LAPSE:2020.0694
Published Article
LAPSE:2020.0694
Design and Experiment Analysis of a Direct-Drive Wave Energy Converter with a Linear Generator
Jing Zhang, Haitao Yu, Zhenchuan Shi
June 23, 2020
Coastal waves are an abundant nonpolluting and renewable energy source. A wave energy converter (WEC) must be designed for efficient and steady operation in highly energetic ocean environments. A direct-drive wave energy conversion (D-DWEC) system with a tubular permanent magnet linear generator (TPMLG) on a wind and solar photovoltaic complementary energy generation platform is proposed to improve the conversion efficiency and reduce the complexity and device volume of WECs. The operating principle of D-DWECs is introduced, and detailed analyses of the proposed D-DWEC’s floater system, wave force characteristics, and conversion efficiency conducted using computational fluid dynamics are presented. A TPMLG with an asymmetric slot structure is designed to increase the output electric power, and detailed analyses of the magnetic field distribution, detent force characteristics, and no-load and load performances conducted using finite element analysis are discussed. The TPMLG with an asymmetric slot, which produces the same power as the TPMLG with a symmetric slot, has one fifth detent force of the latter. An experiment system with a prototype of the TPMLG with a symmetric slot is used to test the simulation results. The experiment and analysis results agree well. Therefore, the proposed D-DWEC fulfills the requirements of WEC systems.
Keywords
Computational Fluid Dynamics, finite element analysis, tubular permanent magnet linear generator, wave energy conversion
Suggested Citation
Zhang J, Yu H, Shi Z. Design and Experiment Analysis of a Direct-Drive Wave Energy Converter with a Linear Generator. (2020). LAPSE:2020.0694
Author Affiliations
Zhang J: School of Electrical Engineering, Southeast University, Nanjing 210096, China; Department of Electrical Engineering, Jinling Institute of Technology, Nanjing 211169, China
Yu H: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Shi Z: School of Electrical Engineering, Southeast University, Nanjing 210096, China
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Journal Name
Energies
Volume
11
Issue
4
Article Number
E735
Year
2018
Publication Date
2018-03-23
Published Version
ISSN
1996-1073
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PII: en11040735, Publication Type: Journal Article
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LAPSE:2020.0694
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doi:10.3390/en11040735
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Jun 23, 2020
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Jun 23, 2020
 
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Original Submitter
Calvin Tsay
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