A Comprehensive performance assessment of the integration of magnetic bearings with horizontal axis wind turbine

M. Fekry, Abdelfatah M. Mohamed, Mohamed Fanni and S. Yoshida

Mathematics and Computers in Simulation (MATCOM), 2019, vol. 156, issue C, 1-39

Abstract: This paper presents a comprehensive performance assessment for the use of Magnetic Bearing (MB) with Wind Turbine (WT). It is reported that this integration aims to improve the WT performance by eliminating fractional losses, mitigating vibration, reducing cut-in speed and prolonging the life span. However, there is no thorough studies regarding this integration in the literature to show in what extent the power generation will be affected in comparison with the use of conventional mechanical bearing (CB). This task constitutes the aim of this work. First, the main shaft of an existing conventional WT is redesigned to match the assembly with the MBs. Second, the design of two Radial Homopolar Pole Biased Hybrid Magnetic Bearings (RHPBHMB) and one Axial Active Magnetic Bearing (AAMB) is introduced. The MB design is analyzed using nonlinear magnetic circuit analysis and FEM. The MSC Marc software is employed to build 3D and 2D FEM models for the two radial and axial MBs respectively. Thirdly, the mathematical dynamic equations for the overall system is derived and an elaborated multi-disciplinary dynamic model is built using Simscape package. In addition, a robust intelligent TSK fuzzy Q-parameterization controller is synthesized to stabilize the RHPBHMB in order to achieve robust stability, overcome model nonlinearity and reject the step and sinusoidal imbalance disturbance at any rotational speed. Finally, an extensive comparison between the performance of the WT supported with Conventional mechanical Bearing (WT-CB) and the WT supported with Magnetic Bearing (WT-MB) is provided. The results show the ability of MB to defeat the disadvantages of the Conventional mechanical Bearing (CB), as well as, enhance the WT performance without decreasing the power generated.

Keywords: Wind turbine; Magnetic bearing design; FEM; Q-parameterization; Wind turbine performance (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S037847541830168X
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:matcom:v:156:y:2019:i:c:p:1-39

DOI: 10.1016/j.matcom.2018.06.011

Access Statistics for this article

Mathematics and Computers in Simulation (MATCOM) is currently edited by Robert Beauwens

More articles in Mathematics and Computers in Simulation (MATCOM) from Elsevier
Bibliographic data for series maintained by Catherine Liu ().