Characteristics of a quasi-resonant DC link PWM inverter

Author

Aoki, Tadahito ; Nozaki, Yousuke ; Kuwata, Yutaka

Author_Institution

NTT Interdisciplinary Res. Lab., Tokyo, Japan

fYear

1995

Firstpage

602

Lastpage

607

Abstract

A quasi-resonant DC link PWM inverter using a series resonant DC link (SRDCL) circuit is proposed and a 10 kW prototype inverter is described. The SRDCL circuit adjusts the input voltage of the PWM inverter to zero for a short period whenever the conditions of the inverter switches change. The design method for reducing the peak voltage stress and peak current stress on the SRDCL circuit devices is discussed. Experimental results verified the operation of the proposed inverter. The electromagnetic interference (EMI) noise levels met the CISPR Pub. 22 standard requirement and the efficiency characteristics were similar to those of a conventional PWM inverter; efficiency is 93% at output power above 5 kW

Keywords

DC-AC power convertors; PWM invertors; bipolar transistor switches; electromagnetic interference; insulated gate bipolar transistors; power bipolar transistors; power semiconductor switches; resonant power convertors; switching circuits; 10 kW; 93 percent; EMI noise levels; efficiency characteristics; electromagnetic interference; input voltage; peak current stress; peak voltage stress; power IGBT; quasi-resonant DC link PWM inverter; series resonant DC link; soft switching; zero voltage switching; Electromagnetic interference; Prototypes; Pulse width modulation inverters; RLC circuits; Resonance; Resonant inverters; Stress; Switches; Switching circuits; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference, 1995. INTELEC '95., 17th International

Conference_Location

The Hague

Print_ISBN

0-7803-2750-0

Type

conf

DOI

10.1109/INTLEC.1995.499018

Filename

499018