双凸极永磁电机的直接转矩控制  

Direct Torque Control for Doubly Salient Permanent Magnet Motors

作　　者：何一鸿 陆可[1] 吴梦颖 He Yihong;Lu Ke;Wu Mengying(College of Electrical Engineering,Southwest Jiaotong University,Chengdu Sichuan 611756,China)

机构地区：[1]西南交通大学电气工程学院

出　　处：《电气自动化》2020年第1期29-32,共4页Electrical Automation

基　　金：国家自然科学基金(51477146):基于切换LPV理论的高速动车电机鲁棒控制研究

摘　　要：由于双凸极电机的结构,使其在运行时会有较大的转矩脉动,针对这一缺点,提出了双凸极永磁电机的直接转矩控制方式。采用有限元的方法对双凸极永磁电机(DSPM)进行了磁场分析。分析了其数学模型,降低了转矩的脉动。通过仿真验证了双凸极永磁电机直接转矩控制的正确性,并将其与传统的转速电流双闭环控制方式进行了比较,在直接转矩控制方式下,双凸极永磁电机转矩脉动较小,转速更为平稳。Because of its structure,the doubly salient motor has strong torque ripple during its operation.To overcome this disadvantage,a direct torque control strategy was developed for the doubly salient permanent magnet motor(DSPM).Its magnetic field was analyzed in the finite element method.Its mathematical model was analyzed,too.This approach reduced torque ripple,and simulation verified the correctness of direct torque control for the DSPM.Compared with the traditional double closed-loop control method for rotating speed and current,the DSPM had smaller torque ripple and more stable rotating speed in the case of direct torque control.

关 键 词：双凸极永磁电机 数学模型 转矩脉动 直接转矩控制 有限元分析 

分 类 号：TM359[电气工程—电机]