AC Motor Control

Scalarcontrol(orV/Hzcontrol)isasimpletechniquetocontrolspeedofinductionmotor.Thesteady-statemodelofinductionmotorismainlyusedtoderivethetechnique,sotransientperformanceisnotpossible.Thesystemhasnocurrentloop.Inordertocontrolthemotorthethree-phasesupplyisvariedonlyinmagnitudeand