双馈风力发电机建模及谐波分析

为了研究双馈风力发电机接入系统并进行谐波分析,建立了双馈风力发电机的整体动态数学模型,包括风力机、双馈发电机以及控制系统。将Matlab软件作为仿真工具,以数学模型为基础搭建了适用于谐波分析的DFIG模型,并采用快速傅里叶变换(FFT)对仿真数据进行谐波分析,结果表明,双馈风力发电机接入系统运行能够满足国家谐波标准。

Modeling of Double-Fed Induction Generator and Harmonic Analysis

In order to research the affect of harmonics when double-fed induction generator connected to the power system,a whole dynamic model for double-fed induction generator is pres- ented,including wind-turbine,double-fed generator and control system on the generator.The model of DFIG was constructed in Matlab/Simulink,which can be used to research harmonics, then adopted FFT to analyze the data derived from the simula- tion.The result shows that the established model is correct and when DFIG is connected to the power system it can meet the har- monic standard.