A fully digital controlled UPS using IGBT´s

Author

Kubo, I. ; Ozawa, Y. ; Nakatsuka, R. ; Shimizu, A. ; Akagi, Hirofumi

Author_Institution

Fujikura Ltd., Numazu, Japan

fYear

1991

fDate

Sept. 28 1991-Oct. 4 1991

Firstpage

1042

Abstract

An uninterruptible power system (UPS) which consists of a pulse width modulation (PWM) rectifier and inverter with fully digital control is presented. The rating of the UPS is single phase 10 kVA of 200 V input and 200 V/100 V output. The power switching devices of the UPS are insulated gate bipolar transistors (IGBTs) in the PWM rectifier and inverter working at a switching frequency of 14.7 kHz. The instantaneous feedback control of input current and output voltage results in sinusoidal input current and output voltage. Full digital control is achieved in the control circuit of the rectifier and inverter.<>

Keywords

digital control; invertors; pulse width modulation; rectifying circuits; uninterruptible power supplies; 10 kVA; 100 V; 14.7 kHz; 200 V; IGBT; PWM rectifier; UPS; fully digital control; instantaneous feedback control; insulated gate bipolar transistors; inverter; power switching devices; pulse width modulation; uninterruptible power system; Digital control; Digital modulation; Feedback control; Insulated gate bipolar transistors; Pulse inverters; Pulse power systems; Pulse width modulation inverters; Rectifiers; Switching frequency; Uninterruptible power systems;

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.1991.178364

Filename

178364