一种永磁同步电机系统效率优化控制策略研究  

Study on an efficiency optimization method for permanent magnet synchronous motor

作　　者：巫春玲[1] 程琰清 刘智轩 胡雯博 Wu Chunling;Cheng Yanqing;Liu Zhixuan;Hu Wenbo(School of Electric and Control Engineering,Chang′an University,Xi′an 710064,China)

机构地区：[1]长安大学电子与控制工程学院,西安710064

出　　处：《电子测量技术》2020年第10期36-41,共6页Electronic Measurement Technology

基　　金：国家自然科学基金(61201407,41101357,61701044);中央高校基本科研业务费专项资金(310832151096);中央高校教育教学改革项目(300103184051);本科教学项目建设(300104283216,300104283205)项目资助

摘　　要：为了解决传统直接转矩控制(DTC)在电机低速运行时存在的转矩和磁链脉动较大的问题,在直接转矩控制基础上提出了一种新的永磁同步电机(PMSM)系统效率优化控制策略—基于电机损耗模型的空间矢量脉宽调制直接转矩控制系统(SVPWM-DTC)。该控制系统不仅能减小转矩和磁链脉动情况,而且降低了电机系统损耗,实现电机最大效率运行。通过MATLAB仿真实验对传统DTC控制系统与基于电机损耗模型的SVPWM-DTC控制系统进行了实验比较,验证了所提方法的有效性。In order to solve the problem of torque and flux linkage ripple a lot in traditional direct torque control(DTC)When the motor is running at low speed,a new efficiency optimization control strategy for permanent magnet synchronous motor(PMSM)system based on direct torque control(DTC)is proposed in this paper,which is space vector pulse width modulation direct torque control,PWM-DTC system based on the motor loss model.The control system can not only reduce the torque and flux linkage ripple,but also reduce the loss of the motor system to achieve the maximum efficiency of the motor operation.The traditional DTC control system is compared with the SVPWMDTC control system based on the loss model of motor through the simulation experiment of MATLAB,and the effectiveness of the new method is verified.

关 键 词：永磁同步电机 直接转矩控制 空间矢量脉宽调制 损耗模型 

分 类 号：TM461[电气工程—电器]