Converter equipment health state evaluation method, system, equipment and medium

Abstract

The invention provides a health state evaluation method and system for converter equipment, equipment and a medium. The health state evaluation method comprises the steps that evaluation state quantities of evaluation compositions in the converter equipment to be evaluated are acquired; according to the evaluation state quantity formed by each evaluation, a state evaluation algorithm is utilized to obtain tagging information and an evaluation score of the converter equipment; according to the tagging information and the evaluation score of the converter equipment, performing health state evaluation on the converter equipment to obtain a health state evaluation result of the converter equipment; wherein the state evaluation algorithm is implemented based on the tagging information and the evaluation state quantity of each evaluation composition in the converter equipment; through the state evaluation algorithm implemented based on the tagging information composed of the evaluation of the converter equipment and the evaluation state quantity, the tagging of the converter equipment and the calculation of the evaluation score are realized, the health state is evaluated, the process from the bottom index to the final evaluation result has strict logic and interpretability, and the evaluation efficiency is improved. And the reliability of the state conclusion of the converter equipment can be reflected practically.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission and transformation equipment monitoring, and in particular to a health status evaluation method, system, equipment and medium for commutation equipment. Background Art

[0002] At present, DC projects are gradually increasing, the scale of power grids is also expanding, and the power grid has higher and higher requirements for the reliability of DC transmission systems. The converter valve, valve cooling and valve control together constitute the core converter equipment of DC transmission, playing important roles such as rectification and inversion. Once any part fails, it may cause the DC side voltage to decrease and the current to increase. In severe cases, it may even cause power transmission interruption, endangering the safe operation of the power grid. At present, converter stations usually adopt traditional planned maintenance, by arranging power outages for the entire station, and centralized annual maintenance. However, the planned maintenance requires a long power outage time, which is easy to have an adverse impact on the economy of the DC transmission system. In recent years, more efficient condition maintenance has been promoted within the power grid, and the health status evaluation of the converter equipment is a prerequisite for the implementation of perfect condition maintenance.

[0003] At present, the main methods for evaluating the status of converter valves, valve cooling and valve control are fuzzy evaluation, machine learning and other methods. Fuzzy evaluation determines the status of the equipment by determining the indicator weights and combining evidence reasoning; machine learning methods build models through fitting learning such as neural networks to predict the future status of the equipment. The common defects of the above methods are: 1) There is a lack of explainability from the underlying indicators to the final status determination, and there is no logically rigorous mechanism significance; 2) When the underlying indicators for evaluating converter valves, valve cooling and valve control increase or decrease, the above methods cannot respond quickly, resulting in a reduction in the reliability of the status evaluation of the converter equipment. Summary of the invention

[0004] In order to solve the problem that the existing state evaluation method of commutation equipment lacks interpretability from the bottom-level indicators to the final state determination, resulting in reduced reliability of the state evaluation of the commutation equipment, the present invention proposes a health state evaluation method for commutation equipment, comprising:

[0005] Obtaining the evaluation state quantity of each evaluation component in the commutation device to be evaluated;

[0006] According to the evaluation state quantity of each evaluation component, using a preset state evaluation algorithm, obtain the coding information and evaluation score of the commutation device;

[0007] According to the coding information and evaluation score of the commutation device, the health status of the commutation device is evaluated to obtain the health status evaluation result of the commutation device;

[0008] Wherein, the state evaluation algorithm is implemented based on the coding information and evaluation state quantity of each evaluation component in the commutation device.

[0009] Optionally, obtaining the coding information and evaluation score of the commutation device according to the evaluation state quantity of each evaluation component by using a preset state evaluation algorithm includes:

[0010] According to the evaluation state quantity of each evaluation component, using a preset state mapping relationship, obtain the deduction information corresponding to the evaluation state quantity;

[0011] The deduction information is multiplied by the weight coefficient corresponding to the evaluation state quantity set in advance to obtain the deduction value of the state quantity corresponding to each evaluation component;

[0012] Based on the deductible points of the state quantities corresponding to the evaluation components, the coding information and evaluation score of the commutation device are obtained.

[0013] Optionally, obtaining the coding information and evaluation score of the commutation device based on the deductible score of the state quantity corresponding to each evaluation component includes:

[0014] According to the deductible points of the state quantity corresponding to each evaluation component, each evaluation component is coded to obtain coding information of each evaluation component;

[0015] The coding information and evaluation score of the commutation device are obtained according to the coding information of each evaluation component.

[0016] Optionally, obtaining the coding information and evaluation score of the commutation device according to the coding information of each evaluation component includes:

[0017] When the coding information of each evaluation component is a green code, the coding information of the commutation device is set to a green code, and the evaluation score of the commutation device is set to a preset normal score value;

[0018] When there is a yellow code but no red code in the coding information of the evaluation component, the coding information of the commutation device is set to a yellow code, and the evaluation score of the commutation device is calculated according to the first expression;

[0019] When a red code exists in the coding information of the evaluation component, the coding information of the commutation device is set to a red code, and the evaluation score of the commutation device is calculated according to the second expression.

[0020] Optionally, the first expression is as follows:

[0021]

[0022] Among them, Y represents the evaluation score when the coding information of the commutation equipment is yellow code; G represents the normal status score; a represents the yellow code coefficient value; A represents the deductible score of the status quantity of the evaluation component; B represents the total deductible score of the status quantity of the evaluation component.

[0023] Optionally, the second expression is as follows:

[0024]

[0025] Among them, R represents the evaluation score when the coding information of the commutation equipment is red; G represents the normal status score; b represents the red code coefficient value; A represents the deductible score of the status quantity of the evaluation component; B represents the total deductible score of the status quantity of the evaluation component.

[0026] Optionally, the health status evaluation of the commutation device is performed according to the coding information and the evaluation score of the commutation device to obtain the health status evaluation result of the commutation device, including:

[0027] When the coding information of the commutation device is a green code, the health status evaluation result of the commutation device is that the commutation device is in a normal operating state;

[0028] When the coding information of the commutation device is a yellow code or a red code, the health status evaluation result of the commutation device is obtained according to the evaluation score of the commutation device.

[0029] Optionally, when the coding information of the commutation device is a yellow code, obtaining a health status evaluation result of the commutation device according to the evaluation score of the commutation device includes:

[0030] When the coding information of the commutation device is yellow;

[0031] If the evaluation score of the commutation device is within the first yellow code threshold range, the health status evaluation result of the commutation device is that the commutation device is in operation but has a slight abnormality;

[0032] If the evaluation score of the commutation device is within the second yellow code threshold range, the health status evaluation result of the commutation device is that the commutation device is in operation but has a medium abnormality;

[0033] If the evaluation score of the commutation device is within the third yellow code threshold range, the health status evaluation result of the commutation device is that the commutation device is in operation, but has serious abnormalities.

