We study the possibility to populate dark sector through a phase transition. will consider secluded sectors made of gauge theories, Randall-Sundrum scenarios and conformally coupled elementary particles. These have in common fact that action is approximately Weyl invariant, implying particle production due time dependent background strongly suppressed. In particular no significant takes place d...

This paper presents dynamic simulation and control of stand-alone doubly fed induction generator (DFIG) loaded with 3-phase motors (IMs). The study reveals that direct on-line starting large IMs causes a voltage sag across the terminals as current drawn reaches up to 8-9 times rated load current. Traditionally, this problem has tackled by oversizing or employment special starters, under pretext...