Electromagnetic analysis and experimental testing of a flux focusing wind turbine magnetic gearbox
Abstract
The electromagnetic design of the second stage of a 59:1 multistage magnetic gearbox for a wind turbine demonstrator is presented here. The multistage series connected magnetic gearbox is composed of a 6.45:1 first stage and 9.14:1 second stage magnetic gear. The magnetic gears utilize a flux focusing spoke type rotor typology with a unique segmented fully laminated design. The electromagnetic impact of structural design changes on the second stage gearbox is considered with respect to torque density. Severe 3-D edge effects were encountered that greatly reduced the expect torque density of the stage 2 magnetic gear. Experimental testing of the multistage magnetic gear highlight unexpected problems associated with eddy current loss and torque ripple.
- Authors:
-
- Univ. of North Carolina, Charlotte, NC (United States)
- Portland State Univ., Portland, OR (United States). Lab. for Electromechanical Energy Conversion and Control
- Publication Date:
- Research Org.:
- Univ. of North Carolina, Charlotte, NC (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Wind Energy Technologies Office
- OSTI Identifier:
- 1505682
- Grant/Contract Number:
- EE0006801
- Resource Type:
- Accepted Manuscript
- Journal Name:
- IEEE Transactions on Energy Conversion
- Additional Journal Information:
- Journal Volume: 34; Journal Issue: 3; Journal ID: ISSN 0885-8969
- Publisher:
- IEEE
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 17 WIND ENERGY; gears; permanent magnet machines; magnetic flux density; magnetic forces; permanent magnets; torque
Citation Formats
Li, Kang, Modaresahmadi, Sina, Williams, Wesley, Bird, Jonathan, Wright, Jason, and Barnett, David. Electromagnetic analysis and experimental testing of a flux focusing wind turbine magnetic gearbox. United States: N. p., 2019.
Web. doi:10.1109/TEC.2019.2911966.
Li, Kang, Modaresahmadi, Sina, Williams, Wesley, Bird, Jonathan, Wright, Jason, & Barnett, David. Electromagnetic analysis and experimental testing of a flux focusing wind turbine magnetic gearbox. United States. https://doi.org/10.1109/TEC.2019.2911966
Li, Kang, Modaresahmadi, Sina, Williams, Wesley, Bird, Jonathan, Wright, Jason, and Barnett, David. Mon .
"Electromagnetic analysis and experimental testing of a flux focusing wind turbine magnetic gearbox". United States. https://doi.org/10.1109/TEC.2019.2911966. https://www.osti.gov/servlets/purl/1505682.
@article{osti_1505682,
title = {Electromagnetic analysis and experimental testing of a flux focusing wind turbine magnetic gearbox},
author = {Li, Kang and Modaresahmadi, Sina and Williams, Wesley and Bird, Jonathan and Wright, Jason and Barnett, David},
abstractNote = {The electromagnetic design of the second stage of a 59:1 multistage magnetic gearbox for a wind turbine demonstrator is presented here. The multistage series connected magnetic gearbox is composed of a 6.45:1 first stage and 9.14:1 second stage magnetic gear. The magnetic gears utilize a flux focusing spoke type rotor typology with a unique segmented fully laminated design. The electromagnetic impact of structural design changes on the second stage gearbox is considered with respect to torque density. Severe 3-D edge effects were encountered that greatly reduced the expect torque density of the stage 2 magnetic gear. Experimental testing of the multistage magnetic gear highlight unexpected problems associated with eddy current loss and torque ripple.},
doi = {10.1109/TEC.2019.2911966},
journal = {IEEE Transactions on Energy Conversion},
number = 3,
volume = 34,
place = {United States},
year = {Mon Apr 15 00:00:00 EDT 2019},
month = {Mon Apr 15 00:00:00 EDT 2019}
}
Web of Science