[0034] Optionally, when the coding information of the commutation device is a red code, obtaining a health status evaluation result of the commutation device according to the evaluation score of the commutation device includes:

[0035] When the coding information of the commutation device is a red code;

[0036] If the evaluation score of the commutation device is within the first red code threshold range, the health status evaluation result of the commutation device is that the commutation device is in an abnormal operating state and has serious problems;

[0037] If the evaluation score of the commutation device is within the second red code threshold range, the health status evaluation result of the commutation device is that the commutation device is in an abnormal operating state and is in danger of shutting down.

[0038] Optionally, the evaluation components include: hardware components and monitoring quantity components;

[0039] The commutation equipment includes: a commutation valve, a valve cooler and a valve control;

[0040] The hardware components of the converter valve include one or more of the following: thyristors, lightning arresters, saturated reactors, insulators, structural parts and connectors;

[0041] The monitoring quantity composition in the converter valve includes one or more of the following: fast overvoltage protection action level over-limit signal, thyristor level redundancy loss signal, optical channel abnormality signal, thyristor level fault signal, voltage grading resistor fault signal, damping resistor fault signal, damping capacitor fault signal, trigger line fault signal and saturated reactor fault signal;

[0042] The hardware components in the valve cooling system include one or more of the following: cooling medium, pump station, heat exchanger, filter, valve and pipeline;

[0043] The monitoring quantity composition in the valve cooling includes one or more of the following: the temperature of the cooling medium, the pressure of the cooling medium, the working state of the pump station, the filter fault signal, the pipeline pressure and the pipeline flow;

[0044] The hardware components in the valve control include one or more of the following: monitoring protection circuit, signal processing circuit, protection circuit, auxiliary power supply and communication interface;

[0045] The monitoring quantity components in the valve control include one or more of the following: thyristor level fault signal, optical channel abnormality signal, trigger line fault signal and auxiliary power supply working state monitoring signal.

[0046] Based on the same inventive concept, the present invention also provides a health status evaluation system for a commutation device, comprising:

[0047] A state quantity acquisition module is used to obtain the evaluation state quantity of each evaluation component in the commutation device to be evaluated;

[0048] A scoring calculation module, used to obtain the coding information and evaluation score of the commutation device according to the evaluation state quantity of each evaluation component by using a preset state evaluation algorithm;

[0049] A status evaluation module, used to evaluate the health status of the commutation device according to the coding information and evaluation score of the commutation device, and obtain a health status evaluation result of the commutation device;

[0050] The state evaluation algorithm in the scoring calculation module is implemented based on the coding information and evaluation state quantity of each evaluation component in the commutation device.

[0051] Optionally, the score calculation module includes:

[0052] A basic deduction submodule is used to obtain deduction information corresponding to the evaluation state quantity according to the evaluation state quantity of each evaluation component by using a preset state mapping relationship;

[0053] A state quantity deduction submodule is used to perform a product operation on the deduction information and the weight coefficient corresponding to the evaluation state quantity set in advance, so as to obtain the state quantity deduction value corresponding to each evaluation component;

[0054] The evaluation score calculation submodule is used to obtain the coding information and evaluation score of the commutation device based on the deductible score of the state quantity corresponding to each evaluation component.

[0055] Optionally, the evaluation score calculation submodule includes:

[0056] A coding unit, used for coding each evaluation component according to the deductible value of the state quantity corresponding to each evaluation component, to obtain coding information of each evaluation component;

[0057] The scoring unit is used to obtain the coding information and evaluation score of the commutation device according to the coding information of each evaluation component.

[0058] Optionally, the scoring unit includes:

[0059] A green code counting subunit, used for setting the coding information of the commutation device to a green code and setting the evaluation score of the commutation device to a preset normal score value when the coding information of each evaluation component is a green code;

[0060] a yellow code counting subunit, used for setting the coding information of the commutation device to a yellow code when there is a yellow code but no red code in the coding information of the evaluation component, and calculating the evaluation score of the commutation device according to a first expression;

[0061] The red code counting subunit is used to set the coding information of the commutation device to a red code when there is a red code in the coding information of the evaluation component, and calculate the evaluation score of the commutation device according to the second expression.

[0062] Optionally, the first expression is as follows:

[0063]

[0064] Among them, Y represents the evaluation score when the coding information of the commutation equipment is yellow code; G represents the normal status score; a represents the yellow code coefficient value; A represents the deductible score of the status quantity of the evaluation component; B represents the total deductible score of the status quantity of the evaluation component.

[0065] Optionally, the second expression is as follows:

[0066]

[0067] Among them, R represents the evaluation score when the coding information of the commutation equipment is red; G represents the normal status score; b represents the red code coefficient value; A represents the deductible score of the status quantity of the evaluation component; B represents the total deductible score of the status quantity of the evaluation component.

[0068] Optionally, the status evaluation module includes:

[0069] A green code evaluation submodule, for evaluating the health status of the commutation device as being in a normal operating state when the coding information of the commutation device is a green code;

[0070] The red and yellow code evaluation submodule is used to obtain the health status evaluation result of the commutation device according to the evaluation score of the commutation device when the coding information of the commutation device is a yellow code or a red code.

[0071] Optionally, the red-yellow code evaluation submodule includes:

[0072] A yellow code first evaluation unit is used for, when the coding information of the commutation device is a yellow code; if the evaluation score of the commutation device is within the first yellow code threshold range, the health status evaluation result of the commutation device is that the commutation device is in operation but has a slight abnormality;

[0073] A yellow code second evaluation unit, configured to evaluate the health status of the commutation device as follows: if the evaluation score of the commutation device is within a second yellow code threshold range, the commutation device is in operation but has a medium abnormality;

[0074] The yellow code third evaluation unit is used to evaluate the health status of the commutation device as follows: if the evaluation score of the commutation device is within the third yellow code threshold range, the health status evaluation result of the commutation device is that the commutation device is in operation but has serious abnormalities.

[0075] Optionally, the red-yellow code evaluation submodule further includes:

[0076] A first red code evaluation unit is used for, when the coding information of the commutation device is a red code; if the evaluation score of the commutation device is within the first red code threshold range, the health status evaluation result of the commutation device is that the commutation device is in an abnormal operating state and has serious problems;

[0077] The red code second evaluation unit is used for evaluating the health status of the commutation device as follows: if the evaluation score of the commutation device is within the second red code threshold range, the health status evaluation result of the commutation device is that the commutation device is in an abnormal operating state and is in danger of shutting down.

