What is the optimum PWM inverter architecture when the pulse number is small?

Author

Kawamoto, Hisanosuke ; Sugimori, Katsunori ; Hirao, Noriyuki ; Ikeda, Takumi

Author_Institution

Nippon Electric Ind. Co. Ltd., Ibaraki, Japan

fYear

1991

fDate

5-8 Nov 1991

Firstpage

608

Lastpage

615

Abstract

The optimum pulsewidth-modulated (PWM) inverter architecture for voltage-stiff inverters with relatively small pulse number is investigated. The figures of merit are the following: higher harmonics content and the frequency of dominant residual harmonics; switching frequency in each of the switching devices; response in instantaneous voltage control; and simplicity in the power circuit configuration. A sufficient control range and a good control characteristic are required. Basic PWM inverter and modulation methods are considered. In the large-capacity region, the compromise between several items is discussed. From various points of view, PWM patterns and multi-unit inverter topologies are compared. The combination of multi-unit inverter and PWM inverter is proposed

Keywords

harmonics; invertors; network analysis; optimisation; pulse width modulation; switching circuits; PWM inverter; architecture; control characteristic; figures of merit; harmonics; network analysis; optimisation; pulse number; response; switching frequency; voltage stiffness; Bridge circuits; Frequency; Power system harmonics; Pulse inverters; Pulse transformers; Pulse width modulation; Pulse width modulation inverters; Space vector pulse width modulation; Uninterruptible power systems; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference, 1991. INTELEC '91., 13th International

Conference_Location

Kyoto

Print_ISBN

0-87942-670-5

Type

conf

DOI

10.1109/INTLEC.1991.172457

Filename

172457