ZHU Zhiwei, SHI Huige, TIAN Huimin and et al. Reliability evaluation of on-load tap-changer based on multi-state multi-valued decision diagram[J]. Journal of Light Industry, 2021, 36(4): 118-124. doi: 10.12187/2021.04.015
Citation:
ZHU Zhiwei, SHI Huige, TIAN Huimin and et al. Reliability evaluation of on-load tap-changer based on multi-state multi-valued decision diagram[J]. Journal of Light Industry, 2021, 36(4): 118-124.
doi:
10.12187/2021.04.015
Reliability evaluation of on-load tap-changer based on multi-state multi-valued decision diagram
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1. School of Electrical Engineering, Zhengzhou University, Zhengzhou 450001, China;
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2. Nanyang Power Supply Company, He'nan Electric Power Company of State Grid, Zhengzhou 450052, China;
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3. Electric Power Research Institute, He'nan Electric Power Company of State Grid, Zhengzhou 450052, China
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Received Date:
2020-07-23
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Abstract
The Aiming at the problems of large number of bottom events and component polymorphism in the current reliability analysis method of the on-load tap-changer is significantly important for the stability of the transformer and even electrical power system. In this paper, the reliability was evaluated by using the multi-state multi-valued decision diagram (MMDD). First, the reliability evaluation model was built based on the induction and classification of the fault modes of the on-load tap-changer. Second, the of the system reliability is qualitatively andwas quantitatively analyzed by using the multi-state decision graphMMDD. Finally, the reliability of each fault condition of the tap-changer was evaluated under the probability importance of each component. An evaluation Example analysis results showed that the MMDD had the advantages of investigation, deduction, calculation and explanation of the system faults. Further, and the relationship between fault term and system reliability could be obtained.
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