A capacitor bank insulation status monitoring system and method

Abstract

The present invention belongs to the technical field of capacitor insulation monitoring, and is used to solve the problem that the prior art cannot eliminate the influence of the operating environment on the insulation state of a capacitor group, and the real insulation state of the capacitor group cannot be effectively evaluated. Specifically, it is a capacitor group insulation state monitoring system and method, wherein the capacitor group insulation state monitoring system includes an insulation monitoring platform, and the insulation monitoring platform is communicatively connected with a state monitoring module, an environment debugging module, a comprehensive analysis module and a database; the state monitoring module is used to perform a simulation test on the insulation state of the capacitor group under a standard environment: a standard simulation environment is generated for the capacitor group, and an insulation test is performed on the capacitor group under the standard simulation environment; the present invention can perform an insulation test on the insulation state of the capacitor group under a standard environment, generate a standard simulation environment after obtaining standard environment parameters, and evaluate the insulation state quality under the standard simulation environment.

Description

Technical Field

[0001] The invention belongs to the technical field of capacitor insulation monitoring, and in particular relates to a capacitor group insulation state monitoring system and method. Background Art

[0002] A capacitor bank is a working group composed of multiple capacitors, and is available in two forms: series and parallel. The capacitor bank has the characteristics of large capacity, large number of units, and high voltage level. The use of parallel reactor groups can compensate for the reactive power of the line, and the use of series capacitor compensation technology is one of the effective means to improve the stability limit and economy of the transmission and transformation network.

[0003] The capacitor bank insulation status monitoring system in the prior art can only monitor the insulation status based on the insulation resistance. However, this method cannot eliminate the influence of the operating environment on the insulation status of the capacitor bank. Since there are many environmental factors affecting the insulation status of the capacitor, the true insulation status of the capacitor bank cannot be effectively evaluated.

[0004] In view of the above technical problems, this application proposes a solution. Summary of the invention

[0005] The object of the present invention is to provide a capacitor bank insulation state monitoring system and method, which is used to solve the problem that the prior art cannot eliminate the influence of the operating environment on the insulation state of the capacitor bank and the real insulation state of the capacitor bank cannot be effectively evaluated.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A capacitor bank insulation status monitoring system includes an insulation monitoring platform, wherein the insulation monitoring platform is communicatively connected to a status monitoring module, an environmental debugging module, a comprehensive analysis module, and a database;

[0008] The state monitoring module is used to simulate the insulation state of the capacitor bank under the standard environment: obtain the temperature standard value and humidity standard value of the capacitor bank operating environment, generate a standard simulation environment for the capacitor bank, the parameters of the standard simulation environment are: the temperature is set to the temperature standard value, the humidity is set to the humidity standard value, and there is no dust. The insulation test of the capacitor bank is performed under the standard simulation environment to obtain the test coefficient CS; the test coefficient CS is used to determine whether the insulation state of the capacitor bank under the standard simulation environment meets the requirements;

[0009] The environmental debugging module is used to perform environmental simulation debugging analysis on the capacitor bank and obtain the temperature stability value WW, humidity stability value SW and dust stability value HW; the temperature stability value WW, humidity stability value SW and dust stability value HW of the capacitor bank are sent to the comprehensive analysis module through the insulation monitoring platform;

[0010] The comprehensive analysis module is used to perform comprehensive analysis on the insulation status of the capacitor bank.

[0011] Furthermore, the process of obtaining the temperature standard value and the humidity standard value of the capacitor bank operating environment includes: obtaining the temperature standard range and the humidity standard range of the capacitor bank operating environment, marking the average value of the maximum value and the minimum value of the temperature standard range as the temperature standard value, and marking the average value of the maximum value and the minimum value of the humidity standard range as the humidity standard value.

[0012] Furthermore, the specific process of performing insulation testing on the capacitor group under the standard simulation environment includes: using an AC test power supply and a DC test power supply to perform insulation testing on the capacitor group under the standard simulation environment and obtaining an AC insulation value JJ and a DC insulation value ZJ, and obtaining a test coefficient CS of the capacitor group under the standard simulation environment through the formula CS=p1*JJ+p2*ZJ, wherein p1 and p2 are both proportional coefficients, and p1>p2>1.

