Method for detecting relay protection device based on man-machine interaction

Abstract

The invention belongs to the field of intelligent power grids, and discloses a man-machine interaction-based relay protection device detection method. According to the invention, the intelligent mobile terminal collects a relay protection test result, inspection result information of mobile operation and maintenance and artificial correction parameters set according to the aging degree of equipment, and calls a corresponding relay protection device debugging result level to construct a relay protection device automatic test model; the relay protection device debugging result level is output in real time for each mobile operation and maintenance inspection result or relay protection test result by using the relay protection device automatic test model, and the automation of relay protection detection and verification and field data collection are realized by using the intelligent mobile terminal, so that data sharing is facilitated, and the working efficiency is improved. And the secondary professional digital management level is improved, so that the digital level and the operation efficiency of maintenance and debugging operation of the relay protection device are improved, burden is relieved for front-line workers, and safe and stable operation of a large power grid is supported.

Description

Technical Field

[0001] The present invention belongs to the technical field of smart grids, and in particular relates to a detection method for a relay protection device based on human-computer interaction. Background Art

[0002] Power relay protection devices are important equipment to ensure the stability and reliability of power transmission and transformation systems. However, due to differences in the operating conditions of circuits connected to power relay protection devices, differences in the distribution environment, and the service life and equipment quality of power relay protection devices, on the one hand, it is very easy for the circuit system connected to the power relay protection devices to experience overload, insufficient voltage, phase loss, high temperature and other situations that seriously affect the quality of power transmission and transformation; on the other hand, it is very easy for equipment failures to occur during the operation of power relay protection devices. Due to the wide distribution and wide range of use of power relay protection devices, it is currently difficult for staff to accurately monitor the operating status of each power relay protection device, nor is it possible to accurately evaluate and predict the operating status of each power relay protection device.

[0003] When accurately evaluating and predicting the operating status of relay protection devices, on the one hand, the levels of maintenance personnel are uneven, and the quality of debugging is difficult to guarantee. Although there are guiding documents such as debugging work instructions to guide team members to carry out relevant testing work, the configuration of test parameters according to the work instructions is more dependent on the technical level of the debugging personnel, and 100% correctness cannot be guaranteed. Some projects require repeated testing, resulting in low efficiency in the maintenance of relay protection devices. On the other hand, the workload of recording secondary equipment test data is large and the debugging efficiency is low. A large number of relay protection devices are repeatedly tested, the data is very large, and there is a lack of automatic analysis. After the test is completed, the report needs to be manually sorted, and paper reports are easily lost and damaged, which is not conducive to archiving and data sharing.

[0004] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art.

[0005] Therefore, there is an urgent need for a detection method for relay protection devices based on human-computer interaction to solve the above problems. Summary of the invention

[0006] In order to solve the above technical problems, the present invention proposes a detection method for a relay protection device based on human-computer interaction.

[0007] In a first aspect of the present invention, a detection method for a relay protection device based on human-computer interaction is provided, characterized in that the method comprises the following steps:

[0008] T1. The digital platform client obtains the first relay protection test data of the relay protection device, and the intelligent mobile terminal obtains the first relay protection operation and maintenance detection result in mobile operation and maintenance, and at the same time obtains the first aging correction parameter of the relay protection device;

[0009] T2, a first debugging detection vector feature constructed according to the first relay protection test data, the first relay protection operation and maintenance detection result, and the first aging correction parameter;

[0010] T3, calling the first relay protection debugging result level corresponding to the first debugging detection vector feature, and jointly constructing an automatic test model for a relay protection device by using the first debugging detection vector feature and the first relay protection debugging result level;

[0011] T4. The intelligent mobile terminal receives the second relay protection operation and maintenance detection result in mobile operation and maintenance, the second relay protection test data during the subsequent test of the relay protection device, and the second aging correction factor. The second debugging detection vector feature is constructed according to the second relay protection operation and maintenance detection result, the second relay protection test data, and the second aging correction factor. The relay protection device automatic test model processes the second debugging detection vector feature to generate a second relay protection debugging result level. According to the second relay protection debugging result level, the status of the relay protection device after each maintenance or operation and maintenance detection is digitally displayed in real time, which can effectively reduce the maintenance time and operation and maintenance costs.

