Dual AC-drive system with a reduced switch count

Ledezma E.; Mcgrath, B; MuÑoz A.; Lipo T.A.

Keywords: AC drives; Inverters; Multiple drive units; Reduced, switch converters

Abstract

A dual current-regulated pulsewidth-modulated voltage-source inverter based on multiple two-phase PWM inverters, also called a B4 topology, requiring a dual ac-drive system with reduced switch count is proposed. The drive utilizes a total of only eight switches to produce two sets of three-phase or two-phase sinusoidal output currents that can be employed to feed three-phase or two-phase induction motors. A suitable control strategy of this new scheme is shown to minimize the single-phase current flow through the dc-link capacitors, which is a common problem in reduced-switch-count topologies. In order to verify the performance of the motor drive system, an application on traction of an electric vehicle is carried out. Results show that the ac current through the dc link can be minimized, and when utilizing two-phase motors on the proposed dual drive, the reduced voltage gain problem, also common in B4 topologies feeding three-phase motors, can be solved.

Más información

Título según SCOPUS: Dual AC-drive system with a reduced switch count
Título de la Revista: IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
Volumen: 37
Número: 5
Editorial: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Fecha de publicación: 2001
Página de inicio: 1325
Página final: 1333
Idioma: English
DOI:

10.1109/28.952508

Notas: SCOPUS