Protection system for improving fault tolerance rate of rectifier

Abstract

The invention discloses a protection system for improving the fault tolerance rate of a rectifier, and relates to the related field of electrical engineering, and the system comprises a basic configuration information reading module which is used for reading the basic configuration information of a target rectifier; the incremental learning module is used for performing incremental learning on the PID self-regulation model; the fault-tolerant redundancy topology configuration module is used for configuring a fault-tolerant redundancy topology; the standby trigger mechanism generation module is used for generating a standby trigger mechanism; the scene working condition data receiving module is used for monitoring and receiving scene working condition data of a target rectifier; and the fault-tolerant protection module is used for identifying scene working condition data, performing deviation fault-tolerant protection on the target rectifier in combination with a PID self-regulation model, and performing fault-tolerant protection on the target rectifier in combination with a standby trigger mechanism. The technical problem of low fault-tolerant rate of existing rectifier fault-tolerant protection is solved, and the technical effects of improving the fault-tolerant rate of the rectifier and further ensuring stable operation of a power system are achieved.

Description

Technical Field

[0001] The present application relates to the field of electrical engineering, and in particular to a protection system for improving the fault tolerance of a rectifier. Background Art

[0002] In the power system, the rectifier is a key component, and its stability and fault tolerance are crucial to ensure the normal operation of the entire system. When the fault tolerance of the rectifier is low, once a fault or abnormal situation occurs, it may cause system performance degradation, reduced efficiency, or even cause more serious failures. Existing methods usually deal with rectifier failure problems through simple fault detection and isolation mechanisms. When a fault is detected, some basic fault-tolerant measures are taken, such as switching backup components or adjusting control parameters. However, these methods often only focus on a single fault type and lack an in-depth understanding and prediction capability of the rectifier's operating status, resulting in the inability to quickly take effective fault-tolerant measures when a fault occurs.

[0003] In the current related technologies, due to the lack of a comprehensive and intelligent fault-tolerant protection strategy, there is a technical problem of low fault tolerance of the rectifier. Summary of the invention

[0004] The present application provides a protection system for improving the fault tolerance of the rectifier. It adopts technical means such as reading basic configuration information, mining abnormal fault records, training PID self-control models, configuring fault-tolerant redundant topologies, and generating backup trigger mechanisms. It achieves comprehensive optimization and improvement of the rectifier performance, achieves the technical effect of improving the fault tolerance of the rectifier, and thus ensuring the stable operation of the power system.

[0005] The present application provides a protection system for improving the fault tolerance of a rectifier, comprising: A basic configuration information reading module, wherein the basic configuration information reading module is used to read basic configuration information of a target rectifier, wherein the basic configuration information includes circuit configuration, component configuration and control system configuration; An incremental learning module, the incremental learning module is used to mine abnormal fault records of rectifiers, train a PID self-regulating model, and perform incremental learning on the PID self-regulating model based on the basic configuration information, wherein the PID self-regulating model includes a distortion repair branch and a deviation correction branch; A fault-tolerant redundant topology configuration module, wherein the fault-tolerant redundant topology configuration module is used to traverse the basic configuration information and configure a fault-tolerant redundant topology, wherein the fault-tolerant redundant topology includes a circuit fault-tolerant topology and a system redundant topology; A backup trigger mechanism generation module, the backup trigger mechanism generation module is used to generate a backup trigger mechanism based on the fault-tolerant redundant topology to configure the target rectifier; A scenario operating condition data receiving module, the scenario operating condition data receiving module is used to monitor and receive scenario operating condition data of the target rectifier, the scenario operating condition data includes electrical data, operation data and environmental data, and the electrical data includes AC / DC conversion data; A fault-tolerant protection module is used to identify the scenario operating condition data, perform deviation fault-tolerant protection of the target rectifier in combination with the PID self-regulation model, and perform fault fault-tolerant protection of the target rectifier in combination with the backup trigger mechanism.

[0006] In a possible implementation, the incremental learning module includes: A self-fault-tolerant characteristic acquisition unit, the self-fault-tolerant characteristic acquisition unit is used to exchange the self-fault-tolerant characteristic of the target rectifier, the self-fault-tolerant characteristic is determined based on the factory configuration; A differentiation analysis unit, the differentiation analysis unit is used to traverse the abnormal fault records of the rectifier, perform differentiation analysis in combination with the self-fault-tolerant characteristics, and measure the pre-management fault-tolerant characteristics, the pre-management fault-tolerant characteristics include the mapped fault-tolerant type and fault-tolerant degree, wherein the pre-management fault-tolerant characteristics are used to perform training constraints on the PID self-regulation model and structural configuration constraints on the fault-tolerant redundant topology.

[0007] In a possible implementation, the basic configuration information reading module includes: A front-end control configuration unit is used to perform front-end control configuration of the control system on the PID self-regulating model and the backup trigger mechanism.

[0008] In a possible implementation, the fault-tolerant protection module includes: An error-causing feature determination unit, the error-causing feature determination unit is used to identify the scene condition data and determine an error-causing feature, the error-causing feature including an error-causing factor and a factor feature value; A pre-adjustment type determination unit, the pre-adjustment type determination unit is used to traverse the error-causing features, locate and cluster the abnormality types, and determine the pre-adjustment type, the pre-adjustment type is at least one of a deviation type and a fault type, and the deviation type includes at least one of a distortion type and a deviation type; A fault-tolerant protection unit is used to perform fault-tolerant protection of the target rectifier based on the pre-adjustment type.