[0078] Optionally, the evaluation components in the state quantity acquisition module include: hardware components and monitoring quantity components;

[0079] The commutation equipment includes: a commutation valve, a valve cooler and a valve control;

[0080] The hardware components of the converter valve include one or more of the following: thyristors, lightning arresters, saturated reactors, insulators, structural parts and connectors;

[0081] The monitoring quantity composition in the converter valve includes one or more of the following: fast overvoltage protection action level over-limit signal, thyristor level redundancy loss signal, optical channel abnormality signal, thyristor level fault signal, voltage grading resistor fault signal, damping resistor fault signal, damping capacitor fault signal, trigger line fault signal and saturated reactor fault signal;

[0082] The hardware components in the valve cooling system include one or more of the following: cooling medium, pump station, heat exchanger, filter, valve and pipeline;

[0083] The monitoring quantity composition in the valve cooling includes one or more of the following: the temperature of the cooling medium, the pressure of the cooling medium, the working state of the pump station, the filter fault signal, the pipeline pressure and the pipeline flow;

[0084] The hardware components in the valve control include one or more of the following: monitoring protection circuit, signal processing circuit, protection circuit, auxiliary power supply and communication interface;

[0085] The monitoring quantity components in the valve control include one or more of the following: thyristor level fault signal, optical channel abnormality signal, trigger line fault signal and auxiliary power supply working state monitoring signal.

[0086] In another aspect, the present invention further provides an electronic device, comprising: at least one processor and a memory; the memory and the processor are connected via a bus;

[0087] The memory is used to store one or more programs;

[0088] When the one or more programs are executed by the at least one processor, a method for evaluating the health status of a commutation device as described above is implemented.

[0089] On the other hand, the present invention further provides a computer-readable storage medium having an execution program stored thereon, and when the execution program is executed, the health status evaluation method of a commutation device as described above is implemented.

[0090] Compared with the prior art, the present invention has the following beneficial effects:

[0091] The present invention provides a method, system, device and medium for evaluating the health status of a commutation device, comprising: obtaining the evaluation status quantity of each evaluation component in the commutation device to be evaluated; obtaining the coding information and evaluation score of the commutation device according to the evaluation status quantity of each evaluation component using a preset status evaluation algorithm; evaluating the health status of the commutation device according to the coding information and evaluation score of the commutation device to obtain the health status evaluation result of the commutation device; wherein the status evaluation algorithm is implemented based on the coding information and evaluation status quantity of each evaluation component in the commutation device; the present application implements the calculation of the coding and evaluation score of the commutation device through the status evaluation algorithm implemented based on the coding information and evaluation status quantity of the evaluation components of the commutation device, so that the process from the underlying indicator to the final evaluation result has strict logic and explainability, and can effectively reflect the theoretical reliability of the health status result of the commutation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0092] Figure 1 A schematic diagram of a flow chart of a method for evaluating the health status of a commutation device provided by the present invention;

[0093] Figure 2 A schematic diagram of a state evaluation process of a method for evaluating the health state of a commutation device provided by a specific embodiment of the present invention;

[0094] Figure 3 A schematic diagram of hierarchical division results of a method for evaluating the health status of a commutation device provided in a specific embodiment of the present invention;

[0095] Figure 4 A schematic diagram of the structure of a health status evaluation system for a commutation device provided by the present invention;

[0096] Figure 5The present invention provides a schematic structural diagram of an electronic device. DETAILED DESCRIPTION

[0097] The present invention provides a method, system, device and medium for evaluating the health status of a commutation device. The specific implementation manner of the present invention is further described in detail below with reference to the accompanying drawings.

[0098] Embodiment 1:

[0099] The present invention provides a method for evaluating the health status of a commutation device, the flow chart of which is as follows: Figure 1 As shown, including:

[0100] Step 1: Obtain the evaluation state quantity of each evaluation component in the commutation device to be evaluated;

[0101] Step 2: According to the evaluation state quantity of each evaluation component, the preset state evaluation algorithm is used to obtain the coding information and evaluation score of the commutation equipment;

[0102] Step 3: According to the coding information and evaluation score of the commutation equipment, the health status of the commutation equipment is evaluated to obtain the health status evaluation result of the commutation equipment;

[0103] Among them, the state evaluation algorithm is implemented based on the coding information and evaluation state quantity of each evaluation component in the commutation equipment.

[0104] For example, the commutation equipment in the above step 1 may include: a commutation valve, a valve cooler and a valve control;

[0105] For example, the above-mentioned evaluation components may include: hardware components and monitoring quantity components;

[0106] For example, the hardware components of the above-mentioned converter valve may include one or more of the following: thyristors, lightning arresters, saturated reactors, insulators, structural parts and connectors;

[0107] For example, the monitoring quantity composition in the above-mentioned converter valve may include one or more of the following: fast overvoltage protection (Forward Over Protect, FOP) action level over-limit signal, thyristor level redundancy loss signal, optical channel abnormality signal, thyristor level fault signal, voltage balancing resistor fault signal, damping resistor fault signal, damping capacitor fault signal, trigger line fault signal and saturated reactor fault signal;

[0108] Exemplarily, the hardware components in the valve cooling system include one or more of the following: cooling medium, pump station, heat exchanger, filter, valve and pipeline;

[0109] For example, the monitoring quantity composition in the valve cooling mentioned above includes one or more of the following: the temperature of the cooling medium, the pressure of the cooling medium, the working state of the pump station, the filter fault signal, the pipeline pressure and the pipeline flow;

[0110] For example, the hardware components in the above valve control include one or more of the following: monitoring protection circuit, signal processing circuit, protection circuit, auxiliary power supply and communication interface;

[0111] For example, the monitoring quantity in the above-mentioned valve control comprises one or more of the following: thyristor level fault signal, optical channel abnormality signal, trigger line fault signal and auxiliary power supply working state monitoring signal;

[0112] In the present invention, the commutation equipment is divided into three levels, namely, evaluation target, evaluation composition and evaluation state quantity, wherein the evaluation target is the commutation equipment, which may include: commutation valve, valve cooling and valve control; the evaluation composition refers to the hardware composition and monitoring quantity composition of the commutation equipment, wherein the hardware composition may be divided into multiple layers, the monitoring quantity may not belong to fixed hardware, and the monitoring quantity composition may include: online monitoring signal, alarm signal, offline detection variable, factory standard, component standard, etc.; the evaluation state quantity refers to the judgment basis reflecting the state of the hardware composition or monitoring quantity composition, and each hardware composition or monitoring quantity composition has at least one evaluation state quantity. Finally, a three-layer structure of "commutation equipment-hardware (or monitoring quantity)-evaluation state quantity" is formed; this multi-level evaluation structure can not only discover potential problems, effectively reduce the risk of equipment damage, extend its service life, help maintenance personnel to more efficiently manage, repair and maintain commutation equipment, but also further improve the reliability and safety of the entire system.

[0113] In one implementation, the process of obtaining the coding information and evaluation score of the commutation device according to the evaluation state quantity of each evaluation component by using a preset state evaluation algorithm in the above step 2 may include:

[0114] According to the evaluation state quantity of each evaluation component, the deduction information corresponding to the evaluation state quantity is obtained by using the preset state mapping relationship;

[0115] The deduction information is multiplied by the weight coefficient corresponding to the evaluation state quantity set in advance to obtain the deduction value of the state quantity corresponding to each evaluation component;

[0116] Based on the deductible points of the state quantity corresponding to each evaluation component, the coding information and evaluation score of the commutation equipment are obtained.

