Syammary Naufal

Tun Hussein Onn University of Malaysia

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Radzali Othman

Technical University of Malaysia Malacca

Gandi Sugandi

National Research and Innovation Agency

Erwan Sulaiman

Tun Hussein Onn University of Malaysia

Abrar Ismardi

Telkom University

Zsi Zsi Meydwika Andwitri

Telkom University

Mahyuzie Jenal

Tun Hussein Onn University of Malaysia

Mohd Firdaus Mohd Ab Halim

Technical University of Malaysia Malacca

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Technical University of Malaysia Malacca

Tun Hussein Onn University of Malaysia

Universiti Sains Malaysia

National University of Malaysia

Telkom University

Hospital Universiti Sains Malaysia

National Research and Innovation Agency

National Nuclear Energy Agency of Indonesia

Bandung Institute of Technology

Indonesian Institute of Sciences

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Preliminary analysis of eddy current and iron loss in magnetic gear in electric vehicle

International Journal of Electrical and Computer Engineering (IJECE) (2022)

Mohd Firdaus Mohd Ab Halim Erwan Sulaiman Mahyuzie Jenal Radzali Othman Syammary Naufal

The inclusion of a high energy density permanent magnet into magnetic gear improves the machine's torque density. However, it also contributes to eddy current loss, especially in a high-speed application such in electric vehicle. In this paper, the losses from eddy current and iron loss are investigated on concentric magnetic gear (CMG). Torque multiplier (CMG) is designed with 8/3 gear ratio for this study. Iron loss and eddy current loss are compared and discussed. Based on this study, eddy current loss contributes to almost 96% of the total loss. This finding is hoped to direct the researcher to focus more on reducing loss associated with eddy current loss.

Torque density

Magnetic gear

Eddy current brake

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RANCANG BANGUN PEMANEN ENERGI VIBRASI ELEKTRODINAMIK BERBASIS MEMBRAN FR4 DENGAN MAGNET TETAP

Syammary Naufal

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Simulation and characterization of symmetrical planar spring FR4-based for Electrodynamic Vibration Energy Harvesting

Syammary Naufal Zsi Zsi Meydwika Andwitri Abrar Ismardi Gandi Sugandi

This paper discusses about vibration energy harvesting using electrodynamic method, where inertial mass (a magnet) moves relative to an idle conductor. An thin planar spring with material of FR4 is used as mechanical spring, an NdFeB magnet is used as an inertial mass, and bobbin-less coil is used as the conductor. The research discussed in this paper compares the maximum voltage and resonance frequency generated by the Electrodynamic Vibration Energy Harvesting (EVEH) device with an FR4 thin planar spring with the dimensio n of 25mm × 25mm, one of which uses two 14mm symmetrical cantilever arm, and the other uses four 7mm symmetrical cantilever arm. Finite Element Analysis (FEA) Comsol 4.3a simulation software is used to design the mechanical spring and EVEH device. Fabrication of the mechanical spring is done using laser cutting method and EVEH device characterization is done using a loudspeaker as vibration energy source. From the experiment, it is found that the two symmetrical cantilever EVEH generated a maximum voltage and resonance frequency of respectively 303 mV and 45 Hz with 0,5g acceleration then 423 mV and 49 Hz with 1g, while the four symmetrical cantilever EVEH generated 235 mV and 102 Hz with 0,5g then 350 mV and 113 Hz with 1g, where g = 9,8 m/s ² .

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10.1109/icitm.2017.7917911

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