Battery Recharging Issue for a Two-Power-Level Flywheel System
A novel battery recharging system for an all-electric driveline comprising a flywheel with a permanent magnet double wound synchronous machine (motor/generator) is presented. The double winding enables two voltage levels and two different power levels. This topology supersedes other all-electric dri...
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| Format: | Article |
| Language: | English |
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Wiley
2010-01-01
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| Series: | Journal of Electrical and Computer Engineering |
| Online Access: | http://dx.doi.org/10.1155/2010/470525 |
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| author | Janaína Gonçalves de Oliveira Hans Bernhoff |
| author_facet | Janaína Gonçalves de Oliveira Hans Bernhoff |
| author_sort | Janaína Gonçalves de Oliveira |
| collection | DOAJ |
| description | A novel battery recharging system for an all-electric driveline comprising a flywheel with a permanent magnet double wound synchronous machine (motor/generator) is presented. The double winding enables two voltage levels and two different power levels. This topology supersedes other all-electric drivelines. The battery operates in a low-power regime supplying the average power whereas the flywheel delivers and absorbs power peaks, which are up to a higher order of magnitude. The topology presents new challenges for the power conversion system, which is the focus of this investigation. The main challenge is the control of the power flow to the battery when the vehicle is parked despite the decay of the flywheel machine voltage; which is dependent on its charge state, that is, rotational speed.
The design and simulation of an unidirectional DC/DC buck/boost converter for a variable rotational speed flywheel is presented. Conventional power electronic converters are used in a new application, which can maintain a constant current or voltage on the battery side. Successful PI current control has been implemented and simulated, together with the complete closed loop system. |
| format | Article |
| id | doaj-art-16dc95c2ff8f45bf9d2d73fd0a3c5ec2 |
| institution | Kabale University |
| issn | 2090-0147 2090-0155 |
| language | English |
| publishDate | 2010-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Electrical and Computer Engineering |
| spelling | doaj-art-16dc95c2ff8f45bf9d2d73fd0a3c5ec22025-08-20T03:54:32ZengWileyJournal of Electrical and Computer Engineering2090-01472090-01552010-01-01201010.1155/2010/470525470525Battery Recharging Issue for a Two-Power-Level Flywheel SystemJanaína Gonçalves de Oliveira0Hans Bernhoff1Division for Electricity, Department of Engineering Sciences, Uppsala University, Box 534, 75121 Uppsala, SwedenDivision for Electricity, Department of Engineering Sciences, Uppsala University, Box 534, 75121 Uppsala, SwedenA novel battery recharging system for an all-electric driveline comprising a flywheel with a permanent magnet double wound synchronous machine (motor/generator) is presented. The double winding enables two voltage levels and two different power levels. This topology supersedes other all-electric drivelines. The battery operates in a low-power regime supplying the average power whereas the flywheel delivers and absorbs power peaks, which are up to a higher order of magnitude. The topology presents new challenges for the power conversion system, which is the focus of this investigation. The main challenge is the control of the power flow to the battery when the vehicle is parked despite the decay of the flywheel machine voltage; which is dependent on its charge state, that is, rotational speed. The design and simulation of an unidirectional DC/DC buck/boost converter for a variable rotational speed flywheel is presented. Conventional power electronic converters are used in a new application, which can maintain a constant current or voltage on the battery side. Successful PI current control has been implemented and simulated, together with the complete closed loop system.http://dx.doi.org/10.1155/2010/470525 |
| spellingShingle | Janaína Gonçalves de Oliveira Hans Bernhoff Battery Recharging Issue for a Two-Power-Level Flywheel System Journal of Electrical and Computer Engineering |
| title | Battery Recharging Issue for a Two-Power-Level Flywheel System |
| title_full | Battery Recharging Issue for a Two-Power-Level Flywheel System |
| title_fullStr | Battery Recharging Issue for a Two-Power-Level Flywheel System |
| title_full_unstemmed | Battery Recharging Issue for a Two-Power-Level Flywheel System |
| title_short | Battery Recharging Issue for a Two-Power-Level Flywheel System |
| title_sort | battery recharging issue for a two power level flywheel system |
| url | http://dx.doi.org/10.1155/2010/470525 |
| work_keys_str_mv | AT janainagoncalvesdeoliveira batteryrechargingissueforatwopowerlevelflywheelsystem AT hansbernhoff batteryrechargingissueforatwopowerlevelflywheelsystem |