On-line virtual fault injection-based life-cycle reliability detection model for relay protection devices

Shaolin Jiao; Wei Liu; Tao Wen; Jia Zhu

doi:10.1117/12.2679551

18 July 2023 On-line virtual fault injection-based life-cycle reliability detection model for relay protection devices

Shaolin Jiao, Wei Liu, Tao Wen, Jia Zhu

Proceedings Volume 12722, Third International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2023); 127222H (2023) https://doi.org/10.1117/12.2679551
Event: International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2023), 2023, Hangzhou, China

Abstract

In order to improve the accuracy and timeliness of the detection results, a design method of online virtual fault injection based full-life cycle reliability detection model for relay protection devices is proposed. The failure rate function and reliability function of the relay protection device are calculated. According to the calculation results, the basic properties of the relay protection device and the operation characteristics of the relay protection system are analyzed. The reliability parameters of the relay protection device are estimated using the three-parameter Weibull distribution model. The reliability of the relay protection device is tested. After the fault injection is randomly simulated, the reliability is studied. The MARKOV algorithm is used to calculate the reliability state parameters of the relay protection device. Based on the reliability state parameters obtained, the reliability detection matrix is established to complete the reliability detection of the large relay protection device. The experimental results show that the difference between the detection results of this method and the actual results is small, and the real-time detection is strong, which verifies the application value of this method.

Citation Download Citation

Shaolin Jiao, Wei Liu, Tao Wen, and Jia Zhu "On-line virtual fault injection-based life-cycle reliability detection model for relay protection devices", Proc. SPIE 12722, Third International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2023), 127222H (18 July 2023); https://doi.org/10.1117/12.2679551

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