Improved active power control strategy of voltage source converter based high voltage direct current transmission system based on negative sequence voltage feedforward
SHEN Zhouli, LI Ruihua, HU Bo
Department of Electrical Engineering, Tongji University, Shanghai 201804
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.
沈周丽, 李锐华, 胡波. 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[J]. 电气技术, 2021, 22(11): 1-6.
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. Electrical Engineering, 2021, 22(11): 1-6.
2021, Vol. 22 
