| dc.contributor.advisor | Nilssen, Robert | nb_NO |
| dc.contributor.author | Faleide, Rolv Marius | nb_NO |
| dc.date.accessioned | 2014-12-19T13:51:25Z | |
| dc.date.available | 2014-12-19T13:51:25Z | |
| dc.date.created | 2010-09-04 | nb_NO |
| dc.date.issued | 2009 | nb_NO |
| dc.identifier | 348882 | nb_NO |
| dc.identifier | ntnudaim:4844 | nb_NO |
| dc.identifier.uri | http://hdl.handle.net/11250/256642 | |
| dc.description.abstract | A direct driven permanent magnet synchronous machine with concentrated windings is optimized with respect to system efficiency. The goal is to win the European Shell Eco Marathon Urban Concept group using a hydrogen fuel cell and an electric motor. Considerations such as on-board energy storage, a freewheel for coasting, winding design and connections are taken into account. The result is a machine with higher efficiency at all loads and an optimal operation point at cruising speed, obtaining 93% efficiency. Considerations for further improvements in both power electronics and motor design are presented, along with a new philosophy for making very slow PMSM CW machines with multiple phases, both yielding higher efficiency and smaller requirements to structural stiffness. | nb_NO |
| dc.language | eng | nb_NO |
| dc.publisher | Institutt for elkraftteknikk | nb_NO |
| dc.subject | ntnudaim | no_NO |
| dc.subject | SIE5 energi og miljø | no_NO |
| dc.subject | Elektrisk energiteknikk | no_NO |
| dc.title | Shell Eco Marathon: Electric Drive for World's Most Fuel Efficient Car | nb_NO |
| dc.type | Master thesis | nb_NO |
| dc.source.pagenumber | 10 | nb_NO |
| dc.contributor.department | Norges teknisk-naturvitenskapelige universitet, Fakultet for informasjonsteknologi, matematikk og elektroteknikk, Institutt for elkraftteknikk | nb_NO |
