2004 Volume 124 Issue 4 Pages 531-536
This paper deals with a new detection method based on 3-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. First, the algorithm and merits of this method are explained in detail. Secondly, the detection characteristics are 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.
The transactions of the Institute of Electrical Engineers of Japan.B
The Journal of the Institute of Electrical Engineers of Japan