[0117] In this implementation, the above-mentioned state mapping relationship corresponds to the mapping relationship between the evaluation state quantity and the basic deduction value. The evaluation state quantity of each evaluation component is divided into 4 levels of I, II, III and IV according to the degree of degradation from light to heavy, and the corresponding basic deduction values ​​are 2, 4, 8 and 10 points. The impact of the evaluation state quantity on the safe operation of the commutation equipment is divided into weight 1, weight 2, weight 3 and weight 4 from light to heavy, and the coefficients are 1, 2, 3 and 4 respectively. Weight 1 and weight 2 correspond to the evaluation state quantity with less impact on the safe operation of the commutation equipment, and weight 3 and weight 4 correspond to the evaluation state quantity with greater impact on the safe operation of the commutation equipment. The deduction value of the evaluation state quantity is calculated according to the following calculation formula: the deduction value of the evaluation state quantity = the basic deduction value of the state quantity * weight coefficient, where no deduction is made when the evaluation state quantity is normal. The coding principle of the evaluation state quantity is shown in Table 1 below:

[0118] Table 1 Coding principles for evaluation status quantities

[0119] Status value deduction Status code Status value deduction value = 0 Green Code 0 < The deduction score of the status variable < 30 Yellow Code The deduction value of status quantity ≥ 30 Red Code

[0120] A green code indicates that the status is normal; a yellow code indicates that the status is abnormal but there is no need to stop operation, just strengthen monitoring; a red code indicates that the status is seriously abnormal and it is necessary to apply for suspension of operation for maintenance.

[0121] When all the status quantities corresponding to the evaluation composition are green codes, the evaluation composition is assigned a green code; when there are green codes and yellow codes among all the status quantities corresponding to the evaluation composition, the evaluation composition is assigned a yellow code; when there is a red code among all the status quantities corresponding to the evaluation composition, the evaluation composition is assigned a red code.

[0122] In this implementation, the process of obtaining the coding information and evaluation score of the commutation device based on the deductible score of the state quantity corresponding to each evaluation component may include:

[0123] According to the deductible points of the state quantity corresponding to each evaluation component, each evaluation component is coded to obtain the coding information of each evaluation component;

[0124] According to the coding information of each evaluation component, the coding information and evaluation score of the commutation equipment are obtained.

[0125] In this implementation, the process of obtaining the coding information and evaluation score of the commutation device according to the coding information of each evaluation component may include:

[0126] When the coding information of each evaluation component is green, the coding information of the commutation device is set to green, and the evaluation score of the commutation device is set to a preset normal state score value (for example, the normal state score value is 100 points);

[0127] When there is a yellow code but no red code in the coding information of the evaluation component, the coding information of the commutation device is set to a yellow code, and the evaluation score of the commutation device is calculated according to the first expression; that is, when all the evaluation components corresponding to the evaluation target are green codes, the evaluation target is assigned a green code; when all the evaluation components corresponding to the evaluation target have green codes and yellow codes, the evaluation target is assigned a yellow code; when there is a red code in all the evaluation components corresponding to the evaluation target, the evaluation component is assigned a red code;

[0128] For example, when the evaluation component is assigned a green code, the evaluation component score is 100 points; when the evaluation component is assigned a yellow code, the evaluation component score is as follows: yellow code score = 100-(the yellow code status value of the evaluation component should be deducted / the total of the yellow code status value of the evaluation component that can be deducted) * 40. When the evaluation component is assigned a red code, the evaluation component score is as follows: red code score = 60-(the red code status value of the evaluation component should be deducted / the total of the red code status value of the evaluation component that can be deducted) * 60;

[0129] When there is a red code in the coding information of the evaluation component, the coding information of the commutation device is set to a red code, and the evaluation score of the commutation device is calculated according to the second expression.

[0130] For example, the first expression above is as follows:

[0131]

[0132] Among them, Y represents the evaluation score when the coding information of the commutation equipment is yellow code; G represents the normal status score; a represents the yellow code coefficient value; A represents the deductible score of the status quantity of the evaluation component; B represents the total deductible score of the status quantity of the evaluation component.

[0133] For example, the second expression above is as follows:

[0134]

[0135] Among them, R represents the evaluation score when the coding information of the commutation equipment is red; G represents the normal status score; b represents the red code coefficient value; A represents the deductible score of the status quantity of the evaluation component; B represents the total deductible score of the status quantity of the evaluation component.

[0136] For example, when the evaluation target is assigned a green code, the evaluation target score is 100 points; when the evaluation target is assigned a yellow code, the evaluation target score is as follows: yellow code score = 100-(the deduction value of all evaluation component yellow code status quantities / the sum of the deduction values ​​of all evaluation component yellow code status quantities)*40. When the evaluation target is assigned a red code, the evaluation target score is as follows: red code score = 60-(the deduction value of all evaluation component red code status quantities / the sum of the deduction values ​​of all evaluation component red code status quantities)*60. As digitalization improves and the evaluation status quantities become richer, it is only necessary to add the corresponding evaluation status quantity deduction and coding methods at the bottom layer to continue to calculate the health status of the converter valve, valve cooling and valve control according to the above method. The method of the present invention can obtain a rapid response while the monitoring amount of the converter equipment is continuously increasing. The entire process does not require manual re-verification or model training, which is conducive to reducing the pressure caused by iterative updates.

[0137] Specifically, the above technical solution divides the health status evaluation of the commutation equipment into different levels, defines a clear degree of degradation and impact for each evaluation state quantity, and then establishes a detailed scoring and coding method, which can bring the following significant technical effects:

[0138] Refined evaluation: The degradation degree of the evaluation status quantity is divided into four levels and the corresponding deduction values ​​are given, which can more accurately reflect the status of the converter equipment; quantifying the influence of the status quantity on the safe operation of the converter valve through the weight coefficient helps to distinguish between importance and urgency.

[0139] Quickly locate problems: Through the different color coding of green, yellow and red codes, you can quickly identify whether the status of the equipment is normal, abnormal or seriously abnormal; both the evaluation components and evaluation targets use a similar coding method, which helps to quickly locate the level of the problem.

[0140] Improve maintenance efficiency: Points will only be deducted when the evaluation status is abnormal, reducing unnecessary maintenance of parts in normal condition; through quantitative scoring, maintenance resources can be arranged more specifically, giving priority to red code status.

[0141] Support decision making: The scoring and coding methods provide quantitative evaluation results, which provide strong data support for maintenance plan formulation and equipment upgrades. By monitoring and evaluating the trend changes of status quantities, potential failures can be predicted in advance and preventive measures can be taken.

[0142] Promote standardized management: Clear deduction and coding methods help establish unified evaluation standards and promote standardized management; standardized evaluation systems simplify the process of document management and report preparation.

