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Volume 55 Issue 6
Dec.  2020
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Article Contents
Journal of Southwest Jiaotong University  > 2020  >  55(6): 1155-1162.
LIN Sheng, CUI Zhen, YANG Qianqian, FENG Ding, ZANG Tianlei. Reliability Evaluation Method for Metro Medium-Voltage Ring-Network Power Supply System[J]. Journal of Southwest Jiaotong University, 2020, 55(6): 1155-1162. doi: 10.3969/j.issn.0258-2724.20190812
Citation: LIN Sheng, CUI Zhen, YANG Qianqian, FENG Ding, ZANG Tianlei. Reliability Evaluation Method for Metro Medium-Voltage Ring-Network Power Supply System[J]. Journal of Southwest Jiaotong University, 2020, 55(6): 1155-1162. doi: 10.3969/j.issn.0258-2724.20190812
shu

Reliability Evaluation Method for Metro Medium-Voltage Ring-Network Power Supply System

doi: 10.3969/j.issn.0258-2724.20190812
  • Received Date: 26 Aug 2019
  • Rev Recd Date: 09 Feb 2020
    • Available Online: 28 Jul 2020
  • Publish Date: 15 Dec 2020
    Abstract
  • Metro medium-voltage ring-network power supply system has a complex structure and various devices, which plays a crucial role in the distribution and transmission of electric energy. The analysis of metro medium-voltage ring network supply system is of great significance. In the analysis of its network structure and operation mode, the idea of partitioning is adopted to deal with the medium-voltage ring-network power supply system in a regional and module manner. Thus, the complex system is simplified and the concept of the minimum basic unit is proposed. A universal model is established for system reliability assessment and sequential Monte Carlo method is used to calculate system reliability evaluation indexes. The case study shows that, if the wear of the system equipment is ignored, with the sampling number of 50 000, the steady-state availability of the power supply system for ametro medium-voltage ring network is 99.996%, which verifies the feasibility of the universal model.

     

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