电气传动2019，Vol.49Issue(6)：17-23,7.DOI:10.19457/j.1001-2095.dqcd18685
基于固定开关频率的永磁同步电机滑模控制
Sliding Mode Control of Permanent Magnet Synchronous Motor Based on Fixed Switching Frequency
摘要
Abstract
In order to improve the performance of permanent magnet synchronous moto(r PMSM)driving system,a sliding mode contro(l SMC)of PMSM based on fixed switching frequency was designed,which has better transient response compared to the traditional field oriented control(FOC)and has no problem of the variable switching frequency in traditional direct torque contro(l DTC). In the new SMC strategy,the decoupling technique was used to design the sliding surface in the abc reference frame,and the constant slope allowed the adjustment of the hysteresis bandwidth,so the switching frequency could be controlled. The discrete digital controller reduces the performance of the hysteresis comparator,that is,it is difficult to accurately adjust the switching frequency with the previous step. Therefore,a special prediction algorithm was designed to overcome this problem. Finally,the torque and speed control tests were carried out,and the test results validate the effect of the new control method.关键词
永磁同步电机/滑模控制/滞环比较器/固定开关频率Key words
permanent magnet synchronous machine/sliding mode control/hysteresis comparator/fixed switching frequency分类
信息技术与安全科学引用本文复制引用
饶美丽,徐增勇..基于固定开关频率的永磁同步电机滑模控制[J].电气传动,2019,49(6):17-23,7.基金项目
河南省科技厅科技攻关项目(172102210114) （172102210114）