[0143] Improve system reliability: By timely discovering and handling abnormal status quantities, the incidence of equipment failure can be effectively reduced; regular inspection and maintenance can ensure that the equipment is always in the best condition and extend its service life.

[0144] Adapting to digital transformation: With the advancement of digital technology and the introduction of more state variables, this method can be flexibly expanded by simply adding new state variables at the bottom layer.

[0145] Improve safety: Red code prompts that immediate action needs to be taken to avoid safety accidents caused by equipment failure. Through continuous monitoring and evaluation of status quantities, preventive maintenance can be achieved to avoid safety hazards caused by sudden equipment failure. It also integrates expert experience and basic theory, is explainable and scalable, and can expand the evaluation object according to needs. The mechanism is simple and easy to use for engineering practice.

[0146] In summary, the technical solution of the present invention can achieve effective evaluation and management of the health status of the commutation equipment through detailed state quantity division, clear deduction and coding methods, thereby improving the reliability and safety of the system, while reducing maintenance costs and improving maintenance efficiency. With the development of digital technology, the solution can be further optimized and improved.

[0147] In one implementation, in the above step 3, the health status of the commutation device is evaluated according to the coding information and the evaluation score of the commutation device, and the process of obtaining the health status evaluation result of the commutation device may include:

[0148] When the coding information of the commutation equipment is green, the health status evaluation result of the commutation equipment is that the commutation equipment is in normal operation;

[0149] When the coding information of the commutation equipment is a yellow code or a red code, the health status evaluation result of the commutation equipment is obtained according to the evaluation score of the commutation equipment.

[0150] In this implementation, when the coding information of the commutation device is a yellow code, the process of obtaining the health status evaluation result of the commutation device according to the evaluation score of the commutation device may include:

[0151] When the coding information of the commutation equipment is yellow;

[0152] If the evaluation score of the commutation equipment is within the first yellow code threshold range, the health status evaluation result of the commutation equipment is that the commutation equipment is in operation, but there is a slight abnormality;

[0153] If the evaluation score of the commutation equipment is within the second yellow code threshold range, the health status evaluation result of the commutation equipment is that the commutation equipment is in operation, but has a moderate abnormality;

[0154] If the evaluation score of the commutation equipment is within the third yellow code threshold range, the health status evaluation result of the commutation equipment is that the commutation equipment is in operation, but there are serious abnormalities.

[0155] For example, when the commutation equipment is yellow and the evaluation score is between 90 and 99, it means that the evaluation component or evaluation target can keep running, but there are minor abnormalities. The score is between 70 and 89, which means that the evaluation component or evaluation target can keep running, but there are moderate abnormalities and need to be strengthened. The score is between 60 and 69, which means that the evaluation component or evaluation target can keep running, but there are more serious abnormalities and serious operation deterioration may occur at any time.

[0156] In this implementation, when the coding information of the commutation device is a red code, the process of obtaining the health status evaluation result of the commutation device according to the evaluation score of the commutation device may include:

[0157] When the coding information of the commutation equipment is red;

[0158] If the evaluation score of the commutation device is within the first red code threshold range, the health status evaluation result of the commutation device is that the commutation device is in an abnormal operating state and has serious problems;

[0159] If the evaluation score of the commutation equipment is within the second red code threshold range, the health status evaluation result of the commutation equipment is that the commutation equipment is in an abnormal operating state and there is a risk of shutdown.

[0160] For example, when the commutation equipment is yellow and the evaluation score is between 50 and 59, it means that the evaluation components or evaluation targets can remain operational, but there are serious problems with key components or core functions, and the maintenance strategy needs to be adjusted. The score of 49 points or below means that the evaluation components or evaluation targets can remain operational, but there is basically insufficient redundancy and the circuit breaker may trip and stop at any time. At this time, it is best to apply for temporary maintenance. If the same code has different evaluation scores, the evaluation score does not necessarily show a linear downward trend, but there may be a sudden drop in the score, or even a change in the code.

[0161] In view of the problem that the existing status evaluation methods for commutation equipment lack explainability in determining the final status from the underlying indicators, resulting in reduced reliability of the status evaluation of the commutation equipment, the present invention proposes a health status evaluation method for commutation equipment. By implementing a status evaluation algorithm based on the coding information of the evaluation composition of the commutation equipment and the evaluation status quantity, the coding of the commutation equipment and the calculation of the evaluation score are realized, and the health evaluation of the online operation status of the commutation equipment is performed. Compared with the existing methods, on the one hand, the process from the underlying indicators to the final evaluation results of the present invention has strict logic and explainability, can effectively reflect the theoretical reliability of the equipment status conclusion, and is helpful for the inspection and maintenance of the commutation equipment; on the other hand, it can be not afraid of the increase in the amount of equipment monitoring and has a wider applicability.

[0162] Embodiment 2:

[0163] A method for evaluating the health status of a commutation device provided by the present invention is described with a specific embodiment, which is divided into two parts: coding and scoring, wherein coding includes green code, yellow code and red code assessment, and scoring includes deduction and scoring, the two complement each other, and the flow chart is shown as follows: Figure 2 The specific steps are as follows:

[0164] (1) The health status evaluation of converter valves, valve cooling and valve control is divided into three levels: evaluation target, evaluation composition and evaluation status quantity.

[0165] (2) Determine the deduction points and coding of evaluation status quantities based on their importance.

[0166] (3) Based on the coding of the evaluation status quantities, formulate a coding method for the evaluation components and evaluation objectives.

[0167] (4) Based on the deduction of evaluation status and the determined coding method, formulate the evaluation score calculation method for the evaluation components and evaluation objectives.

[0168] This embodiment takes the health status evaluation of the converter valve as an example to illustrate the process of the invented method:

[0169] In step (1), the classification is based on the hardware composition of the converter valve, online monitoring signals, alarm signals, offline detection variables, factory standards, component standards, etc. The classification results are as follows: Figure 3As shown. The evaluation target in the embodiment is the converter valve; the evaluation components in the embodiment include hardware (thyristor, resistor, capacitor, saturated reactor, etc.), monitoring quantity (alarm signal), for example, the alarm signal can include: fast overvoltage protection (Forward Over Protect, FOP) action level over-limit signal, converter valve base electronic equipment (VBE) alarm signal, etc., and the evaluation components can be divided into multiple layers according to structural logic or operation logic, etc.; the evaluation state quantity in the embodiment is a specific signal that characterizes the hardware or monitoring quantity, such as temperature, impedance value, etc. indicating whether the resistor is faulty. In the figure, room temperature leakage current, 90℃ junction temperature leakage current, forward withstand voltage, reverse withstand voltage, DC impedance, voltage balancing resistor, damping resistor (such as Rd resistor and Rx resistor in the figure), C1 capacitance, C2 capacitance and C3 capacitance are offline monitoring variables, and the rest are online monitoring signals. In the figure, the abnormal judgment of state quantities such as temperature, current, resistance, capacitance, etc. is set according to the factory standard or the standard of the device itself or the operation standard of the equipment.

