Study Of Improving Usability Of Asynchronous Motor Direct Torque Control

Simulation method used in this paper analyzes the traditional DTC system the main reason for low speed performance, and to study how to further improve the performance of the DTC system specific strategies. After the mathematical derivation, and the distinct voltage vector electromagnetic torque under the incremental expression, and of different voltage vector of the torque generated by changing impact. In the above conclusions of the study, based on a new type of flux and torque of the two-tier program hysteresis. Analysis of the DTC system is activated in different ways, the current phase stator and the stator flux changes in the law. Simulation on the basis of a simple and practical method of soft start.