Electric Power Research Institute, China Southern Power Grid

China Southern Power Grid

Qingming Xin

Yan Li

Hong Rao

Jun Chen

Shukai Xu

Shuangfei Yang

Junjie Feng

Weiwei Li

Xiaobin Zhao

Changyue Zou

Method for determining parameter of a passive impedance adapter applicable to VSC-HVDC, including: S. obtaining VSC-HVDC impedance and VSC-HVDC impedance curve X(f) based on VSC-HVDC impedance; S. estimating upper limit value of the main capacitor in the passive impedance adapter; S. calculating adapter parameter curve X(f); S. determining value of the main capacitor and varying value of the main resistor until min[X(f)−X(f)] is maximized; determining whether min[X(f)−X(f)]>k holds; S. If min[X(f)−X(f)]>k does not hold, increasing the value of the main capacitor and performing steps S-Suntil min[X(f)−X(f)]>k holds when the value of the main capacitor is within the range of the value of the main capacitor, storing the parameters in an available parameter set; S. reducing the value of the main capacitor, and storing the parameters when min[X(f)−X(f)]>k holds in the available parameter set; S. selecting the available parameters from the available parameter set.

Method and device for determining parameter of passive impedance adapter applicable to VSC-HVDC

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Guangzhou, China

Qingming Xin