Troubleshooting methods, devices, and electronic equipment for offshore converter stations

Abstract

This application provides a fault handling method, apparatus, and electronic equipment for offshore converter stations. The method includes: identifying faulty objects in the offshore converter station; determining fault handling strategies for the faulty objects based on their fault information; isolating the faulty objects and executing the fault handling strategies to handle the faulty objects. This application does not rely on NBS and GRTS switches, effectively reducing the construction and operation and maintenance costs of offshore converter stations. Fault handling of the offshore converter station, achieved through the isolation of faulty objects, improves the efficiency and optimizes the fault handling effect.

Description

Technical Field

[0001] This application relates to the field of fault handling, and more particularly to a fault handling method, apparatus and electronic equipment for an offshore converter station. Background Technology

[0002] With the development of wind power technology, offshore wind power can be supplied to land by constructing offshore wind power DC transmission systems. In related technologies, offshore wind power DC transmission systems are equipped with both offshore and onshore converter stations. The operation of these stations enables the supply of offshore wind power to land.

[0003] To ensure the safe and stable operation of offshore converter stations, routine operation and maintenance are necessary. However, this process presents challenges, including difficulties and high costs associated with routine equipment maintenance. Summary of the Invention

[0004] The purpose of this application is to at least partially solve one of the technical problems in the aforementioned technologies.

[0005] The first aspect of this application provides a fault handling method for an offshore converter station, comprising: identifying a faulty object of the offshore converter station; determining a fault handling strategy for the faulty object based on fault information of the faulty object; isolating the faulty object and executing the fault handling strategy to handle the faulty object.

[0006] The first aspect of this application provides a fault handling method for an offshore converter station, which also has the following technical features, including:

[0007] According to one embodiment of this application, determining the faulty object of the offshore converter station includes: monitoring the operation process of the offshore converter station; and in response to detecting an operational anomaly, detecting the operation loop of the offshore converter station to determine the faulty object.

[0008] According to one embodiment of this application, determining the fault handling strategy for the faulty object based on the fault information of the faulty object includes: determining the fault level of the faulty object based on the fault information; and determining the fault handling strategy based on the fault level and the faulty object.

[0009] According to one embodiment of this application, after isolating the faulty object, the method further includes: adjusting the operating status of the onshore converter station based on the fault information.

[0010] According to one embodiment of this application, the method further includes: monitoring the communication path between the offshore converter station and the onshore converter station; and adjusting the operating status of the onshore converter station in response to detecting an abnormality in the communication path.

[0011] A second aspect of this application provides a fault handling device for an offshore converter station, comprising: a detection module for identifying a faulty object in the offshore converter station; a determination module for determining a fault handling strategy for the faulty object based on fault information of the faulty object; and a processing module for isolating the faulty object and executing the fault handling strategy to process the faulty object.

[0012] The second aspect of this application provides a fault handling device for an offshore converter station, which further comprises the following technical features:

[0013] According to one embodiment of this application, the detection module is further configured to: monitor the operation process of the offshore converter station; and in response to detecting an operational anomaly, detect the operation loop of the offshore converter station to determine the faulty object.

[0014] According to one embodiment of this application, the determining module is further configured to: determine the fault level of the fault object based on the fault information; and determine the fault handling strategy based on the fault level and the fault object.

[0015] According to one embodiment of this application, the processing module is further configured to: adjust the operating status of the onshore converter station based on the fault information.

[0016] According to one embodiment of this application, the processing module is further configured to: monitor the communication path between the offshore converter station and the onshore converter station; and adjust the operating status of the onshore converter station in response to detecting an abnormality in the communication path.

[0017] A third aspect of this application provides an electronic device, including: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the fault handling method for an offshore converter station provided in the first aspect of this application.

[0018] A fourth aspect of this application provides a non-transitory computer-readable storage medium storing computer instructions for causing the computer to execute the fault handling method for an offshore converter station provided in the first aspect of this application.

[0019] A fifth aspect of this application provides a computer program product that, when executed by an instruction processor, performs the fault handling method for offshore converter stations provided in the first aspect of this application.

