矩阵式变换器励磁的双馈发电机系统建模与仿真

Modeling and Simulation of the Doubly Fed Generatorwith the Matrix AC-AC Converter as an Exciter

从交 直 交变换的空间矢量调制方法综合出矩阵式交 交变换器的开关控制规律 ,建立了矩阵式交 交变换器的仿真模型 ;根据双馈发电机的数学模型和基于动态同步轴系的双通道多变量反馈励磁控制策略建立了双馈发电机的仿真模型和励磁控制模型 ,结合矩阵式交 交变换器的仿真模型构成双馈发电机系统的仿真模型 ;仿真研究了双馈发电机系统的稳态调节特性和暂态特性 ;仿真研究了双馈发电机感应电势及定。

According to the space vector modulation method of the AC DC AC converter,the switch control scheme of the matrix AC AC converter is deduced,and the model of a three phase matrix AC AC converter is constructed. According to the mathematic model of the doubly fed generator and the excitation control principle based on dynamical synchronous reference frame,the simulation model of the generator and excitation controller are established,then the modeling and simulation of the doubly fed generator system with the matrix AC AC converter as an exciter are implemented.The steady state and transient characteristics of the system are simulated,the harmonics of the EMF and stator?rotor current are researched.