Study on Restraining DC Neutral Current of Transformer During HVDC Monopolar Operation

  title={Study on Restraining DC Neutral Current of Transformer During HVDC Monopolar Operation},
  author={Rong Zeng and Zhanqing Yu and Jinliang He and Bo Zhang and Ben Niu},
  journal={IEEE Transactions on Power Delivery},
HVDC transmission system operating in ground return mode often affects the neighboring ac power system seriously. This paper presented some field experimental results, including audible noise, voltage harmonics, and oscillation of the transformer while dc current passes through the neutral point. The relationship between the dc neutral current and those effects were discovered clearly by analyzing these data. Based on the analysis of the characteristics of the dc current distributed under… CONTINUE READING


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