Comparative Analysis and Experimental Verification of a Linear Tubular Generator for Wave Energy Conversion

Tao Xia, Haitao Yu, Zhenchuan Shi and Rong Guo
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Tao Xia: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Haitao Yu: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Zhenchuan Shi: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Rong Guo: School of Electrical Engineering, Southeast University, Nanjing 210096, China

Energies, 2018, vol. 11, issue 7, 1-16

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.

Keywords: wave energy conversion; linear generator; multilayer permanent magnets; interior machine (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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