[0013] Furthermore, the specific process of determining whether the insulation state of the capacitor group under the standard simulation environment meets the requirements includes: obtaining the test threshold CSmin of the capacitor group under the standard simulation environment through the database, and comparing the test coefficient CS of the capacitor group under the standard simulation environment with the test threshold CSmin: if the test coefficient CS is less than the test threshold CSmin, it is determined that the insulation state of the capacitor group does not meet the requirements, an insulation abnormality signal is generated, and the insulation abnormality signal is sent to the mobile phone terminal of the administrator through the insulation monitoring platform; if the test coefficient CS is greater than or equal to the test threshold CSmin, it is determined that the insulation state of the capacitor group under the standard simulation environment meets the requirements, an environmental debugging signal is generated, and the environmental debugging signal is sent to the environmental debugging module through the insulation monitoring platform.

[0014] Furthermore, the process of obtaining the temperature stability value WW and the humidity stability value SW includes: setting several temperature adjustment values ​​within the temperature standard range, generating a temperature simulation environment for the capacitor group, the parameters of the temperature simulation environment are: the temperature is set to the temperature adjustment value, the humidity is set to the humidity standard value, and dust-free, performing an insulation test on the capacitor group in the temperature simulation environment and obtaining the test coefficient CS of the temperature simulation environment, performing variance calculation on the test coefficient CS corresponding to all temperature adjustment values ​​to obtain the temperature stability value WW; setting several humidity adjustment values ​​within the humidity standard range, generating a humidity simulation environment for the capacitor group, the parameters of the humidity simulation environment are: the temperature is set to the temperature standard value, the humidity is set to the humidity adjustment value, and dust-free, performing an insulation test on the capacitor group in the humidity simulation environment and obtaining the test coefficient CS of the humidity simulation environment, performing variance calculation on the test coefficient CS corresponding to all humidity adjustment values ​​to obtain the humidity stability value SW.

[0015] Furthermore, the process of obtaining the dust stability value HW includes: obtaining the maximum dust concentration of the operating environment of the capacitor group, setting several dust adjustment values ​​between zero and the maximum dust concentration, generating a dust simulation environment for the capacitor group, and the parameters of the dust simulation environment are: the temperature is set to the temperature standard value, the humidity is set to the humidity standard value, and the dust concentration is set to the dust adjustment value. In the dust simulation environment, the capacitor group is insulation tested and the test coefficient CS of the dust simulation environment is obtained, and the variance of the test coefficient CS corresponding to all dust adjustment values ​​is calculated to obtain the dust stability value HW.

[0016] Furthermore, the specific process of the comprehensive analysis module for comprehensive analysis of the insulation status of the capacitor bank includes: The stability coefficient WD of the capacitor bank is obtained, wherein m1, m2 and m3 are all proportional coefficients, and m1>m2>m3>1; whether the insulation stability state of the capacitor bank meets the requirements is determined by the stability coefficient WD.

[0017] Furthermore, whether the insulation stability state of the capacitor group meets the requirements is determined by obtaining the stability threshold WDmax through the database, and the stability coefficient WD of the capacitor group is compared with the stability threshold WDmax: if the stability coefficient WD is less than the stability threshold WDmax, it is determined that the insulation stability state of the capacitor group meets the requirements, and an insulation stability signal is generated and sent to the mobile phone terminal of the manager through the insulation monitoring platform; if the stability coefficient WD is greater than or equal to the stability threshold WDmax, it is determined that the insulation stability state of the capacitor group does not meet the requirements, and a stability abnormality signal is generated and sent to the mobile phone terminal of the manager through the insulation monitoring platform.