[0009] In a possible implementation, the pre-adjustment type determination unit includes: A pre-adjustment branch activation subunit, the pre-adjustment branch activation unit is used to activate the pre-adjustment branch in the PID self-regulation model based on the pre-adjustment type, wherein the pre-adjustment type corresponds to the pre-adjustment branch mapping; A calibration control data determination subunit is configured to adjust the pre-control data of the target rectifier based on the pre-adjustment branch to determine the calibration control data.

[0010] In a possible implementation, the pre-adjustment type determination unit includes: An operation stability acquisition subunit, the operation stability acquisition subunit is used to exchange the operation stability of the target rectifier, the operation stability includes power supply stability and self-stability; a control fluctuation interval determination subunit, the control fluctuation interval determination subunit being used to determine a control fluctuation interval based on the operation stability; An external expansion adjustment subunit, the external expansion adjustment subunit is used to perform external expansion adjustment on the calibration control data based on the control fluctuation range.

[0011] In a possible implementation, the pre-adjustment type determination unit includes: An identification and traversal subunit, wherein the identification and traversal subunit is used to identify the pre-adjustment type, identify the pre-adjustment range of the target rectifier, and traverse the fault-tolerant redundant topology to locate the access topology partition, wherein the access topology partition includes at least one; A cross-connection subunit, the cross-connection subunit is used to perform a cross-connection operation on the preset range and the access topology partition based on the standby trigger mechanism, wherein the cross-connection criterion is a disconnection operation of the preset range of the target rectifier and a connection operation of the access topology partition; An operation management subunit is used to perform operation management based on the pre-control data of the target rectifier after executing the cross-connection operation.

[0012] In a possible implementation, the fault-tolerant protection module includes: A periodic fault tolerance rate determination unit, the periodic fault tolerance rate determination unit is used to read the fault tolerance protection record within a predetermined period of the target rectifier to determine the periodic fault tolerance rate; An effective fault-tolerant sample mining unit, the effective fault-tolerant sample mining unit is used to determine whether the periodic fault-tolerant rate meets the fault-tolerant threshold, and if not, traverse the fault-tolerant protection records to mine effective fault-tolerant samples; An incremental learning unit, the incremental learning unit being used to perform incremental learning on the PID self-regulation model and the backup trigger mechanism based on the effective fault-tolerant samples; Among them, the effective fault-tolerant sample mining unit includes: A mining standard determination subunit, wherein the mining standard determination subunit is used to use the error frequency as a first mining standard and the error scope and error level as a second mining standard; The effective fault-tolerant sample determination subunit is used to combine the first mining standard and the second mining standard, integrate the fault-tolerant protection records in a positive sequence and extract a preset proportion to determine the effective fault-tolerant sample.

[0013] A protection system for improving the fault tolerance rate of a rectifier proposed in this application is proposed. The basic configuration information of the target rectifier is read through the basic configuration information reading module. The basic configuration information includes circuit configuration, component configuration and control system configuration. The rectifier abnormal fault records are mined through the incremental learning module to train the PID self-regulation model. The PID self-regulation model is incrementally learned based on the basic configuration information. The PID self-regulation model includes a distortion repair branch and a deviation correction branch. The basic configuration information is traversed through the fault-tolerant redundant topology configuration module to configure the fault-tolerant redundant topology. The fault-tolerant redundant topology includes a circuit fault-tolerant topology and a system redundancy topology. Topology, generate a backup trigger mechanism based on a fault-tolerant redundant topology through a backup trigger mechanism generation module, configure the target rectifier, monitor and receive the scenario condition data of the target rectifier through the scenario condition data receiving module, the scenario condition data includes electrical data, operation data and environmental data, the electrical data includes AC / DC conversion data, identify the scenario condition data through the fault-tolerant protection module, and perform deviation fault-tolerant protection of the target rectifier in combination with the PID self-regulation model, and perform fault fault-tolerant protection of the target rectifier in combination with the backup trigger mechanism, thereby achieving the technical effect of improving the fault tolerance rate of the rectifier and thereby ensuring the stable operation of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the accompanying drawings of the embodiment of the present invention will be briefly introduced below. A flow chart is used in the present application to illustrate the operations performed by the system according to the embodiment of the present application. It should be understood that the preceding or following operations are not necessarily performed accurately in order. On the contrary, various steps can be processed in reverse order or simultaneously as needed. At the same time, other operations can also be added to these processes, or one or more operations can be removed from these processes.

[0015] Figure 1 A schematic diagram of the structure of a protection system for improving the fault tolerance of a rectifier provided in an embodiment of the present application; Figure 2 A structural schematic diagram of a fault-tolerant protection module of a protection system for improving the fault tolerance of a rectifier provided in an embodiment of the present application.

[0016] Explanation of the accompanying drawings: basic configuration information reading module 10, incremental learning module 20, fault-tolerant redundant topology configuration module 30, backup trigger mechanism generation module 40, scenario operating condition data receiving module 50, fault-tolerant protection module 60. DETAILED DESCRIPTION

[0017] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below.

[0018] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings. The described embodiments should not be regarded as limiting the present application. All other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of this application.

[0019] In the following description, reference is made to "some embodiments", which describe a subset of all possible embodiments, but it is 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, and the terms "first\second" involved are merely to distinguish similar objects and do not represent a specific ordering of objects. The terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, system, product, or server that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or modules that are not clearly listed or inherent to these processes, products, or devices. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by technicians in the technical field of this application. The terms used herein are for the purpose of describing the embodiments of the present application only.