[0170] In step (2), the degradation degree of the state quantity is divided into 4 levels from light to heavy, namely, I, II, III and IV, and the corresponding basic deduction values ​​are 2, 4, 8 and 10 points. The impact of the state quantity on the safe operation of the converter valve is evaluated from light to heavy, namely, weight 1, weight 2, weight 3 and weight 4, and the coefficients are 1, 2, 3 and 4 respectively. Weight 1 and weight 2 correspond to the state quantity with less impact on the safe operation of the converter valve, and weight 3 and weight 4 correspond to the state quantity with greater impact on the safe operation of the converter valve.

[0171] The deduction value for status quantity = basic deduction value for status quantity * weight coefficient. No deduction will be made when the status quantity is normal.

[0172] The state quantity coding process is shown in Table 2 below:

[0173] Table 2 State quantity coding process in the embodiment

[0174] Status value deduction Status code Status value deduction value = 0 Green Code 0 < State variable's points to be deducted < 30 Yellow Code The deduction value of status quantity ≥ 30 Red Code

[0175] A green code indicates that the status is normal. A yellow code indicates that the status is abnormal but there is no need to stop the operation, just strengthen monitoring. A red code indicates that the status is seriously abnormal and it is necessary to apply for a shutdown for maintenance.

[0176] The method of deducting points and assigning codes for intercepting some evaluation status quantities is shown in Table 3 below:

[0177] Table 3 Evaluation state quantity deduction coding method in the embodiment

[0178]

[0179]

[0180] In step (3), when all the state quantities corresponding to the evaluation composition are green codes, the evaluation composition is assigned a green code; when there are green codes and yellow codes among all the state quantities corresponding to the evaluation composition, the evaluation composition is assigned a yellow code; when there is a red code among all the state quantities corresponding to the evaluation composition, the evaluation composition is assigned a red code. For example, if the state quantities "temperature" and "resistance value" corresponding to the voltage-equalizing resistor are normal after monitoring and detection, the voltage-equalizing resistor is assigned a green code; if one of the "temperature" and "resistance value" is assigned a yellow code because it exceeds the standard, the voltage-equalizing resistor is assigned a yellow code; if one of the "temperature" and "resistance value" is assigned a red code because it exceeds the standard, the voltage-equalizing resistor is assigned a red code.

[0181] In step (3), when all evaluation components corresponding to the evaluation target are green codes, the evaluation target is assigned a green code; when all evaluation components corresponding to the evaluation target have green codes and yellow codes, the evaluation target is assigned a yellow code; when all evaluation components corresponding to the evaluation target have a red code, the evaluation component is assigned a red code. For example, if all evaluation components corresponding to the converter valve are green codes, the converter valve is assigned a green code; if there is an evaluation component, such as the voltage-equalizing resistor, which is assigned a yellow code, the converter valve is assigned a yellow code; if there is an evaluation component, such as the voltage-equalizing resistor, which is assigned a red code, the converter valve is assigned a red code.

[0182] In step (4), when the evaluation component is assigned a green code, the evaluation component score is 100 points; when the evaluation component is assigned a yellow code, the evaluation component score is as follows:

[0183] Yellow code score = 100-(the deductible score for the yellow code status of this evaluation component / the total deductible score for the yellow code status of this evaluation component)*40.

[0184] When a red code is assigned to an evaluation component, the evaluation component scores are as follows:

[0185] Red code score = 60-(the deductible points for the red code status of this evaluation component / the total deductible points for the red code status of this evaluation component)*60.

[0186] For example, the voltage-equalizing resistor has three evaluation status variables. If the temperature exceeds the upper limit of operation, a yellow code is assigned, and the corresponding score is: 100-16 / 16*40=60 points. If the temperature exceeds the upper limit of design, a red code is assigned, and the corresponding score is: 60-32 / (30+32)*60=29 points.

[0187] In step (4), when the evaluation target is assigned a green code, the evaluation target score is 100 points; when the evaluation target is assigned a yellow code, the evaluation target score is as follows:

[0188] Yellow code score = 100-(the deductible points for all evaluation components of the yellow code status / the total deductible points for all evaluation components of the yellow code status)*40.

[0189] When the evaluation target is assigned a red code, the evaluation target score is as follows:

[0190] Red code score = 60-(the deductible points for the red code status of all evaluation components / the total deductible points for the red code status of all evaluation components)*60.

[0191] As digitalization improves, the evaluation state quantity becomes richer, and only the corresponding evaluation state quantity deduction and coding method needs to be added at the bottom layer, and the health state of the converter valve, valve cooling and valve control can be calculated according to the above method. This embodiment can illustrate that the health state evaluation method of the converter equipment provided by the present invention integrates expert experience and basic theory, has interpretability and scalability, can expand the evaluation object according to needs, and has a simple mechanism and is convenient for engineering practice.

[0192] Embodiment 3:

[0193] The present invention based on the same inventive concept also provides a health status evaluation system for a commutation device, the structural composition diagram of which is shown in FIG. Figure 4 As shown, including:

[0194] A state quantity acquisition module is used to obtain the evaluation state quantity of each evaluation component in the commutation device to be evaluated;

[0195] A scoring calculation module is used to obtain the coding information and evaluation score of the commutation equipment according to the evaluation state quantity of each evaluation component using a preset state evaluation algorithm;

[0196] A status evaluation module is used to evaluate the health status of the commutation equipment according to the coding information and evaluation score of the commutation equipment, and obtain the health status evaluation result of the commutation equipment;

[0197] Among them, the state evaluation algorithm in the scoring calculation module is implemented based on the coding information and evaluation state quantity of each evaluation component in the commutation equipment.

[0198] For example, the evaluation components in the above-mentioned state quantity acquisition module may include: hardware components and monitoring quantity components;

[0199] For example, the above-mentioned converter equipment may include: a converter valve, a valve cooler and a valve control;

[0200] For example, the hardware components of the above-mentioned converter valve may include one or more of the following: thyristors, lightning arresters, saturated reactors, insulators, structural parts and connectors;

[0201] For example, the monitoring quantity composition in the above-mentioned converter valve may include one or more of the following: fast overvoltage protection action level over-limit signal, thyristor level redundancy loss signal, optical channel abnormality signal, thyristor level fault signal, voltage grading resistor fault signal, damping resistor fault signal, damping capacitor fault signal, trigger line fault signal and saturated reactor fault signal;

[0202] For example, the hardware components in the valve cooling system may include one or more of the following: cooling medium, pump station, heat exchanger, filter, valve and pipeline;

[0203] For example, the monitoring quantity composition in the valve cooling mentioned above may include one or more of the following: the temperature of the cooling medium, the pressure of the cooling medium, the working state of the pump station, the filter fault signal, the pipeline pressure and the pipeline flow;

[0204] For example, the hardware components in the above valve control may include one or more of the following: monitoring protection circuit, signal processing circuit, protection circuit, auxiliary power supply and communication interface;

[0205] For example, the monitoring quantity components in the above-mentioned valve control may include one or more of the following: a thyristor level fault signal, an optical channel abnormality signal, a trigger line fault signal and an auxiliary power supply working state monitoring signal.

