Distributed power generation system fault detection and fault tolerance method and device

Abstract

The present application discloses a method and device for fault detection and fault tolerance of a distributed power generation system, wherein the method includes: clustering each distributed power generation device based on the location information and weather information of each distributed power generation device to obtain multiple first device clustering clusters; obtaining the actual value of the power generation of the target power generation device; obtaining the actual value of the power generation of each distributed power generation device in each first device clustering cluster where the target power generation device is located; determining the estimated power generation value of the target power generation device based on the actual value of the power generation of each distributed power generation device; if the actual value of the power generation of the target power generation device is less than a preset ratio of the estimated power generation value of the target power generation device, the target power generation device is determined as a faulty power generation device; and at least part of the multiple mobile energy storage devices is determined as multiple target mobile energy storage devices connected to the target power grid. The present application can improve the accuracy and fault tolerance of the distributed power generation system.

Description

Technical Field

[0001] The present application relates to the field of electric power technology, and in particular to a method and device for fault detection and fault tolerance of a distributed power generation system. Background Art

[0002] The current power supply system in the world is a centralized single power supply system with large units, large power grids and high voltage as its main features. Although 90% of the world's power load is supplied by this centralized single large power grid, today's society has increasingly higher requirements for the quality, safety and reliability of energy and power supply. Large power grids can no longer meet these requirements due to their own defects. The disturbance caused by any failure in the large power grid will have a significant impact on the entire power grid. In severe cases, it may cause large-scale power outages or even the collapse of the entire network, resulting in catastrophic consequences. In addition, the centralized large power grid cannot track the changes in power load, and the cost of building power plants for short-term peak loads is huge, and the economic benefits are also very low.

[0003] Depending on the primary energy used, distributed generation can be divided into distributed generation technology based on fossil energy, distributed generation technology based on renewable energy, and hybrid distributed generation technology.

[0004] The first classification

[0005] (1) Distributed power generation technology based on fossil energy mainly consists of the following three technologies: ① Reciprocating engine technology: The reciprocating engine used for distributed power generation adopts a four-stroke ignition or compression ignition type, and uses gasoline or diesel as fuel. It is currently the most widely used distributed power generation method. However, this method will cause an impact on the environment. Through its technical improvements, the emission pollution of noise and exhaust gas has been greatly reduced. ② Micro gas turbine technology: Micro gas turbine refers to an ultra-small gas turbine with a power of less than hundreds of kilowatts and uses natural gas, methane, gasoline, and diesel as fuel. However, compared with other existing power generation technologies, micro gas turbines are less efficient. The efficiency of full-load operation is only 30%, and at half load, its efficiency is only 10% to 15%. Therefore, household combined heat and power is often used to utilize the waste heat energy of the equipment to improve its efficiency. In 2012, foreign countries have entered the demonstration stage. Its key technologies are mainly high-speed bearings, high-temperature materials, and component processing. ③ Fuel cell technology: A fuel cell is an electrochemical device that directly converts chemical energy into direct current electrical energy under isothermal conditions. When a fuel cell is working, it does not require combustion and does not pollute the environment. Its electrical energy is obtained through an electrochemical process. A hydrogen-rich fuel passes through the anode, and air passes through the cathode, and the two substances are separated by an electrolyte. In the process of obtaining electrical energy, some by-products are only heat, water, and carbon dioxide. Hydrogen fuel can be generated from various carbon and hydrogen sources through a steam reforming process or an oxidation reaction under pressure. Therefore, it is a very promising clean and efficient way of generating electricity, and is called the distributed power source of the 21st century.

[0006] The second classification

[0007] (2) Distributed power generation technology based on renewable energy mainly consists of the following technologies: ① Solar photovoltaic power generation technology: Solar photovoltaic power generation technology directly converts solar energy into electrical energy using the photoelectric effect of semiconductor materials. Photovoltaic power generation has the advantages of not consuming fuel, not being restricted by geographical location, flexible in scale, pollution-free, safe and reliable, and simple to maintain. However, the cost of this distributed power generation technology is very high, so at this stage, solar power generation technology still needs to be improved to reduce costs and be suitable for widespread application. (2) Wind power generation technology is a power generation technology that converts wind energy into electrical energy. It can be divided into two categories: independent and grid-connected operation. The former is a micro or small wind turbine with a capacity of 100W to 10kW, and the latter usually has a capacity of more than 150kW. Wind power generation technology has advanced rapidly, and the technology with a single unit capacity of less than 2MW is already very mature.

