Identification of voltage sag source location using s and tt transformed disturbance power
来源期刊：中南大学学报(英文版)2013年第1期
论文作者：Hussain Shareef Azah Mohamed Ahmad Asrul Ibrahim
文章页码：83 - 97
Key words：power quality; voltage sag; s transform; tt transform; signal processing
Abstract: An alternative method was introduced for voltage sag source location based on S and TT transformed disturbance powers. It is done to avoid the wrong and inconclusive detection of conventional disturbance power method proposed in the literature. Unlike in the case of the traditional method, the proposed method first transforms the recorded voltage and current during the sag event to some special features before calculating the new version of disturbance powers. The effectiveness of the proposed method has been verified through simulation and actual data from an industrial power system. The results show that the presented method can correctly detect the location of voltage sag source.
Hussain Shareef, Azah Mohamed, Ahmad Asrul Ibrahim
(Department of Electrical, Electronics and Systems Engineering,
Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia,
43600 Bangi, Selangor, Malaysia)
Abstract:An alternative method was introduced for voltage sag source location based on S and TT transformed disturbance powers. It is done to avoid the wrong and inconclusive detection of conventional disturbance power method proposed in the literature. Unlike in the case of the traditional method, the proposed method first transforms the recorded voltage and current during the sag event to some special features before calculating the new version of disturbance powers. The effectiveness of the proposed method has been verified through simulation and actual data from an industrial power system. The results show that the presented method can correctly detect the location of voltage sag source.
Key words:power quality; voltage sag; s transform; tt transform; signal processing
