Title :
Cost-effective bidirectional chopper-based battery link UPS with common input-output bus line and its control scheme
Author :
Hirachi, K. ; Kajiyama, A. ; Mii, T. ; Nakaoka, M.
Author_Institution :
Res. & Dev. Div., Yuasa Corp., Osaka, Japan
Abstract :
This paper presents a nonisolated prototype of an input-output common bus line UPS circuit topology using IGBT modules, which incorporates a bidirectional power converter circuit for battery bank interface, as well as its related-specific current-mode control strategy. The steady-state operating principle of the power conversion circuit system topologies and control strategy are described herein. Feasible experimental results of this cost-effective and high-performance UPS topology with a two-quadrant chopper-fed battery bank are illustrated for a 3 kVA UPS and discussed as compared with a conventional UPS with battery bank connected to an HVDC bus
Keywords :
AC-DC power convertors; DC-AC power convertors; bipolar transistor switches; choppers (circuits); insulated gate bipolar transistors; invertors; power bipolar transistors; power semiconductor switches; rectifying circuits; secondary cells; uninterruptible power supplies; 3 kVA; IGBT modules; battery link UPS; bidirectional chopper; circuit topology; input-output common bus line UPS; steady-state operating principle; two-quadrant chopper; Batteries; Bridge circuits; Circuit topology; Costs; Frequency; Low pass filters; Power conversion; Pulse width modulation inverters; Switching converters; Uninterruptible power systems;
Conference_Titel :
Industrial Electronics, Control, and Instrumentation, 1996., Proceedings of the 1996 IEEE IECON 22nd International Conference on
Conference_Location :
Taipei
Print_ISBN :
0-7803-2775-6
DOI :
10.1109/IECON.1996.570666