[0018] A method for monitoring the insulation status of a capacitor bank comprises the following steps:

[0019] Step 1: Conduct a simulation test on the insulation state of the capacitor bank under a standard environment: obtain the temperature standard range and humidity standard range of the capacitor bank operating environment, calculate the temperature standard value and humidity standard value respectively through the temperature standard range and humidity standard range, and generate a standard simulation environment for the capacitor bank;

[0020] Step 2: Under the standard simulation environment, an AC test power supply and a DC test power supply are used to perform insulation tests on the capacitor bank and obtain the test coefficient CS of the capacitor bank under the standard simulation environment. The test coefficient CS is used to determine whether the insulation state of the capacitor bank under the standard simulation environment meets the requirements;

[0021] Step 3: Perform environmental simulation debugging analysis on the capacitor bank and obtain the temperature stability value WW, humidity stability value SW and dust stability value HW, and perform numerical calculations on the temperature stability value WW, humidity stability value SW and dust stability value HW to obtain the stability coefficient WD of the capacitor bank;

[0022] Step 4: Determine whether the insulation stability state of the capacitor group meets the requirements through the stability coefficient WD, and send a stability abnormality signal to the manager's mobile terminal through the insulation monitoring platform when the insulation stability state does not meet the requirements.

[0023] The present invention has the following beneficial effects:

[0024] The state monitoring module can be used to perform insulation tests on the insulation state of the capacitor bank under a standard environment. After obtaining the standard environment parameters, a standard simulation environment is generated, and then an insulation test is performed to obtain the test coefficient under the standard simulation environment. The insulation state under the standard simulation environment is evaluated based on the test coefficient.

[0025] The environmental debugging module can be used to perform environmental simulation debugging and analysis on the capacitor bank, adjust a single parameter in the capacitor bank test environment, and then calculate the deviation of different test results corresponding to the single parameter of the capacitor bank to obtain the temperature stability value, humidity stability value and dust stability value, providing data support for the comprehensive analysis and evaluation process;

[0026] The comprehensive analysis module can be used to comprehensively analyze the insulation status of the capacitor group, and the temperature stability value, humidity stability value and dust stability value can be comprehensively analyzed and calculated to obtain the stability coefficient. The stability coefficient can be used to evaluate the insulation stability of the capacitor group under different environments, thereby improving the accuracy of the insulation monitoring results of the capacitor group. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 is a system block diagram of Embodiment 1 of the present invention;

[0029] Figure 2 This is a flow chart of the method of Embodiment 2 of the present invention. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0031] like Figure 1 As shown, a capacitor bank insulation status monitoring system includes an insulation monitoring platform, and the insulation monitoring platform is communicatively connected with a status monitoring module, an environmental debugging module, a comprehensive analysis module and a database.

[0032] The status monitoring module is used to simulate the insulation status of the capacitor group under a standard environment: obtain the temperature standard range and humidity standard range of the capacitor group operating environment, mark the average value of the maximum and minimum values ​​of the temperature standard range as the temperature standard value, and mark the average value of the maximum and minimum values ​​of the humidity standard range as the humidity standard value, and generate a standard simulation environment for the capacitor group. The parameters of the standard simulation environment are: the temperature is set to the temperature standard value, the humidity is set to the humidity standard value, and it is dust-free. In the standard simulation environment, an AC test power supply and a DC test power supply are used to perform insulation tests on the capacitor group and obtain the AC insulation value JJ and the DC insulation value ZJ. The test coefficient CS of the capacitor group under the standard simulation environment is obtained by the formula CS=p1*JJ+p2*ZJ, where p1 and p2 are both proportional coefficients, and p1>p2>1; the capacitor group under the standard simulation environment is obtained through the database. The test threshold CSmin in the standard simulation environment is determined, and the test coefficient CS of the capacitor group in the standard simulation environment is compared with the test threshold CSmin: if the test coefficient CS is less than the test threshold CSmin, it is determined that the insulation state of the capacitor group does not meet the requirements, and an insulation abnormality signal is generated and sent to the administrator's mobile terminal through the insulation monitoring platform; if the test coefficient CS is greater than or equal to the test threshold CSmin, it is determined that the insulation state of the capacitor group in the standard simulation environment meets the requirements, and an environmental debugging signal is generated and sent to the environmental debugging module through the insulation monitoring platform; an insulation test is performed on the insulation state of the capacitor group in the standard environment, and a standard simulation environment is generated after obtaining the standard environmental parameters, and then an insulation test is performed to obtain the test coefficient under the standard simulation environment, and the insulation state under the standard simulation environment is evaluated according to the test coefficient.

