Title :
Multi-speed control of single-phase induction motors for blower applications
Author :
Julian, Alexander L. ; Wallace, Richard S. ; Sood, Pradeep K.
Author_Institution :
Power Electron. Res. Center, Missouri Univ., Columbia, MO, USA
Abstract :
A simple electronic scheme is studied for multispeed operation of a permanent split capacitor single phase induction motor used to run fractional horsepower blowers and pumps. Computer simulations are used to predict efficiency, harmonic distortion, and pulsating torque when the motor is fed at 60 Hz, 40 Hz or 30 Hz by means of a four-triac bridge circuit. Results of simulations and laboratory tests are compared, and show close agreement. This scheme may be a cost effective alternative to tapped-winding or pole-changing motors
Keywords :
capacitor motors; fractional-horsepower motors; harmonics; induction motors; machine control; pumps; torque; velocity control; 30 Hz; 40 Hz; 60 Hz; blower applications; computer simulations; efficiency; electronic scheme; four-triac bridge circuit; fractional horsepower blowers; harmonic distortion; multispeed control; permanent split capacitor single phase induction motor; pulsating torque; pumps; single-phase induction motors; Bridge circuits; Capacitors; Circuit simulation; Circuit testing; Computational modeling; Computer simulation; Harmonic distortion; Induction motors; Laboratories; Torque;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1993. APEC '93. Conference Proceedings 1993., Eighth Annual
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0983-9
DOI :
10.1109/APEC.1993.290636
