Electrical Engineering  2018, Vol. 19 Issue (4): 112-115    DOI:
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The fault analysis of current sampling circuit in Zhoushan multi-terminal flexible HVDC system
Liu Li, Dai Tao, Li Jianbo, Yuan Jie
Zhoushan Electric Power Company, State Grid Zhejiang Electric Power Company, Zhoushan, Zhejiang 316000

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Abstract  This paper introduces the general information of Zhoushan multi-terminal Flexible HVDC system firstly. In addition, DC line differential protection trip reason is analyzed in detail. Then the reason and processing methods of current sampling circuit are given. Additionally, the MU-unit function is improved.
Key words： multi-terminal      flexible HVDC      trip      current sampling circuit     
Received: 26 September 2017      Published: 18 April 2018
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Liu Li
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Liu Li,Dai Tao,Li Jianbo等. The fault analysis of current sampling circuit in Zhoushan multi-terminal flexible HVDC system[J]. Electrical Engineering, 2018, 19(4): 112-115.
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https://dqjs.cesmedia.cn/EN/Y2018/V19/I4/112
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