[0020] The fault handling method and apparatus for offshore converter stations provided in this application determine the faulty object of the offshore converter station and then determine the corresponding fault handling strategy based on the fault information of the faulty object. Furthermore, the faulty object is isolated, and the corresponding fault handling strategy is executed to achieve repair of the faulty object. This application does not rely on NBS and GRTS switches, effectively reducing the construction and operation and maintenance costs of offshore converter stations. The fault handling of offshore converter stations achieved through faulty object isolation improves the efficiency of fault handling and optimizes the fault handling effect.

[0021] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0023] Figure 1 This is a flowchart illustrating a fault handling method for an offshore converter station according to an embodiment of this application.

[0024] Figure 2 This is a flowchart illustrating a fault handling method for an offshore converter station according to another embodiment of this application.

[0025] Figure 3 This is a flowchart illustrating a fault handling method for an offshore converter station according to another embodiment of this application.

[0026] Figure 4 This is a schematic diagram of the structure of a fault handling device for an offshore converter station according to an embodiment of this application;

[0027] Figure 5 This is a schematic diagram of the structure of a fault handling device for an offshore converter station according to another embodiment of this application;

[0028] Figure 6 This is a block diagram of an electronic device according to an embodiment of this application. Detailed Implementation

[0029] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0030] The following description, with reference to the accompanying drawings, describes a fault handling method, apparatus, electronic device, and storage medium for an offshore converter station according to embodiments of this application.

[0031] Figure 1 This is a flowchart illustrating a fault handling method for an offshore converter station according to an embodiment of this application, as shown below. Figure 1 As shown, the method includes:

[0032] S101, Identify the faulty component of the offshore converter station.

[0033] In practice, in order to enable the offshore wind power DC transmission system to supply electricity to the land, an offshore converter station is set up in the offshore wind power DC transmission system. Based on the operation of the offshore converter station, the transmission of offshore wind power to the land is realized.

[0034] Furthermore, in order to ensure the normal operation of the offshore converter station, the control system of the offshore converter station can be used to monitor the faults that occur during the operation of the offshore converter station, and then the faulty object can be identified and determined when the offshore converter station malfunctions.

[0035] Optionally, the faulty object of an offshore converter station may include a faulty pole or other components that are malfunctioning and unable to operate.

[0036] S102, Determine the fault handling strategy for the faulty object based on the fault information of the faulty object.

[0037] In this embodiment of the application, the cause of the failure of the faulty object in the offshore converter station can be analyzed, and then the fault information corresponding to the faulty object can be determined.

[0038] The fault information may include the cause of the fault, the type of fault, changes in relevant parameter information, etc.

[0039] Furthermore, based on the fault information of the faulty object, the fault handling strategy can be determined.

[0040] For example, based on information such as the cause and type of the fault in the fault information, it is possible to determine how to resolve the current operational fault of the offshore converter station and thus determine the corresponding fault handling strategy.

[0041] The fault handling strategy may include information such as the execution steps of fault handling and the objects to be handled by fault handling.

[0042] S103, Isolate the faulty object and execute the fault handling strategy to handle the faulty object.

[0043] In this embodiment of the application, when a fault occurs during the operation of the offshore converter station, the faulty object may have a certain impact on other components and equipment of the offshore converter station.

[0044] Therefore, faulty components can be isolated to reduce their impact on surrounding equipment and components. For example, by defining a fault terminal for a faulty electronic component, the fault terminal can be locked out to isolate it.

[0045] Furthermore, after isolating the faulty object, it can be processed based on a fault handling strategy. This can be understood as follows: by isolating the faulty object, the offshore converter can be controlled to enter a relatively stable state, thereby providing a usable processing environment for fault handling at the offshore converter station.

[0046] It should be noted that the offshore converter station in this embodiment does not rely on a neutral bus switch (NBS) and a ground return transfer switch (GRTS). Fault handling of the offshore converter station is achieved by isolating the faulty object and executing the fault handling strategy.

[0047] The fault handling method for offshore converter stations proposed in this application involves identifying the faulty object within the offshore converter station and then determining the corresponding fault handling strategy based on the fault information of the faulty object. Furthermore, the faulty object is isolated, and the corresponding fault handling strategy is executed to repair the faulty object. This application does not rely on NBS and GRTS switches, effectively reducing the construction and operation costs of offshore converter stations. The fault handling of offshore converter stations achieved through faulty object isolation improves the efficiency of fault handling and optimizes the fault handling effect.

