摘要
将SVPWM控制技术应用到双馈电机调速控制系统,转子回路采用双PWM变换器控制,实现了绕线异步电机功率因数高、谐波污染小等高性能的调速指标。首先推导了网侧PWM变换器的数学模型,设计出基于电网电压定向的电压、电流双闭环控制策略;其次推导了绕线异步电机双馈运行时的数学模型,提出了基于定子电压定向的转速、电流双闭环转子侧PWM变换器的控制策略;最后搭建了基于英飞凌XC2785X的双馈调速系统实验平台,实验结果验证了控制策略的可行性和有效性。
The SVPWM control technology was applied to doubly-fed motor drive control system, the rotor circuit was controlled by double PWM converter. A high performance speed- regulating control system with high power factor and small harmonic pollution was realized. Firstly, the mathematical model of the grid side PWM converter was derived, and then voltage, current double closed loop control strategy based on a grid voltage orientation was proposed. Secondly, the mathematical model of doubly- fed asynchronous motor was derived, and then the rotor side PWM converter control strategy based on a stator voltage orientation, which includes speed, current double closed loop was designed. Finally, experimental platform for doubly- fed speed- regulating control system based on Infineon XC2785X was built. Experimental results show that the control strategy is feasible and efficient.
出处
《电气传动》
北大核心
2013年第1期17-20,共4页
Electric Drive
基金
上海大学研究生创新基金(SHUCX112182)
关键词
绕线异步电机
双馈调速
空间矢量脉宽调制
功率因数
asynchronous motor
doubly-fed speed-regulating
space vector pulse width modulation （SVPWM）
power factor
