Cogging torque reduction in axial flux machines for small wind turbines

Min Fu Hsieh, D. G. Dorrell, Yu Han Yeh, Samsul Ekram

研究成果: Paper

12 引文 斯高帕斯(Scopus)

摘要

This paper presents a technique for cogging torque reduction in an axial-flux permanent-magnet (PM) generator suitable for use in a small wind turbine. These machines can be compact and have high power density; they are axially short with larger diameter which makes then very suitable for a wind turbine. The inherent cogging torque can cause problems during turbine start-up and cut-in. In this paper, a turbine is characterized via the measurement in a wind tunnel. The characteristics are then used to determine the specification for the generator. A method called "hybrid skew" is proposed for cogging torque reduction. 3-D finite element analysis is applied to evaluate the method and a 88 % reduction of peak cogging torque was obtained when combined with another known technique. This significantly improves the turbine performance at low start-up speed while maintaining high power density. The technique can reduce manufacturing confusion in N/S pole placement and allow a simple magnet shape for lower cost manufacturing.

原文English
頁面4435-4439
頁數5
DOIs
出版狀態Published - 2009 十二月 1
事件35th Annual Conference of the IEEE Industrial Electronics Society, IECON 2009 - Porto, Portugal
持續時間: 2009 十一月 32009 十一月 5

Other

Other35th Annual Conference of the IEEE Industrial Electronics Society, IECON 2009
國家Portugal
城市Porto
期間09-11-0309-11-05

    指紋

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

引用此

Hsieh, M. F., Dorrell, D. G., Yeh, Y. H., & Ekram, S. (2009). Cogging torque reduction in axial flux machines for small wind turbines. 4435-4439. 論文發表於 35th Annual Conference of the IEEE Industrial Electronics Society, IECON 2009, Porto, Portugal. https://doi.org/10.1109/IECON.2009.5414896