[0048] In the above embodiments, the determination of the fault object and the fault handling strategy can be combined with... Figure 2 To understand further, Figure 2 This is a flowchart illustrating a fault handling method for an offshore converter station according to another embodiment of this application, as shown below. Figure 2 As shown, the method includes:

[0049] S201 monitors the operation of offshore converter stations.

[0050] In practice, the operation of offshore converter stations can be monitored, and fault monitoring of offshore converter stations can be achieved by monitoring their operating status.

[0051] The offshore converter station has multiple operating nodes, and the operating status and other relevant information of each operating node can be monitored, and the monitoring results can be returned to the control system of the offshore converter station in real time.

[0052] Optionally, a corresponding display interface can be configured in the control system to display the operating status and other relevant information of each operating node, thereby realizing the monitoring of the operation process of the offshore converter station.

[0053] S202, in response to the detection of operational anomalies, inspects the operational loop of the offshore converter station to identify the faulty component.

[0054] In this embodiment of the application, when abnormalities are detected in the operating status and other related information of the offshore converter station, it can be determined that a fault has occurred in the current operating loop of the offshore converter station.

[0055] Furthermore, a corresponding detection system can be configured for the offshore converter station. The detection system can be used to detect faults in the operating loop of the offshore converter station. Based on the detection results, the faulty component can be identified and identified as the faulty object of the offshore circulation station.

[0056] Optionally, the detection system can divide the corresponding fault detection range based on the monitored abnormal operating nodes, and further perform fault detection on the divided fault detection range to identify the fault object.

[0057] The system can transmit the determined fault detection range and the progress of fault detection to the control system and display it on the interface to monitor the progress of fault detection.

[0058] S203, Obtain fault information and determine the fault level of the faulty object based on the fault information.

[0059] In this embodiment, fault information of a faulty object can be obtained based on the detection of the operating loop of the offshore converter station. Optionally, relevant attributes of the faulty object can be read, and relevant fault information of the faulty object can be determined by comparing the changes in attribute parameters before and after the fault occurred.

[0060] Furthermore, the fault level corresponding to the faulty object can be determined based on the fault information. The fault level can be set based on the degree of impact of the fault on the offshore converter station.

[0061] S204. Determine the fault handling strategy based on the fault level and the fault object.

[0062] In this embodiment of the application, the current state of the faulty offshore converter station can be assessed based on the determined fault level in order to determine the corresponding fault handling strategy.

[0063] Optionally, when the fault level is high, it can be determined that the offshore converter station currently experiencing the fault is significantly affected by the fault. For higher-level faults, relevant green channels can be activated to enable rapid handling of the faulty object.

[0064] The fault handling method for offshore converter stations proposed in this application monitors the operation of the offshore converter station. When an operational anomaly is detected, the operating loop is inspected to identify the faulty component. Furthermore, after obtaining the fault information of the faulty component, the corresponding fault level is determined based on the fault information, thereby determining the fault handling strategy. This application does not rely on NBS and GRTS switches, effectively reducing the construction and operation and maintenance costs of offshore converter stations. Real-time monitoring of the operation process improves the efficiency of fault detection. Setting corresponding fault handling strategies based on fault information enhances the effectiveness and applicability of the fault handling strategy, optimizing the fault handling effect for offshore converter stations.

[0065] In practice, offshore converter stations have corresponding onshore converter stations. When an offshore converter station malfunctions, it can be combined with... Figure 3 Understanding the relevant processes of onshore converter stations Figure 3 This is a flowchart illustrating a fault handling method for an offshore converter station according to another embodiment of this application, as shown below. Figure 3 As shown, the method includes:

[0066] S301, based on the fault information, adjust the operating status of the onshore converter station.

[0067] In practice, offshore converter stations have matching onshore converter stations. Through the flexible DC transmission system built between the two, offshore wind power can be transmitted to the land. When the offshore converter station fails, the operation of the flexible DC transmission system built between the two may be abnormal.

