抄録
The switched reluctance (SR) generator has various desirable features, including simple and solid structure, ease of maintenance, small moment of rotor inertia, and low cost, because it has no rotor windings and no permanent magnet. The solid structure would be advantageous for an ultra-high-speed generator such as a micro gas turbine generator, which the simple structure and small moment of inertia would suit a low-speed multipolar generator for use in wind turbine generators. However, the SR generator has not been put to practical use because an optimum design for the SR generator has not been established. In this paper, we present some considerations on the design of an SR generator and report an application for a variable-speed small wind turbine generator. We analyze the fundamental characteristics of the SR generator, conduct a quantitative analysis of the exciting circuit, and examine aspects of its variable-speed operation.
