电压跌落激起的双馈型风力发电机电磁过渡过程  

Electro-magnetic Transition of Doubly Fed Wind Turbines Initiated by Voltage Dip

作　　者：杨淑英[1] 张兴[1] 张崇巍[1] 谢震[1] 曹仁贤[2] 

机构地区：[1]合肥工业大学电气与自动化工程学院,安徽省合肥市230009 [2]合肥阳光电源有限公司,安徽省合肥市230088

出　　处：《电力系统自动化》2008年第19期85-91,共7页Automation of Electric Power Systems

基　　金：国家科技支撑计划项目(2006BAA01A18)~~

摘　　要：为了提高双馈电机及其驱动控制系统对电网电压跌落的适应能力,实现双馈型风力发电机的低电压穿越功能,从双馈电机的特性方程着手,深入研究了电网电压跌落所激起的双馈电机电磁过渡过程产生的机理、特性及其与双馈电机运行状态之间的关系。对电网电压跌落所激起的双馈电机电磁过渡过程进行了定量和定性分析,对双馈电机电磁过渡过程的定量分析清晰地表明了过渡过程中双馈电机内部各电、磁量的变化规律及其所受双馈电机运行状态的影响,而对电磁过渡过程的定性分析进一步揭示了电磁过渡过程产生的机理。To enhance the ability of doubly fed induction generator （DFIG） and its driving control system to be immune to power grid voltage dip, and to realize the low voltage ride-through （LVRT） function of DFIG-based wind turbines, this paper studies deeply the essence, characteristics and the relationship with DFIG operation state of the electric-magnetic transition, on the basis of the algebraic equations of DFIG. The transition, initiated by voltage dip, is researched quantitatively and qualitatively. Through the quantitative research, the rules of the electro-magnetic variation and the effect of the operation state of DFIG during the transition is shown clearly; and through the qualitative research, the property and the mechanism of the electro- magnetic transition are further discovered.

关 键 词：双馈型风力发电机 电网电压跌落 电磁过渡过程 低电压穿越 

分 类 号：TM315[电气工程—电机]