Promising applications of neodymium boron Iron magnets in electrical machines

Neodymium Boron Iron (NdBFe) magnets have high energy product with suitable magnetic and physical properties for applications in electrical machines. The design aspects of permanent magnet machines using NdBFe magnets are presented. The ranges of applications cover both generators and motors up to 200 kW ratings. The exciting combination with micro-computers and power electronics makes the permanent magnet motors truly attractive for drives requiring smooth synchronous operation, constant torque and constant power characteristics.