[0008] The third classification

[0009] (3) Hybrid distributed generation technology usually refers to the combination of two or more distributed generation technologies and energy storage devices to form a composite power generation system. Various forms of composite power generation systems have been proposed, one of the important directions is the multi-objective distributed energy supply system of trigeneration of heat, electricity and cooling, usually referred to as a distributed energy supply system. While producing electricity, it can also provide heat energy or meet the needs of heating, cooling and other aspects at the same time. Compared with a simple power supply system, a distributed energy supply system can greatly improve energy utilization, reduce environmental pollution, and improve the thermal economy of the system.

[0010] The existing distributed power generation system has low fault detection accuracy and low fault tolerance. Summary of the invention

[0011] The embodiments of the present application provide a method and device for fault detection and fault tolerance of a distributed power generation system, which can improve the accuracy and fault tolerance of the distributed power generation system.

[0012] In a first aspect, the present application provides a distributed power generation system fault detection and fault tolerance method, wherein the distributed power generation system is used to supply power to a target power grid, wherein the distributed power generation system includes a plurality of distributed power generation devices and a plurality of mobile energy storage devices, and wherein the distributed power generation system fault detection and fault tolerance method includes:

[0013] Obtaining location information and weather information of each of the distributed power generation devices;

[0014] Clustering each of the distributed power generation devices based on location information and weather information of each of the distributed power generation devices to obtain a plurality of first device clusters, each of which includes a plurality of the distributed power generation devices;

[0015] Determine each of the distributed power generation equipment as a target power generation equipment;

[0016] Obtaining a true value of the power generation power of the target power generation equipment;

[0017] Acquire the actual value of power generation of each of the distributed power generation devices in each of the first device clusters where the target power generation device is located;

[0018] Determine the estimated power generation value of the target power generation device based on the actual power generation value of each of the distributed power generation devices;

[0019] If the actual value of the power generation of the target power generation equipment is less than a preset ratio of the estimated value of the power generation of the target power generation equipment, the target power generation equipment is determined as a faulty power generation equipment;

[0020] Determine at least some of the multiple mobile energy storage devices as multiple target mobile energy storage devices;

[0021] A plurality of the target mobile energy storage devices are connected to a target power grid to supply power to the target power grid.

[0022] Optionally, determining at least some of the multiple mobile energy storage devices as multiple target mobile energy storage devices includes:

[0023] Obtaining the number of times each mobile energy storage device has been charged and discharged, the time interval since the last charge and discharge, and the remaining power;

[0024] Determine the candidate priority based on the number of times the mobile energy storage device has been charged and discharged, the time interval since the last charge and discharge, and the remaining power;

[0025] The plurality of mobile energy storage devices having the highest candidate priority are determined as the plurality of target mobile energy storage devices.

[0026] Optionally, the determining the estimated power generation value of the target power generation device based on the actual power generation value of each of the distributed power generation devices includes:

[0027] Obtaining the real value of the power generation of each of the distributed power generation devices;

[0028] Acquire a first target distance between each of the distributed power generation equipment and the target power generation equipment;

[0029] Determine a target weight corresponding to each of the distributed power generation devices based on the first target distance corresponding to each of the distributed power generation devices, wherein the larger the first target distance is, the larger the target weight is;

[0030] The estimated value of the power generation power of the target power generation device is determined based on the target weight corresponding to each of the distributed power generation devices and the actual value of the power generation power of each of the distributed power generation devices.

[0031] Optionally, determining the estimated power generation value of the target power generation device based on the target weight corresponding to each of the distributed power generation devices and the actual power generation value of each of the distributed power generation devices includes:

[0032] Acquire multiple candidate power generation devices from each of the distributed power generation devices;

[0033] Based on the weighted sum of the target weights of the plurality of candidate power generation equipment and the actual power generation values ​​of the candidate power generation equipment, the power generation power estimation value of the target power generation equipment is obtained.

[0034] In a second aspect, the present application provides a distributed power generation system fault detection and fault tolerance device, including:

[0035] A first acquisition module, used to acquire location information and weather information of each of the distributed power generation devices;

[0036] A clustering module, configured to cluster each of the distributed power generation devices based on location information and weather information of each of the distributed power generation devices to obtain a plurality of first device clusters, each of which includes a plurality of the distributed power generation devices;

[0037] A first determination module, used to determine each of the distributed power generation equipment as a target power generation equipment;

[0038] A second acquisition module is used to obtain the real value of the power generation power of the target power generation equipment;

[0039] A third acquisition module is used to acquire the actual value of the power generation power of each of the distributed power generation devices in each of the first device clusters where the target power generation device is located;

[0040] A second determination module is used to determine the estimated power generation value of the target power generation device based on the actual power generation value of each of the distributed power generation devices;

[0041] A third determination module is used to determine the target power generation equipment as a faulty power generation equipment if the actual power generation value of the target power generation equipment is less than a preset ratio of the estimated power generation value of the target power generation equipment;

[0042] A fourth determination module, configured to determine at least some of the plurality of mobile energy storage devices as a plurality of target mobile energy storage devices;

[0043] The access module is used to connect the plurality of target mobile energy storage devices to a target power grid to supply power to the target power grid.

