This paper deals with modeling and simulation technique of a Dynamic Voltage Restore (DVR). The DVR is a dynamic solution to protect sensitive loads against voltage sags and swells. The DVR can be implemented to protect a group of medium voltage or low voltage consumers. The new configuration of DVR has been proposed using improved d-q-0 controller technique. This study presents compensation of...

The three notorious earthquakes of 1999 in Turkey Kocaeli and Düzce and Taiwan Chi-Chi , having offered numerous examples of surface fault rupturing underneath civil engineering structures, prompted increased interest in the subject. This paper develops a nonlinear finite-element methodology to study dip–slip “normal” and “reverse” fault rupture propagation through sand. The procedure is verifi...

This paper proposed a new wavelet based method to identify inrush currents and to distinguish it from power system faults. The proposed algorithm extracts fault and inrush generated transient signals using DWT. Transient current signals at both sides of a transformer are firstly captured. The wavelet transform is a relatively new and powerful tool in the analysis of power transformer transient ...

The main objective of this study is estimating acceleration time history of 16 September 1978 Tabas earthquake incorporating the seismological/geological source-path and site model parameters by using finite-fault simulation approach. The method generalizes the stochastic ground-motion simulation technique, developed for point sources, to the case of finite faults. It subdivides the fault plane...

Photovoltaic (PV) ground faults have caused many fires in the U.S. and around the world. Recently, the American PV industry has discovered a blind spot in fuse-based ground fault detection that has spurred a transition to a number of alternatives traditionally used in European markets. This paper investigates the repeatability of one of these methods, residual current detection (RCD), using his...