Permanent Magnet Reluctance Generator

Maintenance and rare metal free generator

Overview

　This invention is for a permanent magnet reluctance generator(PMRG) employing the ferrite magnet instead of the rare-earth magnet, which has almost the same output power and efficiency in comparison with the one employed rare-earth magnet in spite of lower cost.

　The optimum shape for the rotor pole-tip was designed to reduce torque ripple, which enables noiseless running.

Features・Outstandings

Product Application

・Water turbine generation
・Wind turbine generation
・Ultrahigh-speed generation (e.g. Micro gas turbine)

Related Works

[1] K.Nakamura et. al(2010)., Stator-Permanent-Magnet Reluctance Generator using Ferrite Magnet for Small-Scale Renewable Energy Generation
[2] K.nakamura et. Al(2012)., Super-multipolar permanent magnet reluctance generator designed for small-scale wind-turbine generation

IP Data

IP No.　 ： US9,018,815, CN200980158702.X, JP5413919
Inventor ： NAKAMURA Kenji, ICHINOKURA Osamu
keyword ： Measurement, Machine, Control