The Research Of SVPWM Frequency Conversion Of Asynchronous Motor Based On DSP

This thesis mainly introduced a new digital signal processor TMS320LF2407A specially used in the asynchronous motor control and its applications in the VVVF system.After introduce the main technologies of AC regulation speed, the paper deduces in details the voltage space vector pulse width modulation (SVPWM) technology. Then a DSP chip TMS320LF2407A and its performance were presented, at the same time SVPWM technique and its realization via TMS320LF2407A were presented. And then systemic hardware and software were designed.The system adopted constant V/F control and Space Vector PWM technique. The simulation results and experiments indicated that the scheme of hardware and software were successful. The output waves of voltage, currents and speed curve were coincident with the expectable one. The system had the advantages of simple control, little peripheral, high performance inverters using and low price, which would meet the demands of the in fan and water pump.