A DC voltage notching scheme for zero voltage switching (ZVS) of PWM inverters

Author

Shireen, Wajiha ; Arefeen, M.S.

Author_Institution

Dept. of Electr.-Electron. Technol., Houston Univ., TX, USA

fYear

1994

fDate

2-6 Oct 1994

Firstpage

889

Abstract

This paper presents a DC voltage notching scheme for zero voltage switching (ZVS) of PWM inverters. The proposed scheme permits programmed DC voltage notching, i.e. the DC voltage can be brought to zero on command to facilitate ZVS of the inverter switches. This is achieved without any over voltage excursion in the DC-link and with minimal additional components. The proposed approach utilizes a simple control strategy which facilitates the use of several well known high performance PWM schemes for inverter control. A detailed analysis of the circuit operation is presented and a design procedure is outlined for proper selection of the circuit components. The feasibility of the proposed scheme is experimentally verified on a laboratory prototype

Keywords

PWM invertors; circuit testing; control system analysis; control system synthesis; network analysis; network synthesis; programmed control; switching circuits; voltage control; DC link; DC voltage notching; PWM inverters; ZVS; circuit components; design procedure; inverter switches; programmed control; simulation; zero voltage switching; IEEE members; Inductors; Laboratories; Pulse width modulation; Pulse width modulation inverters; RLC circuits; Resonance; Switches; Voltage control; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1994., Conference Record of the 1994 IEEE

Conference_Location

Denver, CO

Print_ISBN

0-7803-1993-1

Type

conf

DOI

10.1109/IAS.1994.377523

Filename

377523