Method and device for locating converter valve discharge fault, and electronic equipment

Abstract

This application proposes a method and apparatus for locating a converter valve discharge fault, a converter valve discharge fault locating system, and electronic equipment. The method is applied to a converter valve discharge fault locating system, wherein the converter valve discharge fault locating system includes at least one converter valve and at least one discharge detection unit. The method comprises: determining a set of discharge detection units corresponding to each converter valve based on the detection capability of each discharge detection unit and the distance and angle between each converter valve and each discharge detection unit; when a discharge fault occurs in the at least one converter valve, obtaining a set of discharge detection units in an operative state; and locating the converter valve with the discharge fault based on the set of discharge detection units corresponding to each converter valve and the set of discharge detection units in an operative state. According to exemplary embodiments of the present application, the implementation method is simple and reliable, and can effectively avoid false discharge alarms.

Description

Technical Field

[0001] The present application relates to the field of power electronics, and in particular to a method and device for locating a converter valve discharge fault, a converter valve discharge fault locating system, and electronic equipment. Background Art

[0002] Ultra-high voltage direct current (UHVDC) transmission technology is an effective means of transmitting electricity from western energy bases to eastern load centers over long distances. Converter valves are the core equipment in direct current (DC) transmission systems, performing AC-DC conversion. Their reliability is crucial to the availability of the DC transmission system.

[0003] According to converter valve maintenance records, discharge faults primarily include surface creepage, tip discharge, and suspended discharge. Faulty components primarily include optical fibers, cable trays, damping capacitors, grading resistors, and water electrodes. Converter valves are primarily located in the valve hall of a converter station. Invisible ultraviolet flame detectors, installed on the walls surrounding the valve hall, can monitor the valves for discharge.

[0004] Currently, discharge alarm systems based on invisible ultraviolet flame detectors lack discharge location capabilities. When a discharge fault occurs in a converter valve in the valve hall, the discharge alarm system simply issues a "UV xx action" alarm in the background. Visible ultraviolet imaging systems, combining visible lenses with ultraviolet detection, can better locate discharges. However, these systems are expensive, hundreds of times more expensive than invisible ultraviolet flame detection systems. Currently, visible ultraviolet imaging systems are only installed in select substations. Summary of the Invention

[0005] According to one aspect of the present application, a method for locating a converter valve discharge fault is proposed. The method is applied to a converter valve discharge fault locating system, wherein the converter valve discharge fault locating system includes at least one converter valve and at least one discharge detection unit. The method includes: determining a set of discharge detection units corresponding to each converter valve based on the detection capability of each discharge detection unit and the distance and angle between each converter valve and each discharge detection unit; when a discharge fault occurs in the at least one converter valve, obtaining a set of discharge detection units in an operative state; and locating the converter valve with the discharge fault based on the set of discharge detection units corresponding to each converter valve and the set of discharge detection units in an operative state.

[0006] According to some embodiments, the detection capability of each discharge detection unit is determined as follows:

[0007] The detection angle of the discharge detection unit is equally divided; and the detection distance of the discharge detection unit at each detection angle is calculated, where the detection distance is the detection capability of the discharge detection unit.

[0008] According to some embodiments, the detection distance is the detection distance of the discharge detection unit at each detection viewing angle when the detection distance is the maximum discharge amount of the converter valve in history of discharge faults.

[0009] According to some embodiments, the set of discharge detection units corresponding to each converter valve is determined in the following manner:

[0010] Determine whether the converter valve is within the detection capability range of the discharge detection unit; if so, the discharge detection unit is in the discharge detection unit set corresponding to the converter valve.

[0011] According to some embodiments, determining whether the converter valve is within the detection capability range of the discharge detection unit includes: determining whether the distance between the converter valve and the discharge detection unit is less than the detection distance of each equally divided detection angle in the discharge detection unit; if less than, the converter valve is within the detection capability range of the discharge detection unit.

