Longitudinal End Effects in a Linear Wave Power Generator
Even though the magnetic circuit of a linear electric machine is very similar to a rotating electric machine, they diverge in one fundamental property. The linear generator is open in both ends, i.e., the magnetic circuit is non-symmetric. This paper investigates and discusses the drawbacks of this...
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MDPI AG
2020-01-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/2/327 |
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doaj-9440242671af450396fc7085efdaa8fa2020-11-25T02:13:32ZengMDPI AGEnergies1996-10732020-01-0113232710.3390/en13020327en13020327Longitudinal End Effects in a Linear Wave Power GeneratorBoel Ekergård0Mats Leijon1Department of Industrial Economics, Electrical and Mechanical Engineering, University West, 461 86 Trollhättan, SwedenSwedish Centre for Renewable Electric Energy Conversion, Department on Engineering Sciences, Uppsala University, 751 21 Uppsala, SwedenEven though the magnetic circuit of a linear electric machine is very similar to a rotating electric machine, they diverge in one fundamental property. The linear generator is open in both ends, i.e., the magnetic circuit is non-symmetric. This paper investigates and discusses the drawbacks of this non-symmetric design in a linear permanent magnet generator, installed in a wave energy conversion system. A two-dimensional geometry has been utilized for the numerical calculations in a finite element method simulation tool. The results present an increased cogging force and significant core losses in the translator as consequences of the longitudinal ends in the machine.https://www.mdpi.com/1996-1073/13/2/327linear permanent magnet generatormagnetic analysiswave energy converter |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Boel Ekergård Mats Leijon |
| spellingShingle |
Boel Ekergård Mats Leijon Longitudinal End Effects in a Linear Wave Power Generator Energies linear permanent magnet generator magnetic analysis wave energy converter |
| author_facet |
Boel Ekergård Mats Leijon |
| author_sort |
Boel Ekergård |
| title |
Longitudinal End Effects in a Linear Wave Power Generator |
| title_short |
Longitudinal End Effects in a Linear Wave Power Generator |
| title_full |
Longitudinal End Effects in a Linear Wave Power Generator |
| title_fullStr |
Longitudinal End Effects in a Linear Wave Power Generator |
| title_full_unstemmed |
Longitudinal End Effects in a Linear Wave Power Generator |
| title_sort |
longitudinal end effects in a linear wave power generator |
| publisher |
MDPI AG |
| series |
Energies |
| issn |
1996-1073 |
| publishDate |
2020-01-01 |
| description |
Even though the magnetic circuit of a linear electric machine is very similar to a rotating electric machine, they diverge in one fundamental property. The linear generator is open in both ends, i.e., the magnetic circuit is non-symmetric. This paper investigates and discusses the drawbacks of this non-symmetric design in a linear permanent magnet generator, installed in a wave energy conversion system. A two-dimensional geometry has been utilized for the numerical calculations in a finite element method simulation tool. The results present an increased cogging force and significant core losses in the translator as consequences of the longitudinal ends in the machine. |
| topic |
linear permanent magnet generator magnetic analysis wave energy converter |
| url |
https://www.mdpi.com/1996-1073/13/2/327 |
| work_keys_str_mv |
AT boelekergard longitudinalendeffectsinalinearwavepowergenerator AT matsleijon longitudinalendeffectsinalinearwavepowergenerator |
| _version_ |
1724904551052476416 |