Fatigue Life Estimation of Critical Components in a Motor-Energized Spring Operating Mechanism Based on Theory of Reliability-Reference-Cited by-同舟云学术

Fatigue Life Estimation of Critical Components in a Motor-Energized Spring Operating Mechanism Based on Theory of Reliability

Published:2024-03-28 Issue:7 Volume:17 Page:1623
ISSN:1996-1073
Container-title:Energies
language:en
Short-container-title:Energies

Author:

Ma Hongming¹,Qian Guochao¹,Zhang Jie²,Chen Jiali²,Zhou Fusheng²,Qiu Pengfeng¹,Zhang Aohua³^ORCID,Wang Ting⁴,Yao Xiaofei³^ORCID,Liu Zhiyuan³

Affiliation:

1. Electric Power Research Institute, Yunnan Power Grid Co., Ltd., Kunming 650032, China

2. China Southern Power Grid Research Institute, Guangzhou 510663, China

3. State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, China

4. Xi’an High Voltage Appararus Research Institute Co., Ltd., Xi’an 710077, China

Abstract

High-voltage switchgear is a key control and protection unit in power systems. The reliable operation of the operating mechanism is essential for the reliable opening and closing of the switchgear. This is a vital guarantee for the safety and stability of the power systems. The spring operating mechanism is a commonly used actuator for circuit breakers at 12–252 kV. However, a reliability estimation method that is convenient, practical and accurate is still lacking. The aim of this paper is to explore a reliability estimation method based on a stress–strength interference reliability theory and a fatigue life theory. The changing rules of the reliability of the main axis, and the closing pawl and opening pawl in the spring operating mechanism during operations, are achieved. The accuracy of the calculated reliability based on theories of stress–strength interference and fatigue life is verified by adopting a test data statistical reliability model based on Weibull distribution. The results show that the reliability estimation method based on stress–strength interference and fatigue life theories has a high degree of confidence. The maximum tolerance is 0.024. The study would help in providing a useful reference for the optimization and durability estimation of a spring operating mechanism and its key components in high-voltage circuit breakers.

Funder

State Key Laboratory of Electrical Insulation and Power Equipment

National Natural Science Foundation of China

Publisher

MDPI AG

Link

https://www.mdpi.com/1996-1073/17/7/1623/pdf

Reference18 articles.

1. Oehmen, J., and Kwakkel, J. (2022). Handbook of Engineering Systems Design, Springer International Publishing.

2. Lipirodjanapong, S., and Suwanasri, C. (2016, January 25–28). The reliability evaluation of configuration of bus arrangement in substations by the variable failure rate of power circuit breaker under time-based maintenance. Proceedings of the 2016 International Conference on Condition Monitoring and Diagnosis (CMD), Xi’an, China.

3. Dong, J., and Koval, D.O. (2004, January 1–6). Impact of circuit breaker failure modes on the reliability of the gold book standard network. Proceedings of the 2004 IEEE Industrial and Commercial Power Systems Technical, Clearwater Beach, FL, USA.

4. Accelerated life testing for reliability improvement: A case study on Moulded Case Circuit Breaker (MCCB) mechanism;Rane;Int. J. Syst. Assur. Eng. Manag.,2019

5. Vasudevan, H., Kottur, V., and Raina, A. (2020). Proceedings of International Conference on Intelligent Manufacturing and Automation, Springer. Lecture Notes in Mechanical Engineering.