[0033] The environmental debugging module is used to perform environmental simulation debugging and analysis on the capacitor bank: set several temperature adjustment values ​​within the temperature standard range to generate a temperature simulation environment for the capacitor bank. The parameters of the temperature simulation environment are: the temperature is set to the temperature adjustment value, the humidity is set to the humidity standard value, and dust-free. In the temperature simulation environment, the capacitor bank is tested for insulation and the test coefficient CS of the temperature simulation environment is obtained. The variance of the test coefficient CS corresponding to all temperature adjustment values ​​is calculated to obtain the temperature stability value WW; set several humidity adjustment values ​​within the humidity standard range to generate a humidity simulation environment for the capacitor bank. The parameters of the humidity simulation environment are: the temperature is set to the temperature standard value, the humidity is set to the humidity adjustment value, and dust-free. In the humidity simulation environment, the capacitor bank is tested for insulation and the test coefficient CS of the humidity simulation environment is obtained. The variance of the test coefficient CS corresponding to all humidity adjustment values ​​is calculated to obtain the humidity stability value SW; obtain the capacitor bank operation environment The maximum dust concentration of the environment is set, and several dust adjustment values ​​are set between zero and the maximum dust concentration to generate a dust simulation environment for the capacitor bank. The parameters of the dust simulation environment are: the temperature is set to the temperature standard value, the humidity is set to the humidity standard value, and the dust concentration is set to the dust adjustment value. The insulation test of the capacitor bank is carried out in the dust simulation environment and the test coefficient CS of the dust simulation environment is obtained. The variance of the test coefficient CS corresponding to all dust adjustment values ​​is calculated to obtain the dust stability value HW; the temperature stability value WW, humidity stability value SW and dust stability value HW of the capacitor bank are sent to the comprehensive analysis module through the insulation monitoring platform; the environmental simulation debugging analysis of the capacitor bank is carried out, the single parameter in the capacitor bank test environment is adjusted, and then the deviation degree of different test results corresponding to the capacitor bank in the single parameter is calculated to obtain the temperature stability value, humidity stability value and dust stability value, so as to provide data support for the comprehensive analysis and evaluation process.

[0034] The comprehensive analysis module is used to conduct a comprehensive analysis of the insulation status of the capacitor bank: The stability coefficient WD of the capacitor group is obtained, where m1, m2 and m3 are all proportional coefficients, and m1>m2>m3>1; the stability threshold WDmax is obtained through the database, and the stability coefficient WD of the capacitor group is compared with the stability threshold WDmax: if the stability coefficient WD is less than the stability threshold WDmax, it is determined that the insulation stability state of the capacitor group meets the requirements, an insulation stability signal is generated and the insulation stability signal is sent to the mobile terminal of the manager through the insulation monitoring platform; if the stability coefficient WD is greater than or equal to the stability threshold WDmax, it is determined that the insulation stability state of the capacitor group does not meet the requirements, a stability abnormality signal is generated and the stability abnormality signal is sent to the mobile terminal of the manager through the insulation monitoring platform; the insulation state of the capacitor group is comprehensively analyzed, and the temperature stability value, humidity stability value and dust stability value are comprehensively analyzed and calculated to obtain the stability coefficient, and the insulation stability of the capacitor group under different environments is evaluated through the stability coefficient, thereby improving the accuracy of the insulation monitoring results of the capacitor group. Embodiment 2

[0035] like Figure 2 As shown, a method for monitoring the insulation status of a capacitor bank comprises the following steps:

[0036] Step 1: Conduct a simulation test on the insulation state of the capacitor bank under a standard environment: obtain the temperature standard range and humidity standard range of the capacitor bank operating environment, calculate the temperature standard value and humidity standard value respectively through the temperature standard range and humidity standard range, and generate a standard simulation environment for the capacitor bank;

[0037] Step 2: Under the standard simulation environment, an AC test power supply and a DC test power supply are used to perform insulation tests on the capacitor bank and obtain a test coefficient CS of the capacitor bank under the standard simulation environment. The test coefficient CS is used to determine whether the insulation state of the capacitor bank under the standard simulation environment meets the requirements;

[0038] Step 3: Perform environmental simulation debugging analysis on the capacitor bank and obtain the temperature stability value WW, humidity stability value SW and dust stability value HW, and perform numerical calculations on the temperature stability value WW, humidity stability value SW and dust stability value HW to obtain the stability coefficient WD of the capacitor bank;

[0039] Step 4: Determine whether the insulation stability state of the capacitor group meets the requirements through the stability coefficient WD, and send a stability abnormality signal to the manager's mobile terminal through the insulation monitoring platform when the insulation stability state does not meet the requirements.

