永磁同步电机磁链自适应直接转矩控制  

Flux Linkage Adaptive Direct Torque Control of Permanent Magnet Synchronous Motor

作　　者：俞志君 王浩亮 陈勇 杨建飞[2] 王日茗 樊温新 王志伟[2] 

机构地区：[1]江苏远东电机制造有限公司,江苏泰州225500 [2]南京师范大学南瑞电气与自动化学院,江苏南京210046

出　　处：《工业控制计算机》2018年第11期152-154,156,共4页Industrial Control Computer

摘　　要：传统永磁同步电机直接转矩控制方法在保持定子磁链幅值恒定的条件下,通过控制转矩角实现对电机转矩的迅速有效控制。当电机轻载或空载运行时,电机功率因数非常低。提出了一种磁链自适应直接转矩控制方法。该方法不要求保持定子磁链幅值恒定,电机运行过程中定子磁链幅值能够根据负载情况自适应变化,显著提高了电机的功率因数。The effective torque control in traditional direct torque control （DTC） of permanent magnet synchronous motor is achieved by the controlling of torque angle under constant flux linkage amplitude.The power factor in traditional direct torque control method is very low while under light load or no Ioad.A flux linkage adaptive direct torque control method is proposed in this paper.The amplitude of the stator flux linkage is not constant,it changes according to the motor load.The motor power factor is increased significantly with the proposed torque control method.

关 键 词：永磁同步电机 直接转矩控制 自适应控制 功率因数 

分 类 号：TM341[电气工程—电机]