基于负序电压前馈的改进型柔性直流输电系统有功功率控制策略

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Abstract Voltage source converter based high voltage direct current transmission(VSC-HVDC) technology is widely used in DC transmission applications due to its unique performance advantages. In case of the negative sequence voltage component in the AC side of the VSC-HVDC system during the fault, an improved active power control strategy based on negative sequence voltage feedforward is proposed to suppress the DC voltage fluctuation and filter out the negative sequence current component flowing through the smoothing reactor in order to enhance the anti-instability ability of the system. The simulation results show that the improved active power control strategy can suppress the DC voltage fluctuation and reduce the impact on AC power grid under fault.

Key words： voltage source converter based high voltage direct current transmission (VSC-HVDC) negative sequence voltage fault control

Received: 08 March 2021

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	Articles by authors
	SHEN Zhouli
	LI Ruihua
	HU Bo

Cite this article:

SHEN Zhouli,LI Ruihua,HU Bo. Improved active power control strategy of voltage source converter based high voltage direct current transmission system based on negative sequence voltage feedforward[J]. Electrical Engineering, 2021, 22(11): 1-6.

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https://dqjs.cesmedia.cn/EN/Y2021/V22/I11/1

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