Inverter Harmonic Suppression Theory And Applied Research

This paper, presents the significance and way of Hannonic-suppression, and introduces the study and development in VVVF by using mainly technology of SPWM (Sinusoidal Pulse Width Modulate), including using kinology to model motor and studying the technology of VVVE After that, I introduced a new mixed sample used in the harmonic-suppression of system of VVVF. A simulation method using MATLAB/SIMULINK is provided to deal with AC motor speed variable control system. An example of sinusoidal PWM inverter is presented to describe modeling and simulation for AC motor as well as SIMULINK simulation diagrams. The results shows that AC motor system simulation using SIMULINK is a simple, direct and convenient. At last, introduces technology of microcomputer control used in VVVF.