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Using 3D reluctance network for design a three phase synchronous homopolar machine

This paper deals with the design of a three phase synchronous homopolar machine (SHM) by using the semi analytical method of reluctance modeling. This machine is constituted of two stators and a double massive rotor. The excitation coil is bound with the stator and placed between the two halves of the rotor. The different parts of the machine are represented by reluctance circuits. The reluctance network so developed is resolved by a Saber simulation. This allows finding the optimal dimensions of the machine, while satisfying the condition of an acceptable flux density value, less than 1.8 T in no load operating. Next, torque performances are deduced from reluctance network results. These results are compared with those computed with 3D Comsol finite elements.