Power balancing of a multilevel converter with two insulated supplies for three-phase six-wire loads

Author

Grandi, Gabriele ; Rossi, Claudio ; Lega, Alberto ; Casadei, Domenico

Author_Institution

Dept. of Electr. Eng., Bologna Univ.

fYear

2005

fDate

11-14 Sept. 2005

Abstract

A multilevel converter topology feeding three-phase open-end winding loads is considered in this paper. The scheme is based on two insulated DC supplies, each one feeding a standard two-level, three-phase inverter. A three-phase, six wires load is connected across the output terminals. A new modulation technique able to regulate the sharing of the output power between the two DC sources within each switching cycle is presented. The performance of the whole system has been verified by numerical simulations

Keywords

network topology; numerical analysis; switching convertors; windings; DC supply insulation; multilevel converter topology; numerical simulations; power balancing; power sharing; switching cycle; three-phase open-end winding loads; three-phase six-wire loads; AC motors; Batteries; Costs; Dielectrics and electrical insulation; Electric vehicles; Inverters; Load flow; Low voltage; Power engineering and energy; Topology; Converter control; Modulation strategy; Multilevel converters; Voltage Source Inverters (VSI);

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications, 2005 European Conference on

Conference_Location

Dresden

Print_ISBN

90-75815-09-3

Type

conf

DOI

10.1109/EPE.2005.219604

Filename

1665794