[0068] In scenarios where offshore converter stations malfunction, onshore converter stations may enter an ineffective operational state. During this ineffective operation, residual current may remain in the operating loop of the onshore converter station, causing some degree of wear and tear on its related components and equipment.

[0069] Optionally, when a fault occurs at the offshore converter station, the onshore converter station can receive fault communication information from the offshore converter station through the communication system established between the offshore and onshore converter stations.

[0070] Furthermore, the faulty objects and fault information of the marine circulation station can be obtained from the received fault communication information. The onshore converter station then processes its relevant components and equipment based on the received faulty objects and fault information from the marine converter station.

[0071] The onshore circulation station is equipped with NBS switches and GRTS switches.

[0072] Optionally, based on the fault object of the offshore converter station, the fault matching object of the onshore circulating station is determined, and the fault matching object is blocked to achieve polar isolation of the onshore converter station. The fault residual current in the switching loop of the NBS switch and GRTS switch is disconnected, thereby realizing the corresponding processing of the onshore converter station.

[0073] In this embodiment of the application, the communication path between the offshore converter station and the onshore converter station may be malfunctioning. In this scenario, the onshore converter station cannot obtain relevant information about the offshore converter station and cannot adjust its own operating status based on the status of the offshore converter station.

[0074] Furthermore, the communication channels between the offshore and onshore converter stations are monitored, and in response to the detection of an anomaly in the communication channel, the onshore converter station is shut down.

[0075] Optionally, a set monitoring signal can be configured on the communication path. This signal is transmitted based on a set frequency, and the status of the communication path between the offshore converter station and the onshore converter station can be determined based on the transmission status of this monitoring signal. Specifically, when the transmission of this signal is abnormal, it can be determined that the current communication path is abnormal.

[0076] In scenarios where communication channels are abnormal, to avoid operational losses at the land-based converter station, the NBS switch and GRTS switch of the land-based converter station can be disconnected, causing the operating loop of the land-based converter station to enter an open circuit, thereby stopping the operation of the land-based converter station.

[0077] The fault handling method for offshore converter stations proposed in this application controls the operating status of onshore converter stations based on the fault information of offshore converter stations, thereby reducing the operating losses of onshore converter stations and achieving the goal of saving resources.

[0078] Corresponding to the fault handling methods for offshore converter stations proposed in the above embodiments, an embodiment of this application also proposes a fault handling device for offshore converter stations. Since the fault handling device for offshore converter stations proposed in this application corresponds to the fault handling methods for offshore converter stations proposed in the above embodiments, the implementation methods of the above-mentioned fault handling methods for offshore converter stations are also applicable to the fault handling device for offshore converter stations proposed in this application, and will not be described in detail in the following embodiments.

[0079] Figure 4 This is a schematic diagram of the structure of a fault handling device for an offshore converter station according to an embodiment of this application, as shown below. Figure 4 As shown, the fault handling device 400 for an offshore converter station includes a detection module 41, a determination module 42, and a processing module 43, wherein:

[0080] Detection module 41 is used to identify the faulty object of the offshore converter station;

[0081] The determination module 42 is used to determine the fault handling strategy for the faulty object based on the fault information of the faulty object;

[0082] Processing module 43 is used to isolate faulty objects and execute fault handling strategies to process the faulty objects.

[0083] Figure 5 This is a schematic diagram of the structure of a fault handling device for an offshore converter station according to an embodiment of this application, as shown below. Figure 5 As shown, the fault handling device 500 for an offshore converter station includes a detection module 51, a determination module 52, and a processing module 53, wherein:

[0084] It should be noted that the detection module 41, determination module 42, and processing module 43 have the same structure and function as the detection module 51, determination module 52, and processing module 53.

[0085] In this embodiment of the application, the detection module 51 is further configured to: monitor the operation process of the offshore converter station; and, in response to detecting an operational anomaly, detect the operation loop of the offshore converter station to determine the faulty object.

[0086] In this embodiment of the application, the determining module 52 is further configured to: determine the fault level of the fault object based on the fault information; and determine the fault handling strategy based on the fault level and the fault object.

