A Control Method of Superposition Ratio in the Improvement of Voltage Utilization Factor in Three-Phase Multilevel Inverter Considering the DC Voltage Fluctuation

Author

Amei, Kenji ; Tanizaki, Youhei ; Ohji, Takahisa ; Sakui, Masaaki

Author_Institution

Univ. of Toyama, Toyama

fYear

2007

fDate

2-5 April 2007

Firstpage

137

Lastpage

142

Abstract

This paper describes a control method which combined feed back control of output voltage with the improvement on voltage utilization factor that the superposition ratio is controlled in the three-phase multilevel inverter. The purpose of this control method is to realize improvement on the controllability and absorption of the fluctuation of the DC voltage by superimposing the moderate third harmonic wave. If the instantaneous voltage ripple was absorbed, electrolytic capacitor-less will be realized.

Keywords

digital control; feedback; invertors; voltage control; DC voltage fluctuation; absorption improvement; controllability improvement; feed back control; moderate third harmonic wave; superposition ratio control; three-phase multilevel inverter; voltage utilization factor; Absorption; Circuits; DC generators; Feeds; Microprocessors; Power generation; Pulse width modulation; Pulse width modulation inverters; Voltage control; Voltage fluctuations; DC voltage fluctuation; multilevel inverter; superposition ratio; utilization factor;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Conversion Conference - Nagoya, 2007. PCC '07

Conference_Location

Nagoya

Print_ISBN

1-4244-0844-X

Electronic_ISBN

1-4244-0844-X

Type

conf

DOI

10.1109/PCCON.2007.372959

Filename

4239149