摘要
描述了基于直流串联的风电场的结构和工作特点。讨论了直流串联型风电机组的控制策略,并分析了出口电压和电流的工作曲线。建立风电机组串联的仿真模型,研究在正常工作模式和电压限幅工作模式下各状态量的变化情况,比较机群功率输出的异同,设计了风电机组投入和切除时的控制方法,并进行了仿真验证。对接收电网出现短暂接地故障的风电机组的反应状况进行了仿真,结果显示风电机组运行正常。
Introducing the structures and principle of DC series-connected offshore wind farm, this paper makes clear the control strategy of series-type wind power turibine, and analyzes its output voltage and current locus. Modeling the series-type wind turbine, and analyzing its statuses under normal mode and voltage limitation mode, the paper compares the output powers under the two modes, and designs control methods for the quit and restart of wind turbine, and does simulation to both cases for verification. The response of wind turbine to the grid＇s grounded fault is simulated, showing that the wind turbine performs well.
出处
《南方电网技术》
2012年第6期100-104,共5页
Southern Power System Technology
关键词
海上风电场
永磁同步发电机
最佳功率跟踪
直流串联
电压限幅
offshore wind farm
permanent magnet synchronous generator
maximum power point tracking
series-connected DC
voltage limitation
