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Maula Sukmawidjaja
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy

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Journal : Jurnal Teknik Elektro

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ELIMINASI HARMONIK GUNA PERBAIKAN BENTUK GELOMBANG KELUARAN TEGANGAN INVERTER Sukmawidjaja, Maula
Jurnal Teknik Elektro Vol 6, No 1 (2006)
Publisher : Jurnal Teknik Elektro

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Abstract

The output-voltage waveform of an inverter is non sinusoidal and in most applications thevoltage harmonics have a significant effect on the overall system performance. Theseharmonics may be reduced at the cost of increasing the complexity of the inverter circuit,and an economic decision must be made on the degee to which this should be done. The Twomost commonly used techniques for harmonic-reduction are presented in this paper, theseare harmonic reduction by Pulse-Width Modulation and Sinusoidal Pulse-WidthModulation.Keyword: harmonic-reduction, Pulse-Width Modulation, Sinusoidal Pulse-WidthModulation.
Metoda Langkah Demi Langkah Untuk Solusi Transien Rangkaian Listrik Sukmawidjaja, Maula
Jurnal Teknik Elektro Vol 5, No 2 (2006)
Publisher : Jurnal Teknik Elektro

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Many complex physical systems are described by differential equations for which a solutioncannot be determined in analytical form. However, techniques are available to obtainapproximate solutions of such differential equations, or sets of equations, by numericalmethods. Thus the solution of differential equations is another important phase in numericalanalysis. In general, methods of numerical integration employ a step-by-step process todetermine a series of values for each dependent variable corresponding to a selected set ofvalues of the independent variable. The usual procedure is to select values of theindependent variable at fixed interval. The accuracy of a solution by numerical integrationdepends both on the method chosen and the size of interval.Keyword: step-by-step, differential equations, numerical methods
PERHITUNGAN PROFIL TEGANGAN PADA SISTEM DISTRIBUSI MENGGUNAKAN MATRIX ADMITANSI DAN MATRIX IMPEDANSI BUS Sukmawidjaja, Maula
Jurnal Teknik Elektro Vol 7, No 2 (2008)
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A very important problem in the design and operation of a distribution system is thecalculation of the voltage profile within specified limits at various points in the system. Inthis text we shall develop methods by which we can calculate the voltage, current, and powerat any point in a distribution line provided we know these values at one point, usually at oneend of the line. The continued development of large, high-speed digital computers havebrought about a change in the relative importance of various techniques in the solution oflarge distribution networks. One of particular importance is the introduction of busadmittance and bus impedance matrices method which will prove to be very useful in thecalculation of the voltage profile in the distribution networks.Keywords: voltage profile, bus admittance, bus impedance, matrices
MENGURANGI HARMONISA PADA TRANSFORMATOR 3 FASA Irianto, Chaerul Gagarin; Sukmawidjaja, Maula; Wisnu, Aditya
Jurnal Teknik Elektro Vol 7, No 2 (2008)
Publisher : Jurnal Teknik Elektro

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Abstract

Consumption of the electronic devices has been increase in the late of twenty years recentlyand it will cause the problem which had been unexpected before. It will cause non sinusoidalcurrent, although it is supplied by sinusoidal voltage source. This current will interfere thehigh frequent component at power system distribution grid and then it called ”harmoniccurrent”. The harmonic current can cause a lot of trouble to the consumer even powerprovider as well. High cost operation, short lifetime any equipment as the most disadvantageif the harmonic current appear on electric power distribution system. There are manymethod to reduce the harmonic distortion. This papert will explain the use of Z transformerwith resonance arm filter to reduce harmonic distortion on the system.Keywords: Harmonic current, threephase transformer, Z transfor
Co-Authors Aditya Wisnu Budhi Nursulistyo Chaerul Gagarin Irianto Ilham Akbar Qeis Irdha