[0020] The embodiment of the present application provides a protection system for improving the fault tolerance of a rectifier, such as Figure 1 As shown, the system comprises: The basic configuration information reading module 10 is used to read the basic configuration information of the target rectifier, and the basic configuration information includes circuit configuration, component configuration and control system configuration. Specifically, the basic configuration information reading module 10 communicates with the target rectifier to obtain its basic configuration information, including circuit configuration, component configuration and control system configuration, wherein the circuit configuration refers to the circuit topology, connection method and key circuit parameters of the target rectifier; the component configuration covers the models, specifications and performance parameters of various components used inside the target rectifier; the control system configuration includes the control strategy, algorithm and parameter setting of the target rectifier. After reading the basic configuration information, the basic configuration information reading module 10 parses and processes it, converts the original basic configuration information into a format recognizable by the system, and extracts key features and parameters, and passes the parsed information as input to the subsequent incremental learning module 20 and the fault-tolerant redundant topology configuration module 30.

[0021] In a possible implementation, the basic configuration information reading module 10 includes: a front-end control configuration unit, which is used to perform front-end control configuration of the control system for the PID self-regulation model and the backup trigger mechanism. Specifically, the front-end control configuration unit reads the basic configuration information from the target rectifier, including circuit configuration, component configuration and control system configuration, and then parses the read control system configuration to determine the structure, function and parameter setting of the control system, and configures the PID self-regulation model based on the parsed control system configuration, including setting the parameters of the PID model, defining the input and output interfaces, configuring the control strategy, etc., to ensure that the PID self-regulation model can be accurately regulated according to the requirements of the actual control system. In addition to the PID self-regulation model, the front-end control configuration unit also configures the backup trigger mechanism, including setting the trigger conditions of the backup trigger mechanism (such as main control system failure, performance degradation, etc.), defining the startup sequence and logic of the backup control system, and ensuring that the backup trigger mechanism can quickly and accurately take over the work when the main control system fails. After completing the configuration of the PID self-regulation model and the backup trigger mechanism, the front-end control configuration unit generates corresponding control configuration parameters, which are used to guide the subsequent control system operation and fault handling. This implementation method, by setting up a front-end control configuration unit, can perform targeted configuration of the PID self-regulation model and the backup trigger mechanism according to the basic configuration information, so that the PID self-regulation model and the backup trigger mechanism are more adapted to the characteristics and operating environment of the target rectifier, thereby achieving the technical effect of improving the reliability, stability and performance of the target rectifier control system.

[0022] Incremental learning module 20, the incremental learning module 20 is used to mine abnormal fault records of rectifiers, train PID self-regulation model, and incrementally learn the PID self-regulation model based on the basic configuration information. The PID self-regulation model includes a distortion repair branch and a deviation correction branch. Specifically, the incremental learning module 20 extracts abnormal fault records of rectifiers from historical data. The abnormal fault records of rectifiers include various fault conditions that occur during the operation of the rectifier, such as voltage fluctuations, current anomalies, etc. By analyzing the abnormal fault records of rectifiers, the characteristics, causes and effects of the faults are extracted. The PID self-regulation model is trained using the abnormal fault records of rectifiers, wherein the PID self-regulation model is an algorithm model for controlling the operation of the rectifier. By performing proportional, integral and differential processing on the error signal, a control signal is output to adjust the operating state of the rectifier. During the training process, the parameters and structure of the PID self-regulation model are continuously optimized so that it can more accurately identify faults and take corresponding control measures. The incremental learning module 20 also performs incremental learning on the PID self-regulating model according to the basic configuration information of the target rectifier, wherein the basic configuration information includes the circuit design, component parameters, control system settings and other information of the target rectifier. By analyzing these information, the characteristics and behaviors of the target rectifier are determined, and then the PID self-regulating model is optimized in a targeted manner. The incremental learning process is a process of continuous iteration and optimization, which can make the PID self-regulating model gradually adapt to the characteristics of the target rectifier and improve the accuracy and stability of control. The PID self-regulating model includes a distortion repair branch and a deviation correction branch, wherein the distortion repair branch is used to repair the distortion phenomenon in the system, such as waveform distortion, phase shift, etc. When these distortions are detected, the distortion repair branch quickly takes corresponding measures to repair them to ensure the normal operation of the system; the deviation correction branch is used to correct the deviation in the system, such as voltage deviation, current deviation, etc. By continuously adjusting the control signal, the deviation correction branch can make the output of the system gradually approach the expected value to achieve precise control.

