Title :
High performance and long life uninterruptible power source using a flywheel energy storage unit
Author :
Takahashi, Isao ; Amei, Kenji ; Itoh, Youichi
Author_Institution :
Nagaoka Univ. of Technol., Japan
Abstract :
The development of a flywheel uninterruptible power supply incorporating electrolytic capacitorless inverters and converters, optocouplerless power device drive circuits, loss reduction of high-frequency insulated-gate bipolar transistor (IGBT) inverters, and high-response regeneration control of the induction motor is described. Results from experiments performed on a three-phase, 5 kVA uninterruptible power source show that the system provides over 15 years of life, 100% input power factor, a 1% output voltage distortion, and a 93.4% efficiency.<>
Keywords :
energy storage devices; insulated gate bipolar transistors; invertors; uninterruptible power supplies; 5 kVA; 93.4 percent; IGBT; electrolytic capacitorless inverters; flywheel energy storage; high performance; high-frequency insulated-gate bipolar transistor; high-response regeneration control; induction motor; long life uninterruptible power source; loss reduction; optocouplerless power device drive circuits; three-phase; Batteries; Circuits; Electric breakdown; Energy storage; Flywheels; Mechanical energy; Power supplies; Power system reliability; Power transmission; Uninterruptible power systems;
Conference_Titel :
Industry Applications Society Annual Meeting, 1990., Conference Record of the 1990 IEEE
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-87942-553-9
DOI :
10.1109/IAS.1990.152314
