Title :
New pulse pattern operated soft switching inverter with auxiliary two-level PWM resonant snubber for next generation UPS
Author :
Kurokawa, M. ; Rukonuzzaman, M. ; Iwamoto, H. ; Konishi, Y. ; Nakaoka, M.
Author_Institution :
Grad. Sch. of Sci. & Eng., Yamaguchi Univ., Japan
fDate :
6/21/1905 12:00:00 AM
Abstract :
A three-phase space voltage vector modulated sinewave soft-switching inverter incorporating a single auxiliary resonant snubber into its DC voltage bus line is presented in this paper. This two-level PWM resonant DC link circuit with voltage-clamped PWM and zero voltage holding PWM schemes in DC bus line is described for a soft-switching chopper. The novel soft switching inverter using two-level PWM resonant DC link which includes an optimum type digital voltage servo controller in the d-q coordinate frame is discussed for UPS
Keywords :
DC-AC power convertors; PWM invertors; choppers (circuits); harmonic distortion; power conversion harmonics; resonant power convertors; snubbers; switching circuits; uninterruptible power supplies; DC bus line; d-q coordinate frame; next-generation UPS; single auxiliary resonant snubber; soft switching inverter; soft-switching; soft-switching chopper; space voltage vector modulation; two-level PWM resonant DC link; two-level PWM resonant snubber; voltage-clamped PWM scheme; zero voltage holding PWM scheme; Choppers; Digital control; Pulse inverters; Pulse width modulation; Pulse width modulation inverters; RLC circuits; Resonance; Servomechanisms; Snubbers; Voltage;
Conference_Titel :
Industrial Electronics Society, 1999. IECON '99 Proceedings. The 25th Annual Conference of the IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
0-7803-5735-3
DOI :
10.1109/IECON.1999.822222