[0023] In a possible implementation, the incremental learning module 20 includes: a self-fault-tolerant characteristic acquisition unit, the self-fault-tolerant characteristic acquisition unit is used to interact with the self-fault-tolerant characteristic of the target rectifier, and the self-fault-tolerant characteristic is determined based on the factory configuration. Specifically, the self-fault-tolerant characteristic acquisition unit analyzes and extracts the self-fault-tolerant characteristic of the target rectifier from the factory configuration (configuration information set at the factory, including hardware parameters, software settings, etc.), and the self-fault-tolerant characteristic is some characteristics of the target rectifier itself that have been determined during the design and manufacturing process and can automatically respond to faults or errors to a certain extent. A differential analysis unit, the differential analysis unit is used to traverse the abnormal fault records of the rectifier, perform differential analysis in combination with the self-fault-tolerant characteristic, and measure the pre-management fault-tolerant characteristic, the pre-management fault-tolerant characteristic includes the mapped fault tolerance type and fault tolerance, wherein the pre-management fault-tolerant characteristic is used to perform the training constraints of the PID self-regulation model and the structural configuration constraints of the fault-tolerant redundant topology. Specifically, the differential analysis unit traverses all stored rectifier abnormal fault records, and for each rectifier abnormal fault record, combined with the information obtained from the self-fault-tolerant characteristic acquisition unit, performs differential analysis, and finds out fault conditions that exceed the self-fault-tolerant capability by comparing and analyzing the differences between the rectifier abnormal fault records and the self-fault-tolerant characteristic data. Based on the results of the differential analysis, the pre-management fault-tolerant characteristics are measured. The pre-management fault-tolerant characteristics are some potential fault-tolerant characteristics that need to be managed in advance obtained through differential analysis, including the mapped fault-tolerant type (such as hardware redundancy, software fault-tolerant, etc.) and fault tolerance (i.e., the degree of fault that the fault-tolerant measure can tolerate). The measured pre-management fault-tolerant characteristics are used as training constraints to guide the training process of the PID self-regulation model to ensure that the model can make an appropriate response when facing actual faults; according to the pre-management fault-tolerant characteristics, guidance is provided for the configuration of the fault-tolerant redundant topology to ensure that the topological structure can meet the required fault-tolerant capability. This implementation method achieves more refined management and optimization of the training process of the PID self-control model by setting up a self-fault-tolerant characteristic acquisition unit and a differential analysis unit, thereby achieving the technical effect of improving the adaptability and accuracy of the PID self-control model, enabling it to better cope with various complex fault conditions and improving the overall fault tolerance capability of the target rectifier.

[0024] A fault-tolerant redundant topology configuration module 30 is used to traverse the basic configuration information and configure a fault-tolerant redundant topology, wherein the fault-tolerant redundant topology includes a circuit fault-tolerant topology and a system redundant topology. Among them, the fault-tolerant redundant topology is a topological structure that improves the fault tolerance of the system by configuring redundant components or systems. When a main component or system fails, the redundant part can quickly take over the work to ensure the continuity and stability of the system; the circuit fault-tolerant topology is a redundant configuration designed at the circuit level, focusing on the redundancy and fault isolation mechanism of key components in the circuit; the system redundant topology is a redundant configuration designed at the system level, including a backup control system, a backup rectifier, etc., focusing on the redundancy and fault recovery capability of the entire system. Specifically, the fault-tolerant redundant topology configuration module 30 traverses the basic configuration information and parses information such as the circuit configuration, component configuration, and control system configuration of the target rectifier. According to the analyzed circuit configuration, the key circuit parts in the target rectifier are identified, such as the power input circuit, the power conversion circuit, the output filter circuit, etc. For the vulnerable components in the key circuit, such as the power switch tube, the capacitor, the inductor, etc., redundant components are configured to ensure that they can automatically switch to the backup components when the components fail to maintain the normal operation of the circuit. The fault detection mechanism is designed to monitor the working status of the key circuit in real time. Once a fault is detected, the fault circuit is quickly isolated and the redundant circuit is activated. At the system level, a backup control system or backup rectifier is designed to ensure that when the main system fails, the backup system can quickly take over the work, establish a communication and synchronization mechanism between the main and backup systems, ensure data consistency and seamless switching of the system, and formulate a detailed fault recovery strategy, including fault identification, isolation, recovery and other steps, to ensure that the normal operation of the system can be quickly restored after the fault occurs. The configured fault-tolerant redundant topology information is stored in the internal database and output to the backup trigger mechanism generation module 40 and other related modules for subsequent use.

[0025] A backup trigger mechanism generation module 40 is used to generate a backup trigger mechanism based on the fault-tolerant redundant topology to configure the target rectifier. The backup trigger mechanism refers to a mechanism that automatically starts the backup system or takes corresponding measures when a fault occurs in the main system or a key part, and ensures that the work can be taken over quickly and accurately when needed based on preset trigger conditions and strategies. Specifically, the backup trigger mechanism generation module 40 receives the fault-tolerant redundant topology information of the fault-tolerant redundant topology configuration module 30, parses the fault-tolerant redundant topology information, identifies the switching point, trigger conditions and control logic between the main system and the backup system, and determines the connection relationship between the structure and components and the working principle of the redundant mechanism through parsing. Based on the parsed topological structure and system requirements, the specific trigger conditions of the backup trigger mechanism are determined, such as degradation of the main system performance, failure of key components, and specific parameters out of range. Based on the specific trigger conditions, a backup trigger strategy is further generated, including defining the startup sequence of the backup system, the control logic during the switching process, and the working mode after the backup system takes over. After the backup trigger strategy is generated, the configuration information is output to the target rectifier for configuration, including modifying the control software of the target rectifier, adjusting the circuit connection, setting parameters, etc., to ensure that the backup trigger mechanism can take effect in actual operation.

[0026] The scenario operating data receiving module 50 is used to monitor and receive the scenario operating data of the target rectifier, wherein the scenario operating data includes electrical data, operating data and environmental data, and the electrical data includes AC / DC conversion data. Specifically, the scenario operating data receiving module 50 performs an initialization operation, establishes a communication connection with the target rectifier, and monitors the scenario operating data of the target rectifier in real time. The scenario operating data refers to the real-time data of the target rectifier under different working scenarios and conditions, including electrical data, operating data and environmental data, which reflect the operating status and performance of the target rectifier. Among them, electrical data is data related to electricity, such as voltage, current, power, etc. The electrical data includes AC-DC conversion data, which is the data involved in the process of the target rectifier converting AC power into DC power, including conversion efficiency, input and output voltage and current and other parameters, which are used to evaluate the performance of the target rectifier and optimize the power conversion process; operating data is data describing the operating status of the target rectifier, such as switch status, temperature, fan speed, etc., which reflect the real-time operating status of the target rectifier; environmental data is data reflecting the environmental conditions of the target rectifier, such as temperature, humidity, air pressure, etc.

