A 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

3

fYear

1999

fDate

1999

Firstpage

1997

Abstract

This paper presents a new quasi-resonant DC-link (QRDCL) PWM inverter with zero voltage switching (ZVS) capability. The proposed circuit creates zero voltage intervals in the DC-link to facilitate ZVS of the inverter under all loading conditions and any PWM technique can be used to control the output voltage of the inverter. The maximum voltage across the inverter device is maintained around (1.01-1.08) p.u. The paper explains the principle of operation of the circuit and describes the analysis of each mode of operation. It also gives the design criteria for achieving zero voltage switching under all loading conditions. Detailed PSPICE simulation studies are carried out to study the performance of the proposed circuit under all the possible operating conditions and these results are verified experimentally. The simulation and experimental results of this inverter feeding an induction motor drive are also given

Keywords

DC-AC power convertors; PWM invertors; SPICE; circuit simulation; induction motor drives; resonant power convertors; switching circuits; PSPICE simulation; PWM technique; ZVS; circuit performance; design criteria; induction motor drive; loading conditions; operating conditions; quasi-resonant DC-link PWM inverter; zero voltage switching; Induction motor drives; Pulse width modulation; Pulse width modulation inverters; RLC circuits; Resonance; Resonant inverters; Stress; Switches; Switching circuits; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 1999. Thirty-Fourth IAS Annual Meeting. Conference Record of the 1999 IEEE

Conference_Location

Phoenix, AZ

ISSN

0197-2618

Print_ISBN

0-7803-5589-X

Type

conf

DOI

10.1109/IAS.1999.806011

Filename

806011