[0012] According to some embodiments, a converter valve with a discharge fault is located by:

[0013] Determine whether the set of discharge detection units corresponding to the converter valve and the set of discharge detection units in an action state have an intersection; if there is an intersection, determine whether a shielding condition is met; if the shielding condition is met, the converter valve has a discharge fault.

[0014] According to some embodiments, the shielding condition includes that the result of any logical calculation of the discharge detection unit set corresponding to the converter valve and any other converter valve is true, wherein the logical calculation includes: calculating the valve intersection set of the converter valve and any other converter valve; calculating whether the remaining part set of the discharge detection unit set corresponding to the converter valve after excluding the valve intersection set has an intersection with the set of discharge detection units in an action state, to obtain a first judgment result; calculating whether the remaining part set of the discharge detection unit set corresponding to any converter valve after excluding the valve intersection set has an intersection with the set of discharge detection units in an action state, to obtain a second judgment result; calculating the logical AND calculation result of the first judgment result and the second judgment result; and calculating the logical NOT calculation result of the logical AND calculation result.

[0015] According to one aspect of the present application, a device for locating a converter valve discharge fault is provided. The device is applied to a converter valve discharge fault locating system, wherein the converter valve discharge fault locating system includes at least one converter valve and at least one discharge detection unit. The device includes: a discharge detection unit set determining unit, configured to determine a discharge detection unit set corresponding to each converter valve based on the detection capability of each discharge detection unit and the distance and angle between each converter valve and each discharge detection unit; an action set unit acquiring unit, configured to acquire a set of discharge detection units in an action state when a discharge fault occurs in the at least one converter valve; and a discharge fault converter valve locating unit, configured to locate the converter valve having the discharge fault based on the discharge detection unit set corresponding to each converter valve and the set of discharge detection units in an action state.

[0016] According to one aspect of the present application, a converter valve discharge fault locating system is proposed, and the converter valve discharge fault locating system includes the device as described above.

[0017] According to one aspect of the present application, an electronic device is proposed, comprising: one or more processing units; a storage unit for storing one or more programs; when the one or more programs are executed by the one or more processing units, the one or more processing units implement any of the methods described above.

[0018] According to the example embodiment of the present application, the detection angle of the discharge detection unit is reasonably divided into multiple detection angles, and each detection angle is tested separately to obtain the detection capability of the entire detection angle; based on the set of discharge detection units corresponding to the converter valve, the set of discharge detection units corresponding to other converter valves, and the set of discharge detection units in action, the converter valve with a discharge fault is located. The implementation method is simple and reliable, and can effectively avoid false discharge alarms. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments.

[0020] Figure 1 A flow chart of a method for locating a converter valve discharge fault according to an exemplary embodiment of the present application is shown.

[0021] Figure 2 A flow chart of a method for calculating the detection capability of a discharge detection unit according to an exemplary embodiment of the present application is shown.

[0022] Figure 3 A schematic top view illustrating the detection capability of a discharge detection unit according to an exemplary embodiment of the present application.

[0023] Figure 4A schematic diagram of the angle arrangement of a discharge detection unit detection lens and a discharge simulation generator discharge point according to an exemplary embodiment of the present application is shown.

[0024] Figure 5 A schematic diagram illustrating a method for determining a set of discharge detection units corresponding to a converter valve according to an exemplary embodiment of the present application is shown.

[0025] Figure 6 A flow chart of a method for calculating alarm logic of a converter valve according to an exemplary embodiment of the present application is shown.

[0026] Figure 7a A relationship diagram of a discharge detection unit set and an action unit set corresponding to two converter valves according to an exemplary embodiment of the present application is shown.

[0027] Figure 7b A relationship diagram of another discharge detection unit set and an action unit set corresponding to two converter valves according to an exemplary embodiment of the present application is shown.

[0028] Figure 7c A relationship diagram of another discharge detection unit set and an action unit set corresponding to two converter valves according to an exemplary embodiment of the present application is shown.

