Generation of PWM signals for full range speed control of three-phase induction motor simulation by using a computer

Abstract EN

The principle operation of speed control systems is depended upon a wide range of generated frequencies a microprocessor was used to generate PWM or a six-steps modulated signal to maintain a constant voltage / frequency ratio.

Because of speed computation limitations found in many available microcomputers previously, it was concluded that the on-line computation of switching patterns was not practical.

The control and monitoring by using PC is more efficient and active.