TY - JOUR AB - This paper presents method to discriminate between transient voltage stability and voltage sag. The discrete wavelet transform (WT) is a powerful tool in the analysis of the transient phenomena in power systems because of its ability to extract information in both the time and frequency domain. This paper introduces a technique for accurate discrimination by combining WTs with neural networks (NNs). The WT is first applied to decompose the signals into a series of detailed wavelet components. The wavelet components are calculated and then employed to train a NN. The simulated results presented clearly show that the proposed technique can accurately discriminate between transient voltage stability and voltage sag in power system protection. VL - 23 IS - 2 SN - 0332-1649 DO - 10.1108/03321640410510569 UR - https://doi.org/10.1108/03321640410510569 AU - Jurado Francisco AU - Ramón Saenz José PY - 2004 Y1 - 2004/01/01 TI - Detecting transient voltage stability and voltage sag T2 - COMPEL - The international journal for computation and mathematics in electrical and electronic engineering PB - Emerald Group Publishing Limited SP - 392 EP - 409 Y2 - 2024/04/24 ER -