[0087] In this embodiment of the application, the processing module 53 is further configured to: adjust the operating status of the onshore converter station based on the fault information.

[0088] In this embodiment of the application, the processing module 53 is further configured to: monitor the communication path between the offshore converter station and the onshore converter station; and adjust the operating status of the onshore converter station in response to the detection of an abnormality in the communication path.

[0089] The fault handling device for offshore converter stations proposed in this application determines the faulty object of the offshore converter station and then determines the corresponding fault handling strategy based on the fault information of the faulty object. Furthermore, the faulty object is isolated, and the corresponding fault handling strategy is executed to achieve repair of the faulty object. This application does not rely on NBS and GRTS switches, effectively reducing the construction and operation costs of offshore converter stations. The fault handling of offshore converter stations achieved through faulty object isolation improves the efficiency of fault handling and optimizes the fault handling effect.

[0090] To achieve the above embodiments, this application also provides an electronic device, a computer-readable storage medium, and a computer program product.

[0091] Figure 6This is a block diagram of an electronic device according to an embodiment of this application, based on... Figure 6 The electronic device shown can perform Figures 1 to 3 The embodiment of the fault handling method for offshore converter stations.

[0092] To implement the above embodiments, this application also provides a non-transitory computer-readable storage medium storing computer instructions for causing a computer to execute... Figures 1 to 3 The embodiment of the fault handling method for offshore converter stations.

[0093] To implement the above embodiments, this application also provides a computer program product that, when the instruction processor in the computer program product is executed, performs... Figures 1 to 3 The embodiment of the fault handling method for offshore converter stations.

[0094] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0095] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0096] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0097] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0098] It should be understood that various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0099] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0100] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0101] The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc. Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A method of fault handling for a marine converter station, characterized by, The offshore converter station is not configured with a neutral bus switch (NBS) and a ground return switch (GRTS), and the method comprises: monitoring running processes corresponding to multiple running nodes of the offshore converter station; in response to monitoring a running exception, detecting a running loop of the offshore converter station to determine a fault object of the offshore converter station; determining a fault handling strategy of the fault object according to fault information of the fault object; isolating the fault object and executing the fault handling strategy to handle the fault object; wherein the onshore converter station is configured with an NBS switch and a GRTS switch, and after the fault object is isolated, the method further comprises: based on the fault information, adjusting a running state of the onshore converter station and disconnecting the NBS switch and the GRTS switch.

2. The method of claim 1, wherein, The determination of the fault handling strategy of the fault object according to the fault information of the fault object comprises: determining a fault level of the fault object according to the fault information; based on the fault level and the fault object, determining the fault handling strategy.

3. The method of claim 1, wherein, The method further comprises: monitoring a communication path of the offshore converter station and the onshore converter station; in response to monitoring an exception of the communication path, adjusting a running state of the onshore converter station.

4. A fault handling device for a marine converter station, characterized in that The offshore converter station is not configured with a neutral bus switch (NBS) and a ground return switch (GRTS), and the device comprises: a detection module configured to monitor running processes corresponding to multiple running nodes of the offshore converter station and, in response to monitoring a running exception, detect a running loop of the offshore converter station; a determination module configured to determine a fault handling strategy of a fault object according to fault information of the fault object; a processing module configured to isolate the fault object and execute the fault handling strategy to handle the fault object; wherein the onshore converter station is configured with an NBS switch and a GRTS switch, and the processing module is further configured to, based on the fault information, adjust a running state of the onshore converter station and disconnect the NBS switch and the GRTS switch.

5. The apparatus of claim 4, wherein, The determination module is further configured to: determine a fault level of the fault object according to the fault information; based on the fault level and the fault object, determine the fault handling strategy.

6. The apparatus of claim 4, wherein, The processing module is further configured to: monitor a communication path of the offshore converter station and the onshore converter station; in response to monitoring an exception of the communication path, adjust a running state of the onshore converter station.

7. An electronic device, comprising: comprises: at least one processor; and a memory connected in communication with the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the method of any one of claims 1-3.

8. A non-transitory computer-readable storage medium having stored thereon computer instructions, wherein, The computer instructions are used to enable the computer to execute the method of any one of claims 1-3.

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