[0027] A fault-tolerant protection module 60, the fault-tolerant protection module 60 is used to identify the scenario operating condition data, perform deviation fault-tolerant protection of the target rectifier in combination with the PID self-regulation model, and perform fault fault-tolerant protection of the target rectifier in combination with the backup trigger mechanism. Among them, the deviation fault-tolerant protection is a protection measure that corrects the deviation by adjusting the control parameters or taking other measures to ensure the normal operation of the rectifier when the performance of the target rectifier deviates; the fault fault-tolerant protection is a protection measure that ensures the continuity and stability of the system by switching to a backup system or taking other fault recovery measures when a target rectifier fails. Specifically, the fault-tolerant protection module 60 receives the scenario operating condition data from the scenario operating condition data receiving module 50, identifies and analyzes the scenario operating condition data through a specific algorithm or model, and extracts key information related to the performance of the target rectifier. Combined with the PID self-regulation model, the performance of the target rectifier is evaluated in real time. If the performance of the target rectifier is detected to be biased (such as unstable output current or voltage), the bias fault-tolerant protection mechanism is started, including adjusting the parameters of the PID controller (such as proportional, integral and differential terms), etc., to optimize the performance of the target rectifier so that the output of the target rectifier is closer to the expected value. When it is identified that the target rectifier has a fault (such as component damage, circuit short circuit, etc.), the fault fault-tolerant protection mechanism is triggered to evaluate the severity and scope of the fault, and determine whether it is necessary to switch to the backup system. If switching is required, the backup trigger mechanism is activated, and the backup system is started and takes over the work of the target rectifier according to the preset trigger conditions and strategies. The embodiment of the present application adopts technical means such as reading basic configuration information, mining abnormal fault records, training PID self-regulation models, configuring fault-tolerant redundant topologies, and generating backup trigger mechanisms to achieve comprehensive optimization and improvement of rectifier performance, and achieve the technical effect of improving the fault tolerance of the rectifier and thus ensuring the stable operation of the power system.

[0028] In a possible implementation, the fault-tolerant protection module 60 includes: an error-causing characteristic determination unit, the error-causing characteristic determination unit is used to identify the scene condition data and determine the error-causing characteristics, and the error-causing characteristics include error factors and factor characteristic values. Among them, the error-causing characteristics refer to the factors that cause deviation or failure of the target rectifier and their corresponding characteristic values; the error-causing factors are the specific reasons that may cause abnormal performance of the target rectifier; the factor characteristic values ​​are numerical values ​​or indicators that describe the specific performance or degree of the error-causing factors. Specifically, the error-causing characteristic determination unit receives the scene condition data sent by the scene condition data receiving module 50, performs pre-processing operations such as cleaning and format conversion on the scene condition data to ensure the accuracy and consistency of the data, analyzes the pre-processed data through a specific algorithm or model, identifies the factors that cause deviation or failure of the target rectifier, such as temperature anomalies, voltage fluctuations, etc., and extracts the corresponding characteristic values ​​for each identified error-causing factor, such as the value of abnormal temperature, the amplitude of voltage fluctuations, etc. A pre-adjustment type determination unit, the pre-adjustment type determination unit is used to traverse the error-causing features, locate and cluster the abnormal types, and determine the pre-adjustment type, the pre-adjustment type is at least one of the deviation type and the fault type, and the deviation type includes at least one of the distortion type and the deviation type. Specifically, the error-causing features extracted by the error-causing feature determination unit are traversed, and the abnormal type of each error-causing factor is located using a classification algorithm or model to determine which deviation type or fault type it belongs to, cluster the located abnormal types, and classify similar abnormal types into one category. According to the clustering result, the pre-adjustment type currently required by the target rectifier is determined, whether it is a deviation type (distortion type, deviation type) or a fault type, or both a deviation type and a fault type. A fault-tolerant protection unit, the fault-tolerant protection unit is used to perform fault-tolerant protection of the target rectifier based on the pre-adjustment type. Specifically, according to the pre-adjustment type determined by the pre-adjustment type determination unit, a corresponding pre-adjustment strategy or measure is selected, and the pre-adjustment strategy is executed to correct the deviation or recover the fault of the target rectifier, including adjusting the parameters of the PID self-regulation model, starting the backup trigger mechanism, etc. This implementation method realizes accurate and efficient fault-tolerant protection of the target rectifier by setting up an error-causing feature determination unit, a pre-adjustment type determination unit and a fault-tolerant protection unit, achieving the technical effect of improving the reliability and stability of the target rectifier control system.

