Soft switching space vector PWM inverter using a new quasi-parallel resonant DC link

Author

Jung, Yong C. ; Liu, Hyo L. ; Cho, Guk C. ; Cho, Gyu H.

Author_Institution

Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea

Volume

2

fYear

1995

fDate

18-22 Jun 1995

Firstpage

936

Abstract

A soft switching quasi-parallel resonant DC-link (QPRDCL) inverter with improved PWM capability has been recently presented. The circuit has minimum voltage stress of the devices and provides the flexibility of selecting the on/off instants of the resonant link resulting in improved PWM capability. In this paper, the operational principles and a detailed analysis of the QPRDCL inverter is presented for resonant components design and inverter control. A space vector PWM (SVPWM), with optimal vector sequence, suitable for the QPRDCL inverter is also presented through comparisons of five different modified SVPWM techniques classified by their voltage vector sequences. The performance of the selected optimal SVPWM scheme is verified by experimental results

Keywords

DC-AC power convertors; PWM invertors; bipolar transistor switches; control system analysis; control system synthesis; insulated gate bipolar transistors; optimal control; power bipolar transistors; power semiconductor switches; power system harmonics; resonant power convertors; switching circuits; voltage control; experiments; inverter control; optimal vector sequence; performance; quasi-parallel resonant DC link; resonant components design; soft switching; space vector PWM inverter; voltage regulation; voltage stress; voltage vector sequences; Capacitors; Inductors; Pulse width modulation inverters; RLC circuits; Resonance; Space technology; Space vector pulse width modulation; Stress; Switches; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1995. PESC '95 Record., 26th Annual IEEE

Conference_Location

Atlanta, GA

Print_ISBN

0-7803-2730-6

Type

conf

DOI

10.1109/PESC.1995.474928

Filename

474928