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A switched reluctance generator (SRG) has desirable features including simple construction, high reliability, and low cost. Furthermore, it is suitable for use as an ultra-high-speed generator because its rotor is made of iron steel without any windings or permanent magnets. However, the SRG system is complicated, because it requires detection of the rotor position angle and excitation power for the excitation circuit of the stator winding. For this reason, it has not been used in practical applications. We previously proposed a new reluctance generator (RG) that has permanent magnets in the stator yoke. The experimental results obtained with a trial single-phase RG show that the proposed RG has very simple construction and high performance. However, the single-phase RG has the disadvantages of large leakage flux and cogging torque. In this paper, we evaluate a three-phase RG with permanent magnets buried in the stator core by simulation and experiments.

Three-Phase Reluctance Generator Using Stator Core with Permanent Magnet