[0029] In a possible implementation, the pre-adjustment type determination unit includes: a pre-adjustment branch activation subunit, the pre-adjustment branch activation unit is used to activate the pre-adjustment branch in the PID self-regulation model based on the pre-adjustment type, wherein the pre-adjustment type corresponds to the pre-adjustment branch mapping. Wherein, the pre-adjustment branch is a control branch used to handle a specific type of deviation or fault in the PID self-regulation model, and each pre-adjustment branch has different control logic and parameter settings. Specifically, the pre-adjustment branch activation subunit receives the pre-adjustment type output by the pre-adjustment type determination unit, and consults a pre-stored mapping relationship table, wherein the mapping relationship table is a table or data structure storing the corresponding relationship between the pre-adjustment type and the pre-adjustment branch, and is used to quickly match and activate the corresponding pre-adjustment branch, and activate the corresponding pre-adjustment branch in the PID self-regulation model by consulting the mapping relationship table. A calibration control data determination subunit, the calibration control data determination unit is used to adjust the pre-control data of the target rectifier based on the pre-adjustment branch and determine the calibration control data. Wherein, the pre-control data is the data or parameter based on which the target rectifier is preliminarily controlled during the fault-tolerant protection process. Specifically, the calibration control data determination subunit obtains the relevant parameters and control logic of the activated pre-adjustment branch, and adjusts the pre-control data of the target rectifier according to the parameters and control logic of the pre-adjustment branch, including modifying the set values ​​of voltage, current, etc., or adjusting the parameters of the control algorithm, and outputs the adjusted pre-control data as calibration control data to guide the actual operation of the target rectifier. This implementation method enables the pre-adjustment type determination unit to more accurately execute the fault-tolerant protection strategy according to the pre-adjustment type by setting the pre-adjustment branch activation subunit and the calibration control data determination subunit, thereby achieving precise control of the performance of the target rectifier and achieving the technical effect of improving the accuracy of the fault-tolerant protection.

[0030] In a possible implementation, the pre-adjustment type determination unit includes: an operation stability acquisition subunit, the operation stability acquisition subunit is used to interact with the operation stability of the target rectifier, and the operation stability includes power supply stability and self-stability. Specifically, the operation stability acquisition subunit interacts with the target rectifier through a communication interface or a data bus, obtains the current operation stability data, and analyzes the acquired operation stability data, including two aspects: power supply stability and self-stability, wherein the power supply stability reflects the stability and reliability of the power supply system; the self-stability describes the operating state and performance stability of the target rectifier itself. After the analysis is completed, the operation stability acquisition subunit outputs the result of the operation stability to the control fluctuation interval determination subunit. The control fluctuation interval determination subunit is used to determine the control fluctuation interval based on the operation stability. Specifically, the control fluctuation interval determination subunit receives the operation stability data output by the operation stability acquisition subunit, and calculates the control fluctuation interval according to the specific value of the operation stability and the preset fluctuation interval calculation rule. The control fluctuation interval reflects the maximum fluctuation range allowed by the control parameters of the target rectifier under the current operation stability. After the calculation is completed, the result of the control fluctuation interval is output to the external expansion adjustment subunit. The external expansion adjustment subunit is used to perform external expansion adjustment on the calibration control data based on the control fluctuation interval. Specifically, the external expansion adjustment subunit receives the control fluctuation interval data output by the control fluctuation interval determination subunit, and performs external expansion adjustment on the calibration control data based on the range of the control fluctuation interval, that is, expands or reduces the value range of the control parameter to adapt to the current operation stability state of the target rectifier. After the adjustment is completed, the adjusted calibration control data is output to the fault-tolerant protection unit to guide the actual operation of the target rectifier. This implementation method makes fine adjustments to the calibration control data by setting an operation stability acquisition subunit, a control fluctuation range determination subunit and an external adjustment subunit, so that the pre-adjustment type determination unit can more accurately determine and adjust the calibration control data, ensuring that the control parameters neither exceed the allowable range nor adapt to the current operating status of the target rectifier, thereby achieving the technical effect of improving the accuracy and effectiveness of fault-tolerant protection.

[0031] In a possible implementation, the pre-adjustment type determination unit includes: an identification traversal subunit, the identification traversal subunit is used to identify the pre-adjustment type, identify the pre-adjustment range of the target rectifier, traverse the fault-tolerant redundant topology to locate the access topology partition, wherein the access topology partition includes at least one. Specifically, the identification traversal subunit identifies the pre-adjustment type of the target rectifier according to a preset algorithm or rule, and further determines the pre-adjustment range of the target rectifier according to the identified pre-adjustment type, that is, the specific range that needs to be adjusted or optimized, such as specific parameters, control logic or functional modules, etc., traverses the fault-tolerant redundant topology, and locates the access topology partition, which refers to the area in the fault-tolerant redundant topology used to access and switch different functional modules or paths, forming one or more backup operation paths or strategies. A cross-connection subunit, the cross-connection subunit is used to perform a cross-connection operation on the pre-adjustment range and the access topology partition based on the backup trigger mechanism, wherein the cross-connection criterion is the disconnection operation of the pre-adjustment range of the target rectifier and the connection operation of the access topology partition. Specifically, the cross-connection subunit detects whether the backup trigger mechanism is triggered. The backup trigger mechanism is triggered by fault detection, performance degradation or other abnormal conditions. When the backup trigger mechanism is activated, according to the preset rules, the pre-adjustment range and the access topology partition are cross-connected. The cross-connection operation refers to the operation of disconnecting the current connection and connecting to the backup path or strategy to achieve fault tolerance or adjustment functions, including disconnecting the current connection within the pre-adjustment range of the target rectifier and connecting to the corresponding access topology partition. The operation management subunit is used to perform operation management based on the pre-control data of the target rectifier after executing the cross-connection operation. Specifically, the operation management subunit obtains the operation data of the target rectifier after the cross-connection operation, including parameters, status information, etc., and adjusts the operation strategy of the target rectifier based on the obtained operation data, including parameter optimization, control logic modification or functional module switching, etc., continuously monitors the operation status of the target rectifier, and adjusts the operation strategy as needed. This implementation method ensures that the target rectifier can switch to a backup path or strategy when a fault occurs or adjustment is required by setting up an identification traversal subunit, a cross-connection subunit and an operation management subunit, and ensures that the target rectifier can maintain a stable operating state and performance during the fault tolerance or adjustment process, thereby achieving the technical effect of improving the system's fault tolerance and stability.