[0040] A capacitor bank insulation state monitoring system and method are provided. When working, a temperature standard range and a humidity standard range of a capacitor bank operating environment are obtained, and a temperature standard value and a humidity standard value are calculated respectively through the temperature standard range and the humidity standard range to generate a standard simulation environment for the capacitor bank; an AC test power supply and a DC test power supply are respectively used to perform insulation test on the capacitor bank in the standard simulation environment to obtain a test coefficient CS of the capacitor bank in the standard simulation environment, and whether the insulation state of the capacitor bank in the standard simulation environment meets the requirements is determined through the test coefficient CS; an environmental simulation debugging analysis is performed on the capacitor bank to obtain a temperature stability value WW, a humidity stability value SW and a dust stability value HW, and the temperature stability value WW, the humidity stability value SW and the dust stability value HW are numerically calculated to obtain a stability coefficient WD of the capacitor bank; whether the insulation stability state of the capacitor bank meets the requirements is determined through the stability coefficient WD, and when the insulation stability state does not meet the requirements, a stability abnormality signal is sent to a mobile phone terminal of a manager through an insulation monitoring platform.

[0041] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0042] The above formulas are obtained by collecting a large amount of data and performing software simulation to select a formula close to the actual value. The coefficients in the formula are set by technicians in this field according to actual conditions; for example: Formula ; A technician in this field collects multiple groups of sample data and sets a corresponding stability coefficient for each group of sample data; Substitute the set stability coefficient and the collected sample data into the formula, any three formulas constitute a three-variable linear equation system, screen the calculated coefficients and take the average, and obtain the values ​​of m1, m2 and m3 as 3.86, 2.43 and 2.07 respectively;

