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Design and analysis of tubular permanent magnetic linear generator with 120° phase belt toroidal windings
- Source :
- COMPEL - The international journal for computation and mathematics in electrical and electronic engineering. 40:783-801
- Publication Year :
- 2021
- Publisher :
- Emerald, 2021.
-
Abstract
- Purpose To improve the power density and generation efficiency of the tubular permanent magnetic linear generators (TPMLGs) under realistic sea-stator condition, a TPMLG with 120° phase belt toroidal windings (120°-TPMLG) for wave energy conversion is proposed in this paper. Design/methodology/approach First, the structure of the 120°-TPMLG is introduced and its operation principle is analyzed. Second, the design process of the 120°-TPMLG is described. Meanwhile, the finite-element models of the 120°-TPMLG and the TPMLG with traditional fractional pitch windings (T-TPMLG) are established based on the similar overall dimensions. Then, the electromagnetic characteristics of the 120°-TPMLG are analyzed, such as air gap flux density, back electromotive force and load voltage. Finally, a comparative analysis of the magnetic flux density, flux linkage, load and no-load performance of the two generators are conducted. Findings The result shows that the 120°-TPMLG has higher power density and generation efficiency than the T-TPMLG. Originality/value This paper proposes a TPMLG with 120° phase belt toroidal windings (120°-TPMLG) to improve the power density and generation efficiency.
Details
- ISSN :
- 03321649
- Volume :
- 40
- Database :
- OpenAIRE
- Journal :
- COMPEL - The international journal for computation and mathematics in electrical and electronic engineering
- Accession number :
- edsair.doi...........75e1236725550859e4f8800f38f04801
- Full Text :
- https://doi.org/10.1108/compel-08-2020-0289