Comparison of FRPM Machines With Different Magnet Arrangements

Four flux reverse permanent magnet (FRPM) machines with different magnet arrangements are compared using a finite element analysis method. The influence of the magnet parameters on the electromagnetic performance of each machine is analyzed. The air gap flux density, induced electromotive force and electromagnetic torque of the four machines are compared and the maximum electromagnetic torque of each machine is obtained. The analyzed results show that the electromagnetic performances of the proposed three machine models are better than those of the conventional machine.