[0029] Figure 7d A relationship diagram of another discharge detection unit set and an action unit set corresponding to two converter valves according to an exemplary embodiment of the present application is shown.

[0030] Figure 8 A flow chart of a method for calculating alarm logic of a converter valve according to an exemplary embodiment of the present application is shown.

[0031] Figure 9 A block diagram of a device for locating a converter valve discharge fault according to an exemplary embodiment of the present application is shown.

[0032] Figure 10 A block diagram of a converter valve discharge fault location system according to an exemplary embodiment of the present application is shown.

[0033] Figure 11 An electronic device according to an exemplary embodiment of the present application is shown. DETAILED DESCRIPTION

[0034] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the drawings represent like or similar parts, and thus repetitive description thereof will be omitted.

[0035] The described features, structures or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of these specific details, or other modes, components, materials, devices or operations may be employed. In these cases, well-known structures, methods, devices, implementations, materials or operations will not be shown or described in detail.

[0036] The flowcharts shown in the accompanying drawings are for illustrative purposes only and do not necessarily include all contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may be decomposed, while others may be combined or partially combined. Therefore, the actual execution order may vary depending on the actual situation.

[0037] The terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish between different objects, not to describe a particular order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0038] The specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0039] Figure 1 A flow chart of a method for locating a converter valve discharge fault according to an exemplary embodiment of the present application is shown below. Figure 1 , a method for locating a converter valve discharge fault according to an example embodiment of the present application is described in detail.

[0040] According to an exemplary embodiment of the present application, Figure 1 The method for locating a converter valve discharge fault is applied to a converter valve discharge fault locating system, wherein the converter valve discharge fault locating system includes at least one converter valve and at least one discharge detection unit.

[0041] like Figure 1 As shown, in step S101, the discharge detection unit set corresponding to each converter valve is determined according to the detection capability of each discharge detection unit, the distance and angle between each converter valve and each discharge detection unit.

[0042] Figure 2 A flow chart of a method for calculating the detection capability of a discharge detection unit according to an exemplary embodiment of the present application is shown as follows: Figure 2As shown, in step S1011, the detection viewing angle of the discharge detection unit is equally divided.

[0043] In step S1013 , the detection distance of the discharge detection unit at each detection viewing angle is calculated, and the obtained detection distance is the detection capability of the discharge detection unit.

[0044] Figure 3 A schematic top view showing the detection capability of a discharge detection unit according to an exemplary embodiment of the present application is shown as follows: Figure 3 As shown in the figure, the detection angle of the discharge detection unit is divided into 12 parts, namely 60° to 50°, 50° to 40°, 40° to 30°, 30° to 20°, 20° to 10°, 10° to 0°, 0° to 10°, 10° to 20°, 20° to 30°, 30° to 40°, 40° to 50°, and 50° to 60° from left to right. The angles corresponding to the two boundaries of each detection angle are selected as the detection angles, for a total of 13 detection angles, namely 60°, 50°, 40°, 30°, 20°, 10°, 0°, 10°, 20°, 30°, 40°, 50°, and 60° from left to right.

[0045] Figure 4 A schematic diagram showing the angle arrangement of a discharge detection unit detection lens and a discharge simulation generator according to an exemplary embodiment of the present application is shown. Figure 4 As shown, when testing the detection capability at a detection angle θ, the line connecting the center of the detection lens of the discharge detection unit and the discharge point of the discharge simulation generator is arranged at an angle θ to the normal of the detection lens, and the alarm node of the discharge detection unit is connected to the measuring device. According to some embodiments, the measuring device includes a multimeter or a measurement and control device.

