A Split Translator Secondary Stator Permanent Magnet Linear Generator for Oceanic Wave Energy Conversion

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Journal Article
IEEE Transactions on Industrial Electronics, 2018, 65 (9), pp. 7600 - 7608
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© 1982-2012 IEEE. Almost all flux switching permanent magnet linear generators (FSPMLGs) and Vernier hybrid machines contain a heavy solid translator due to their design limitations for electricity generation from the oceanic waves. This paper presents the new design of an FSPMLG in which the translator weight is reduced and an additional static steel core is inserted inside the translator cavity to improve the magnetic flux linkage of the main stator. The generated voltage, current, power, efficiency, core loss, force ripples, and cogging force minimization of the proposed FSPMLG are presented. From the dynamic model of the oceanic wave, it is shown that the translator with lower mass could generate electricity more effectively. The special stator and translator sets have been optimized by using the genetic algorithm before they are used in the proposed FSPMLG. To analyze the performance and verify the feasibility of the new design of FSPMLG, finite element analysis is performed by using the commercial software package ANSYS/Ansoft.
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