摘要
双馈异步电机运行控制的核心就是其变换器的控制。首先阐述了双馈异步电机双PWM变换器的工作原理及对应控制策略,随后建立了双馈异步电机及转子侧变换器的模型,继而分析了网侧变换器的控制模型,并据此分别设计出了结合前馈解耦的变换器双闭环控制结构框图。在Matlab/Simulink平台下,建立1.5MW双馈异步电机用双PWM变换器仿真模型,仿真结果实现了双馈异步电机用双PWM变换器控制的控制目标,验证了仿真模型和控制策略的可行性和正确性。
The core of operation control of the doubly-fed induction motor is the control of converter. Firstly the working principle and the corresponding control strategies of dual-PWM converter used in doubly-fed in- duction motor were expounded. Then the model of the doubly-fed induction motor and the rotor side convert- er are established , and then the control model of the network side converter was analyzed. And according- ly, combining feed-forward decoupling, the converter double closed loop control structure diagrams are de- signed. In Matlab/Simulink platform, the dual-PWM converter used in doubly-fed induction motor whose power is 1.5 MW was established, the simulation results achieved the control targets of the dual-PWM con- verter used in doubly-fed induction motor and validated the feasibility and correctness of the simulation model and control strategy.
出处
《微电机》
2017年第8期62-66,共5页
Micromotors
基金
内蒙古自治区自然科学基金项目(2014MS0527)
关键词
双馈电机
变换器
前馈解耦
双闭环控制
doubly-fed motor
converter
feed-forward decoupling
double closed loop
