贵广第二回直流输电工程换流站无功补偿的研究

Study on Reactive Power Compensation for the Secondary HVDC Project from Guizhou to Guangdong

换流站无功补偿的研究是高压直流系统设计的重要组成部分,针对正在建设的南方电网贵广第二回±500 kV/ 3 000 MW直流输电工程,根据高压直流稳态模型,按照相应的计算原则计算了不同运行方式下的换流站无功消耗,提出了两端换流站的无功补偿设备总容量及其分组配置方案。换流站无功分组投切的仿真结果验证了配置方案的技术可行性。主要研究成果已应用于工程的设备制造中。

The research on reactive power compensation of converter station is an important component in the design of HVDC project. For the secondary ±500 kV/3000 MW Guizhou- Guangdong HVDC transmission project being built in South China power grid, based on HVDC steady-state model and according to corresponding calculation principle the reactive power consumption of converter station under various operating modes is calculated, and total capacity of reactive power compensation devices of converter stations at both terminals and the configuration scheme for these devices which are divided into groups are proposed. The feasibility of the proposed configuration scheme is verified by simulation results of switching grouped compensation devices in converter station. Main results of this research item are applied in the manufacturing of compensation devices for the secondary ±500kV/3000MW HVDC transmission project.