(1.College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China;2.Jiangsu Frontier Electric Technology Co., Ltd., Nanjing 211102, China )
To effectively suppress the overvoltage of HVDC receiving end system caused by the fault elimination, a coordinated control strategy of synchronous condenser and inverter side extinction angle is proposed. A reactive power regulator (QPC) is added to the conventional control system with a fixed extinction angle at the inverter side for realizing the reactive power control of the converter station by adjusting extinction angle at the inverter side, and at the same time coordinating the reactive power regulator parameters of both the synchronous condenser and the DC control system. The numerical simulation model of HVDC system with the synchronous condenser is built based on the PSCAD/EMTDC environment. The simulation results show that the coordinated control method can effectively reduce the overvoltage of HVDC receiving end system after the accident occurrence and speed up the recovery time of the AC system voltage.
王琳,王宏华,路天航,等. HVDC系统中调相机与逆变侧关断角协调控制[J].河海大学学报(自然科学版),2022,50(6):152-158.(WANG Lin, WANG Honghua, LU Tianhang, et al. Coordinated control of synchronous condenser and extinction angle of inverter side in HVDC system[J]. Journal of Hohai University (Natural Sciences),2022,50(6):152-158.(in Chinese))Copy