电气传动2018，Vol.48Issue(3)：9-12,4.DOI:10.19457/j.1001-2095.20180302
传统异步电机直接转矩控制改进及仿真
Improvement and Simulation of Traditional Induction Motor Direct Torque Control
王定龙 1王然风 1赖春林1
作者信息
- 1. 太原理工大学矿业工程学院,山西 太原030024
- 折叠
摘要
Abstract
For the optimization of the integral initial value and the DC error problems which exist in the traditional voltage-current flux observation method,meanwhile,to minish the traditional direct torque control magnetic chain pulsation as well as the starting current of the motor,the stator flux observer of dual low pass filter was used to replace the traditional flux observer,and the six sectors were changed into twelve sectors.The stator current and flux amplitude were limited.Then,the method was verified by Matlab.The results show the significant decrease in the flux linkage locus,the speed and torque ripple.At the same time,the stator current waveform was closer to the sine wave. Finally,it comes to a conclusion that the decrease of the three-phase asynchronous motor torque ripple and its smooth running can be realized by utilizing the double low pass filter plus sector segmentation method and the magnetic chain, current amplitude control.Consequently,the dynamic and static performance of the control system are ameliorated.关键词
直接转矩控制/电压矢量/12扇区/脉动Key words
direct torque control/voltage vector/twelve sectors/ripple分类
信息技术与安全科学引用本文复制引用
王定龙,王然风,赖春林..传统异步电机直接转矩控制改进及仿真[J].电气传动,2018,48(3):9-12,4.