[0046] When testing the detection capability of the discharge detection unit at a detection angle θ, the discharge detection unit is kept at a certain distance from a discharge simulator. The simulator simulates a specified discharge level. The specified discharge level is the maximum discharge level associated with a converter valve discharge fault in history. By presetting the discharge level of the simulator to the maximum discharge level associated with a converter valve discharge fault in history, this discharge level test determines the maximum detection capability of the discharge detection unit. This ensures that when determining the set of discharge detection units corresponding to each converter valve, some discharge detection units are not omitted from the set, potentially leading to missed converter valve discharge alarms.

[0047] Maintaining the angle between the detection lens and the discharge simulation generator constant, the distance between the discharge detection unit and the discharge simulation generator is gradually reduced. During this distance reduction process, when the measuring device detects the activation of the discharge detection unit's alarm node, the distance between the center of the discharge detection unit's detection lens and the discharge point of the discharge simulation generator is the detection distance of the detection lens at the detection angle θ under the current discharge amount. The resulting detection distance is the detection capability of the discharge detection unit.

[0048] repeat Figure 2 The steps shown are used to obtain the detection capability of each discharge detection unit at all detection angles.

[0049] according to Figure 2 The illustrated embodiment divides the discharge detection unit's detection angle into multiple detection angles. Each detection angle is tested individually, ultimately integrating the detection capabilities across the entire detection angle. This reduces testing complexity while ensuring reliability. Testing at each detection angle simply requires controlling the distance between the discharge detection unit and the discharge simulator to achieve detection capability, resulting in a simple and efficient implementation.

[0050] According to some embodiments of the present application, it is determined whether the converter valve is within the detection capability range of the discharge detection unit; if so, the discharge detection unit is in the set of discharge detection units corresponding to the converter valve.

[0051] According to some embodiments, it is determined whether the distance between the converter valve and the discharge detection unit is less than the detection distance of each equally divided detection angle in the discharge detection unit; if less than, the converter valve is within the detection capability range of the discharge detection unit.

[0052] Figure 5 A schematic diagram illustrating a method for determining a set of discharge detection units corresponding to a converter valve according to an exemplary embodiment of the present application is shown. Figure 5 The range shown by the middle curve is the detection capability of the discharge detection unit. Figure 5 As shown, the distance between the converter valve and the discharge detection unit is less than the detection distance of the discharge detection unit under one of the equally divided detection angles. Therefore, the discharge detection unit 1 is in the discharge detection unit set corresponding to the converter valve 1.

[0053] pass Figure 5 The method shown replaces the experimental acquisition in the actual converter valve. Simple mathematical statistics and comparisons are used to determine the set of discharge detection units corresponding to each converter valve. The implementation method is simple and efficient.

[0054] In step S103, when a discharge fault occurs in at least one converter valve, a set of discharge detection units in an operating state is obtained.

[0055] According to some embodiments, when at least one converter valve has a discharge fault, an alarm node in the discharge detection unit is triggered to execute an alarm action. In step S103, when at least one converter valve has a discharge fault, a set of discharge detection units in an active state is obtained and recorded as an action unit number set.

[0056] In step S105 , the converter valve with a discharge fault is located based on the set of discharge detection units corresponding to each converter valve and the set of discharge detection units in an operating state.

[0057] According to some embodiments of the present application, if the set of discharge detection units corresponding to the converter valve intersects with the set of discharge detection units in an action state, and the shielding conditions meet the requirements, it is output that the converter valve has a discharge fault.

[0058] According to some embodiments, the shielding condition is that the result of any logical calculation of the discharge detection unit set corresponding to the converter valve and any other converter valve is true; wherein the logical calculation includes:

[0059] Calculate the valve intersection set between the converter valve and any other converter valve;

[0060] Calculating whether the remaining set of the discharge detection unit set corresponding to the converter valve after excluding the inter-valve intersection set has an intersection with the set of discharge detection units in an operating state, and obtaining a first judgment result;

[0061] Calculate whether the remaining set of the discharge detection unit set corresponding to any converter valve after excluding the inter-valve intersection set has an intersection with the set of discharge detection units in the operating state, and obtain a second judgment result;

[0062] Calculate a logical AND calculation result of the first judgment result and the second judgment result;

[0063] Computes the logical NOT of a logical AND.