[0043] The size of the coefficient is to quantify each parameter to obtain a specific value for subsequent comparison. The size of the coefficient depends on the amount of sample data and the preliminary setting of the corresponding stability coefficient for each set of sample data by technical personnel in this field; as long as it does not affect the proportional relationship between the parameter and the quantized value, such as the stability coefficient is proportional to the value of the temperature stability value.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0045] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A capacitor bank insulation status monitoring system, characterized in that: It includes an insulation monitoring platform, which is communicatively connected with a state monitoring module, an environment debugging module, a comprehensive analysis module and a database; The state monitoring module is used to simulate the insulation state of the capacitor bank under the standard environment: obtain the temperature standard value and humidity standard value of the capacitor bank operating environment, generate a standard simulation environment for the capacitor bank, the parameters of the standard simulation environment are: the temperature is set to the temperature standard value, the humidity is set to the humidity standard value, and there is no dust. The insulation test of the capacitor bank is performed under the standard simulation environment to obtain the test coefficient CS; the test coefficient CS is used to determine whether the insulation state of the capacitor bank under the standard simulation environment meets the requirements; The environmental debugging module is used to perform environmental simulation debugging analysis on the capacitor bank and obtain the temperature stability value WW, humidity stability value SW and dust stability value HW; the temperature stability value WW, humidity stability value SW and dust stability value HW of the capacitor bank are sent to the comprehensive analysis module through the insulation monitoring platform; The comprehensive analysis module is used to conduct a comprehensive analysis on the insulation status of the capacitor bank; The process of obtaining the temperature stability value WW and the humidity stability value SW includes: setting a number of temperature adjustment values ​​within the temperature standard range, generating a temperature simulation environment for the capacitor bank, the parameters of the temperature simulation environment are: the temperature is set to the temperature adjustment value, the humidity is set to the humidity standard value, and dust-free, performing an insulation test on the capacitor bank in the temperature simulation environment and obtaining the test coefficient CS of the temperature simulation environment, performing variance calculation on the test coefficient CS corresponding to all temperature adjustment values ​​to obtain the temperature stability value WW; setting a number of humidity adjustment values ​​within the humidity standard range, generating a humidity simulation environment for the capacitor bank, the parameters of the humidity simulation environment are: the temperature is set to the temperature standard value, the humidity is set to the humidity adjustment value, and dust-free, performing an insulation test on the capacitor bank in the humidity simulation environment and obtaining the test coefficient CS of the humidity simulation environment, performing variance calculation on the test coefficient CS corresponding to all humidity adjustment values ​​to obtain the humidity stability value SW; The process of obtaining the dust stability value HW includes: obtaining the maximum dust concentration of the operating environment of the capacitor bank, setting a number of dust adjustment values ​​between zero and the maximum dust concentration, generating a dust simulation environment for the capacitor bank, the parameters of the dust simulation environment are: the temperature is set to the temperature standard value, the humidity is set to the humidity standard value, the dust concentration is set to the dust adjustment value, the capacitor bank is insulation tested in the dust simulation environment and the test coefficient CS of the dust simulation environment is obtained, and the variance of the test coefficient CS corresponding to all dust adjustment values ​​is calculated to obtain the dust stability value HW; The comprehensive analysis module conducts a comprehensive analysis on the insulation status of the capacitor bank. The specific process includes: The stability coefficient WD of the capacitor bank is obtained, wherein m1, m2 and m3 are all proportional coefficients, and m1>m2>m3>1; whether the insulation stability state of the capacitor bank meets the requirements is determined by the stability coefficient WD; Whether the insulation stability state of the capacitor group meets the requirements is determined by obtaining the stability threshold WDmax through the database, and the stability coefficient WD of the capacitor group is compared with the stability threshold WDmax: if the stability coefficient WD is less than the stability threshold WDmax, it is determined that the insulation stability state of the capacitor group meets the requirements, and an insulation stability signal is generated and sent to the manager's mobile terminal through the insulation monitoring platform; if the stability coefficient WD is greater than or equal to the stability threshold WDmax, it is determined that the insulation stability state of the capacitor group does not meet the requirements, and a stability abnormality signal is generated and sent to the manager's mobile terminal through the insulation monitoring platform.

2. A capacitor bank insulation status monitoring system according to claim 1, characterized in that: The process of obtaining the temperature standard value and the humidity standard value of the capacitor bank operating environment includes: obtaining the temperature standard range and the humidity standard range of the capacitor bank operating environment, marking the average value of the maximum value and the minimum value of the temperature standard range as the temperature standard value, and marking the average value of the maximum value and the minimum value of the humidity standard range as the humidity standard value.

3. A capacitor bank insulation status monitoring system according to claim 2, characterized in that: The specific process of conducting insulation testing on the capacitor group under the standard simulation environment includes: conducting insulation testing on the capacitor group using an AC test power supply and a DC test power supply respectively under the standard simulation environment to obtain an AC insulation value JJ and a DC insulation value ZJ, and obtaining a test coefficient CS of the capacitor group under the standard simulation environment through the formula CS=p1*JJ+p2*ZJ, wherein p1 and p2 are both proportional coefficients, and p1>p2>1.

4. A capacitor bank insulation status monitoring system according to claim 3, characterized in that: It is determined whether the insulation state of the capacitor group under the standard simulation environment meets the requirements. The specific process includes: obtaining the test threshold CSmin of the capacitor group under the standard simulation environment through the database, and comparing the test coefficient CS of the capacitor group under the standard simulation environment with the test threshold CSmin: if the test coefficient CS is less than the test threshold CSmin, it is determined that the insulation state of the capacitor group does not meet the requirements, and an insulation abnormality signal is generated and sent to the mobile phone terminal of the manager through the insulation monitoring platform; if the test coefficient CS is greater than or equal to the test threshold CSmin, it is determined that the insulation state of the capacitor group under the standard simulation environment meets the requirements, and an environmental debugging signal is generated and sent to the environmental debugging module through the insulation monitoring platform.

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