Comparison of Axial Magnetic Gears Based on Magnetic Composition Topology Differences

Sudirman Syam, Sudjito Soeparman, Denny Widhiyanuriawan and Slamet Wahyudi
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Sudirman Syam: Electrical Engineering Department, Science and Engineering Faculty, University of Nusa Cendana, Kupang 85228, Indonesia
Sudjito Soeparman: Mechanical Engineering Department, Engineering Faculty, Brawijaya University, Malang 65145, Indonesia
Denny Widhiyanuriawan: Mechanical Engineering Department, Engineering Faculty, Brawijaya University, Malang 65145, Indonesia
Slamet Wahyudi: Mechanical Engineering Department, Engineering Faculty, Brawijaya University, Malang 65145, Indonesia

Energies, 2018, vol. 11, issue 5, 1-15

Abstract: This paper proposes a design and implementation of an axial type magnetic gear (MG) based on the composition of the magnetic arrangement. We report a quantitative comparison of two MG topologies with rectangular magnets arranged in series and parallel. Increased magnetic flux is done through magnetic circuit analysis and electrical circuit approach. Testing is done by using the rotation of a DC motor drive from 300–2600 rpm with a DC generator under load conditions. Measurement of load current and generator output power for both axial MG topologies are taken and analyzed. The results showed that the performance of an axial MG with the rectangular magnetic arrangement in parallel is better than that of a series arrangement. Based on the measured loading current of the two axial MG topologies, at generator rotation between 300–1300 rpm with 100, 200, and 300 Ω resistance loads show the same load current. Conversely, after a DC generator rotation approaches ½ of the maximum rotation (1300–2600 rpm) there is a significant increase in load current fluctuations. That is, with an increase of load currents occurring, the parallel magnetic topology shows an increase in load torque due to an increase of magnetic flux in the gear train magnets of the MG.

Keywords: parallel axis; NdFeB magnetic; design; electrical circuit (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
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