[0064] If the result of this logical calculation is true, the masking condition is met.

[0065] Figure 6 A flow chart of a method for calculating alarm logic of a converter valve according to an exemplary embodiment of the present application is shown. Figure 6 The method shown is applicable to a case including two converter valves.

[0066] Assume that the converter valve V a The corresponding discharge detection unit set is set A, and the converter valve V b The corresponding discharge detection unit set is set B, the intersection of number set A and number set B is number set AB, and the set of all discharge detection units in the action state is recorded as the action unit set.

[0067] like Figure 6 As shown, the "Boolean judgment result that {action unit set} and {set A minus set AB} have no intersection" and the "Boolean judgment result that {action unit set} and {number B minus set AB} have an intersection" are taken "AND", and the result after taking "AND" is taken "NOT", and the result after taking "NOT" and the "Boolean judgment result that {action unit set} and {set A} have an intersection" are taken "AND", and the "V" is output according to the result after taking "AND". a Discharge alarm" signal.

[0068] Depend on Figure 6 The alarm logic calculation method shown in the figure shows that only when the set A and the action unit set have an intersection, it is possible to output "V a Discharge alarm" signal.

[0069] Figure 7a to Figure 7d A relationship diagram of a discharge detection unit set and an action unit set corresponding to two converter valves according to an exemplary embodiment of the present application is shown, wherein: Figure 7a to Figure 7d It includes four possible situations where set A intersects with the action unit set.

[0070] The following combination Figure 6 The alarm logic calculation method shown is described separately. Figure 7a to Figure 7d Output for the scenario shown.

[0071] like Figure 7a As shown, the Boolean judgment result of {action unit set} and {set A minus set AB} having no intersection is 1, and the Boolean judgment result of {action unit set} and {set B minus set AB} having an intersection is 1, and the sum of the two is 1; then the sum of the two is 0, and the Boolean judgment result of {action unit set} and {set A} having an intersection is 1, and the sum of the two is 0. Therefore, Figure 7a In the case shown, "V a Discharge alarm".

[0072] like Figure 7b As shown, the Boolean judgment result of {action unit set} and {set A minus set AB} having no intersection is 0, and the Boolean judgment result of {action unit set} and {set B minus set AB} having an intersection is 1, and the sum of the two is 0; then the negation is 1, and the Boolean judgment result of {action unit set} and {set A} having an intersection is 1, and the sum of the two is 1. Figure 7b In the situation shown, "Va discharge alarm" is output.

[0073] like Figure 7cAs shown, the Boolean judgment result of {action unit set} and {set A minus set AB} having no intersection is 0, the Boolean judgment result of {action unit set} and {set B minus set AB} having an intersection is 0, and the sum of the two is 0; then the negation is 1, the Boolean judgment result of {action unit set} and {set A} having an intersection is 1, and the sum of the two is 1. Figure 7c In the situation shown, "Va discharge alarm" is output.

[0074] like Figure 7d As shown, the Boolean judgment result of {action unit set} and {number A minus set AB} having no intersection is 0, the Boolean judgment result of {action unit set} and {set B minus set AB} having an intersection is 0, and the sum of the two is 0; then the negation is 1, the Boolean judgment result of {action unit set} and {set A} having an intersection is 1, and the sum of the two is 1. Figure 7d In the situation shown, "Va discharge alarm" is output.

[0075] Depend on Figure 6 and Figure 7a to Figure 7d It can be seen that according to Figure 6 The alarm logic calculation method shown can achieve accurate alarm without missing alarms and false alarms.

[0076] Figure 8 A flow chart of a method for calculating alarm logic of a converter valve according to an exemplary embodiment of the present application is shown. Figure 8 The illustrated method is applicable to scenarios involving multiple converter valves. The set of discharge detection units corresponding to converter valve A is set A, the set of discharge detection units corresponding to converter valve B is set B, ..., the set of discharge detection units corresponding to converter valve F is set F, the intersection of set A and set B is set AB, ..., and the intersection of set A and set F is set AF.

