Abstract
Solar panels are a renewable energy power plant that uses sunlight as its main energy source. The power generated by solar panels are determined by the size of the solar panels, solar radiation and temperature. The power of the solar panels is also determined by the output voltage of the solar panels. To get the maximum output power at any time, it is necessary to adjust the output voltage of the solar panel. This study proposes controlling the maximum output power of solar panels, also known as maximum power point tracking (MPPT) by adjusting the output voltage of the solar panels using a buck converter. The buck converter output voltage regulation at the maximum power point of the solar panel is designed with the Perturbation and Observation (PO) algorithm which is implemented using an Arduino Mega 2560. This MPPT control system is applied to 4x50 Watt-Peak (WP) solar panels which are connected in parallel. The experimental results show that the proposed MPPT control system with the PO algorithm has worked well as expected. This can be seen from the output power generated by the solar panels already around the maximum power point at any change in solar radiation and temperature.
Highlights
Abstrak— Panel surya adalah salah satu pembangkit listrik energi terbarukan yang menggunakan cahaya matahari sebagai sumber energi utamanya
This study proposes controlling the maximum output power of solar panels, also known as maximum power point tracking (MPPT) by adjusting the output voltage of the solar panels using a buck converter
Staf pengajar pada jurusan teknik elektro FT UNP sejak tahun 2006 sampai sekarang
Summary
Selain radiasi cahaya matahari dan temperatur, daya output panel surya ini juga dipengaruhi oleh tegangan keluaran panel surya. Dengan mengatur tegangan keluaran panel surya kita dapat mengoperasikan panel surya pada titik daya maksimum. Pengaturan tegangan keluaran pada titik daya maksimum panel surya umumnya dilakukan menggunakan konverter dc-dc, seperti konverter buck, boost, buck boost, sepic dan sebagainya [4]-[5]. Sistem MPPT yang diusulkan dalam penelitian ini dirancang dengan menggunakan konverter buck. Pengaturan tegangan keluaran pada titik daya maksimum panel surya dapat dilakukan dengan mengatur duty cycle switch konverter buck. Pencarian duty cycle switch konverter untuk MPPT panel surya ini biasanya menggunakan algoritma MPPT. Penelitian ini mengusulkan algoritma PO untuk mengatur tegangan keluaran konverter buck pada sistem kendali MPPT panel surya. Sistem kendali MPPT yang diusulkan akan diterapkan pada panel surya 50 WP yang dipasang secara parallel sebanyak empat buah
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