Abstract
To improve the power density and reliability of radial (RS-TLPMG) and quasi-Halbach (QH-TLPMG) magnetization tubular linear surface-mounted permanent magnet generators under realistic sea-state conditions, a novel tubular linear generator with multilayer interior permanent magnets (MI-TLPMG) for wave energy conversion is proposed and analyzed in this paper. Using finite element analysis (FEA), a comprehensive comparison of air gap flux density, flux linkage, back electromotive force (back-EMF), load, and no-load performance is investigated to verify the advantages of the proposed machine. The FEA results indicate that MI-LTPMG with a flux-concentrating effect has higher back-EMF, air gap magnetic flux density, flux linkage, and output power than do the other two machines. Finally, a prototype is manufactured and measured on the test platform and wave tank. The experiment and simulation results show a great agreement with each other.
Highlights
IntroductionTo overcome the challenges of fossil fuel exhaustion and environmental problems, various renewable and clean energy sources have been explored to enrich energy diversity in recent years
To overcome the challenges of fossil fuel exhaustion and environmental problems, various renewable and clean energy sources have been explored to enrich energy diversity in recent years.Among these sources, ocean waves have several advantages, such as substantial potential, greater predictability, and high energy density [1,2]
The rough size sizeof ofthe thegenerator generatorcan canbebedetermined determined above electromagnetic analysis, The rough byby thethe above electromagnetic analysis, but but the the precise model is analyzed by series of physical changes are applied to the translator and precise model is analyzed by finite element analysis (FEA)
Summary
To overcome the challenges of fossil fuel exhaustion and environmental problems, various renewable and clean energy sources have been explored to enrich energy diversity in recent years Among these sources, ocean waves have several advantages, such as substantial potential, greater predictability, and high energy density [1,2]. Some wave energy storage systems and control methods has been proposed to improve the power density and reduce the volume of WECs [18,19,20]. A novel tubular linear generator which consists of multilayer and interior permanent magnets (MI-TLPMG) is presented The purpose of this machine is to achieve high power density, high efficiency, and relatively small cogging force.
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