Control strategy for a three phase series-connected hybrid inverter system

Author

Fukuda, Shoji ; Kitano, Masayulu

Author_Institution

Syst. & Inf. Div., Hokkaido Univ., Sapporo, Japan

Volume

2

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

968

Abstract

A hybrid inverter system aiming at a higher voltage higher capacity higher efficiency inverter system having fewer harmonics in its output is proposed. The system consists of a GTO inverter operating in a square-wave switching mode and a neutral-point-clamped IGBT inverter operating in a PWM switching mode. The former produces a basic part of the resultant output. The latter not only produces an additional part of that to control the resultant output, but also offsets the harmonic components generated by the GTO inverter. A basic control strategy for the hybrid inverter system is proposed, and its validity is verified by experimental investigations

Keywords

DC-AC power convertors; PWM invertors; bipolar transistor switches; control system synthesis; harmonic distortion; harmonics suppression; insulated gate bipolar transistors; power bipolar transistors; power conversion harmonics; power semiconductor switches; switching circuits; thyristor convertors; voltage control; GTO inverter; PWM switching mode; control design; control performance; control strategy; harmonic components; neutral-point-clamped IGBT inverter; output harmonics reduction; square-wave switching mode; three phase series-connected hybrid inverter system; Control systems; Insulated gate bipolar transistors; Pulse width modulation inverters; Switching loss; Transformers; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2001. PESC. 2001 IEEE 32nd Annual

Conference_Location

Vancouver, BC

ISSN

0275-9306

Print_ISBN

0-7803-7067-8

Type

conf

DOI

10.1109/PESC.2001.954245

Filename

954245