[0012] Furthermore, the first relay protection test data or the second relay protection test data T f It is obtained by processing the electrical quantity data and non-electrical quantity data during the test.

[0013] Furthermore, the first relay protection operation and maintenance detection result includes the first electrical quantity data T of the relay protection device obtained during the operation and maintenance process. e and the first non-electrical quantity data T p , the first characteristic vector of the first relay protection operation and maintenance detection result is represented by T t (T e , T p ), T t (T e , T p ) is sent to the smart mobile terminal via Bluetooth, the second relay protection operation and maintenance detection result includes the second electrical quantity data and the second non-electrical quantity data of the relay protection obtained during the operation and maintenance process, the second relay protection operation and maintenance detection result is represented by a second eigenvector, and the smart mobile terminal uses the Internet to transmit the first eigenvector or the second eigenvector to the digital platform client.

[0014] Furthermore, the first debugging detection vector feature is T f 、T t And ∈ is processed, which is specifically expressed as (T f ,∈T t ), T f is the first relay protection test data, and the characteristic vector of the first relay protection operation and maintenance detection result is represented by T t (T e , T p ), ∈ is the first aging correction parameter, and the second debugging detection vector feature is obtained by the second relay protection test data, the second relay protection operation and maintenance detection result and the second aging correction parameter.

[0015] Furthermore, the first aging correction parameter or the second aging correction parameter ε is obtained by processing the service life of the relay protection device, the service life achieved and the maximum value of each electrical quantity data.

[0016] Furthermore, the first relay protection debugging result level or the second relay protection debugging result level is divided into three levels: normal, warning and serious, which respectively correspond to the values ​​obtained by the automatic test model of the relay protection device processing the first debugging detection vector feature or the second debugging detection vector feature. A value greater than zero indicates that the relay protection debugging result is normal, equal to zero indicates that the relay protection debugging result is a warning, and less than zero indicates that the relay protection debugging result is serious.

[0017] Furthermore, the automatic test model of the relay protection device adopts an improved classifier based on the Fisher criterion, and the calculation formula is as follows:

[0018]

[0019] F(T) is the output first relay protection debugging result level or the second relay protection debugging result level, ∈ is the first aging correction parameter or the second aging correction parameter, T f is the first relay protection test data or the second relay protection test data, W S is a normal vector perpendicular to the hyperplane, and T is the first debugging detection vector feature or the second debugging detection vector feature input.

[0020] A detection system for relay protection devices based on human-computer interaction is also provided, the system comprising a digital platform client module, a relay protection portable mobile terminal module, a relay protection device data acquisition module, a relay protection data processing module, a relay protection device automatic test model building module, and a digital platform debugging result display module, characterized in that:

[0021] The digital platform client module is used to obtain the first relay protection test data of the relay protection device, and is also used to obtain the second relay protection test data during the subsequent test of the relay protection device, and obtain the first relay protection debugging result level;

[0022] The portable mobile terminal module for relay protection is used to obtain the first relay protection operation and maintenance detection result in mobile operation and maintenance through the intelligent mobile terminal, and is also used to obtain the second relay protection operation and maintenance detection result in mobile operation and maintenance;

[0023] The relay protection device data acquisition module is used to acquire a first aging correction parameter of the relay protection device, and is also used to acquire a second aging correction parameter of the relay protection device;

[0024] The relay protection data processing module: constructs a first debugging detection vector feature according to the first relay protection test data, the first relay protection operation and maintenance detection result, and the first aging correction parameter; and also constructs a second debugging detection vector feature according to the second relay protection test data, the second relay protection operation and maintenance detection result, and the second aging correction parameter;

[0025] The relay protection device automatic test model construction module receives the first debugging detection vector feature and the first relay protection debugging result level, and uses the first debugging detection vector feature and the first relay protection debugging result level to construct a relay protection device automatic test model;

[0026] The digital platform debugging result display module: calls the relay protection device automatic test model to process the received second debugging detection vector feature, generates a second relay protection debugging result level, and digitally displays the status of the relay protection device after each inspection or operation and maintenance inspection in real time according to the second relay protection debugging result level.

[0027] Furthermore, the first relay protection test data or the second relay protection test data T f It is obtained by processing the electrical quantity data and non-electrical quantity data during the test.

