基于电压源换流器型直流输电分区联络线的黑启动方案

A Black Start Scheme Based on VSC-HVDC Tie Line

提出了基于电压源换流器型直流输电(High Voltage Direct Current Based on Voltage Source Converters,VSC-HVDC)线路作为分区联络线的黑启动方案,对区域电网实施软启动和恢复过程进行了研究.VSC-HVDC良好的电压、频率控制特性使得黑启动过程快速且平稳,不发生涌流和暂态过电压.通过PSCAD软件进行了仿真试验及数据分析,验证了所提出的基于VSC-HVDC分区联络线黑启动方案的可行性.

A black start scheme based on voltage source converter-based HVDC（high voltage direct current）（VSC-HVDC） tie line was proposed.The ability of VSC-HVDC to softly energize major power system equipment is proved through simulation by PSCAD software.The voltage and frequency control ability of VSC-HVDC can ensure the process of restoration of the black system to be smoothly without inrush current and transient over voltage.The simulation results indicate that VSC-HVDC tie line is ideal to import black start power by using soft energizing control strategy and the proposed scheme of black start is feasible.