New Topology of Single-Phase Segmented Rotor Field Excitation Flux Switching Machine for High Density Air-Condition

Abstract

Various topologies of 3 phase and single phase Field Excitation Flux Switching Machines (FSMs) have been develop recently due to the advantages of veriable flux capability of DC Field Excitation coil located on the stator as well as robust single piece rotor structure suitable for high speed applications. However, the fundamantel principles of the develop machine with salient pole rotor, requires overlap winding between armature and FEC, creating the problems of high end coil, huge size of motor as well as high copper losses. Therefore, in this paper, a new topology of single phase segmented rotor FEFSM with 12S-6P configuration is presented with the advantage of non overlap armature and FEC windings, a smaller machine with low copper loss is designed. In this study, the principle of single phase 12S-6P with segmental is an investigated using 2D-FEA finite element analysis to validate the torque, speed and power characteristics. As conclusion, the proposed design is suitable for high density air-conditioner because 1kW power generated at 1.8Nm and the corresponding speed of 4977r/min.