[0077] like Figure 8 As shown, the first step is to determine whether the set of discharge detection units corresponding to converter valve A intersects with the set of discharge detection units in the active state. If this determination is true, the next step is to determine whether converter valve A meets the shielding condition. Specifically, the logical calculation result between the discharge detection unit sets corresponding to converter valve A and any other converter valves is true.

[0078] like Figure 8As shown, for converter valve A, the following steps are performed: {the Boolean determination result that {the action unit set} and {set A minus set AB} do not intersect, and the Boolean determination result that {the action unit set} and {set B minus set AB} do intersect, and the result after the AND operation is negated}; ...; {the Boolean determination result that {the action unit set} and {set A minus set AF} do not intersect, and the Boolean determination result that {the action unit set} and {set F minus set AF} do intersect, and the result after the AND operation is negated}. All the results after negation are ORed, and the ORed result is ANDed with the Boolean determination result that {the action unit set} and {set A} do intersect. Finally, if the result after the AND operation is true, a "Va discharge alarm" signal is output.

[0079] According to the embodiments of the present application, the discharge detection unit utilizes an invisible ultraviolet flame detector to locate converter valve discharge faults. This eliminates the need for expensive visible ultraviolet imaging equipment, effectively reducing discharge location costs and enabling widespread deployment of discharge location functionality. This also makes maintenance more targeted, facilitates the development of appropriate power outage maintenance strategies, and improves DC system reliability.

[0080] according to Figure 1 The example embodiment shown in the figure obtains the detection capability of the entire detection angle by rationally dividing the detection angle of the discharge detection unit into multiple detection angles and testing each detection angle separately. The converter valve with a discharge fault is located based on the set of discharge detection units corresponding to the converter valve, the sets of discharge detection units corresponding to other converter valves, and the set of discharge detection units in an operating state. The implementation method is simple and reliable, and can effectively avoid false discharge alarms.

[0081] Figure 9 A block diagram of a device for locating a converter valve discharge fault according to an exemplary embodiment of the present application is shown. Figure 9 The device shown is applied to a converter valve discharge fault location system, wherein the converter valve discharge fault location system includes at least one converter valve and at least one discharge detection unit.

[0082] like Figure 9As shown, a device for locating a converter valve discharge fault includes a discharge detection unit set determining unit 901, an action set unit acquiring unit 903, and a discharge fault converter valve locating unit 905. The discharge detection unit set determining unit 901 is configured to determine the discharge detection unit set corresponding to each converter valve based on the detection capability of each discharge detection unit and the distance and angle between each converter valve and each discharge detection unit. The action set unit acquiring unit 903 is configured to acquire a set of discharge detection units in an active state when at least one converter valve has a discharge fault. The discharge fault converter valve locating unit 905 is configured to locate the converter valve having the discharge fault based on the discharge detection unit set corresponding to each converter valve and the set of discharge detection units in an active state.

[0083] According to an embodiment of the present application, a converter valve discharge fault location system is proposed, wherein the converter valve discharge fault location system includes: Figure 9 The device shown is for locating converter valve discharge fault.

[0084] Figure 10 A block diagram of a converter valve discharge fault location system according to an exemplary embodiment of the present application is shown. Figure 10 The converter valve discharge fault location system shown includes a discharge detection unit 1001 , a power supply 1009 , a communication module 1003 , a monitoring host 1005 and a workstation 1007 .

[0085] The discharge detection unit 1001 detects ultraviolet light within the detection field of view. When the ultraviolet light exceeds a threshold, the discharge detection unit activates. If a fault is detected during the self-test, the discharge detection unit generates a fault signal. When the discharge detection unit is not operating, it is in an inactive state and outputs an active state signal, a fault signal, and an inactive state signal to the communication module. The power supply 1009 supplies power to the discharge detection unit.

