Title :
Analytical considerations on power loss in a three-arm-type uninterruptible power supply
Author :
Hirao, Noriyuki ; Satonaga, Etsuichi ; Uematsu, Takeshi ; Kohama, Teruhiko ; Ninomiya, Tamotsu ; Shoyama, Masahito
Author_Institution :
Dept. of Electr. Eng., Kyushu Univ., Fukuoka, Japan
Abstract :
The power efficiency of a three-arm-type UPS has been examined. In this UPS configuration, the center arm, called the “common arm”, operates in both PWM rectifier mode and PWM inverter mode. In this paper, a basic steady-state analysis and analytical considerations on power loss are described, and these analysis are confirmed by experiments
Keywords :
AC-DC power convertors; DC-AC power convertors; PWM invertors; PWM power convertors; losses; rectifying circuits; uninterruptible power supplies; PWM inverter mode; PWM rectifier mode; analytical considerations; common arm; power efficiency; power loss analysis; steady-state analysis; three-arm-type uninterruptible power supply; Accidents; Arm; Computer interfaces; Pulse width modulation; Pulse width modulation inverters; Rectifiers; Signal generators; Switches; Uninterruptible power systems; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE
Conference_Location :
Fukuoka
Print_ISBN :
0-7803-4489-8
DOI :
10.1109/PESC.1998.703439