[0028] Furthermore, the automatic test model of the relay protection device adopts an improved classifier based on the Fisher criterion, and the calculation formula is as follows:

[0029]

[0030] F(T) is the output first relay protection debugging result level or the second relay protection debugging result level, ∈ is the first aging correction parameter or the second aging correction parameter, T f is the first relay protection test data or the second relay protection test data, WS is a normal vector perpendicular to the hyperplane, and T is the first debugging detection vector feature or the second debugging detection vector feature input.

[0031] The present invention provides a detection method for relay protection devices based on human-computer interaction, uses an automatic test model for relay protection devices constructed by an improved Fisher model to output the level of relay protection device debugging results in real time for each mobile operation and maintenance inspection result or relay protection test result, uses an intelligent mobile terminal to realize the automation of relay protection detection and verification and on-site data collection, and processes the collected data through a platform client, thereby improving the real-time detection of the constructed model for the relay protection device in this detection scenario, and updating and processing related data through an intelligent terminal, which is convenient for data sharing to improve work efficiency and improve the level of secondary professional digital management, thereby improving the digital level and operation efficiency of relay protection device maintenance and debugging operations, reducing the burden on front-line staff and supporting the safe and stable operation of large power grids. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a flow chart of a detection method of a relay protection device based on human-computer interaction of the present invention;

[0033] Figure 2 It is a schematic diagram of the structure of a detection system of a relay protection device based on human-computer interaction of the present invention;

[0034] Figure 3 It is a schematic diagram of some parameters of the relay protection device in the present invention;

[0035] Figure 4 It is a schematic diagram of the principle based on Fisher in the present invention. DETAILED DESCRIPTION

[0036] The invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0037] The first embodiment of the present invention:

[0038] In a first aspect of the present invention, in order to solve the above technical problems, the present invention provides a detection method of a relay protection device based on human-computer interaction, characterized in that the method comprises the following steps:

[0039] T1. The digital platform client obtains the first relay protection test data of the relay protection device, and the intelligent mobile terminal obtains the first relay protection operation and maintenance detection result in mobile operation and maintenance, and at the same time obtains the first aging correction parameter of the relay protection device;

[0040] T2, a first debugging detection vector feature constructed according to the first relay protection test data, the first relay protection operation and maintenance detection result, and the first aging correction parameter;

[0041] T3, calling the first relay protection debugging result level corresponding to the first debugging detection vector feature, and jointly constructing an automatic test model for a relay protection device by using the first debugging detection vector feature and the first relay protection debugging result level;

[0042] T4. The intelligent mobile terminal receives the second relay protection operation and maintenance detection result in mobile operation and maintenance, the second relay protection test data during the subsequent test of the relay protection device, and the second aging correction factor. The second debugging detection vector feature is constructed according to the second relay protection operation and maintenance detection result, the second relay protection test data, and the second aging correction factor. The relay protection device automatic test model processes the second debugging detection vector feature to generate a second relay protection debugging result level. According to the second relay protection debugging result level, the status of the relay protection device after each maintenance or operation and maintenance detection is digitally displayed in real time, which can effectively reduce the maintenance time and operation and maintenance costs.

[0043] Furthermore, the first relay protection test data or the second relay protection test data T f The calculation formula is obtained by processing the electrical quantity data and non-electrical quantity data during the test:

[0044]

[0045] Where, T f is the first relay protection test data or the second relay protection test data obtained by processing the electrical quantity data and the non-electrical quantity data after the relay protection device is tested, k 1 is the type of electrical quantity that the relay protector can handle, k 2 is the type of non-electrical quantity that the relay protection device can handle, T 1 Indicates the electrical parameter value of the relay protection device during testing, T min is the minimum electrical parameter value when testing the relay protection device, T max is the maximum electrical parameter value of the relay protection device during testing, T 2 Indicates the non-electrical parameter value during relay protection test, T μ It represents the mean value of non-electrical parameter value during relay protection test, T σ Indicates the standard deviation of non-electrical parameter values ​​during relay protection testing.

[0046] In this embodiment, electrical quantities refer to various parameters in the power system that are directly related to electricity, such as current, voltage, frequency, power, impedance, capacitance, etc. Non-electrical quantities refer to parameters other than electrical quantities involved in the power system, such as temperature, pressure, speed, deformation, flow, liquid level, etc.