[0032] like Figure 2As shown, in a possible implementation, the fault-tolerant protection module 60 includes: a periodic fault-tolerant rate determination unit, which is used to read the fault-tolerant protection record of the target rectifier within a predetermined period and determine the periodic fault-tolerant rate. Specifically, the periodic fault-tolerant rate determination unit reads the fault-tolerant protection record of the target rectifier within a predetermined period, and the fault-tolerant protection record contains all fault-tolerant events and related information occurring within the predetermined period. Based on the read fault-tolerant protection record, the periodic fault-tolerant rate is calculated. The periodic fault-tolerant rate refers to the ratio of the number of fault-tolerant events occurring within the predetermined period to the total number of events, reflecting the fault-tolerant performance of the target rectifier within the predetermined period. An effective fault-tolerant sample mining unit, which is used to determine whether the periodic fault-tolerant rate meets the fault-tolerant threshold. If not, the fault-tolerant protection record is traversed to mine effective fault-tolerant samples. Specifically, the effective fault-tolerant sample mining unit determines whether the periodic fault-tolerant rate meets the preset fault-tolerant threshold, wherein the fault-tolerant threshold is a standard value set according to the system performance and stability requirements. If the periodic fault-tolerant rate does not meet the fault-tolerant threshold, the fault-tolerant protection record is traversed to mine effective fault-tolerant samples, wherein the effective fault-tolerant sample refers to the fault-tolerant event record that is valuable for improving the fault-tolerant capability of the system. Among them, the effective fault-tolerant sample mining unit includes: a mining standard determination subunit, wherein the mining standard determination subunit is used to use the frequency of faults as the first mining standard, and the scope of faults and the level of faults as the second mining standard. Specifically, the mining standard determination subunit is used to determine a series of rules and criteria for mining effective fault-tolerant samples, wherein the frequency of faults is the first mining standard, and the frequency of faults refers to the frequency of occurrence of fault-tolerant events, and fault-tolerant events that occur frequently have higher research value; at the same time, the scope of faults and the level of faults are the second mining standards, and the scope of faults and the level of faults refer to the degree and severity of the impact of fault-tolerant events on the system, which are used to evaluate the importance and priority of fault-tolerant events. An effective fault-tolerant sample determination subunit is used to combine the first mining standard and the second mining standard, integrate the fault-tolerant protection records in a positive sequence and intercept them at a preset ratio to determine the effective fault-tolerant samples. Specifically, the effective fault-tolerant sample determination subunit evaluates each record in the fault-tolerant protection record according to the mining standard, including using the first mining standard and the second mining standard for a comprehensive evaluation, and assigns a corresponding evaluation value to each record. This evaluation value reflects the importance and value of the record in improving the fault tolerance capability of the system. After all fault-tolerant protection records are assigned evaluation values, the fault-tolerant protection records are sorted according to these evaluation values ​​to form a positive sequence arrangement. The higher the evaluation value of the fault-tolerant protection record, the higher its ranking. On the basis of the positive sequence arrangement, the fault-tolerant protection records are intercepted according to a preset ratio, and the preset ratio is determined based on system requirements, the goal of improving fault tolerance capability, and the balance of sample quantity.By intercepting, the most representative parts are selected from the sorted fault-tolerant protection records as effective fault-tolerant samples. These effective fault-tolerant samples are not only moderate in number, but also highly representative and of research value. An incremental learning unit is used to perform incremental learning on the PID self-regulation model and the backup trigger mechanism based on the effective fault-tolerant samples. Specifically, based on the effective fault-tolerant samples, the incremental learning unit performs incremental learning on the PID self-regulation model and the backup trigger mechanism, updates and optimizes the model, and improves the adaptability and accuracy of the model. This implementation method forms a complete fault-tolerant protection mechanism by setting a periodic fault-tolerant rate determination unit, an effective fault-tolerant sample mining unit, and an incremental learning unit, thereby achieving the technical effect of continuously improving the fault-tolerant capability and stability of the system and ensuring the normal operation and performance optimization of the target rectifier.

[0033] Although the present application makes various references to certain modules in the system according to the embodiments of the present application, any number of different modules may be used and run on the user terminal and / or server, and the various units and modules included are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of the present invention.

[0034] The above specific implementation manner does not constitute a limitation to the protection scope of the present application. It should be understood by those skilled in the art that various modifications, combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application. In some cases, the actions or steps recorded in the present application can be performed in an order different from that in the embodiment and can still achieve the desired results. In addition, the process depicted in the accompanying drawings does not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

Claims

1. A protection system for improving the fault tolerance of a rectifier, characterized in that: The system comprises: A basic configuration information reading module, wherein the basic configuration information reading module is used to read basic configuration information of a target rectifier, wherein the basic configuration information includes circuit configuration, component configuration and control system configuration; An incremental learning module, the incremental learning module is used to mine abnormal fault records of rectifiers, train a PID self-regulating model, and perform incremental learning on the PID self-regulating model based on the basic configuration information, wherein the PID self-regulating model includes a distortion repair branch and a deviation correction branch; A fault-tolerant redundant topology configuration module, wherein the fault-tolerant redundant topology configuration module is used to traverse the basic configuration information and configure a fault-tolerant redundant topology, wherein the fault-tolerant redundant topology includes a circuit fault-tolerant topology and a system redundant topology; A backup trigger mechanism generation module, the backup trigger mechanism generation module is used to generate a backup trigger mechanism based on the fault-tolerant redundant topology to configure the target rectifier; A scenario operating condition data receiving module, the scenario operating condition data receiving module is used to monitor and receive scenario operating condition data of the target rectifier, the scenario operating condition data includes electrical data, operation data and environmental data, and the electrical data includes AC / DC conversion data; A fault-tolerant protection module is used to identify the scenario operating condition data, perform deviation fault-tolerant protection of the target rectifier in combination with the PID self-regulation model, and perform fault fault-tolerant protection of the target rectifier in combination with the backup trigger mechanism.

