Permanent Magnet Synchronous Generator Systems

In this book, EHV stands for electric hybrid vehicle. EHV constitutes an aggressive novel technology aimed at improving comfort, gas mileage, and environmental performance of road vehicles [1,2]. The degree of “electrification” in a vehicle may be defined by the electric fraction %E [3]: E P P el= + =Peak electric power Peak electric power peak ICE power el ICEP) ( )+ (7.1) For a mild hybrid car with battery soft-replenishing, %E is lower than 40% in town driving. It may reach up to 70% when the battery is replenished from the power grid daily (plug-in). %E becomes 100% for fully electric vehicles, with fuel cells or batteries or inertial batteries (flywheels) as the energy storage system.