摘要
介绍了异步电动机直接转矩控制系统的基本组成和工作原理。采用异步电动机α-β坐标系下的磁链和转矩观测模型,按照磁链的圆形与六边形控制方法,基于MATLAB6.5／Simulink5.0构建了直接转矩控制调速系统的仿真模型。提出了一种新的判断磁链运行区间的方法,该方法简单可行、计算量小。仿真结果验证了该模型的正确性和该控制系统的有效性。
The basic structure and the working principle of the direct self-control (DSC) system of an asynchronous motors are introduced. The model of the DSC speed control system based on MATLAB6.5/Simulink5.0 was built up according to the observation model of the flux linkage and torque of the asynchronous motor in the α-β coordinate and the control method of the flux linkage trace that was hexagon or round. Furthermore, a new method to estimate the running zone of the flux linkage is put forward, which was simple and needed a little calculation. The simulation results demonstrated that the simulation model was right and the control system was effective.
出处
《电机与控制学报》
EI
CSCD
北大核心
2004年第4期329-332,387,共4页
Electric Machines and Control