[0047] Furthermore, the first relay protection operation and maintenance detection result includes the first electrical quantity data T of the relay protection device obtained during the operation and maintenance process. e and the first non-electrical quantity data T p , the first characteristic vector of the first relay protection operation and maintenance detection result is represented by T t (T e , T p ), T t (T e , T p ) is sent to the smart mobile terminal via Bluetooth, the second relay protection operation and maintenance detection result includes the second electrical quantity data and the second non-electrical quantity data of the relay protection obtained during the operation and maintenance process, the second relay protection operation and maintenance detection result is represented by a second eigenvector, and the smart mobile terminal uses the Internet to transmit the first eigenvector or the second eigenvector to the digital platform client.

[0048] Furthermore, the first debugging detection vector feature is T f 、T t And ∈ is processed, which is specifically expressed as (T f ,∈T t ), T f is the first relay protection test data, and the characteristic vector of the first relay protection operation and maintenance detection result is represented by T t (T e , T p ), ∈ is the first aging correction parameter, and the second debugging detection vector feature is obtained by the second relay protection test data, the second relay protection operation and maintenance detection result and the second aging correction parameter.

[0049] Furthermore, the first aging correction parameter or the second aging correction parameter ∈ is obtained by processing the service life of the relay protection device, the service life and the maximum value of each electrical quantity, and the calculation formula is:

[0050]

[0051] Furthermore, the first debugging detection vector feature or the second debugging detection vector feature is T f 、T t And ∈ is processed, which is specifically expressed as (T f ,∈T t ), T fis the first relay protection test data or the second relay protection test data, and the feature vector of the first relay protection operation and maintenance detection result or the second relay protection operation and maintenance detection result is represented by T t (T e , T p ), ∈ is the first aging correction parameter or the second aging correction parameter.

[0052] Furthermore, the first relay protection debugging result level or the second relay protection debugging result level is divided into three levels: normal, warning and serious, which respectively correspond to the values ​​obtained by the automatic test model of the relay protection device processing the first debugging detection vector feature or the second debugging detection vector feature. A value greater than zero indicates that the relay protection debugging result is normal, equal to zero indicates that the relay protection debugging result is a warning, and less than zero indicates that the relay protection debugging result is serious.

[0053] Furthermore, the automatic test model of the relay protection device adopts an improved classifier based on the Fisher criterion, and the calculation formula is as follows:

[0054]

[0055] F(T) is the output first relay protection debugging result level or the second relay protection debugging result level, ∈ is the first aging correction parameter or the second aging correction parameter, T f is the first relay protection test data or the second relay protection test data, W S is a normal vector perpendicular to the hyperplane, and T is the first debugging detection vector feature or the second debugging detection vector feature input.

[0056] A detection system for relay protection devices based on human-computer interaction is also provided, the system comprising a digital platform client module, a relay protection intelligent mobile terminal module, a relay protection device data acquisition module, a relay protection data processing module, a relay protection device automatic test model building module, and a digital platform debugging result display module, characterized in that:

[0057] The digital platform client module is used to obtain the first relay protection test data of the relay protection device, and is also used to obtain the second relay protection test data during the subsequent test of the relay protection device, and obtain the first relay protection debugging result level;

[0058] The relay protection intelligent mobile terminal module is used to obtain the first relay protection operation and maintenance detection result in mobile operation and maintenance through the intelligent mobile terminal, and is also used to obtain the second relay protection operation and maintenance detection result in mobile operation and maintenance;

[0059] The relay protection device data acquisition module is used to acquire a first aging correction parameter of the relay protection device, and is also used to acquire a second aging correction parameter of the relay protection device;

[0060] The relay protection data processing module: constructs a first debugging detection vector feature according to the first relay protection test data, the first relay protection operation and maintenance detection result, and the first aging correction parameter; and also constructs a second debugging detection vector feature according to the second relay protection test data, the second relay protection operation and maintenance detection result, and the second aging correction parameter;

[0061] The relay protection device automatic test model construction module receives the first debugging detection vector feature and the first relay protection debugging result level, and uses the first debugging detection vector feature and the first relay protection debugging result level to construct a relay protection device automatic test model;

[0062] The digital platform debugging result display module: calls the relay protection device automatic test model to process the received second debugging detection vector feature, generates a second relay protection debugging result level, and digitally displays the status of the relay protection device after each inspection or operation and maintenance inspection in real time according to the second relay protection debugging result level.

