永磁同步电机的内模直接转矩控制  

Internal Model Direct Torque Control for Permanent Magnet Synchronous Motor

作　　者：张淼[1] 黎庆发[1] 陈思哲[1] 杜思涛[1] 

机构地区：[1]广东工业大学自动化学院,广东广州510006

出　　处：《电气传动》2014年第4期25-29,共5页Electric Drive

基　　金：广东高校优秀青年创新人才培养计划项目(2012LYM_0052);广东省自然科学基金项目(S2012040007895);广东省绿色能源技术重点实验室开放基金项目(2012003)

摘　　要：传统的直接转矩控制(DTC)存在转矩脉动大,转速PI调节器的参数整定繁琐等缺点。结合电压空间矢量脉宽调制(SVPWM)和内模控制的优点,将内模控制器引入永磁同步电机(PMSM)的SVPWM-DTC系统中。通过分析PMSM的数学模型来设计内模控制器,从而推导出参考电压矢量。实验结果表明,该控制策略实现了转速响应快且超调小,转矩脉动小,增强了控制系统的鲁棒性。Traditional direct torque control（DTC）has many shortcomings,such as large torque ripple,settingparameter of speed PI regulator is complex,etc. Combining the advantages of space vector pulse width modulation（SVPWM）of voltage with the internal model control,the internal model control was added into the permanent magnetsynchronous motor（PMSM）of SVPWM-DTC system. With the analysis of mathematical model of PMSM,the internalmodel controller was designed,and then got the reference voltage vector. The experimental results show that,by usingthis control strategy,it can make speed response rapidity with small overshoot and torque ripple and improve therobustness of the control system.

关 键 词：直接转矩控制 内模控制 转矩脉动 鲁棒性 

分 类 号：TM351[电气工程—电机]