Title :
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
fDate :
Sept. 28 1991-Oct. 4 1991
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;
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
DOI :
10.1109/IAS.1991.178364
