摘要
特高压直流工程中广泛应用的LCC-HVDC直流输电系统,其稳态电压是电力系统调度运行的重要控制对象,目前换流站无功补偿与电压控制主要通过无功补偿设备投切实现。通过对换流站无功补偿设备和无功电压控制策略分析,指出当前换流站在实际运行中无功控制参数、低压无功补偿设备控制、同步调相机稳态电压支撑上存在的不足,针对性地提出了3项LCC-HVDC换流站无功电压控制优化措施,有效拓展了换流站稳态电压控制手段。
The steady voltage of LCC-HVDC transmission system,which is widely used in ultra high voltage DC project,is the important control object of power system dispatching operation.At present,the reactive power compensation and voltage control of converter station are mainly achieved by switching of reactive power compensation equipment.Through the control strategy analysis of reactive power compensation equipment and reactive voltage of the converter station,such shortcomings of the presently operated converter station as reactive control parameters,control of low voltage reactive power compensation equipment and the stable voltage support of synchronous condensers are pointed out.Three reactive voltage control optimization measures for LCC-HVDC converter station are specifically proposed and steady voltage control methods of LCC-HVDC converter station is effectively expanded.
作者
王秋楠
晋宏杨
刘东
陕华平
WANG Qiunan;JIN Hongyang;LIU Dong;SHAN Huaping(State Grid Corporation of China,Power Dispatching and Controlling Center,Beijing 100031,China)
出处
《电力电容器与无功补偿》
2023年第2期10-17,共8页
Power Capacitor & Reactive Power Compensation
关键词
LCC-HVDC换流站
无功补偿设备
无功电压控制
LCC-HVDC converter station
reactive power compensation equipment
reactive power and voltage control
