摘要
采用同步旋转坐标系下的八阶双馈感应风电机组动态模型,在PSCAD/EMTDC平台上,建立了计及撬杠保护特性的双馈感应风电机组电磁暂态仿真模型,其中撬杠保护定值是由短路试验结果分析识别而得,对不同程度电网电压跌落时,某实际双馈感应风电机组联网运行动态过程进行了详尽地仿真分析,揭示了风电机组电磁暂态过程特性;对风电机组联网运行短路试验进行仿真重现,仿真波形与实测波形相吻合,验证了所建模型的有效性和分析结果的正确性。
Based on an 8th-order model of doubly-fed induction generator wind turbine （DFIG-WT） system under synchronous rotating reference frame, the simulation system considered crowbar protection is implemented under PSCAD/EMTDC,and the activated current value is identified from the field test results. The response of DFIG-WT system to grid voltage sags to different extent is simulated in details and the electro-magnetic dynamics of DFIG during grid voltage sags is demonstrated. Moreover, the simulation of field test of grid-connected DFIG is conducted and the simulation results are identified with the field test results, which indicates the validity of the established simulation model and the correctness of the analysis results.
出处
《电力系统及其自动化学报》
CSCD
北大核心
2009年第3期90-96,120,共8页
Proceedings of the CSU-EPSA
关键词
双馈感应发电机
动态模型
电压跌落
短路试验
仿真
doubly-fed induction generator
dynamic model
voltage sag
short circuit tests
simulation
