Simulation of Vector Control for Asynchronous Motor System by MATLAB/SIMULINK Based on MRAS

摘要

A new speed-adjustment approach of vector control for asynchronous motor was presented in this paper based on MRAS, and was simulated by MATLAB/SIMULINK. It adopted a rotate speed calculating module which is designed specifically replaced Conventional rotate speed detecting system. The approach overcomes some shortcomings that come from the precision and installation of rotate speed sensor. Motor rotate speed and torque curve was observed under different parameters based on MATLAB/SIMULINK, and was analysed statically and dynamically. Simulation result showed touque ripple of this speed-adjustment system was small and timing was smooth, which can satisfy the demand of most electric equipment for speed-adjustment performance. Via simulation, the warp of engineering design and system demand was found out and debugging periods was cut consumedly. Simulation result can realize asynchronous motor Control effectively. The motor debugging and installing were directed by the simulation result.