Electromagnetic Analysis and Experimental Testing of a Flux Focusing Wind Turbine Magnetic Gearbox

Autor:	Wesley B. Williams, David Barnett, Sina Modaresahmadi, Jonathan Z. Bird, J. Wright, Kang Li
Rok vydání:	2019
Předmět:	Physics Rotor (electric) Magnetic gear Torque density Energy Engineering and Power Technology Mechanical engineering Physics::Classical Physics Turbine law.invention law Magnet Eddy current Torque Torque ripple Electrical and Electronic Engineering
Zdroj:	IEEE Transactions on Energy Conversion. 34:1512-1521
ISSN:	1558-0059 0885-8969
Popis:	The electromagnetic design of the second stage of a 59:1 multistage magnetic gearbox for a wind turbine demonstrator is presented. 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 three-dimensional edge effects were encountered that greatly reduced the expect torque density of the second stage magnetic gear. Experimental testing of the multistage magnetic gear highlights unexpected problems associated with eddy current loss and torque ripple.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::57b760bc38a30aec1fdb9e9b9b906cd7 https://doi.org/10.1109/tec.2019.2911966 Zobrazit plný text záznamu