[0063] Furthermore, the first relay protection test data or the second relay protection test data T f The calculation formula is obtained by processing the electrical quantity data and non-electrical quantity data during the test:

[0064]

[0065] Where, T f is the first relay protection test data or the second relay protection test data obtained by processing the electrical quantity data and the non-electrical quantity data after the relay protection device is tested, k 1 is the type of electrical quantity that the relay protector can handle, k 2 is the type of non-electrical quantity that the relay protection device can handle, T 1 Indicates the electrical parameter value of the relay protection device during testing, T min is the minimum electrical parameter value when testing the relay protection device, T max is the maximum electrical parameter value of the relay protection device during testing, T 2 Indicates the non-electrical parameter value during relay protection test, T μ It represents the mean value of non-electrical parameter value during relay protection test, T σ Indicates the standard deviation of non-electrical parameter values ​​during relay protection testing.

[0066] Furthermore, the automatic test model of the relay protection device adopts an improved classifier based on the Fisher criterion, and the calculation formula is as follows:

[0067]

[0068] F(T) is the output first relay protection debugging result level or the second relay protection debugging result level, ∈ is the first aging correction parameter or the second aging correction parameter, T f is the first relay protection test data or the second relay protection test data, W S is a normal vector perpendicular to the hyperplane, and T is the first debugging detection vector feature or the second debugging detection vector feature input.

[0069] The present invention provides a detection method for relay protection devices based on human-computer interaction, uses an automatic test model for relay protection devices constructed by an improved Fisher model to output the level of relay protection device debugging results in real time for each mobile operation and maintenance inspection result or relay protection test result, uses an intelligent mobile terminal to realize the automation of relay protection detection and verification and on-site data collection, and processes the collected data through a platform client, thereby improving the real-time detection of the constructed model for the relay protection device in this detection scenario, and updating and processing related data through an intelligent terminal, which is convenient for data sharing to improve work efficiency and improve the level of secondary professional digital management, thereby improving the digital level and operation efficiency of relay protection device maintenance and debugging operations, reducing the burden on front-line staff and supporting the safe and stable operation of large power grids.

[0070] A combination of multiple embodiments of the present invention can achieve all of the above effects, but it is not required that each embodiment of the present invention achieve all of the above advantages and effects, because each embodiment of the present invention can constitute an independent technical solution and make one or more contributions to the prior art.

[0071] The present invention does not particularly specify the structure of some modules, which shall be subject to the contents recorded in the prior art. The prior art mentioned in the above background technology section and the specific embodiment section of the present invention can be used as part of the present invention to understand the meaning of some technical features or parameters. The scope of protection of the present invention shall be subject to the contents actually recorded in the claims.

Claims

1. A detection method for a relay protection device based on human-computer interaction, characterized in that: The method comprises the following steps: T1. The digital platform client obtains the first relay protection test data of the relay protection device, and the smart mobile terminal obtains the first relay protection operation and maintenance detection result in mobile operation and maintenance. At the same time, the smart mobile terminal obtains the first aging correction parameter of the relay protection device; T2. Acquire a first debugging detection vector feature according to the first relay protection test data, the first relay protection operation and maintenance detection result, and the first aging correction parameter; T3. Obtaining a first relay protection debugging result level corresponding to the first debugging detection vector feature, and constructing an automatic test model for a relay protection device based on the first debugging detection vector feature and the first relay protection debugging result level; T4. The intelligent mobile terminal obtains the second relay protection operation and maintenance detection result in mobile operation and maintenance, the second relay protection test data and the second aging correction parameter of the relay protection device, obtains the second debugging detection vector feature according to the second relay protection operation and maintenance detection result, the second relay protection test data and the second aging correction parameter, and the relay protection device automatic test model processes the second debugging detection vector feature to generate a second relay protection debugging result level; according to the second relay protection debugging result level, the status of the relay protection device after maintenance or operation and maintenance detection is displayed in real time.

