Development of a voltage sag detection method for nonutility generation systems
Copyright policy )Development of a voltage sag detection method for nonutility generation systems
This paper deals with a new detection method based on three-phase vector operation for voltage sag. The detection method is applicable to a protection system using a high-speed interruption system which protects distributed generators and critical loads in a customer's facility. The algorithm and merits of this method are explained in detail. The detection characteristics are then analyzed using the ATP (Alternative Transients Program) and are confirmed using a real-time digital simulator, and it is shown that the method is useful for detecting voltage sag. © 2005 Wiley Periodicals, Inc. Electr Eng Jpn, 152(4): 34–41, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.20117
- Hitachi (Japan) Japan
critical load, system interconnection, 自家用発電設備, high speed circuit breaker, three-phase to two-phase transformation, non-utility generation facility, voltage sag, 瞬時電圧低下, 重要負荷, 高速遮断器, 三相二相変換, 系統連系
critical load, system interconnection, 自家用発電設備, high speed circuit breaker, three-phase to two-phase transformation, non-utility generation facility, voltage sag, 瞬時電圧低下, 重要負荷, 高速遮断器, 三相二相変換, 系統連系
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