Multiphase Interleaved Boost Converter Riak Rendah Berbasis Split Induktansi Dan Kapasitansi Bypass

Ikawanty, Beauty Anggraheny (2022) Multiphase Interleaved Boost Converter Riak Rendah Berbasis Split Induktansi Dan Kapasitansi Bypass. Doctoral thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Meningkatnya penggunaan energi terbarukan, berpengaruh pada pesatnya pemakaian teknologi konverter DC-DC. Kelemahan menggunakan boost konverter konvensional adalah memiliki riak arus tinggi. Saat riak arus input masuk ke sumber tegangan, switching noise akan menyebar ke rangkaian lain. Solusi dari permasalahan ini adalah menggunakan topologi multiphase konverter yang dapat menekan riak arus. Akan tetapi dengan menggunakan topologi multiphase yang konvensional/standar memiliki rugi-rugi daya yang besar, hal ini dikarenakan nilai induktor yang digunakan cenderung besar. Riak arus juga akan mengurangi efisiensi pada pembangkit listrik tenaga surya (PLTS).

Penelitian ini bertujuan untuk mendesain topologi baru konverter yaitu modifikasi konverter multiphase interleaved boost. Topologi yang digunakan adalah dengan modifikasi penambahan rangkaian filter berupa split induktor dan bypass kapasitor, sehingga dapat menekan riak arus input. Dari topologi ini didapatkan nilai induktor lebih kecil 50% dari rangkaian standar dan dapat mengurangi nilai disipasi daya rangkaian meskipun jumlah komponen bertambah. Rangkaian modifikasi topologi ini juga menggunakan metode penskalaran interleaved agar dapat mengurangi distribusi panas pada tiap switch. Metode pengujian pada penelitian ini menggunakan
rangkaian standar multiphase boost konverter 4-fasa, dan mengamati karakteristik serta kinerjanya melalui simulasi dan implementasi. Berdasarkan hasil simulasi didapatkan riak arus input pada rangkaian standar dan modifikasi multiphase interleaved boost konverter masing-masing sebesar 0,042% dan 0.0014%, sedangkan hasil implementasi riak arus input masing-masing memiliki nilai arus peak to peak 2,89 A dan 1.6 A. Meskipun pada rangkaian topologi baru ada penambahan jumlah komponen, tetapi nilai disipasi dayanya lebih rendah 1.92 W dibandingkan rangkaian standar. Pada pengujian hardware dengan beban penuh pada rangkaian standar dan modifikasi multiphase interleaved boost konverter didapatkan efisiensi masing-masing sebesar 79,52% dan 88,5%.
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The increasing use of renewable energy affects the rapid use of DC-DC converter technology. The disadvantage of using a conventional boost converter is its high current ripple.
When the input current ripples into the voltage source, the switching noise will spread to other circuits. The solution to this problem is to use a multiphase converter topology that can suppress current ripples. However, using a conventional/standard multiphase topology has significant power losses.
This is because the value of the inductor used tends to be significant. Ripple currents will also reduce efficiency in solar power plants (PLTS). This study aims to design a new converter topology, a modified multiphase interleaved boost converter. The topology used is by modifying the addition of a filter circuit in the form of a split inductor and a bypass capacitor so that it can suppress the input current ripple. From this topology, the inductor value is 50% smaller than the standard circuit and can reduce the value of the power dissipation of the circuit even though the number of components increases. This topology modification circuit also uses the interleaved scaling method to reduce the heat distribution on each switch. The test method in this study uses a standard multiphase boost converter 4-phase circuit and observes its characteristics and performance through simulation and implementation. Based on the simulation results, the input current ripple in the
standard circuit and the modified multiphase interleaved boost converter is 0,042% and 0.0014%, respectively, while the implementation of the input current ripple has a peak-to-peak current value of A and 1.6 A, respectively. Although there is an increase in the number of components in the new
topology circuit, the power dissipation value is 1.92 W lower than the standard circuit. In hardware testing with a full load on the standard circuit and modified multiphase interleaved boost converter, the efficiency is 79.52% and 88.5%, respectively.

Item Type:	Thesis (Doctoral)
Uncontrolled Keywords:	Multiphase Interleaved boost converter, riak arus input, switching noise, Tenaga Surya Multiphase Interleaved boost converterr, input current ripple, switching noise, solar cell
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7872 Electric current converters, Electric inverters.
Divisions:	Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20001-(S3) PhD Thesis
Depositing User:	Beauty Anggraheny Ikawanti
Date Deposited:	13 Feb 2023 08:58
Last Modified:	13 Feb 2023 08:58
URI:	http://repository.its.ac.id/id/eprint/96992

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