电励磁同步电机系统及直流电压容错控制研究
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摘要
在建立电励磁同步电机数学模型的基础上,采用基于气隙磁场定向的电励磁同步电机矢量控制方法,同时该系统采用混合磁链观测器进行磁链观测。在分析电励磁同步电机控制系统有源前端整流器数学模型的基础上,通过理论分析与推导,研究了一种其直流侧电压在任意负载下的估算算法,并实现直流侧电压检测部分的容错控制。理论分析和仿真结果表明:在基于气隙磁场定向的电励磁同步电机矢量控制中,该直流电压估算算法可以在电励磁同步电机四象限运行中实现控制系统直流侧电压的估算及其容错控制。
Based on the math model of electric excitation synchronous motor,a vector control method based on the air-gap magnetic field orientation was studied. Meanwhile,mixed flux observer were adopted in the system. And base on the math model of the active front end rectifier of the electric excitation synchronous motor control system,the DC-link voltage estimation algorithm with any load transient was analyzed,by testing and theoretical analysis,and implementation of a fault-tolerant control of DC-link voltage test section. Theory analysis and simulation results showed that the electric excitation synchronous motor vector control base on mixed flux observer can realize four quadrant operation and estimation of DC-link voltage and control strategy for DC-link voltage fault condition.
Based on the math model of electric excitation synchronous motor,a vector control method based on the air-gap magnetic field orientation was studied. Meanwhile,mixed flux observer were adopted in the system. And base on the math model of the active front end rectifier of the electric excitation synchronous motor control system,the DC-link voltage estimation algorithm with any load transient was analyzed,by testing and theoretical analysis,and implementation of a fault-tolerant control of DC-link voltage test section. Theory analysis and simulation results showed that the electric excitation synchronous motor vector control base on mixed flux observer can realize four quadrant operation and estimation of DC-link voltage and control strategy for DC-link voltage fault condition.
引文
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[2]李崇坚.交流同步电机调速系统[M].北京:科学出版社,2006.
[3]阮毅,陈伯时.电力拖动自动控制系统:运动控制系统[M].北京:机械工业出版社,2009.
[4]吴轩钦,谭国俊,宋金梅,等.基于混合磁链观测器电励磁同步电机矢量控制[J].电机与控制学报,2010,14(3):62-67.
[5]张兴,张崇巍.PWM整流器及其控制[M].北京:机械工业出版社,2012.
[6]凌杰,卫一恒,陈昊,等.基于气隙磁链模型的大功率永磁同步电机速度控制[J].微特电机,2013,41(1):27-30.
[7]严伟,周腊吾,浦清云,等.基于PR控制器的永磁同步电机弱磁控制[J].微特电机,2012,40(1):38-40.
[8]唐翼.基于磁链观测器的同步电机矢量控制系统研究[D].武汉:武汉理工大学,2014.
[9]吴苏敏,董立威,刘洋,等.基于气隙磁密波形优化的永磁同步电机结构[J].电机与控制应用,2014,41(3):12-16.
[10]赵纪龙,林明耀,付兴贺,等.混合励磁同步电机及其控制技术综述和新进展[J].中国电机工程学报,2014,34(33):5876-5882.
[11]王志川,姜林林.基于PR调节器的电励磁同步电机系统仿真研究[J].微特电机,2016,44(8):93-98.
[12]YE Y,KAZERANI M,QUINTANA V H.A novel modeling and control method for three-phase PWM converters[C]//IEEE Power Electronics Specialists Conference.IEEE,2001:102-107.