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タイトル
和文: 
英文:Continuous Operation of Wind Power Plants under Pole-to-Ground Fault in an HVDC System Consisting of Half-Bridge MMCs and Disconnecting Switches 
著者
和文: 榎本光芳, 佐野憲一朗, 菅野純弥, 福嶋純一.  
英文: Mitsuyoshi Enomoto, Kenichiro Sano, Junya Kanno, Junichi Fukushima.  
言語 English 
掲載誌/書名
和文: 
英文:IEEE Transactions on Power Electronics 
巻, 号, ページ vol. 38    no. 3    pp. 3812 - 3823
出版年月 2023年3月 
出版者
和文: 
英文:IEEE 
会議名称
和文: 
英文: 
開催地
和文: 
英文: 
公式リンク https://doi.org/10.1109/TPEL.2022.3225209
 
DOI https://doi.org/10.1109/TPEL.2022.3225209
アブストラクト This paper focuses on a multi-circuit HVDC system which can localize the DC line fault without DC circuit breakers. The conventional fault clearing method causes the shutdown and the restart of the wind power plants, which results in the suspension of the power supply. The suspension may affect the balance of supply and demand, and may cause frequency drop in the onshore AC power system. To solve the problem, this paper proposes a system switching method to enable the continuous operation of the wind power plants under the DC line fault. The proposed method utilizes the half-bridge modular multilevel converter (HB-MMC) to clear the fault while keeping the wind power plants operating. As a result, the proposed method realizes the continuous operation of wind power plants and shorten the transmission outage to 0.2 s. Thus, it greatly increases the supply reliability. Experimental results demonstrate the validity of the proposed method.

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