Torque Studies of 6 Slot-7 Pole Motor for Hybrid Motor

Hybrid excitation machines (HEMs) that consist of permanent magnet (PM) and field excitation coil (FEC) as their main flux sources has several attractive features compared to interior permanent magnet synchronous machines (IPMSM) conventionally employed in hybrid electric vehicles (HEVs). Hybrid excitation flux switching machines (HEFSM) is one type of HEMs. This is to decrease the PM size in a HEFSM so that the cost of the machine can be reduced. By reducing the size of PM, the torque and the power of the machine will be slightly different from the original PM size. The torque is almost the same as the original sized PM but the size is successfully reduced