Experimental evaluation of performance for micro wind turbines by using permanent magnets

Year 2018, Volume: 10 Issue: 2, 60 - 68, 29.06.2018

Murat Ari , Hayati Mamur

https://doi.org/10.29137/umagd.349649

Abstract

Permanent
magnet synchronous generators with interior rotor (IR-PMSGs) have been widely
preferred in micro wind turbines (MWTs). Customers demand high output power of
the MWTs. Therefore, in this study, performance analyses and optimizations of
two IR-PMSG rotors were practically carried out to increase the output power of
the MWTs by employing N35 and N42 Neodymium-Iron-Boron (NdFeB) permanent
magnets (PMs) with same geometry used on IR-PMSG rotor surfaces. For this
purpose, two IR-PMSG rotors were designed with same geometry and applied to a
pole shifting reduction technique to decrease their cogging torque on the
IR-PMSGs as well. According to the obtained results, comparing the performances
of the IR-PMSGs with both N35 and N42 NdFeB PMs on a MWT with regards to their
power coefficients, an increase of 18.6% in power coefficient of the IR-PMSG
with N42 NdFeB PMs was calculated.

Keywords

performance evaluation, permanent magnet, permanent magnet synchronous generator, micro wind turbine, wind energy

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