[0044] Optionally, determining at least some of the multiple mobile energy storage devices as multiple target mobile energy storage devices includes:

[0045] Obtaining the number of times each mobile energy storage device has been charged and discharged, the time interval since the last charge and discharge, and the remaining power;

[0046] Determine the candidate priority based on the number of times the mobile energy storage device has been charged and discharged, the time interval since the last charge and discharge, and the remaining power;

[0047] The plurality of mobile energy storage devices having the highest candidate priority are determined as the plurality of target mobile energy storage devices.

[0048] Optionally, the determining the estimated power generation value of the target power generation device based on the actual power generation value of each of the distributed power generation devices includes:

[0049] Obtaining the real value of the power generation of each of the distributed power generation devices;

[0050] Acquire a first target distance between each of the distributed power generation equipment and the target power generation equipment;

[0051] Determine a target weight corresponding to each of the distributed power generation devices based on the first target distance corresponding to each of the distributed power generation devices, wherein the larger the first target distance is, the larger the target weight is;

[0052] The estimated value of the power generation power of the target power generation device is determined based on the target weight corresponding to each of the distributed power generation devices and the actual value of the power generation power of each of the distributed power generation devices.

[0053] Optionally, determining the estimated power generation value of the target power generation device based on the target weight corresponding to each of the distributed power generation devices and the actual power generation value of each of the distributed power generation devices includes:

[0054] Acquire multiple candidate power generation devices from each of the distributed power generation devices;

[0055] Based on the weighted sum of the target weights of the plurality of candidate power generation equipment and the actual power generation values ​​of the candidate power generation equipment, the power generation power estimation value of the target power generation equipment is obtained.

[0056] In a third aspect, the electronic device provided in the present application includes a memory and a processor, the memory stores a computer program, and the processor is used to run the computer program in the memory to implement the steps in the distributed power generation system fault detection and fault tolerance method provided in the present application.

[0057] In a fourth aspect, the computer-readable storage medium provided in the present application stores a plurality of instructions, which are suitable for loading by a processor to implement the steps in the distributed power generation system fault detection and fault tolerance method provided in the present application.

[0058] In a fifth aspect, the computer program product provided in the present application includes a computer program or instructions, which, when executed by a processor, implements the steps in the distributed power generation system fault detection and fault tolerance method provided in the present application.

[0059] In this application, compared with the related art, the location information and weather information of each distributed power generation device are obtained; based on the location information and weather information of each distributed power generation device, each distributed power generation device is clustered to obtain multiple first device clusters, each first device clustering cluster contains multiple distributed power generation devices; each distributed power generation device is determined as a target power generation device; the actual value of the power generation of the target power generation device is obtained; the actual value of the power generation of each distributed power generation device in each first device clustering cluster where the target power generation device is located is obtained; the estimated power generation value of the target power generation device is determined based on the actual value of the power generation of each distributed power generation device; if the actual value of the power generation of the target power generation device is less than the preset ratio of the estimated power generation value of the target power generation device, the target power generation device is determined as a faulty power generation device; at least part of the multiple mobile energy storage devices are determined as multiple target mobile energy storage devices; multiple target mobile energy storage devices are connected to the target power grid to supply power to the target power grid. This application can improve the accuracy and fault tolerance of the distributed power generation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0061] Figure 1 It is a scenario diagram of a distributed power generation system fault detection and fault tolerance system provided by an embodiment of the present application;

[0062] Figure 2 It is a flow chart of an embodiment of a method for fault detection and fault tolerance of a distributed power generation system provided in an embodiment of the present application;

[0063] Figure 3 It is a structural diagram of a fault detection and fault tolerance device for a distributed power generation system provided in an embodiment of the present application;

[0064] Figure 4 It is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0065] It should be noted that the principles of the present application are illustrated by implementing them in an appropriate computing environment. The following description is based on the illustrated specific embodiments of the present application and should not be considered as limiting other specific embodiments of the present application that are not described in detail herein.

