Filter Hibrid Terhubung Seri Tanpa Trafo untuk Pengurangan Distorsi Harmonisa pada Sistem Tenaga Listrik Industri

Windarko, Novie Ayub (2006) Filter Hibrid Terhubung Seri Tanpa Trafo untuk Pengurangan Distorsi Harmonisa pada Sistem Tenaga Listrik Industri. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pada tesis ini didesain filter hibrid tanpa trafo untuk mereduksi distorsi harmonisa akibat beban non-linier pada sistem tenaga listrik di industri. Filter hibrid terdiri dari filter pasif dan filter aktif. Keduanya dihubungkan seri dan filter dihubungkan paralel terhadap sistem tenaga. Penggunaan filter aktif pada topologi filter hybrid dapat meningkatkan kinerja filter meskipun rating filter aktif jauh lebih kecil dibandingkan rating filter pasif. Kontrol filter hibrid pada penelitian ini menggunakan transformasi abc-dq tanpa menggunakan PLL. Fungsi PLL digantikan dengan transformasi abc-αβ. Komponen αβ digunakan untuk menentukan besarnya nilai sinus dan cosinus pada transformasi abc-dq. Dengan tanpa PLL, kinerja transformasi abc-dq tidak terpengaruh oleh sumber tegangan dengan bentuk gelombang yang tidak ideal. Hasil simulasi menunjukkan kinerja filter hibrid lebih baik dibandingkan dengan filter pasif. Pada saat beban non-linier dibebani penuh, THD arus sumber sebesar 24,7% bisa diturunkan menjadi 4,8%. Hal ini memenuhi standar IEEE 519-1992 untuk peredaman harmonisa yang mensyaratkan THD arus sumber sebesar 5%.
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In this thesis, hybrid filter is designed without transformer to reduce the distortion of current harmonics caused by non-linear load in the Industrial Power system. Hybrid filter consists of passive filter and active filter. Both are connected in series and the filter is connected in parallel to power system. Active filter improves the hybrid filter performance although its rating is much smaller compared to the passive filter. In this thesis, the filter control uses the $abc\text{-}dq$ transformation without using PLL. PLL function is replaced by $abc\text{-}\alpha\beta$ transformation. $\alpha\beta$ component is used for calculating the sine and cosine values in $abc\text{-}dq$ transformation. Without PLL, performance of $abc\text{-}dq$ transformation is not affected by voltage source waveform which is not ideal caused by non-linear load. Results of simulation show that the performance of hybrid filter is better compared to the passive filter. At full load, THD of source current can be reduced from 24.7% to 4.8%. This meets the IEEE 519-1992 standard for harmonics requiring THD of source current to be below 5%.

Item Type:	Thesis (Masters)
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1007 Electric power systems control
Divisions:	Faculty of Electrical Technology > Electrical Engineering > 20101-(S2) Master Thesis
Depositing User:	magang .
Date Deposited:	30 Sep 2026 02:48
Last Modified:	30 Sep 2026 02:48
URI:	http://repository.its.ac.id/id/eprint/145064

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