[0206] In a possible implementation, the score calculation module may include:

[0207] The basic deduction submodule is used to obtain the deduction information corresponding to the evaluation state quantity according to the evaluation state quantity of each evaluation component by using the preset state mapping relationship;

[0208] The state quantity deduction submodule is used to multiply the deduction information and the weight coefficient corresponding to the evaluation state quantity set in advance to obtain the state quantity deduction value corresponding to each evaluation component;

[0209] The evaluation score calculation submodule is used to obtain the coding information and evaluation score of the commutation equipment based on the deductible score of the state quantity corresponding to each evaluation component.

[0210] In a possible implementation, the evaluation score calculation submodule includes:

[0211] A coding unit is used to code each evaluation component according to the deductible score of the state quantity corresponding to each evaluation component, so as to obtain coding information of each evaluation component;

[0212] The scoring unit is used to obtain the coding information and evaluation score of the commutation equipment according to the coding information of each evaluation component.

[0213] In a possible implementation, the scoring unit may include:

[0214] The green code counting sub-unit is used to set the coding information of the commutation equipment to a green code and the evaluation score of the commutation equipment to a preset normal score value when the coding information of each evaluation component is a green code;

[0215] A yellow code counting subunit, used for setting the coding information of the commutation equipment to yellow code when there is a yellow code and no red code in the coding information of the evaluation component, and calculating the evaluation score of the commutation equipment according to the first expression;

[0216] The red code counting subunit is used to set the coding information of the commutation device to the red code when there is a red code in the coding information of the evaluation component, and calculate the evaluation score of the commutation device according to the second expression.

[0217] For example, the first expression above is as follows:

[0218]

[0219] Among them, Y represents the evaluation score when the coding information of the commutation equipment is yellow code; G represents the normal status score; a represents the yellow code coefficient value; A represents the deductible score of the status quantity of the evaluation component; B represents the total deductible score of the status quantity of the evaluation component.

[0220] For example, the second expression above is as follows:

[0221]

[0222] Among them, R represents the evaluation score when the coding information of the commutation equipment is red; g represents the normal status score; b represents the red code coefficient value; A represents the deductible score of the status quantity of the evaluation component; B represents the total deductible score of the status quantity of the evaluation component.

[0223] In a possible implementation, the above-mentioned status evaluation module may include:

[0224] The green code evaluation submodule is used for evaluating the health status of the commutation equipment as being in a normal operating state when the coding information of the commutation equipment is a green code;

[0225] The red and yellow code evaluation submodule is used to obtain the health status evaluation result of the commutation equipment according to the evaluation score of the commutation equipment when the coding information of the commutation equipment is a yellow code or a red code.

[0226] In this implementation, the red-yellow code evaluation submodule may include:

[0227] The yellow code first evaluation unit is used when the coding information of the commutation device is a yellow code; if the evaluation score of the commutation device is within the first yellow code threshold range, the health status evaluation result of the commutation device is that the commutation device is in operation, but there is a slight abnormality;

[0228] The yellow code second evaluation unit is used for evaluating the health status of the commutation device as follows: if the evaluation score of the commutation device is within the second yellow code threshold range, the commutation device is in operation but has a medium abnormality;

[0229] The yellow code third evaluation unit is used to evaluate the health status of the commutation equipment as follows: if the evaluation score of the commutation equipment is within the third yellow code threshold range, the commutation equipment is in operation but has serious abnormalities.

[0230] In this implementation, the red-yellow code evaluation submodule may further include:

[0231] The first red code evaluation unit is used when the coding information of the commutation device is a red code; if the evaluation score of the commutation device is within the first red code threshold range, the health status evaluation result of the commutation device is that the commutation device is in an abnormal operating state and has serious problems;

[0232] The red code second evaluation unit is used to evaluate the health status of the commutation equipment as being in an abnormal operating state and in danger of shutting down if the evaluation score of the commutation equipment is within the second red code threshold range.

[0233] Embodiment 4:

[0234] like Figure 5 As shown, the present invention also provides an electronic device, which may be a computer device, a single-chip device, an intelligent mobile device, etc. The electronic device in this embodiment may include a processor, a memory, a transceiver component, etc. The memory, the processor, and the transceiver component are connected via a bus; the memory may be used to store an execution program, and an exemplary execution program may include instructions; the processor is used to execute the instructions stored in the memory. The memory may also be used to store data, which may be called and / or modified when the instructions are executed.

[0235] The processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. It is the computing core and control core of the terminal, which is suitable for implementing one or more instructions, specifically suitable for loading and executing one or more instructions in a storage medium to implement the corresponding method flow or corresponding functions, so as to implement the steps of a health status evaluation method for a commutation device in the above-mentioned embodiment.

[0236] Embodiment 5:

[0237] Based on the same inventive concept, the present invention also provides a readable storage medium, specifically an electronic device readable storage medium (Memory), which is a memory device in an electronic device for storing programs and data. It can be understood that the storage medium here can include both built-in storage media in electronic devices and extended storage media supported by electronic devices. The storage medium provides a storage space, which stores the operating system of the terminal. In addition, one or more instructions suitable for being loaded and executed by a processor are also stored in the storage space, and these instructions can be one or more execution programs (including program codes). It should be noted that the storage medium here can be a high-speed RAM memory or a non-volatile memory, such as at least one disk memory. The processor loads and executes one or more instructions stored in the storage medium, which can implement the steps of a health status evaluation method of a commutation device in the above embodiment.

[0238] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0239] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0240] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0241] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0242] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit its protection scope. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that after reading the present invention, those skilled in the art can still make various changes, modifications or equivalent substitutions to the specific implementation methods of the application, but these changes, modifications or equivalent substitutions are all within the protection scope of the claims to be approved.

Claims

1. A method for evaluating the health status of a commutation device, characterized in that: include: Obtaining the evaluation state quantity of each evaluation component in the commutation device to be evaluated; According to the evaluation state quantity of each evaluation component, using a preset state evaluation algorithm, obtain the coding information and evaluation score of the commutation device; According to the coding information and evaluation score of the commutation device, the health status of the commutation device is evaluated to obtain the health status evaluation result of the commutation device; Wherein, the state evaluation algorithm is implemented based on the coding information and evaluation state quantity of each evaluation component in the commutation device.