[0066] In the following description of the present application, reference is made to “some embodiments”, which describe a subset of all possible embodiments, but it can be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0067] In the following description of the present application, the terms "first\second\third" involved are merely used to distinguish similar objects and do not represent a specific ordering of the objects. It can be understood that "first\second\third" can be interchanged with a specific order or sequence where permitted, so that the embodiments of the present application described here can be implemented in an order other than that illustrated or described here.

[0068] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0069] In order to improve the effect of fault detection and fault tolerance of a distributed power generation system, the embodiments of the present application provide a method for fault detection and fault tolerance of a distributed power generation system, a device for fault detection and fault tolerance of a distributed power generation system, an electronic device, a computer-readable storage medium, and a computer program product. The method for fault detection and fault tolerance of a distributed power generation system can be executed by the device for fault detection and fault tolerance of a distributed power generation system, or by an electronic device that integrates the device for fault detection and fault tolerance of a distributed power generation system.

[0070] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0071] Please refer to Figure 1 , the present application also provides a distributed power generation system fault detection and fault tolerance system, such as Figure 1 As shown, the distributed power generation system fault detection and fault tolerance system includes a distributed power generation system and an electronic device 100. The distributed power generation system is used to supply power to a target power grid. The distributed power generation system includes a plurality of distributed power generation devices and a plurality of mobile energy storage devices.

[0072] Among them, the electronic device 100 can be any device equipped with a processor and has processing capabilities, such as mobile electronic devices with processors such as smart phones, tablet computers, PDAs, laptops, smart speakers, or fixed electronic devices with processors such as desktop computers, televisions, servers, industrial equipment, etc.

[0073] In addition, if Figure 1 As shown, the distributed power generation system fault detection and fault tolerance system may further include a memory 200 for storing original data, intermediate data and result data.

[0074] In the embodiment of the present application, the memory 200 can be a cloud storage. Cloud storage is a new concept extended and developed from the concept of cloud computing. A distributed cloud storage system (hereinafter referred to as the storage system) refers to a storage system that uses cluster applications, grid technology, and distributed storage file systems to bring together a large number of different types of storage devices (storage devices are also called storage nodes) in the network through application software or application interfaces to work together and provide external data storage and business access functions.

[0075] At present, the storage method of the storage system is: create a logical volume, and when creating a logical volume, allocate physical storage space for each logical volume. The physical storage space may be composed of disks of a storage device or several storage devices. The client stores data on a logical volume, that is, stores the data on the file system. The file system divides the data into many parts, each of which is an object. The object contains not only data but also additional information such as data identification (ID, ID entity). The file system writes each object into the physical storage space of the logical volume, and the file system records the storage location information of each object, so that when the client requests to access the data, the file system can allow the client to access the data according to the storage location information of each object.

[0076] The process of the storage system allocating physical storage space to a logical volume is as follows: based on the estimated capacity of the objects stored in the logical volume (this estimate often has a large margin relative to the actual capacity of the objects to be stored) and the grouping of independent redundant disk arrays (RAID, Redundant Array of Independent Disk), the physical storage space is divided into stripes in advance. A logical volume can be understood as a stripe, thereby allocating physical storage space to the logical volume.

[0077] It should be noted that Figure 1 The scenario diagram of the distributed power generation system fault detection and fault-tolerant system shown is only an example. The distributed power generation system fault detection and fault-tolerant system and scenario described in the embodiment of the present application are intended to more clearly illustrate the technical solution of the embodiment of the present application, and do not constitute a limitation on the technical solution provided in the embodiment of the present application. Ordinary technicians in this field can know that with the evolution of the distributed power generation system fault detection and fault-tolerant system and the emergence of new business scenarios, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

[0078] It should be noted that the serial numbers of the following embodiments are not intended to limit the preferred order of the embodiments.

[0079] Please refer to Figure 2 , Figure 2 FIG. 1 is a flow chart of an embodiment of a method for fault detection and fault tolerance of a distributed power generation system provided in an embodiment of the present application. Figure 2 As shown, the process of the distributed power generation system fault detection and fault tolerance method provided by this application is as follows:

[0080] 201. Obtain location information and weather information of each distributed power generation device.

[0081] 202. Cluster each distributed power generation device based on the location information and weather information of each distributed power generation device to obtain a plurality of first device clusters.

[0082] Each first device cluster includes a plurality of distributed power generation devices.

[0083] 203. Determine each distributed power generation device as a target power generation device.

