基于PSCAD的CIGRE HVDC模型控制系统研究

The research on the control system of CIGRE HVDC model based on PSCAD

高压直流输电系统稳定运行的关键是整流侧的控制特性与逆变侧的控制特性能够协调配合.针对PSCAD中CIGRE的HVDC模型的控制系统做具体分析,研究不同控制特性在模型里面的应用,并在逆变侧设置短路故障,研究在故障时和故障结束后整流侧和逆变侧控制特性的变化,根据故障前后电流电压波形,验证控制系统维持稳定运行能力.

HVDC transmission system is highly controllable and its effective operating mechanism depends on the correct application of controllability.The key point on stable operation of HVDC system is the right application of coordination between rectifier side and inverter side.This paper makes a specific analysis on the control system existing in CIGRE HVDC model of PSCAD and sets a short-circuit fault in the inverter side in order to make waveform analysis to verify the stability of control system.