Analysis of an Axial Permanent Magnetic Bearing for 1MW Horizontal Axis Wind

Authors

  • Kriswanto Department of Mechanical Engineering, Universitas Negeri Semarang, Gd E9 Kampus Sekaran Gunungpati, Semarang, Indonesia
  • Rizqi Fitri Naryanto Department of Mechanical Engineering, Universitas Negeri Semarang, Gd E9 Kampus Sekaran Gunungpati, Semarang, Indonesia
  • Renaldy Prasdiansyah Department of Mechanical Engineering, Universitas Negeri Semarang, Gd E9 Kampus Sekaran Gunungpati, Semarang, Indonesia
  • Dony Hidayat Al-Janan Department of Mechanical Engineering, Universitas Negeri Semarang, Gd E9 Kampus Sekaran Gunungpati, Semarang, Indonesia
  • Widya Aryadi Department of Mechanical Engineering, Universitas Negeri Semarang, Gd E9 Kampus Sekaran Gunungpati, Semarang, Indonesia
  • Ahmad Roziqin Department of Mechanical Engineering, Universitas Negeri Semarang, Gd E9 Kampus Sekaran Gunungpati, Semarang, Indonesia
  • Samsudin Anis Department of Mechanical Engineering, Universitas Negeri Semarang, Gd E9 Kampus Sekaran Gunungpati, Semarang, Indonesia
  • Wirawan Sumbodo Department of Mechanical Engineering, Universitas Negeri Semarang, Gd E9 Kampus Sekaran Gunungpati, Semarang, Indonesia
  • Jamari Department of Mechanical Engineering, University of Diponegoro, Jl. Prof. Sudharto Kampus UNDIP Tembalang, Semarang 50275, Indonesia

DOI:

https://doi.org/10.37934/arfmts.94.1.172187

Keywords:

Bearing, permanent magnetic bearing, horizontal axis wind turbine, axial force

Abstract

One way to reduce maintenance costs while improving wind turbine efficiency is to replace mechanical bearings with permanent magnetic bearings. The permanent magnetic bearing is a free contact bearing in which the rotor is elevated from the stator by the magnet's repelling force. The purpose of this study is to analyze the variation of permanent magnet width and the gap distance between the rotor-stator magnets that can produce the magnetic axial force opposing the thrust force of 1MW horizontal axis wind turbines (HAWT). The method used in this study is a magnetic force simulation using finite element method by varying the magnet thickness, width of the gap, and displacement between the rotor-stator of the PMB model. The PMB model consists of rotor and stator magnets arranged in 3 layers with Nd2Fe14B type material with a magnetic flux density of 1.45 T. Variations in thickness of the rotor and stator magnets are 0.1; 0.15, respectively; 0.2 (m), while variations in the width of the magnetic gap are 4, 5, 6 (mm). The results of the study found that the displacement that produces an axial magnetic force that can support a thrust force of 199.5kN is the lowest in the PMB model with a magnetic thickness of 0.15m with a magnetic gap of 4mm, while the highest is at a magnetic thickness of 0.1m with a magnet gap of 6mm. The greater the thickness of the PMB axial magnet design, the greater the displacement that provides zero axial magnetic forces. Further, the maximum of the magnetic axial force is rise on with increasing magnet thickness.

Author Biographies

Kriswanto, Department of Mechanical Engineering, Universitas Negeri Semarang, Gd E9 Kampus Sekaran Gunungpati, Semarang, Indonesia

kriswanto@mail.unnes.ac.id

Rizqi Fitri Naryanto, Department of Mechanical Engineering, Universitas Negeri Semarang, Gd E9 Kampus Sekaran Gunungpati, Semarang, Indonesia

rizqi_fitri@mail.unnes.ac.id

Renaldy Prasdiansyah, Department of Mechanical Engineering, Universitas Negeri Semarang, Gd E9 Kampus Sekaran Gunungpati, Semarang, Indonesia

renaldyprasd@students.unnes.ac.id

Dony Hidayat Al-Janan, Department of Mechanical Engineering, Universitas Negeri Semarang, Gd E9 Kampus Sekaran Gunungpati, Semarang, Indonesia

aljanan@mail.unnes.ac.id

Widya Aryadi, Department of Mechanical Engineering, Universitas Negeri Semarang, Gd E9 Kampus Sekaran Gunungpati, Semarang, Indonesia

widyaaryadi@mail.unnes.ac.id

Ahmad Roziqin, Department of Mechanical Engineering, Universitas Negeri Semarang, Gd E9 Kampus Sekaran Gunungpati, Semarang, Indonesia

ar_unnes@mail.unnes.ac.id

Samsudin Anis, Department of Mechanical Engineering, Universitas Negeri Semarang, Gd E9 Kampus Sekaran Gunungpati, Semarang, Indonesia

samsudin_anis@mail.unnes.ac.id

Wirawan Sumbodo, Department of Mechanical Engineering, Universitas Negeri Semarang, Gd E9 Kampus Sekaran Gunungpati, Semarang, Indonesia

wirawansumbodo@mail.unnes.ac.id

Jamari, Department of Mechanical Engineering, University of Diponegoro, Jl. Prof. Sudharto Kampus UNDIP Tembalang, Semarang 50275, Indonesia

j.jamari@gmail.com

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Published

2022-04-11

How to Cite

Kriswanto, Rizqi Fitri Naryanto, Renaldy Prasdiansyah, Dony Hidayat Al-Janan, Widya Aryadi, Ahmad Roziqin, Samsudin Anis, Wirawan Sumbodo, & Jamari. (2022). Analysis of an Axial Permanent Magnetic Bearing for 1MW Horizontal Axis Wind. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 94(1), 172–187. https://doi.org/10.37934/arfmts.94.1.172187

Issue

Vol. 94 No. 1: June (2022)

Section

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