Reduksi Total Harmonic Distortion Pada Output Permanent Magnet Generator Menggunakan Filter Pasif

Wibawa, Anisa Sutifany Anggi (2025) Reduksi Total Harmonic Distortion Pada Output Permanent Magnet Generator Menggunakan Filter Pasif. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penggunaan motor dalam sistem kelistrikan dapat menimbulkan gangguan harmonisa yang berdampak pada performa sistem secara keseluruhan. Beberapa metode yang umum digunakan untuk mereduksi harmonisa adalah filter aktif dan filter pasif. Dalam penelitian ini, digunakan filter pasif LC yang dirancang khusus untuk mereduksi harmonisa orde ke 3 pada frekuensi 150 Hz. Filter ini diterapkan pada sistem flywheel generator dengan beban utama motor 3.75 kW serta beberapa variasi beban lainnya. Nilai induktansi dan kapasitansi ditentukan melalui perhitungan manual, kemudian diuji melalui simulasi dan pengukuran langsung. Hasil pengujian menunjukkan bahwa pada beban motor 3.75 kW, filter berhasil menurunkan nilai Total Harmonic Distortion orde ke 3 dari 8.0% menjadi 0.6%, dan pada sisi tegangan dari 20.17% menjadi 1.73%. Penurunan harmonisa juga terjadi pada motor 3.0 kW, 0.55 kW, 0.37 kW, dan 0.18 kW. Sementara itu, pada beban lampu 300 W, nilai Total Harmonic Distortion tegangan tercatat sebesar 3.40%, yang masih berada di bawah ambang batas standar IEEE sebesar 5%. Berdasarkan hasil pengujian, filter pasif LC yang dirancang dapat mengurangi harmonisa orde ke 3 pada sistem flywheel generator dengan beban motor.
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The use of motors in electrical systems can generate harmonic disturbances that affect overall system performance. Several methods commonly used to reduce harmonics include active filters and passive filters. In this study, an LC passive filter was specifically designed to reduce 3rd-order harmonics at a frequency of 150 Hz. The filter was applied to a flywheel generator system with a main load of a 3.75 kW motor, along with several other load variations. The values of inductance and capacitance were determined through manual calculations, then tested through simulation and direct measurements. The test results showed that under a 3.75 kW motor load, the filter successfully reduced the 3rd-order Total Harmonic Distortion (THD) from 8.0% to 0.6%, and the voltage-side THD from 20.17% to 1.73%. Harmonic reductions also occurred on 3.0 kW, 0.55 kW, 0.37 kW, and 0.18 kW motors. Meanwhile, for a 300 W lamp load, the recorded voltage THD was 3.40%, which remains below the IEEE standard limit of 5%. Based on the test results, the designed LC passive filter is capable of reducing 3rd-order harmonics in flywheel generator systems with motor loads.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Filter LC, harmonisa, flywheel generator, motor 3.75 kW. LC filter, harmonics, flywheel generator, 3.75 kW motor.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1007 Electric power systems control
Divisions:	Faculty of Vocational > 36304-Automation Electronic Engineering
Depositing User:	Anisa Sutifany Anggi Wibawa
Date Deposited:	28 Jul 2025 06:51
Last Modified:	28 Jul 2025 06:51
URI:	http://repository.its.ac.id/id/eprint/122109

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