TY  - SER
AU  - Xia, Chengjun
AU  - li, Chengxiang
AU  - Lan, Haiwen
AU  - Du, Zhaobin
TI  - Frequency Regulation Strategy Based on Variable-Parameter Frequency limit Control During Black Start
KW  - High-Voltage Direct Current (Hvdc) System
KW  - Power System
KW  - Rectifier
ER  -