[0084] 204. Obtain the actual value of the power generation of the target power generation equipment.

[0085] 205. Obtain the actual value of the power generation power of each distributed power generation device in each first device cluster where the target power generation device is located.

[0086] 206. Determine an estimated value of the power generation of the target power generation device based on the actual value of the power generation of each distributed power generation device.

[0087] In the embodiment of the present application, determining the estimated power generation value of the target power generation device based on the actual power generation value of each distributed power generation device includes:

[0088] (1) Obtain the true value of the power generated by each distributed power generation device.

[0089] (2) Obtaining a first target distance between each distributed power generation device and a target power generation device.

[0090] (3) Determine the target weight corresponding to each distributed power generation device based on the first target distance corresponding to each distributed power generation device, wherein the larger the first target distance, the larger the target weight.

[0091] (4) Determine the estimated power generation value of the target power generation device based on the target weight corresponding to each distributed power generation device and the actual power generation value of each distributed power generation device.

[0092] Furthermore, based on the target weights corresponding to the various distributed power generation devices and the actual power generation values ​​of the various distributed power generation devices, an estimated power generation value of the target power generation device is determined, including: obtaining multiple candidate power generation devices from the various distributed power generation devices; and obtaining an estimated power generation value of the target power generation device based on a weighted summation of the target weights of the multiple candidate power generation devices and the actual power generation values ​​of the various candidate power generation devices.

[0093] 207. If the actual value of the power generation of the target power generation equipment is less than a preset ratio of the estimated value of the power generation of the target power generation equipment, the target power generation equipment is determined as a faulty power generation equipment.

[0094] 208. Determine at least some of the multiple mobile energy storage devices as multiple target mobile energy storage devices.

[0095] 209. Connect multiple target mobile energy storage devices to the target power grid to supply power to the target power grid.

[0096] In an embodiment of the present application, connecting a plurality of the target mobile energy storage devices to a target power grid to supply power to the target power grid includes:

[0097] (1) Obtaining the number of times each mobile energy storage device has been charged and discharged, the time interval since the last charge and discharge, and the remaining power.

[0098] (2) Determine the candidate priority based on the number of times the mobile energy storage device has been charged and discharged, the time interval since the last charge and discharge, and the remaining power.

[0099] (3) Determine the multiple mobile energy storage devices with the highest candidate priority as the multiple target mobile energy storage devices.

[0100] Obtaining location information and the number of failures of the failed power generation equipment that has failed within a preset time period according to a preset cycle;

[0101] Clustering the distributed power generation equipment based on the location information and the number of failures of the failed power generation equipment to obtain a plurality of second equipment clusters;

[0102] In order to facilitate better implementation of the distributed power generation system fault detection and fault tolerance method provided in the embodiment of the present application, the embodiment of the present application also provides a distributed power generation system fault detection and fault tolerance device based on the above-mentioned distributed power generation system fault detection and fault tolerance method. The meanings of the terms are the same as those in the above-mentioned distributed power generation system fault detection and fault tolerance method. For specific implementation details, please refer to the description in the above method embodiment.

[0103] Please refer to Figure 3 , Figure 3A schematic diagram of the structure of a distributed power generation system fault detection and fault tolerance device provided in an embodiment of the present application, the distributed power generation system fault detection and fault tolerance device may include:

[0104] The first acquisition module 701 is used to acquire the location information and weather information of each of the distributed power generation devices;

[0105] A clustering module 702 is used to cluster each of the distributed power generation devices based on the location information and weather information of each of the distributed power generation devices to obtain a plurality of first device clusters, each of which includes a plurality of the distributed power generation devices;

[0106] A first determination module 703 is used to determine each of the distributed power generation equipment as a target power generation equipment;

[0107] The second acquisition module 704 is used to acquire the real value of the power generation power of the target power generation equipment;

[0108] The third acquisition module 705 is used to obtain the actual value of the power generation of each of the distributed power generation devices in each of the first device clusters where the target power generation device is located;

[0109] A second determination module 706 is used to determine the estimated power generation value of the target power generation device based on the actual power generation value of each of the distributed power generation devices;

[0110] A third determination module 707 is configured to determine the target power generation device as a faulty power generation device if the actual power generation value of the target power generation device is less than a preset ratio of the estimated power generation value of the target power generation device;

[0111] A fourth determination module 708 is configured to determine at least some of the multiple mobile energy storage devices as multiple target mobile energy storage devices;

[0112] The access module 709 is used to connect the plurality of target mobile energy storage devices to a target power grid to supply power to the target power grid.

