电磁混合式消弧线圈的全补偿故障消弧原理及其柔性控制策略

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Abstract As nonlinear loads largely increases and much more power electronic devices being used, harmonics and active component increases a lot in the grounding fault current. After compensating the reactive current, residual current is enough to maintain the arc, which may cause overvoltage and fault continue to develop. This paper proposes an electromagnetic hybrid petersen coil(EHPC) based on magnetically controllable reactor(MCR) and active power compensator(APC), expounds it’s two operating statuses and principle, analyses the factors of influence of frequency scanning to ground capacitor and proposes an improving method. We also discuss the relationship of neutral displacement voltage, fault phase voltage, zero sequence current and grounding fault current, put forward a decoupling compensating and flexible control strategy pointing at the active, reactive and harmonic component of grounding fault current. Simulations and experiments verify that grounding fault current can be fully compensated fast and effectively, meeting both the requirement of current and voltage, suggesting the correctness and feasibility of the principle and the control strategy.

Key words： Magnetically controllable reactor active power compensator arc suppression full compensation flexible control

Received: 23 August 2014 Published: 29 June 2015

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TM77

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	Articles by authors
	Wang Peng
	Chen Baichao
	Shen Weiwei
	Tian Cuihua
	Wei Liangliang
	Tu Zhikang

Cite this article:

Wang Peng,Chen Baichao,Shen Weiwei等. The Principle of Full Compensation Arc Suppression and Flexible Control of Electromagnetic Hybrid Petersen Coil[J]. Transactions of China Electrotechnical Society, 2015, 30(10): 311-318.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2015/V30/I10/311

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