Authors : Eko Yohanes Setyawan, Choirul Soleh, Awan Uji Krismanto, Richard A.M. Napitupulu and Parulian Siagian
Abstract: In this study, a novel permanent magnet generator structure is proposed in order to facilitate implementation of the permanent magnet generator on small scale renewable energy-based power generation. Detail characteristic of an double axial flux permanent magnet generator is analyzed. The proposed generator structure consists of two-sided rotor which equipped with slots for placing permanent magnet. The stator side is comprising of three groups of coreless winding for realizing three phase output. Performances of the axial flux double permanent magnet generator are observed involving the output voltage, currents and power. Two experimental scenarios have been tested to monitor the performance of the generator. In first scenario, loading condition which represented by star connection of three bulbs of 25 W has been considered. The rotational speed of the tested generator in this scenario is 501.9 rpm. It was monitored that under those loading circumstance, three phase sinusoidal output voltages with frequency under 50 Hz have been monitored. Moreover, above 50 Hz operational frequency, the output voltage waveform slightly changes from sinusoidal to trapezoidal shapes. In second scenarios, the proposed generator is connected to the rectifier to form a DC system. The 45 W load has been considered in this DC scenario. Under DC system test, 152.2 V output DC voltage, 0.1614 A current and 24.976 W power have been monitored when the rotational speed of axial flux doble permanent magnet generator was 847.9 rpm.
Eko Yohanes Setyawan, Choirul Soleh, Awan Uji Krismanto, Richard A.M. Napitupulu and Parulian Siagian, 2021. Design and Performance Analysis of Double Axial Flux Permanent Magnet Generator. Journal of Engineering and Applied Sciences, 16: 47-53.