CN-121997698-A - Method and device for determining service life of arc extinguishing chamber, electronic equipment and storage medium

CN121997698ACN 121997698 ACN121997698 ACN 121997698ACN-121997698-A

Abstract

The invention relates to the field of equipment state monitoring, and provides a service life determining method and device of an arc extinguishing chamber, electronic equipment and a storage medium, wherein the method and device detect the opening operation of a generator breaker and acquire target operation parameters corresponding to the opening operation; the method comprises the steps of inputting target operation parameters into a pre-trained abrasion loss determination model, processing the abrasion loss determination model to obtain target contact mass loss and target nozzle ablation depth corresponding to an arc extinguishing chamber, accumulating the target contact mass loss to obtain total contact mass loss, accumulating the target nozzle ablation depth to obtain total nozzle ablation depth, and determining the residual service life of the arc extinguishing chamber according to the total contact mass loss and the total nozzle ablation depth. The present disclosure enables accurate prediction of the remaining lifetime of the arc chute.

Inventors

LAN BAI
LI SHANSHAN
Qi Yuexin
LI JIAYAO
YU PAN
CAO TANTAN
ZHOU YUAN
ZHANG QICHAO
WANG KAI
ZHANG JIKUN

Assignees

国网新源控股有限公司
国网新源控股有限公司抽水蓄能技术经济研究院

Dates

Publication Date: 20260508
Application Date: 20251205

Claims (10)

1. A method of determining a lifetime of an arc chute, comprising: Detecting a brake-separating operation of a generator breaker, and acquiring a target operation parameter corresponding to the brake-separating operation; inputting the target operation parameters into a pre-trained abrasion loss determination model, and processing the abrasion loss determination model to obtain target contact mass loss and target nozzle ablation depth corresponding to an arc extinguishing chamber, wherein the arc extinguishing chamber is a functional component in the generator circuit breaker; accumulating the target contact mass loss to obtain the total contact mass loss; accumulating the target nozzle ablation depth to obtain the total nozzle ablation depth; and determining the residual service life of the arc extinguishing chamber according to the total contact mass loss and the total ablation depth of the nozzle.
2. The method of claim 1, wherein the training process of the wear determination model comprises: acquiring an initial training data set, and filtering the initial training data set to obtain a training data set, wherein the training data set comprises training operation data and actual arc voltage; acquiring an initial abrasion loss determination model, inputting the training data set into the initial abrasion loss determination model, and processing the initial abrasion loss determination model to obtain training arc voltage and training abrasion quantity values, wherein the training abrasion quantity values comprise training contact mass loss and training nozzle ablation depth; And determining a target loss function according to the training arc voltage and the actual arc voltage, and determining that the initial abrasion loss determination model is trained to obtain an abrasion loss determination model in response to convergence of the target loss function.
3. The method of claim 2, wherein filtering the initial training data set to obtain a training data set comprises: aiming at each initial training data in the initial training data set, acquiring a time stamp and the number of data points corresponding to the initial training data; Determining that the initial training data is abnormal in response to the timestamp discontinuity and/or the number of data points is less than a preset number threshold, deleting the initial training data, or In response to the time stamps being consecutive and the number of data points being greater than or equal to a preset number threshold, taking the initial training data as target training data; And counting all target training data to obtain a training data set.
4. The method of claim 1, wherein said determining the remaining lifetime of the arc chute based on the total contact mass loss and the total nozzle ablation depth comprises: Determining a target abrasion parameter and a target abrasion value from the contact mass loss and the nozzle ablation depth according to the contact mass loss total and the nozzle ablation depth total, wherein the target abrasion value is the contact mass loss total or the nozzle ablation depth total; acquiring a historical wear value corresponding to the target wear parameter in a preset time period before the opening operation, and determining a historical wear value average value according to all the historical wear values; acquiring an abrasion loss threshold value corresponding to the target abrasion loss parameter, and performing difference processing on the abrasion loss threshold value and the target abrasion loss value to obtain an abrasion loss difference value; and carrying out ratio processing on the abrasion loss difference value and the historical abrasion loss average value to obtain the residual service life of the arc extinguishing chamber.
5. The method of claim 4, wherein determining the target wear parameter and the target wear value from the contact mass loss and the jet ablation depth based on the total contact mass loss and the total jet ablation depth comprises: acquiring a mass loss threshold corresponding to the mass loss of the contact, and performing ratio processing on the total mass loss of the contact and the mass loss threshold to obtain a first loss ratio; obtaining an ablation depth threshold corresponding to the ablation depth of the nozzle, and performing ratio processing on the total ablation depth of the nozzle and the ablation depth threshold to obtain a second loss ratio; Determining the target wear parameter as the contact mass loss and the target wear value as the total contact mass loss in response to the first loss ratio being greater than or equal to the second loss ratio, or And in response to the first loss ratio being less than the second loss ratio, determining the target wear parameter as the jet ablation depth and the target wear magnitude as the total jet ablation depth.
6. The method of claim 1, further comprising, after determining a remaining lifetime of the arc chute: Acquiring a preset residual life threshold; and comparing the residual life with the residual life threshold to obtain a comparison result, and outputting target prompt information according to the comparison result.
7. The method of claim 6, wherein outputting the target hint information based on the comparison result comprises: Determining the target prompt information as a first prompt information in response to the comparison result that the residual life is smaller than or equal to a first preset life threshold value, or Determining the target prompt information as a second prompt information in response to the comparison result that the residual life is larger than a first preset life threshold and smaller than or equal to a second preset life threshold, or And determining that the target prompt information is third prompt information according to the comparison result that the residual life is larger than a second preset life threshold.
8. A lifetime determining device for an arc extinguishing chamber, comprising: The data acquisition module is configured to detect the opening operation of the generator circuit breaker and acquire target operation parameters corresponding to the opening operation; The model processing module is configured to input the target operation parameters into a pre-trained abrasion loss determination model, and obtain target contact mass loss and target nozzle ablation depth corresponding to an arc extinguishing chamber through processing of the abrasion loss determination model, wherein the arc extinguishing chamber is a functional component in the generator circuit breaker; The contact mass loss determining module is configured to accumulate the target contact mass loss to obtain the total contact mass loss; The nozzle ablation depth determining module is configured to accumulate the target nozzle ablation depth to obtain the total nozzle ablation depth; And the residual life determining module is configured to determine the residual life of the arc extinguishing chamber according to the total contact mass loss and the total nozzle ablation depth.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and running on the processor, the processor implementing the method of any one of claims 1 to 7 when executing the program.
10. A non-transitory computer readable storage medium storing computer instructions for causing a computer to perform the method of any one of claims 1 to 7.

