Abstract: Aiming at improving the speed regulation performance of permanent magnet synchronous motor (PMSM) under aperiodic and periodic disturbances, a variable rate supertwisting (VRST) sliding mode ...

National Highways has apologised for a technical error that meant variable speed cameras had been incorrectly detecting some drivers as speeding. The agency, which ...

Abstract: This article presents in-depth insights about the development and successful introduction in the field of the first direct ac/ac modular multilevel converter (MMC) as static frequency ...