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IJSTR >> Volume 7 - Issue 2, February 2018 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

Optimal Generator Design For Gearless Wind Turbine

[Full Text]



Jamal Hussain



wind turbine; optimal design ; generator; PMSG



Synchronous generators are being extensively used in Wind Turbine Generator Systems (WTGS) and have slightly better advantage over induction generator. There are different types of synchronous generators, but the multi-pole Permanent Magnet Synchronous Generator (PMSG) with specific configuration is conclusively shown in this research, to be a better option for most systems including gearless wind turbine. It offers better performance due to higher efficiency and requires less maintenance since it does not have rotor current and can be used without a gearbox, which also implies a reduction of the weight of the nacelle and a reduction of costs. Paper discusses a new method for design of cost-efficient generator which is suitable for a large number of systems especially wind turbines. It uses Permanent Magnet Synchronous Generator (PMSG) in a direct-driven topology. PMSGs are preferable for energy systems, where input power is always fluctuating like wind energy. A very unique configuration of Generator design has been chosen amongst various configurations. A simple prototype built on this research is capable of reaching 6.7% of Betz’s limit, but this generator can be easily scaled which will result in better extraction of wind energy to meet the requirements.



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