The United States' Amanda Anisimova advanced to her first Wimbledon semifinal on Tuesday, and celebrated with her nephew on ...

Speed-torque characteristics of brushless DC motors with trapezoidal and sinusoidal back electromotive force (EMF) based on two devices conducted drive method are analyzed separately. A back EMF ...

This paper presents an improved speed observer based on super-twisting algorithm (STA) for the standalone brushless doubly-fed induction generator (BDFIG)-dc system. The conventional observer utilizes ...