双馈发电机并网后功率控制策略研究  

Research on Grid-connection Power Control Strategy for Doubly-Fed Generator

作　　者：李艳秀[1] 黄琦兰[1] 王宇[2] 车延博[2] 

机构地区：[1]天津工业大学电气工程与自动化学院,天津300160 [2]天津大学电气与自动化工程学院,天津300072

出　　处：《科技广场》2009年第11期188-191,共4页Science Mosaic

摘　　要：风能作为一种可再生的清洁能源日益受到世界各国的广泛关注。在风力发电系统中,双馈发电机并网后的控制策略研究是当前国内外广泛研究的课题。本文首先介绍了双馈风力发电系统的基本理论,并建立了双馈电机在两相旋转坐标系下的数学模型。再次,介绍了双馈发电机的定子磁链定向矢量控制策略,并在该控制策略的基础上,提出了电流内环、功率外环的双通道双闭环控制方法。最后,在Matlab/Simulink环境下对该控制方法进行了验证,仿真波形证明该控制方法能够较好地实现双馈发电系统有功功率和无功功率的解耦。Wind power is attracting more attention from countries around the world as a kind of clean and renewable energy. In wind power generation system, grid-connection power control strategy for doubly-fed generator is a widely studied subject all over the world. The basic theory of doubly-fed wind power generation system is introduced in the paper at first and the mathematical model of doubly-fed generator in dq coordinate is set up. Then stator-flux-oriented vector control strategy for doubly-fed generator is explained. Based on this, dual channel and dual closed-loop control scheme including current inner loop and power outer loop is proposed. At last the simulation model is established in Matlab/Simulink and the simulation result has proved the validity of the proposed control scheme to decouple the active and reactive power.

关 键 词：风力发电 定子磁链定向矢量控制 双通道双闭环 

分 类 号：TM614[电气工程—电力系统及自动化]