Title :
Immunity test results of a quick power failure detector of uninterruptible secondary battery system
Author :
Miyazaki, Satoshi ; Ohshima, Masaaki ; Nakamura, Fuminori ; Yamamoto, Yuushin ; Tamai, Shinzo ; Mori, Haruyoshi
Author_Institution :
Tokyo Electr. Power Co. Inc., Japan
Abstract :
An uninterruptible secondary battery system (USBS) consists of secondary batteries and a multi-functional power converter having plural operational modes including local load leveling and uninterruptible power supply (UPS). For the USBS, a quick power failure detector is essential for the smooth operational mode changes. However, commercial AC line voltage harmonic distortion or voltage unbalance may cause misoperation of the quick power failure detector. In this paper we present immunity test results of the USBS. The test results proved that the proposed detector has sufficient immunity to harmonic distortion and unbalance of the commercial AC line voltage
Keywords :
electric sensing devices; failure analysis; harmonic distortion; power convertors; power system harmonics; secondary cells; uninterruptible power supplies; voltage measurement; UPS; commercial AC line voltage harmonic distortion; immunity test results; local load leveling; multi-functional power converter; plural operational modes; power converter; quick power failure detector; uninterruptible power supply; uninterruptible secondary battery system; voltage unbalance; Batteries; Circuits; Detectors; Harmonic distortion; Power supplies; Switches; System testing; Uninterruptible power systems; Universal Serial Bus; Voltage;
Conference_Titel :
Power Conversion Conference - Nagaoka 1997., Proceedings of the
Conference_Location :
Nagaoka
Print_ISBN :
0-7803-3823-5
DOI :
10.1109/PCCON.1997.645659
