Title :
A carrier-based unbalanced PWM method for four-leg voltage source inverter fed asymmetrical two-phase induction motor
Author :
Kumsuwan, Y. ; Srirattanawichaikul, W. ; Premrudeepreechacharn, S. ; Higuchi, K. ; Toliyat, H.A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Rajamangala Univ. of Technol. Lanna, Tak, Thailand
Abstract :
This paper presents a carrier-based unbalanced PWM method for two-phase four-leg voltage source inverter and its realization for asymmetrical two-phase induction motor. A modulation strategy is developed to synthesize unbalanced two-phase output voltage waveforms based on the unipolar modulation technique with open-loop V/f control. The proposed control scheme allows independent magnitude controllability and quadrature phase angle for unbalanced two-phase output voltages. Thus, the modulation algorithm makes the four-leg voltage source inverter inequitable with unbalanced two-phase loads. Simulation and experimental results confirm the feasibility of the control method for the inverter.
Keywords :
PWM invertors; induction motors; machine control; open loop systems; asymmetrical two-phase induction motor; carrier-based unbalanced PWM method; independent magnitude controllability; open-loop V-f control; quadrature phase angle; two-phase four-leg voltage source inverter; two-phase output voltage waveforms; unipolar modulation technique; Controllability; Induction motors; Open loop systems; Paper technology; Power electronics; Pulse width modulation inverters; Space vector pulse width modulation; Topology; Variable speed drives; Voltage control; Carrier-based PWM; asymmetrical two-phase induction motor; open-loop V/f control; two-phase four-leg voltage source inverter;
Conference_Titel :
Power Electronics Conference (IPEC), 2010 International
Conference_Location :
Sapporo
Print_ISBN :
978-1-4244-5394-8
DOI :
10.1109/IPEC.2010.5542371
