Design Optimization of a Reluctance Lead Screw for Wave Energy Conversion

Tian Tian, Weimin Wu, Jiacheng Jiang, Lixun Zhu, Kaiyuan Lu and Frede Blaabjerg
Additional contact information
Tian Tian: Department of Logistics Engineering, Shanghai Maritime University, Shanghai 201306, China
Weimin Wu: Department of Logistics Engineering, Shanghai Maritime University, Shanghai 201306, China
Jiacheng Jiang: Department of Logistics Engineering, Shanghai Maritime University, Shanghai 201306, China
Lixun Zhu: Department of Logistics Engineering, Shanghai Maritime University, Shanghai 201306, China
Kaiyuan Lu: Department of Energy Technology, Aalborg University, DK-9220 Aalborg, Denmark
Frede Blaabjerg: Department of Energy Technology, Aalborg University, DK-9220 Aalborg, Denmark

Energies, 2020, vol. 13, issue 20, 1-12

Abstract: A reluctance lead screw (RLS) is proposed in this paper which consists of a rotor and a translator, forming a magnetic device that is able to transfer low-speed linear motion into high-speed rotational motion. Permanent magnets (PMs) are only installed in the rotor, making it more suitable for long-stroke applications. The design aspects are assessed by finite element analysis (FEA) and the performance is evaluated. In addition, the thrust force per magnet volume is presented for evaluating the utilization rate of the PMs. The simulation results show that RLS has an advantage in terms of the PM utilization rate. A new method for realizing spiral magnets has also been developed which can not only reduce the manufacturing difficulties, but also ease the installation work. Finally, based on the simulations and analyses, two RLS prototypes designed for wave energy converters (WECs) are presented to show the potential applications of this novel topology.

Keywords: finite element analysis (FEA); linear actuator; magnetic lead screw (MLS); reluctance lead screw (RLS); wave energy converter (WEC) (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: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/13/20/5388/pdf (application/pdf)
https://www.mdpi.com/1996-1073/13/20/5388/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:13:y:2020:i:20:p:5388-:d:428625

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().