Deteksi Islanding Pada Photovoltaic Terhubung Grid Berbasis Transformasi Wavelet - Islanding Detection On Grid-Connected Photovoltaic Based On Wavelet Transformation

Vernandez, Aggie Brenda (2018) Deteksi Islanding Pada Photovoltaic Terhubung Grid Berbasis Transformasi Wavelet - Islanding Detection On Grid-Connected Photovoltaic Based On Wavelet Transformation. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Inverter current source terhubung grid membutuhkan metode kontrol daya ataupun arus agar dapat mensuplai daya dengan menyesuaikan kebutuhan daya pada grid. Penelitian ini menggunakan teknik kontrol arus pada sumbu dq dengan transformasi Clark-Park sehingga daya output inverter dapat dikontrol secara terpisah. Pemodelan photovoltaic sebagai sumber daya inverter memberikan transfer daya yang berubah-ubah sesuai kondisi iradiasi matahari. Dengan teknik kontrol arus yang digunakan pada inverter terbukti dapat mengatasi permasalahan perubahan iradiasi dengan menjaga konstan arus output inverter sesuai referensi. Inverter pada penelitian ini dilengkapi dengan algoritma anti-islanding menggunakan transformasi wavelet. Algoritma ini terbukti dapat mengenali kondisi islanding pada berbagai tipe beban dan dengan berbagai kemungkinan keseimbangan dan ketidakseimbangan daya inverter dengan daya beban saat islanding terjadi. Selain itu, algoritma yang dirancang terbukti tidak bekerja saat kondisi normal dengan skema perubahan daya inverter ke grid dan perubahan beban. ========================================================= The grid-connected current source inverter requires a power or current control method in order to supply power by adjusting the power requirements of the grid. This research uses current control technique on dq-axis by Clark-Park transformation so that the output power of the inverter can be controlled separately. Photovoltaic modeling as an inverter source provides a power transfer that varies according to the conditions of solar irradiation. The current control technique used in the inverter has been shown to overcome the irradiation problem by keeping the inverter output current remain constant according to the reference. The inverter in this study is equipped with anti-islanding algorithm using wavelet transformation. This algorithm has been proven to recognize islanding conditions in various types of loads and with various possibilities of equilibrium and unbalance of inverter power with load at islanding. In addition, the designed algorithm proved to be not working during normal conditions with the scheme of inverter power and load changes.

Item Type: Thesis (Masters)
Additional Information: RTE Ver d
Uncontrolled Keywords: inverter, islanding, photovoltaic, transformasi Clark-Park, wavelet, Clark-Park transformation, inverter, islanding, photovoltaic, wavelet
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1087 Photovoltaic power generation
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5102.9 Signal processing.
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7872 Electric current converters, Electric inverters.
Divisions: Faculty of Electrical Technology > Electrical Engineering > (S2) Master Theses
Depositing User: Aggie Brenda Vernandez
Date Deposited: 19 Dec 2018 03:20
Last Modified: 19 Dec 2018 03:20
URI: http://repository.its.ac.id/id/eprint/58992

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