Hunan Electric Power ›› 2022, Vol. 42 ›› Issue (4): 90-94.doi: 10.3969/j.issn.1008-0198.2022.04.018

• Experience and Discussion • Previous Articles     Next Articles

Research on Reliability Improvement of Automatic Switching Logic of Station Power Supply System in Converter Station

WANG Yingkun1,2, LIU Shunyi1,2, HUANG Chen1,2, LI Qianru1,2, YANG Jiangtao1,2   

  1. 1. State Grid Hunan Electric Power Company Limited Extra High Voltage Substation Company, Changsha 410004, China;
    2. Substation Intelligent Operation and Inspection Laboratory of State Grid Hunan Electric Power Company Limited,Changsha 410004, China
  • Received:2022-03-01 Revised:2022-05-23 Online:2022-08-25 Published:2022-10-14

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Abstract: The station power supply system of ±800 kV ultra-high voltage Shaoshan converter station is taken as an example in this paper.The composition of the whole station power supply system and the automatic switching logic of 10 kV and 400V power supply are introduced. In view of the problems existing in the automatic switching logic of 10 kV and 400 V power supply, scientific and reasonable suggestions are introduced to improve the reliability of the DC transmission system.

Key words: converter station, station power supply system, stand-by surrender, reliability enhancement

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