CAJ | 학술논문

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.
장SVPWM공제기술응용도쌍궤전궤조속공제계통,전자회로채용쌍PWM변환기공제,실현료요선이보전궤공솔인수고、해파오염소등고성능적조속지표.수선추도료망측PWM 변환기적수학모형,설계출기우전망전압정향적전압、전류쌍폐배공제책략;기차추도료요선이보전궤쌍궤운행시적수학모형,제출료기우정자전압정향적전속、전류쌍폐배전자측PWM변환기적공제책략;최후탑건료기우영비릉XC2785X적쌍궤조속계통실험평태,실험결과험증료공제책략적가행성화유효성.
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.