永磁同步电动机弱磁运行控制研究  

Weak flux control for permanent magnet synchronous motor

作　　者：陈书锦[1] 杨帅[1] 杜煦[1] 

机构地区：[1]江苏科技大学江苏省先进焊接技术重点实验室,江苏镇江212003

出　　处：《江苏科技大学学报（自然科学版）》2010年第6期576-580,共5页Journal of Jiangsu University of Science and Technology:Natural Science Edition

基　　金：江苏省先进焊接技术重点实验室开放基金资助项目(106220116)

摘　　要：为了提高永磁同步驱动电机弱磁运行性能,根据驱动系统的特点,在详细分析永磁同步电动机驱动系统弱磁运行过程的基础上,分析了不同弱磁参数对电机转矩、扩速能力的影响,指出了永磁同步电动机直接转矩弱磁控制基本原则和最佳的弱磁率范围为[0.25,0.75]。在弱磁运行过程中,根据转速的变化不断调节磁链和转矩给定,在空间电压矢量调制的基础上,实现了永磁同步电动机直接转矩弱磁运行,实验结果证明了文中提出的控制算法和控制方法的正确性和有效性。In order to improve the performance of weak magnetic of PMSM,according to the characteristics of drive system and detailed analysis of PMSM weak flux process,the influence of different parameters on the motor torque,extend speed capacity was analyzed.The basic principles of PMSM-DTC weak flux control were proposed,and the best range of weak flux ratio was [0.25,0.75].Based on SVM,the reference speed and torque were adjusted automatically.Furthermore,PMSM-DTC weak flux controlling was realized.Experimental results show that control algorithms and control methods proposed in this paper are correct and effective.

关 键 词：永磁同步电动机 弱磁控制 弱磁率 

分 类 号：TG921.1[金属学及工艺—钳工工艺]