2. A detection method for a relay protection device based on human-computer interaction as claimed in claim 1, characterized in that: The first relay protection test data or the second relay protection test data is obtained by processing the electrical quantity data and the non-electrical quantity data during the test.

3. The detection method of a relay protection device based on human-computer interaction according to claim 1, characterized in that: The first relay protection operation and maintenance detection result includes the first electrical quantity data T of the relay protection device obtained during the operation and maintenance process. e and the first non-electrical quantity data T p , the first characteristic vector of the first relay protection operation and maintenance detection result is represented by T t (T e , T p ), T t (T e , T p ) is sent to the smart mobile terminal via Bluetooth, the second relay protection operation and maintenance detection result includes the second electrical quantity data and the second non-electrical quantity data of the relay protection obtained during the operation and maintenance process, the second relay protection operation and maintenance detection result is represented by a second eigenvector, and the smart mobile terminal uses the Internet to transmit the first eigenvector or the second eigenvector to the digital platform client.

4. A detection method for a relay protection device based on human-computer interaction as claimed in claim 3, characterized in that: The first aging correction parameter or the second aging correction parameter is obtained by processing the service life, the used service life and the maximum value of each electrical quantity data of the relay protection device.

5. A detection method for a relay protection device based on human-computer interaction as claimed in claim 4, characterized in that: The first debugging detection vector feature is T f , T t And ∈ is processed, which is specifically expressed as (T f ,∈T t ), T f is the first relay protection test data, and the characteristic vector of the first relay protection operation and maintenance detection result is represented by T t (T e , T p ), ∈ is the first aging correction parameter, and the second debugging detection vector feature is obtained by the second relay protection test data, the second relay protection operation and maintenance detection result and the second aging correction parameter.

6. A detection method for a relay protection device based on human-computer interaction as claimed in claim 5, characterized in that: The first relay protection debugging result level or the second relay protection debugging result level is divided into three levels: normal, warning and serious, which respectively correspond to the values ​​obtained by the automatic test model of the relay protection device processing the first debugging detection vector feature or the second debugging detection vector feature being greater than zero, equal to zero and less than zero.

7. A detection method for a relay protection device based on human-computer interaction as claimed in claim 6, characterized in that: The automatic test model for relay protection device adopts an improved classifier based on Fisher criterion.

8. A detection system for relay protection devices based on human-computer interaction, the system comprising a digital platform client module, a relay protection portable mobile terminal module, a relay protection device data acquisition module, a relay protection data processing module, a relay protection device automatic test model building module, and a digital platform debugging result display module, characterized in that: The digital platform client module is used to obtain the first relay protection test data of the relay protection device, and is also used to obtain the second relay protection test data during the subsequent test of the relay protection device, and obtain the first relay protection debugging result level; The portable mobile terminal module for relay protection is used to obtain the first relay protection operation and maintenance detection result in mobile operation and maintenance through the intelligent mobile terminal, and is also used to obtain the second relay protection operation and maintenance detection result in mobile operation and maintenance; The relay protection device data acquisition module is used to acquire a first aging correction parameter of the relay protection device, and is also used to acquire a second aging correction parameter of the relay protection device; The relay protection data processing module: constructs a first debugging detection vector feature according to the first relay protection test data, the first relay protection operation and maintenance detection result, and the first aging correction parameter; A second debugging detection vector feature is also constructed according to the second relay protection test data, the second relay protection operation and maintenance detection result, and the second aging correction parameter; The relay protection device automatic test model construction module receives the first debugging detection vector feature and the first relay protection debugging result level, and uses the first debugging detection vector feature and the first relay protection debugging result level to construct a relay protection device automatic test model; The digital platform debugging result display module: calls the relay protection device automatic test model to process the received second debugging detection vector feature, generates a second relay protection debugging result level, and digitally displays the status of the relay protection device after each inspection or operation and maintenance inspection in real time according to the second relay protection debugging result level.

9. A detection system for relay protection devices based on human-computer interaction as claimed in claim 8, characterized in that: The first relay protection test data or the second relay protection test data T f It is obtained by processing the electrical quantity data and non-electrical quantity data during the test.

10. A detection system for relay protection devices based on human-computer interaction as claimed in claim 9, characterized in that: The automatic test model for relay protection device adopts an improved classifier based on Fisher criterion.

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