[0113] Obtaining location information and weather information of each of the distributed power generation devices;

[0114] Clustering each of the distributed power generation devices based on location information and weather information of each of the distributed power generation devices to obtain a plurality of first device clusters, each of which includes a plurality of the distributed power generation devices;

[0115] Determine each of the distributed power generation equipment as a target power generation equipment;

[0116] Obtaining a true value of the power generation power of the target power generation equipment;

[0117] Acquire the actual value of power generation of each of the distributed power generation devices in each of the first device clusters where the target power generation device is located;

[0118] Determine the estimated power generation value of the target power generation device based on the actual power generation value of each of the distributed power generation devices;

[0119] If the actual value of the power generation of the target power generation equipment is less than a preset ratio of the estimated value of the power generation of the target power generation equipment, the target power generation equipment is determined as a faulty power generation equipment;

[0120] Determine at least some of the multiple mobile energy storage devices as multiple target mobile energy storage devices;

[0121] A plurality of the target mobile energy storage devices are connected to a target power grid to supply power to the target power grid.

[0122] Optionally, determining at least some of the multiple mobile energy storage devices as multiple target mobile energy storage devices includes:

[0123] Obtaining the number of times each mobile energy storage device has been charged and discharged, the time interval since the last charge and discharge, and the remaining power;

[0124] Determine the candidate priority based on the number of times the mobile energy storage device has been charged and discharged, the time interval since the last charge and discharge, and the remaining power;

[0125] The plurality of mobile energy storage devices having the highest candidate priority are determined as the plurality of target mobile energy storage devices.

[0126] Optionally, the determining the estimated power generation value of the target power generation device based on the actual power generation value of each of the distributed power generation devices includes:

[0127] Obtaining the real value of the power generation of each of the distributed power generation devices;

[0128] Acquire a first target distance between each of the distributed power generation equipment and the target power generation equipment;

[0129] Determine a target weight corresponding to each of the distributed power generation devices based on the first target distance corresponding to each of the distributed power generation devices, wherein the larger the first target distance is, the larger the target weight is;

[0130] The estimated value of the power generation power of the target power generation device is determined based on the target weight corresponding to each of the distributed power generation devices and the actual value of the power generation power of each of the distributed power generation devices.

[0131] Optionally, determining the estimated power generation value of the target power generation device based on the target weight corresponding to each of the distributed power generation devices and the actual power generation value of each of the distributed power generation devices includes:

[0132] Acquire multiple candidate power generation devices from each of the distributed power generation devices;

[0133] Based on the weighted sum of the target weights of the plurality of candidate power generation equipment and the actual power generation values ​​of the candidate power generation equipment, the power generation power estimation value of the target power generation equipment is obtained.

[0134] The specific implementation of each of the above modules can be found in the previous embodiments and will not be described in detail here.

[0135] An embodiment of the present application also provides an electronic device, including a memory and a processor, wherein the processor is used to execute the steps of the distributed power generation system fault detection and fault tolerance method provided in this embodiment by calling a computer program stored in the memory.

[0136] Please refer to Figure 4 , Figure 4 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0137] The electronic device may include components such as a processor 101 with one or more processing cores, a memory 102 with one or more computer-readable storage media, a power supply 103, and an input unit 104. Those skilled in the art will appreciate that the electronic device structure shown in the figure does not constitute a limitation on the electronic device, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently. Among them:

[0138] The processor 101 is the control center of the electronic device, which uses various interfaces and lines to connect various parts of the entire electronic device, and executes various functions of the electronic device and processes data by running or executing software programs and / or modules stored in the memory 102, and calling data stored in the memory 102. Optionally, the processor 101 may include one or more processing cores; optionally, the processor 101 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 101.

[0139] The memory 102 can be used to store software programs and modules. The processor 101 executes various functional applications and data processing by running the software programs and modules stored in the memory 102. The memory 102 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area may store data created according to the use of the electronic device, etc. In addition, the memory 102 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices. Accordingly, the memory 102 may also include a memory controller to provide the processor 101 with access to the memory 102.

[0140] The electronic device also includes a power supply 103 for supplying power to each component. Optionally, the power supply 103 can be logically connected to the processor 101 through a power management system, so as to manage charging, discharging, and power consumption through the power management system. The power supply 103 can also include one or more DC or AC power supplies, recharging systems, power failure detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0141] The electronic device may further include an input unit 104, which may be used to receive input digital or character information and generate keyboard, mouse, joystick, optical or trackball signal input related to user settings and function control.