2. A protection system for improving the fault tolerance of a rectifier as claimed in claim 1, characterized in that: The incremental learning module includes: A self-fault-tolerant characteristic acquisition unit, the self-fault-tolerant characteristic acquisition unit is used to exchange the self-fault-tolerant characteristic of the target rectifier, the self-fault-tolerant characteristic is determined based on the factory configuration; A differentiation analysis unit, the differentiation analysis unit is used to traverse the abnormal fault records of the rectifier, perform differentiation analysis in combination with the self-fault-tolerant characteristics, and measure the pre-management fault-tolerant characteristics, the pre-management fault-tolerant characteristics include the mapped fault-tolerant type and fault-tolerant degree, wherein the pre-management fault-tolerant characteristics are used to perform training constraints on the PID self-regulation model and structural configuration constraints on the fault-tolerant redundant topology.

3. A protection system for improving rectifier fault tolerance as claimed in claim 1, characterized in that: The basic configuration information reading module includes: A front-end control configuration unit is used to perform front-end control configuration of the control system on the PID self-regulating model and the backup trigger mechanism.

4. A protection system for improving rectifier fault tolerance as claimed in claim 1, characterized in that: The fault-tolerant protection module comprises: An error-causing feature determination unit, the error-causing feature determination unit is used to identify the scene condition data and determine an error-causing feature, the error-causing feature including an error-causing factor and a factor feature value; A pre-adjustment type determination unit, the pre-adjustment type determination unit is used to traverse the error-causing features, locate and cluster the abnormality types, and determine the pre-adjustment type, the pre-adjustment type is at least one of a deviation type and a fault type, and the deviation type includes at least one of a distortion type and a deviation type; A fault-tolerant protection unit is used to perform fault-tolerant protection of the target rectifier based on the pre-adjustment type.

5. A protection system for improving the fault tolerance of a rectifier as claimed in claim 4, characterized in that: The pre-adjustment type determination unit includes: A pre-adjustment branch activation subunit, the pre-adjustment branch activation unit is used to activate the pre-adjustment branch in the PID self-regulation model based on the pre-adjustment type, wherein the pre-adjustment type corresponds to the pre-adjustment branch mapping; A calibration control data determination subunit is configured to adjust the pre-control data of the target rectifier based on the pre-adjustment branch to determine the calibration control data.

6. A protection system for improving the fault tolerance of a rectifier as claimed in claim 5, characterized in that: The pre-adjustment type determination unit includes: An operation stability acquisition subunit, the operation stability acquisition subunit is used to exchange the operation stability of the target rectifier, the operation stability includes power supply stability and self-stability; a control fluctuation interval determination subunit, the control fluctuation interval determination subunit being used to determine a control fluctuation interval based on the operation stability; An external expansion adjustment subunit, the external expansion adjustment subunit is used to perform external expansion adjustment on the calibration control data based on the control fluctuation range.

7. A protection system for improving rectifier fault tolerance as claimed in claim 4, characterized in that: The pre-adjustment type determination unit includes: An identification and traversal subunit, wherein the identification and traversal subunit is used to identify the pre-adjustment type, identify the pre-adjustment range of the target rectifier, and traverse the fault-tolerant redundant topology to locate the access topology partition, wherein the access topology partition includes at least one; A cross-connection subunit, the cross-connection subunit is used to perform a cross-connection operation on the preset range and the access topology partition based on the standby trigger mechanism, wherein the cross-connection criterion is a disconnection operation of the preset range of the target rectifier and a connection operation of the access topology partition; An operation management subunit is used to perform operation management based on the pre-control data of the target rectifier after executing the cross-connection operation.

8. A protection system for improving rectifier fault tolerance as claimed in claim 1, characterized in that: The fault-tolerant protection module comprises: A periodic fault tolerance rate determination unit, the periodic fault tolerance rate determination unit is used to read the fault tolerance protection record within a predetermined period of the target rectifier to determine the periodic fault tolerance rate; An effective fault-tolerant sample mining unit, the effective fault-tolerant sample mining unit is used to determine whether the periodic fault-tolerant rate meets the fault-tolerant threshold, and if not, traverse the fault-tolerant protection records to mine effective fault-tolerant samples; An incremental learning unit, the incremental learning unit being used to perform incremental learning on the PID self-regulation model and the backup trigger mechanism based on the effective fault-tolerant samples; Among them, the effective fault-tolerant sample mining unit includes: A mining standard determination subunit, wherein the mining standard determination subunit is used to use the error frequency as a first mining standard and the error scope and error level as a second mining standard; The effective fault-tolerant sample determination subunit is used to combine the first mining standard and the second mining standard, integrate the fault-tolerant protection records in a positive sequence and extract a preset proportion to determine the effective fault-tolerant sample.

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