumption based on target power consumption data corresponding to the power distribution system in the substation area includes: The target power consumption data corresponding to the substation power distribution system is input into the abnormal behavior analysis model, and the abnormal power consumption probability corresponding to the target power consumption data is determined based on the model output data of the abnormal power consumption behavior analysis model; the abnormal power consumption behavior analysis model is obtained by training a convolutional neural network through historical power consumption data and historical power consumption behavior corresponding to the historical power consumption data.

6. A power supply anomaly detection device, characterized in that: include: A power distribution system information determination module is used to analyze the substation topology of the substation power distribution system through high-speed power line carrier communication to determine the power distribution system information of the substation power distribution system; The power distribution system information includes the connection relationship of the substation terminals in the substation power distribution system and the electrical parameters of the substation power equipment; A substation line loss rate determination module, configured to determine the substation line loss quantity and substation line loss rate of the substation power distribution system according to the power distribution system information; An abnormal power consumption probability determination module is used to determine the abnormal power consumption probability based on the target power consumption data corresponding to the power distribution system of the substation; A power supply anomaly determination module is used to determine whether there is an abnormality in the low-voltage distributed power supply in the power distribution system of the substation based on the line loss power of the substation, the line loss rate of the substation and the probability of abnormal power consumption; The power anomaly determination module is specifically used to: Determine whether there is an abnormality in the line loss of the substation area based on the line loss power and power loss threshold; Determine whether the line loss rate of the substation area is abnormal based on the line loss rate and line loss rate threshold; According to the abnormal power consumption probability and the abnormal power consumption rate threshold, determine whether the abnormal power consumption probability can cause a fault impact on the low-voltage distributed power supply in the substation distribution system; If there is an abnormality in the line loss power in the substation, the line loss rate in the substation, and the probability of abnormal power consumption can cause a fault on the low-voltage distributed power supply in the substation distribution system, it is determined that there is an abnormality in the low-voltage distributed power supply in the substation distribution system.

7. The device according to claim 6, characterized in that The module for determining the line loss rate of the substation area includes: A system power supply determination unit, configured to determine the system power supply of the substation power distribution system according to the power distribution system information, and obtain the system power sales amount of the substation power distribution system according to the electric energy meter; A substation line loss power determination unit, configured to determine the substation line loss power of the substation power distribution system according to the system power supply and the system power sales; The substation line loss rate determining unit is used to determine the substation line loss rate of the substation power distribution system according to the system power supply and the distribution system information.

8. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor. The computer program is executed by the at least one processor so that the at least one processor can perform the power supply anomaly detection method according to any one of claims 1 to 5.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the power supply anomaly detection method according to any one of claims 1 to 5 when executed.

Images