[0142] Although not shown, the electronic device may also include a display unit, an image acquisition component, etc., which will not be described in detail here. Specifically in this embodiment, the processor 101 in the electronic device will load the executable code corresponding to one or more computer programs into the memory 102 according to the following instructions, and the processor 101 will execute the steps in the distributed power generation system fault detection and fault tolerance method provided in the present application, such as:

[0143] Obtaining location information and weather information of each of the distributed power generation devices;

[0144] Clustering each of the distributed power generation devices based on location information and weather information of each of the distributed power generation devices to obtain a plurality of first device clusters, each of which includes a plurality of the distributed power generation devices;

[0145] Determine each of the distributed power generation equipment as a target power generation equipment;

[0146] Obtaining a true value of the power generation power of the target power generation equipment;

[0147] Acquire the actual value of power generation of each of the distributed power generation devices in each of the first device clusters where the target power generation device is located;

[0148] Determine the estimated power generation value of the target power generation device based on the actual power generation value of each of the distributed power generation devices;

[0149] If the actual value of the power generation of the target power generation equipment is less than a preset ratio of the estimated value of the power generation of the target power generation equipment, the target power generation equipment is determined as a faulty power generation equipment;

[0150] Determine at least some of the multiple mobile energy storage devices as multiple target mobile energy storage devices;

[0151] A plurality of the target mobile energy storage devices are connected to a target power grid to supply power to the target power grid.

[0152] Optionally, determining at least some of the multiple mobile energy storage devices as multiple target mobile energy storage devices includes:

[0153] Obtaining the number of times each mobile energy storage device has been charged and discharged, the time interval since the last charge and discharge, and the remaining power;

[0154] Determine the candidate priority based on the number of times the mobile energy storage device has been charged and discharged, the time interval since the last charge and discharge, and the remaining power;

[0155] The plurality of mobile energy storage devices having the highest candidate priority are determined as the plurality of target mobile energy storage devices.

[0156] Optionally, the determining the estimated power generation value of the target power generation device based on the actual power generation value of each of the distributed power generation devices includes:

[0157] Obtaining the real value of the power generation of each of the distributed power generation devices;

[0158] Acquire a first target distance between each of the distributed power generation equipment and the target power generation equipment;

[0159] Determine a target weight corresponding to each of the distributed power generation devices based on the first target distance corresponding to each of the distributed power generation devices, wherein the larger the first target distance is, the larger the target weight is;

[0160] The estimated value of the power generation power of the target power generation device is determined based on the target weight corresponding to each of the distributed power generation devices and the actual value of the power generation power of each of the distributed power generation devices.

[0161] Optionally, determining the estimated power generation value of the target power generation device based on the target weight corresponding to each of the distributed power generation devices and the actual power generation value of each of the distributed power generation devices includes:

[0162] Acquire multiple candidate power generation devices from each of the distributed power generation devices;

[0163] Based on the weighted sum of the target weights of the plurality of candidate power generation equipment and the actual power generation values ​​of the candidate power generation equipment, the power generation power estimation value of the target power generation equipment is obtained.

[0164] It should be noted that the electronic device provided in the embodiment of the present application and the distributed power generation system fault detection and fault tolerance method in the above embodiment belong to the same concept, and its specific implementation process is detailed in the above related embodiments and will not be repeated here.

[0165] The present application also provides a computer-readable storage medium on which a computer program is stored. When the computer program stored therein is executed on a processor of an electronic device provided in an embodiment of the present application, the processor of the electronic device executes the steps in the distributed power generation system fault detection and fault tolerance method provided in the present application. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc.

[0166] The present application also provides a computer program product or a computer program, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes various optional implementations of the above-mentioned distributed power generation system fault detection and fault tolerance method.

[0167] The above is a detailed introduction to a distributed power generation system fault detection and fault tolerance method and device provided by the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

[0168] It should be noted that when the above embodiments of the present application are applied to specific products or technologies, the relevant data of the user is involved, and the user's permission or consent is required, and the collection, use and processing of the relevant data must comply with the relevant laws, regulations and standards of the relevant countries and regions.

