PSCAD/EMTDC环境下双馈风力发电机组的建模与仿真  

Modeling and simulation of doubly fed induction generators using PSCAD/EMTDC

作　　者：王金行 赵生传 王泽众[2] 刘远龙 龚文杰 李文升 

机构地区：[1]青岛供电公司,山东青岛266000 [2]华北电力大学电气工程学院,北京102206

出　　处：《可再生能源》2012年第3期22-26,共5页Renewable Energy Resources

摘　　要：介绍了一种在PSCAD/EMTDC环境中建立双馈风电机组模型以用于电磁暂态分析的方法。分析了风力机风速与输出转矩的关系,建立了机侧换流器的定子磁链定向矢量控制模型、网侧换流器的电网电压定向矢量控制模型,并考虑了低电压穿越控制策略。最后在PSCAD/EMTDC环境中建立了双馈风电机组的模型,仿真验证了建模方法的有效性和正确性。仿真结果表明,在PSCAD/EMTDC环境中,双馈风机建模方法能够准确地描述风电机组的电磁暂态特性。This paper outlines a method of modeling doubly-fed induction generators using PSCAD/ EMTDC for electromagnetic transient study. First, relationship between wind velocity and output torque of wind turbines is analyzed; then, stator-flux-oriented vector control of machine-side voltage source converter are modeled, so are the grid-voltage-oriented vector control of grid-side voltage source converter; low voltage ride-through method is given too. Finally, model of doubly-fed wind turbine generator is established in PSCAD/EMTDC and. The simulation which is undertakesn to validate the modeling method. Results shows that the proposed method of modeling DFIG using PSCAD/EMTDC can accurately describe electromagnetic transient characteristics of wind generators.

关 键 词：双馈风力发电机 PSCAD建模 矢量控制 电磁暂态分析 

分 类 号：TK81[动力工程及工程热物理—流体机械及工程]