Study of dead time of PWM rectifier of Voltage-source inverter without DC-link components and its operating characteristics of induction motor

Author

Iimori, Kenichi ; Shinohara, Katsuji ; Yamamoto, Kichiro

Author_Institution

Dept. of Electr. & Electron. Eng., Kagoshima Univ., Japan

Volume

42

Issue

2

fYear

2006

Firstpage

518

Lastpage

525

Abstract

A voltage-source inverter without dc-link components is an ac-to-ac converter having dual bridges of a pulsewidth-modulated (PWM) rectifier and a PWM inverter that can be controlled independently. While conventional matrix converters have disadvantages, such as a complicated commutation scheme and necessity of a large-sized clamp circuit, commutation, and protection of our inverter can be implemented easily. In order to control the PWM rectifier and the PWM inverter independently, snubber circuits for the PWM rectifier are required to assure the path of load current during dead time. In this paper, analytical method of a snubber circuit and operating characteristics of a snubber circuit are described when a 0.75-kW induction motor is driven by our inverter.

Keywords

AC-DC power convertors; PWM invertors; PWM rectifiers; commutation; induction motor drives; machine protection; matrix convertors; snubbers; 0.75 kW; AC-to-AC converter; DC-link components; PWM rectifier dead time; clamp circuit; commutation scheme; induction motor drives; inverter protection; matrix converter; pulse width modulation; snubber circuits; voltage source inverter; Bridge circuits; Commutation; Induction motors; Matrix converters; Pulse inverters; Pulse width modulation converters; Pulse width modulation inverters; Rectifiers; Snubbers; Voltage control; Snubber circuit; voltage-source inverter; without dc-link components;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/TIA.2006.870040

Filename

1608230