This paper is an investigation into the high inrush current effect that emerges during energizing of drivers different circuit types loaded by light-emitting-diode (LED) strips. Two driver were analyzed—a voltage stabilization (VS) utilizing a Zener diode, and (CS) type in form integrated (IC). Inrush waveforms calculated for various numbers LEDs. In frame study, analysis executed energized div...

Transformer differential protection may be of malfunction at the emergence of inrush current, and it will affect the normal operation of the transformer. So the paper puts forward a new application of wavelet energy spectrum entropy-neural network theory in transformer microcomputer protection, in which the multi-resolution analysis of wavelet transform and information entropy technology are co...

A simplified model of magnetic saturation characteristics is proposed in this paper for transient calculation of the electric networks including magnetizing branches. The model represents the magnetic saturation characteristics by the continuous function instead of the piecewise linear approximation. Based on the proposed model, an efficient transient algorithm is developed. The nonlinear diffe...

Abstract: This paper presents a seamless transition method for a droop-controlled inverter. The droop control is suitable to make the inverter work as a voltage source in both islanded and grid-connected modes, however, the transfer between theses modes can result in a big inrush current that may damage the system. The proposed method allows the droop-controlled inverter to improve the transien...