2. The method according to claim 1, characterized in that The step of obtaining the coding information and evaluation score of the commutation device according to the evaluation state quantity of each evaluation component by using a preset state evaluation algorithm includes: According to the evaluation state quantity of each evaluation component, using a preset state mapping relationship, obtain the deduction information corresponding to the evaluation state quantity; The deduction information is multiplied by the weight coefficient corresponding to the evaluation state quantity set in advance to obtain the deduction value of the state quantity corresponding to each evaluation component; Based on the deductible points of the state quantities corresponding to the evaluation components, the coding information and evaluation score of the commutation device are obtained.

3. The method according to claim 2, characterized in that The step of obtaining the coding information and evaluation score of the commutation device based on the deductible score of the state quantity corresponding to each evaluation component includes: According to the deductible points of the state quantity corresponding to each evaluation component, each evaluation component is coded to obtain coding information of each evaluation component; The coding information and evaluation score of the commutation device are obtained according to the coding information of each evaluation component.

4. The method according to claim 3, characterized in that The step of obtaining the coding information and the evaluation score of the commutation device according to the coding information of each evaluation component includes: When the coding information of each evaluation component is a green code, the coding information of the commutation device is set to a green code, and the evaluation score of the commutation device is set to a preset normal status score value; When there is a yellow code but no red code in the coding information of the evaluation component, the coding information of the commutation device is set to a yellow code, and the evaluation score of the commutation device is calculated according to the first expression; When a red code exists in the coding information of the evaluation component, the coding information of the commutation device is set to a red code, and the evaluation score of the commutation device is calculated according to the second expression.

5. The method according to claim 4, characterized in that The first expression is as follows: Among them, Y represents the evaluation score when the coding information of the commutation equipment is yellow code; G represents the normal status score; a represents the yellow code coefficient value; A represents the deductible score of the status quantity of the evaluation component; B represents the total deductible score of the status quantity of the evaluation component.

6. The method according to claim 4, characterized in that The second expression is as follows: Among them, R represents the evaluation score when the coding information of the commutation equipment is red; G represents the normal status score; b represents the red code coefficient value; A represents the deductible score of the status quantity of the evaluation component; B represents the total deductible score of the status quantity of the evaluation component.

7. The method according to claim 1, characterized in that The step of evaluating the health status of the commutation device according to the coding information and the evaluation score of the commutation device to obtain the health status evaluation result of the commutation device includes: When the coding information of the commutation device is a green code, the health status evaluation result of the commutation device is that the commutation device is in a normal operating state; When the coding information of the commutation device is a yellow code or a red code, the health status evaluation result of the commutation device is obtained according to the evaluation score of the commutation device.

8. The method according to claim 7, characterized in that When the coding information of the commutation device is a yellow code, the health status evaluation result of the commutation device is obtained according to the evaluation score of the commutation device, including: When the coding information of the commutation device is yellow; If the evaluation score of the commutation device is within the first yellow code threshold range, the health status evaluation result of the commutation device is that the commutation device is in operation but has a slight abnormality; If the evaluation score of the commutation device is within the second yellow code threshold range, the health status evaluation result of the commutation device is that the commutation device is in operation but has a medium abnormality; If the evaluation score of the commutation device is within the third yellow code threshold range, the health status evaluation result of the commutation device is that the commutation device is in operation, but has serious abnormalities.

9. The method according to claim 7, characterized in that When the coding information of the commutation device is a red code, the health status evaluation result of the commutation device is obtained according to the evaluation score of the commutation device, including: When the coding information of the commutation device is a red code; If the evaluation score of the commutation device is within the first red code threshold range, the health status evaluation result of the commutation device is that the commutation device is in an abnormal operating state and has serious problems; If the evaluation score of the commutation device is within the second red code threshold range, the health status evaluation result of the commutation device is that the commutation device is in an abnormal operating state and is in danger of shutting down.

10. The method according to claim 1, characterized in that The evaluation components include: hardware components and monitoring quantity components; The commutation equipment includes: a commutation valve, a valve cooler and a valve control; The hardware components of the converter valve include one or more of the following: thyristors, lightning arresters, saturated reactors, insulators, structural parts and connectors; The monitoring quantity composition in the converter valve includes one or more of the following: fast overvoltage protection action level over-limit signal, thyristor level redundancy loss signal, optical channel abnormality signal, thyristor level fault signal, voltage grading resistor fault signal, damping resistor fault signal, damping capacitor fault signal, trigger line fault signal and saturated reactor fault signal; The hardware components in the valve cooling system include one or more of the following: cooling medium, pump station, heat exchanger, filter, valve and pipeline; The monitoring quantity composition in the valve cooling includes one or more of the following: the temperature of the cooling medium, the pressure of the cooling medium, the working state of the pump station, the filter fault signal, the pipeline pressure and the pipeline flow; The hardware components in the valve control include one or more of the following: monitoring protection circuit, signal processing circuit, protection circuit, auxiliary power supply and communication interface; The monitoring quantity components in the valve control include one or more of the following: thyristor level fault signal, optical channel abnormality signal, trigger line fault signal and auxiliary power supply working state monitoring signal.

11. A health status evaluation system for a commutation device, characterized in that: include: A state quantity acquisition module is used to obtain the evaluation state quantity of each evaluation component in the commutation device to be evaluated; A scoring calculation module, used to obtain the coding information and evaluation score of the commutation device according to the evaluation state quantity of each evaluation component by using a preset state evaluation algorithm; A status evaluation module, used to evaluate the health status of the commutation device according to the coding information and evaluation score of the commutation device, and obtain a health status evaluation result of the commutation device; The state evaluation algorithm in the scoring calculation module is implemented based on the coding information and evaluation state quantity of each evaluation component in the commutation device.

12. The system according to claim 11, characterized in that The scoring calculation module includes: A basic deduction submodule is used to obtain deduction information corresponding to the evaluation state quantity according to the evaluation state quantity of each evaluation component by using a preset state mapping relationship; A state quantity deduction submodule is used to perform a product operation on the deduction information and the weight coefficient corresponding to the evaluation state quantity set in advance, so as to obtain the state quantity deduction value corresponding to each evaluation component; The evaluation score calculation submodule is used to obtain the coding information and evaluation score of the commutation device based on the deductible score of the state quantity corresponding to each evaluation component.

13. The system according to claim 11, characterized in that The state evaluation module comprises: A green code evaluation submodule, for evaluating the health status of the commutation device as being in a normal operating state when the coding information of the commutation device is a green code; The red and yellow code evaluation submodule is used to obtain the health status evaluation result of the commutation device according to the evaluation score of the commutation device when the coding information of the commutation device is a yellow code or a red code.

14. An electronic device, characterized in that: include: at least one processor and memory; The memory and the processor are connected via a bus; The memory is used to store one or more programs; When the one or more programs are executed by the at least one processor, a method for evaluating the health status of a commutation device according to any one of claims 1 to 10 is implemented.

15. A computing device readable storage medium, characterized in that: An execution program is stored thereon, and when the execution program is executed, a health status evaluation method for a commutation device as described in any one of claims 1 to 10 is implemented.

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