Three-Phase to Three-Phase-Four-Wire Five-Leg Converters

Author

Jacobina, C.B. ; Freitas, I.S. ; da Silva, Edison Roberto Cabral ; Lima, A.M.N.

Author_Institution

Departamento de Engenharia Eletrica, Univ. Fed. de Campina Grande

fYear

2005

fDate

15-15 May 2005

Firstpage

850

Lastpage

857

Abstract

This paper proposes four five legs ac/ac converter topologies for supplying three-phase four-wire loads. All topologies use ten power switches (five legs) and a capacitor dc-bus midpoint connection. The converters provide bi-directional power flow and can be used for uninterrupted power supply applications. The overall control strategy for providing the dc-bus voltage, power factor control and PWM signal generation is also presented. Experimental and simulated results are presented

Keywords

AC-AC power convertors; load flow; power capacitors; switches; uninterruptible power supplies; PWM signal generation; ac/ac converter; bidirectional power flow; capacitor dc-bus midpoint connection; four-wire five-leg converters; power factor control; power switches; three-phase four-wire loads; uninterrupted power supply applications; Bidirectional control; Capacitors; Leg; Load flow; Power generation; Power supplies; Pulse width modulation; Reactive power; Topology; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Machines and Drives, 2005 IEEE International Conference on

Conference_Location

San Antonio, TX

Print_ISBN

0-7803-8987-5

Electronic_ISBN

0-7803-8988-3

Type

conf

DOI

10.1109/IEMDC.2005.195822

Filename

1531440