双馈风电机组的建模仿真及其等值方法研究  

Modeling and simulation of DFIG and a research on its equivalent method

作　　者：李智才[1] 李凤婷[1] 

机构地区：[1]新疆大学电气工程学院,新疆乌鲁木齐830047

出　　处：《可再生能源》2013年第3期31-35,共5页Renewable Energy Resources

基　　金：国家自然科学基金资助项目(50967004)

摘　　要：文章分析了双馈风力发电机组的数学模型及控制模型,基于PSCAD/EMTDC平台搭建了双馈风力发电机组仿真模型,以阵风和渐变风为例,对风力发电机组并网运行端口的稳态特性和故障特性进行仿真,其结果实现定子侧有功、无功解耦控制及电压的恒定,验证了所建模型的正确性。在考虑尾流效应的情况下,研究了不同类型的双馈风电机组等值思路,搭建了等值模型,对其等值前后的稳态、暂态特性进行对比分析,结果表明了该等值方法的有效性,为大规模并网型双馈机组风电场进一步研究提供了有利条件。The mathematical model and control model of a double-fed wind turbine are analyzed. A single double-fed wind turbine simulation model is built based on PSCAD/EMTDC platform. Setting gust and gradient wind as examples ,the steady-state characteristics and failure characteristics of the wind turbine linked to grid are simulated, the result shows the stator active and reactive decoupling control is achieved and vohage is constant,the correctness of the model is verified. The equivalent method of different types double-fed wind turbine is studied in the case of considering effect of the wake, then an equivalent model is built and the analyses of steady state and transient characteristics are compared before and after making equivalence. The result shows the validity of the equivalent methods, and provide favourable condition for further research of large-scale grid-connected wind farm.

关 键 词：双馈风力发电机组 风电场 建模 等值 

分 类 号：TK515[动力工程及工程热物理—热能工程]