永磁同步电动机直接转矩控制伺服系统分析与仿真研究  

Analysis and Simulation of PMSM Servo System Based on DTC Control

作　　者：徐建德[1] 马瑞卿[1] 郭绪猛[1] 苏子舟[1] 

机构地区：[1]西北工业大学自动化学院,西安710072

出　　处：《微电机》2008年第4期45-48,共4页Micromotors

摘　　要：介绍了永磁同步电动机(PMSM)直接转矩控制(DTC)基本控制理论,分析了零电压矢量在控制过程中的作用。在理论分析的基础上采用零矢量的控制方案,建立了基于Matlab/Simulink的PMSM直接转矩控制伺服系统模型。仿真结果验证了加入零电压矢量可以有效地抑制转矩脉动,提高系统性能。同时该仿真模型采用位置、转速和电流三闭环控制,模拟了PMSM的恒转矩起动、恒功率运行以及负转矩制动的全过程,实现了位置伺服的精确控制。Based on the basic control theory of permanent magnet synchronous motor （PMSM） , the function of zero voltage vector in the control is analyzed. By theory analysis and using zero voltage vector, a PMSM DTC control system model has been established in Matlab, and the simulation study shows that zero voltage vector can effectively diminish the torque ripple and improve the system performance. In the triple loop of control system, the simulation models the whole procession of invariable torque starting, invariable power running, and inverse torque braking and the simulation result realizes position accurate control of the servo system.

关 键 词：永磁同步电动机 直接转矩控制 零电压矢量 建模 仿真 

分 类 号：TM341[电气工程—电机] TM351