OPTIMASI BUCK CONVERTER PADA SOLAR TREE MENGGUNAKAN KONTROL LOGIKA FUZZY

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Denda Dewatama Mila Fauziyah Hari Kurnia Safitri

Abstract

Indonesia terletak di daerah tropis, potensi tenaga surya sangat besar (4,80 kWh/m2/hari) atau setara dengan 112.000 GWp, namun yang sudah dimanfaatkan baru sekitar 10 MWp. Jumlah ini merupakan gambaran potensi yang cukup besar dalam pengembangan energi surya di masa datang. Sehingga sel surya merupakan salah satu potensi yang dapat dikembangkan. Penempatan sel surya yang optimal sangat diperlukan agar dapat menghasilkan energy yang optimal. Penggunaan multi sel surya dan ditempatkan sesuai konfigurasi pohon (pola fibonacci) akan menghasilkan energy yang lebih optimal karena Pola Fibonacci membantu cabang dan daun di pohon untuk menghindari bayangan satu sama lain. Untuk menghasilkan tegangan yang konstan, tegangan keluaran dari sel surya di stabilkan dengan rangkaian buck converter dengan kontrol logika fuzzy. Arah hadap sel surya paling optimum bila dihapakan ke -200 (200 menghadap barat). Guna stabilitas pengisian aki digunakan buck konverter, dengan range tegangan input > 13 V 25 V, frekuensi 20 kHz, dan tegangan keluaran 10 V. Sinyal respon dari kontrol logika fuzzy sebagai berikut : Respon time (tr) = 1,1 detik, Peak time (tp) = 2.0 detik, % over shoot = 25%, Settling time (ts) = 3,4 detik, Error steady state (ess) = ± 4%.


 


Indonesia is located in the tropics, the potential of solar power is very large (4.80 kWh / m2 / day) or equivalent to 112,000 GWp, but which has been utilized only about 10 MWp. This number represents a considerable potential for future solar energy development. So that solar cells is one potential that can be developed. Optimal placement of solar cells is necessary to produce optimal energy. The use of multi-cell solar and placed according to the co nfiguration of the tree (Fibonacci pattern) will produce more optimal energy because Fibonacci Patterns help branches and leaves in trees to avoid shadowing each other. To produce a constant voltage, the output voltage of the solar cell is stabilized with a buck converter circuit with a fuzzy logic control. The direction of the solar cell face is most optimum when it is attained to -200 (200 facing west). The charging stability of the battery is used buck converter, with input voltage range> 13 V - 25 V, frequency 20 kHz, and output voltage 10 V. Signal response from fuzzy logic control as follows: Response time (tr) = 1.1 seconds, Peak time (tp) = 2.0 seconds,% over shoot = 25%, Settling time (ts) = 3.4 seconds, Error seady state (ess) = ± 4%.

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How to Cite
DEWATAMA, Denda; FAUZIYAH, Mila; SAFITRI, Hari Kurnia. OPTIMASI BUCK CONVERTER PADA SOLAR TREE MENGGUNAKAN KONTROL LOGIKA FUZZY. JURNAL ELTEK, [S.l.], v. 15, n. 2, p. 36-51, oct. 2017. ISSN 2355-0740. Available at: <https://jraam.polinema.ac.id/index.php/eltek/article/view/117>. Date accessed: 17 sep. 2021.
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