Claims

1. A distributed power generation system fault detection and fault tolerance method, characterized in that: The distributed power generation system is used to supply power to a target power grid. The distributed power generation system includes a plurality of distributed power generation devices and a plurality of mobile energy storage devices. The fault detection and fault tolerance method of the distributed power generation system includes: Obtaining location information and weather information of each of the distributed power generation devices; Clustering each of the distributed power generation devices based on location information and weather information of each of the distributed power generation devices to obtain a plurality of first device clusters, each of which includes a plurality of the distributed power generation devices; Determine each of the distributed power generation equipment as a target power generation equipment; Obtaining a true value of the power generation power of the target power generation equipment; Acquire the actual value of power generation of each of the distributed power generation devices in each of the first device clusters where the target power generation device is located; Determine the estimated power generation value of the target power generation device based on the actual power generation value of each of the distributed power generation devices; If the actual value of the power generation of the target power generation equipment is less than a preset ratio of the estimated value of the power generation of the target power generation equipment, the target power generation equipment is determined as a faulty power generation equipment; Determine at least some of the multiple mobile energy storage devices as multiple target mobile energy storage devices; Connecting a plurality of the target mobile energy storage devices to a target power grid to supply power to the target power grid; The step of determining the estimated power generation value of the target power generation device based on the actual power generation value of each of the distributed power generation devices comprises: Obtaining the real value of the power generation of each of the distributed power generation devices; Acquire multiple candidate power generation devices from each of the distributed power generation devices; Based on the weighted sum of the target weights of the plurality of candidate power generation equipment and the actual power generation values ​​of the candidate power generation equipment, the power generation power estimation value of the target power generation equipment is obtained.

2. The distributed power generation system fault detection and fault tolerance method according to claim 1, characterized in that: The step of determining at least some of the plurality of mobile energy storage devices as a plurality of target mobile energy storage devices comprises: Obtaining the number of times each mobile energy storage device has been charged and discharged; Determining a candidate priority based on the number of times the mobile energy storage device has been charged and discharged; A plurality of the target mobile energy storage devices are determined based on the candidate priorities.

3. The distributed power generation system fault detection and fault tolerance method according to claim 2, characterized in that: The determining of the candidate priority based on the number of times the mobile energy storage device has been charged and discharged includes: Obtaining the time interval between the last charge and discharge of each of the mobile energy storage devices; The candidate priority is determined based on the number of times and time intervals of charge and discharge of the mobile energy storage device.

4. The distributed power generation system fault detection and fault tolerance method according to claim 3, characterized in that: The determining of the candidate priority based on the number of times the mobile energy storage device has been charged and discharged includes: Obtaining the remaining power of each of the mobile energy storage devices; The candidate priority is determined based on the number of times the mobile energy storage device has been charged and discharged, the time interval since the last charge and discharge, and the remaining power.

5. The distributed power generation system fault detection and fault tolerance method according to claim 1, characterized in that: Determining a plurality of target mobile energy storage devices based on the candidate priorities includes: The plurality of mobile energy storage devices having the highest candidate priority are determined as the plurality of target mobile energy storage devices.

6. A fault detection and fault tolerance device for a distributed power generation system, characterized in that: include: A first acquisition module is used to acquire location information and weather information of each distributed power generation device; A clustering module, configured to cluster each of the distributed power generation devices based on location information and weather information of each of the distributed power generation devices to obtain a plurality of first device clusters, each of which includes a plurality of the distributed power generation devices; A first determination module, used to determine each of the distributed power generation equipment as a target power generation equipment; A second acquisition module is used to obtain the real value of the power generation power of the target power generation equipment; A third acquisition module is used to acquire the actual value of the power generation power of each of the distributed power generation devices in each of the first device clusters where the target power generation device is located; A second determination module is used to determine the estimated power generation value of the target power generation device based on the actual power generation value of each of the distributed power generation devices; A third determination module is used to determine the target power generation equipment as a faulty power generation equipment if the actual power generation value of the target power generation equipment is less than a preset ratio of the estimated power generation value of the target power generation equipment; A fourth determination module, configured to determine at least some of the multiple mobile energy storage devices as multiple target mobile energy storage devices; An access module, used to connect the plurality of target mobile energy storage devices to a target power grid to supply power to the target power grid; The second determining module is specifically used to: Obtaining the real value of the power generation of each of the distributed power generation devices; Acquire multiple candidate power generation devices from each of the distributed power generation devices; Based on the weighted sum of the target weights of the plurality of candidate power generation equipment and the actual power generation values ​​of the candidate power generation equipment, the power generation power estimation value of the target power generation equipment is obtained.

7. An electronic device, characterized in that: It comprises a memory and a processor, wherein the memory stores a computer program, and the processor is used to run the computer program in the memory to execute the steps in the distributed power generation system fault detection and fault tolerance method according to any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a plurality of instructions, and the instructions are suitable for being loaded by a processor to execute the steps in the distributed power generation system fault detection and fault tolerance method according to any one of claims 1 to 5.

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