Description

Method and device for determining service life of arc extinguishing chamber, electronic equipment and storage medium Technical Field The disclosure relates to the field of equipment state monitoring, and in particular relates to a service life determining method and device of an arc extinguishing chamber, electronic equipment and a storage medium. Background The generator circuit breaker is an indispensable core electrical device in the pumped storage power station, and the importance of the generator circuit breaker is reflected in the frequent conversion process of the operation working conditions such as power generation, pumping, frequency modulation, phase modulation and the like of the pumped storage power station. The main function of the GCB is to safely and reliably switch on and off the electrical connection between the generator and the main transformer, not only to carry the rated operating current, but more importantly to have the ability to quickly and effectively switch on and off short-circuit currents up to hundreds of kiloamperes in the event of a short-circuit fault in the system. The running reliability of the system directly determines the safety states of the generator set and the main transformer, and further directly influences the stable running of the whole pumped storage power station, and even the power supply reliability and the accident defense capability of the regional power grid are related. Because the pumped storage power station is frequently started and stopped, the operation frequency of the GCB is far higher than that of common power station switch equipment, and the arc extinguishing chamber is used as the most critical functional component in the GCB, and under the comprehensive action of factors such as heat, electricity, magnetism, force and the like, the performance of the internal component of the arc extinguishing chamber gradually deteriorates gradually. There are a number of problems with current assessment of lifetime of arc chute, resulting in inaccurate assessment of lifetime of arc chute. Disclosure of Invention In view of the above, an object of the present disclosure is to provide a method, an apparatus, an electronic device and a storage medium for determining a lifetime of an arc extinguishing chamber, which are used for solving or partially solving the above-mentioned problems. Based on the above object, a first aspect of the present disclosure provides a lifetime determining method of an arc extinguishing chamber, including: Detecting a brake-separating operation of a generator breaker, and acquiring a target operation parameter corresponding to the brake-separating operation; inputting the target operation parameters into a pre-trained abrasion loss determination model, and processing the abrasion loss determination model to obtain target contact mass loss and target nozzle ablation depth corresponding to an arc extinguishing chamber, wherein the arc extinguishing chamber is a functional component in the generator circuit breaker; accumulating the target contact mass loss to obtain the total contact mass loss; accumulating the target nozzle ablation depth to obtain the total nozzle ablation depth; and determining the residual service life of the arc extinguishing chamber according to the total contact mass loss and the total ablation depth of the nozzle. Based on the same inventive concept, a second aspect of the present disclosure proposes a lifetime determining device of an arc extinguishing chamber, comprising: The data acquisition module is configured to detect the opening operation of the generator circuit breaker and acquire target operation parameters corresponding to the opening operation; The model processing module is configured to input the target operation parameters into a pre-trained abrasion loss determination model, and obtain target contact mass loss and target nozzle ablation depth corresponding to an arc extinguishing chamber through processing of the abrasion loss determination model, wherein the arc extinguishing chamber is a functional component in the generator circuit breaker; The contact mass loss determining module is configured to accumulate the target contact mass loss to obtain the total contact mass loss; The nozzle ablation depth determining module is configured to accumulate the target nozzle ablation depth to obtain the total nozzle ablation depth; And the residual life determining module is configured to determine the residual life of the arc extinguishing chamber according to the total contact mass loss and the total nozzle ablation depth. Based on the same inventive concept, a third aspect of the present disclosure proposes an electronic device comprising a memory, a processor and a computer program stored on the memory and executable by the processor, the processor implementing the method as described above when executing the computer program. Based on the same inventive concept, a fourth aspect of the present di