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PENGARUH HARMONIK TERHADAP TEGANGAN KELUARAN PROTOTIP GENERATOR MAGNET PERMANEN KECEPATAN RENDAH Irasari, Pudji; Fitriana, -
Teknologi Indonesia Vol 32, No 1 (2009)
Publisher : LIPI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jti.v32i1.49

Abstract

This paper discusses harmonic content in the generator prototype of 1035W, 220V, 3 phase, 333 rpm with the shifting of permanent magnet segment of 15,7 mm. Magnetomotive Force (MMF) caused by stator current is analyzed using Fourier series to obtain harmonics in load condition. Only induction voltage generated by permanent magnet that is taken into consideration of no-load harmonics. Harmonic spectrums are presented in the form of Total Harmonic Distortion (THD) versus. harmonic number. The influence of the highest THD spectrum to the waveform of output phase voltage is analyzed. Theoritical analyses and experimental measurement results of harmonic spectrums and output phase voltage waveform show the similar pattern. The difference of the output phase voltage peak is estimated due to the exceedingly low value of parameter Bm.
OPTIMASI KEMIRINGAN MAGNET PADA GENERATOR MAGNET PERMANEN KECEPATAN RENDAH FLUKS RADIAL Irasari, Pudji; Kasim, Muhammad; Fitriana, -
Teknologi Indonesia Vol 33, No 1 (2010)
Publisher : LIPI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jti.v33i1.13

Abstract

Optimization of magnet skewing of 1 kW, 3 phase, 300 rpm permanent magnet generator has been conducted in this research. The optimization is carried out by simulating some position of the rotor magnet skewing (x). The defi nition of skewing in this experiment is the outer line of one pole that is appear due to the shifting of two magnet segments that forming the pole. The three skewing position that is analyzed are x1 = 16 mm, x2 = 21 mm, x3 = 25,6 mm. Those skewing positions result in different harmonic distortion (HD) and EMF voltage waveform. The experimental validation shows that the best characteristic is obtained at skewing of x = 21 mm with HD = 11.9% and has the most sinusoidal EMF voltage waveform.
Co-Authors Muhammad Kasim Pudji Irasari