A novel quasi-resonant DC-link PWM inverter for induction motor drive

Author

Jafar, J.J. ; Fernandes, B.G.

Author_Institution

Dept. of Electr. Eng., Indian Inst. of Technol., Kanpur, India

Volume

1

fYear

1999

fDate

36373

Firstpage

482

Abstract

A novel quasi-resonant DC-link (QRDCL) inverter for induction motor drives is proposed. Only one additional switching device is being used to create zero voltage instants in the DC-link to facilitate zero voltage switching of the inverter devices under all loading conditions. The voltage stress on the inverter devices is around (1.01-1.10)pu and any PWM technique can be used to control the output voltage of the inverter. In this paper, the principle of operation and the detailed analysis of the proposed QRDCL inverter are presented. Design criterion to achieve soft switching of the inverter devices is also given. Detailed PSPICE simulation studies are carried out to predict the performance of the inverter feeding an induction motor and these simulated results are verified experimentally

Keywords

DC-AC power convertors; PWM invertors; induction motor drives; load (electric); resonant power convertors; switching circuits; PSPICE simulation; PWM technique; additional switching device; design criterion; induction motor drive; loading conditions; output voltage control; performance prediction; quasi-resonant DC-link PWM inverter; soft switching; voltage stress; zero voltage instants; zero voltage switching; Induction motor drives; Inductors; Pulse width modulation inverters; RLC circuits; Resonance; Resonant inverters; Stress; Switches; Switching circuits; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1999. PESC 99. 30th Annual IEEE

Conference_Location

Charleston, SC

ISSN

0275-9306

Print_ISBN

0-7803-5421-4

Type

conf

DOI

10.1109/PESC.1999.789050

Filename

789050