永磁同步电机电流预测控制算法  

A Predictive Current Control Scheme for Permanent Magnet Synchronous Motors

作　　者：牛里[1] 杨明[1] 刘可述[1] 徐殿国[1] 

机构地区：[1]哈尔滨工业大学电气工程及自动化学院,黑龙江省哈尔滨市150001

出　　处：《中国电机工程学报》2012年第6期131-137,共7页Proceedings of the CSEE

基　　金：国家自然科学基金项目(51007012);国家科技重大专项(2009ZX04010-011-02)~~

摘　　要：在同步旋转轴系下,提出了一种基于无差拍算法的永磁同步电机离散化电流预测控制方法,来提高电机电流环的性能。基于电机数学模型,电流控制器根据电流给定和反馈值计算得到电压矢量,通过空间矢量脉宽调制模块将电压矢量转换为开关信号。引入了鲁棒电流预测算法,来减小预测模型参数误差对系统稳定性的影响。仿真和实验结果表明,与传统矢量控制相比,永磁同步电机电流预测控制算法有效地提高了伺服系统电流环的动态性能和稳态精度。This paper presented a discrete predictive current control scheme for permanent magnet synchronous motors（PMSM） based on the dead-beat algorithm in the synchronous frame to improve the performance of the current loop.Based on the mathematical model of PMSM,the current controller directly calculated the expected voltage vector according to the current reference and feedback values;then transformed the voltage vector into switch signals with space vector pulse width modulation model.The robust predictive current control was introduced to decrease the sensitivity of system stability caused by the model parameters error.Simulation and experiment results showed that the PMSM current predictive control scheme efficiently improved both the dynamic performance and the steady-state precision of the current loop.

关 键 词：永磁同步电机 电流控制 预测控制 鲁棒性 

分 类 号：TM351[电气工程—电机]