[0086] Communication module 1003 enables communication between discharge detection unit 1001 and monitoring host 1005. Monitoring host 1005 receives signals from all discharge detection units via communication module 1003 and processes the converter valve discharge alarm logic. Workstation 1007 displays all active discharge detection units, their operating status, and converter valve discharge alarm signals.

[0087] Figure 11 An electronic device according to an exemplary embodiment of the present application is shown. Figure 11 hereinafter, an electronic device 200 according to this embodiment of the present application is described. Figure 11 The electronic device 200 shown is merely an example and should not limit the functions and scope of use of the embodiments of the present application.

[0088] like Figure 11 As shown, electronic device 200 is implemented as a general-purpose computing device. Components of electronic device 200 may include, but are not limited to, at least one processing unit 210, at least one storage unit 220, a bus 230 connecting various system components (including storage unit 220 and processing unit 210), a display unit 240, and the like.

[0089] The storage unit stores program codes, which can be executed by the processing unit 210, so that the processing unit 210 executes the methods described in this specification according to various exemplary embodiments of the present application. For example, the processing unit 210 can execute the following Figure 1 The method shown in .

[0090] The storage unit 220 may include a readable medium in the form of a volatile storage unit, such as a random access memory unit (RAM) 2201 and / or a cache memory unit 2202 , and may further include a read-only memory unit (ROM) 2203 .

[0091] The storage unit 220 may also include a program / utility 2204 having a set (at least one) of program modules 2205, such program modules 2205 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.

[0092] Bus 230 may represent one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

[0093] The electronic device 200 can also communicate with one or more external devices 300 (e.g., a keyboard, a pointing device, a Bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 200, and / or any device that enables the electronic device 200 to communicate with one or more other computing devices (e.g., a router, a modem, etc.). Such communication can occur via an input / output (I / O) interface 250. Furthermore, the electronic device 200 can communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network such as the Internet) via a network adapter 260. The network adapter 260 can communicate with other modules of the electronic device 200 via the bus 230. It should be understood that, although not shown in the figures, other hardware and / or software modules can be used in conjunction with the electronic device 200, including but not limited to microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0094] Through the description of the above embodiments, it is easy for those skilled in the art to understand that the example embodiments described here can be implemented by software or by combining software with necessary hardware. The technical solution according to the embodiment of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, or a network device, etc.) to execute the above method according to the embodiment of the present application.

[0095] The software product can adopt any combination of one or more readable media. The readable medium can be a readable signal medium or a readable storage medium. The readable storage medium can be, for example, but not limited to, a system, device or component of electricity, magnetism, light, electromagnetic, infrared, or semiconductor, or any combination thereof. More specific examples (non-exhaustive list) of readable storage media include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof.

[0096] Computer-readable storage media may include a data signal propagated in baseband or as part of a carrier wave, which carries readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. The readable storage medium may also be any readable medium other than a readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. The program code contained on the readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wired, optical cable, RF, etc., or any suitable combination thereof.

[0097] The program code for performing the operations of the present application can be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java, C++, and the like, as well as conventional procedural programming languages ​​such as "C" or similar programming languages. The program code can be executed entirely on the user computing device, partially on the user device, as a stand-alone software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server. In cases involving a remote computing device, the remote computing device can be connected to the user computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computing device (e.g., via the Internet using an Internet service provider).

[0098] The computer-readable medium carries one or more programs. When the one or more programs are executed by the device, the computer-readable medium implements the aforementioned functions.

[0099] Those skilled in the art will appreciate that the modules described above can be distributed in the device according to the description of the embodiment, or can be modified accordingly to be used in one or more devices that are different from the embodiment. The modules of the above embodiment can be combined into one module or further divided into multiple submodules.

