A novel speed control technique for single-phase induction motor

Document Type : Original Article


Department of Electrical Engineering, Faculty of Engineering, Shebin El-Kom, Egypt,


In this paper, a novel speed control of a single phase induction motor is proposed using a
modified inverter. Three MOSFETs are used for controlling the flux linkage of a single
phase transformer, its secondary winding is connected in series with the motor. On-line
Bang-Bang speed control of motor scheme is implemented using a microprocessor to derive
the inverter. A mathematical model for the single-phase induction motor is presented, which
is used to build up a simulation program for a certain desired speed. Experimental results
have been carried out to investigate the motor performance with the controller. Good
agreement has been obtained between simulation and experimental results.