Effect of core design on efficiency in wind power generation

Design and development of a small modular wind power generator was conducted based on the findings of the product dissection. The characteristics includes rare-earth permanent magnets and core-less coil. To obtain the most suitable design method, dynamic magnetic field analysis was conducted. To confirm the results by analysis, a wind tunnel experiment was performed. The analytical results were within less than 10% error from those of the experimental results. The analysis is considered to be a tool for investigating the most suitable design for a generator. The wind power generator that was designed, developed, and manufactured is reported.