More application considerations for PWM inverter-fed low-voltage induction motors

Pulse-width modulation (PWM) inverters provide many benefits to their users, including improved control of processes, reduced energy consumption, and expanded diagnostics. Despite these benefits, PWM inverters should be applied with special consideration for low-voltage induction motor operation. Some of the known, possible adverse effects PWM inverters cause for low-voltage induction motors and the impact these effects have on the given application are highlighted. These effects include increased heating, high peak voltages, and increased audible noise. This work is intended for those who are applying PWM inverter-fed low voltage induction motors, not those designing them.<>