Comparative Analysis of PM and Non-PM Design Options for Small-Scale Wind Generators

For small-scale wind generators to operate efficiently in remote and residential areas, careful consideration must be given to the selection of the generator topology. The purpose of this study is to conduct an in-depth comparison of various design options available for wind generators. These designs include a permanent magnet vernier generator (PMVG), a permanent magnet synchronous generator (PMSG), and a wound-rotor synchronous generator (WRSG). The study thoroughly evaluates various performance aspects, such as cost, efficiency, torque density, power factor, and ripple torque, to help make an informed decision when choosing the most appropriate generator structure for small-scale wind power applications. Evaluation of the designs is validated by comparing two-dimensional finite element results. The findings of this study provide valuable guidance in choosing a generator that is both high-performing and cost-effective for small-scale wind power generation.