风电场动静态无功补偿协调控制策略  

Study on Coordinated Control Strategy of Dynamic and Static Reactive Compensation in Wind Farm

作　　者：陈惠粉[1] 乔颖[1] 闵勇[1] 张毅威[1] 

机构地区：[1]电力系统及发电设备控制和仿真国家重点实验室(清华大学电机系),北京市海淀区100084

出　　处：《电网技术》2013年第1期248-254,共7页Power System Technology

摘　　要：现有从单个时间断面、单一类型的无功补偿手段出发的风电场电压控制策略难以适应风电多时间尺度上的波动。风电场有丰富的无功源,综合协调多种动、静态无功补偿设备的调节特性是保证控制策略始终具有较好效果的关键。文章引入预测,建立风电场"计划+在线+紧急"多层动静态电压协调控制模型,利用大容量静态调节设备对风电场的无功电压进行大幅调节;利用动态调节设备补偿小幅波动,并在暂态过程中提供电压支撑。通过对不同时间尺度的风电场进行经济性与安全性的优化,实现各类无功补偿的协调控制。仿真结果验证了上述控制策略的有效性与优越性。The voltage control of wind farm is studied from a single cross-section, a＇ single type of reactive power compensation means in the existing studies. However, the control strategy cannot meet the control need caused by the multi-time scale wind power fluctuation. Wind farm is rich in reactive power sources, and the key to ensure the perfect control effect all the time is how to match the dynamic characteristics of a variety of dynamic/static reactive power compensation equipment and the time constants. Prediction information is introduced and the dynamic/static coordinated control model-＂program＋online＋urgent＂-is established in this paper. Large capacity static compensator is used for the substantial adjustment of reactive power and voltage in the wind farm, and dynamic equipment is used for the small fluctuations and provides transient voltage support. Through wind farm＇s economy and safety optimization in the different time scales, the coordination of various types of reactive power compensation is achieved. The feasibility of this proposed control strategy, effectiveness and superiority. Simulation results are verified with the simulation.

关 键 词：风电场 无功电压 经济性 安全性 多时间尺度 

分 类 号：TM614[电气工程—电力系统及自动化]