A novel three-phase quasi-resonant DC link inverter

Author

Lee, Jin-Woo ; Sul, Seung-Ki ; Park, Min-Ho

Author_Institution

Electron. Res. Center, Samsung Adv. Inst. of Technol., Kyungki-Do, South Korea

fYear

1991

fDate

Sept. 28 1991-Oct. 4 1991

Firstpage

803

Abstract

A three-phase quasi-resonant DC link inverter (QRI), which adopts the resonant circuit with one additional switch, is proposed. The circuit states for given switching and load current states in the inverter are analyzed, and then an equivalent circuit seen from the inverter input side is derived. By using this equivalent circuit the QRI is analyzed, and two control techniques, which are the initial current control technique of resonant inductor and the initial voltage control technique of resonant capacitor, are presented in order to obtain the desirable oscillation of resonant link irrespective of inverter operation. The operating characteristics of QRI are verified through both simulations and experiments.<>

Keywords

electric current control; equivalent circuits; invertors; voltage control; current control; equivalent circuit; load current; operating characteristics; quasi-resonant DC link inverter; resonant inductor; three-phase; voltage control; Capacitors; Current control; Equivalent circuits; Inductors; RLC circuits; Resonance; Resonant inverters; Switches; Switching circuits; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1991., Conference Record of the 1991 IEEE

Conference_Location

Dearborn, MI, USA

Print_ISBN

0-7803-0453-5

Type

conf

DOI

10.1109/IAS.1991.178331

Filename

178331