I have a 1/3 HP 120VAC motor with fixed RPM. It is controlled from a digital out channel of a DAQ card and a SSR. Basically, It is either ON or OFF. I want to know if it is OK to use pulse width modulation (PWM) on an AC motor. I want to avoid overshooting from target level so I am implementing a PID controller by varying duty cycle of pulse. I have heard that motors especially dont do well with sudden ON/OFF cycles. What are your thoughts?
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