[0100] The embodiments of the present application are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only intended to help understand the method and core ideas of the present application. At the same time, changes or modifications made by those skilled in the art based on the ideas of the present application, the specific implementation methods, and the scope of application of the present application, all fall within the scope of protection of the present application. In summary, the contents of this specification should not be construed as limiting the present application.

Claims

1. A method for locating a converter valve discharge fault, characterized in that: The method is applied to a converter valve discharge fault location system, wherein the converter valve discharge fault location system includes at least one converter valve and at least one discharge detection unit, and the method includes: Determine a discharge detection unit set corresponding to each converter valve according to the detection capability of each discharge detection unit, the distance and angle between each converter valve and each discharge detection unit; When a discharge fault occurs in the at least one converter valve, obtaining a set of discharge detection units in an operating state; Locating the converter valve with a discharge fault based on the set of discharge detection units corresponding to each converter valve and the set of discharge detection units in an operating state; The set of discharge detection units corresponding to each converter valve is determined in the following manner: Determining whether the converter valve is within the detection capability range of the discharge detection unit includes determining whether, under each equally divided detection angle of view of the discharge detection unit, the distance between the converter valve and the discharge detection unit is less than the detection distance of the equally divided detection angle of view; if so, the converter valve is within the detection capability range of the discharge detection unit; If the converter valve is within the detection capability range of the discharge detection unit, the discharge detection unit is in the set of discharge detection units corresponding to the converter valve; Locate the converter valve with discharge fault by the following methods: Determining whether a set of discharge detection units corresponding to the converter valve and a set of discharge detection units in an operating state intersect; If there is an intersection, determine whether the shielding conditions are met; If the shielding condition is met, the converter valve has a discharge fault; The shielding condition includes that the result of any logical calculation of the discharge detection unit set corresponding to the converter valve and any other converter valve is true, and the logical calculation includes: Calculating an intersection set between the converter valve and any other converter valve; Calculating whether a remaining set of the discharge detection unit set corresponding to the converter valve excluding the inter-valve intersection set has an intersection with the set of discharge detection units in an operating state, to obtain a first judgment result; Calculating whether a remaining set of the discharge detection unit set corresponding to any of the converter valves, after excluding the inter-valve intersection set, intersects with the set of discharge detection units in an operating state, to obtain a second judgment result; Calculating a logical AND calculation result of the first judgment result and the second judgment result; Calculate the logical NOT calculation result of the logical AND calculation result.

2. The method according to claim 1, characterized in that The detection capability of each discharge detection unit is determined as follows: dividing the detection angle of the discharge detection unit into equal parts; The detection distance of the discharge detection unit at each detection viewing angle is calculated, and the detection distance is the detection capability of the discharge detection unit.

3. The method according to claim 2, characterized in that The detection distance is the detection distance of the discharge detection unit at each detection viewing angle when the discharge amount of the converter valve is the maximum discharge amount of the converter valve's historical discharge fault.

4. A device for locating a converter valve discharge fault, characterized in that: The device is applied to a converter valve discharge fault location system, and is used to implement the method according to any one of claims 1 to 3, wherein the converter valve discharge fault location system includes at least one converter valve and at least one discharge detection unit, and the device includes: a discharge detection unit set determining unit, configured to determine a discharge detection unit set corresponding to each converter valve based on a detection capability of each discharge detection unit and a distance and angle between each converter valve and each discharge detection unit; an action set unit acquisition unit, configured to acquire a set of discharge detection units in an action state when a discharge fault occurs in the at least one converter valve; The discharge fault converter valve positioning unit is used to locate the converter valve with a discharge fault based on the set of discharge detection units corresponding to each converter valve and the set of discharge detection units in an action state.

5. A converter valve discharge fault location system, characterized in that: The converter valve discharge fault locating system includes the device according to claim 4.

6. An electronic device comprising: one or more processing units; a storage unit for storing one or more programs; When the one or more programs are executed by the one or more processing units, the one or more processing units implement the method according to any one of claims 1 to 3.

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