AbstrakPenggunaan energi surya sebagai sumber energi listrik memiliki beberapa kelemahan, seperti daya listrik yang dihasilkan oleh panel surya dipengaruhi oleh iradiasi sinar matahari, suhu lingkungan, dan sudut datang matahari. Hal ini menyebabkan daya yang dihasilkan akan mengalami fluktuasi. Maximum Power Point Tracking (MPPT) merupakan suatu metode untuk memaksimalkan daya keluaran yang dihasilkan oleh panel surya. Penelitian ini bertujuan untuk merancang sistem MPPT menggunakan rangkaian boost converter dengan algoritma Perturb and Observe. Pengujian sistem MPPT dilakukan dengan memvariasi nilai iradiasi dan beban, kemudian menganalisis daya keluaran panel surya tersebut, serta membandingkan daya keluaran sistem yang menggunakan MPPT dan tidak menggunakan MPPT terhadap perubahan beban. Sistem pencarian titik daya maksimum panel surya menggunakan rangkaian boost converter dengan algoritma Perturb and Observe telah berhasil direalisasikan. Daya maksimum yang dihasilkan sistem MPPT dengan variasi beban 39 Ω, 50 Ω, dan 100 Ω pada iradiasi 1092 W/m 2 dan suhu 29 o C adalah 29,32 W, sedangkan pada iradiasi 752 W/m 2 dan suhu 29 o C adalah 24,56 W. Sistem MPPT dapat mempertahankan nilai daya pada titik maksimalnya saat terjadi perubahan beban, sedangkan pada sistem yang tidak menggunakan MPPT nilai daya yang dihasilkan akan berubahubah sesuai dengan perubahan beban. AbstractThe use of solar energy as a source of electrical energy has several disadvantages. The electrical power produced by solar panels is affected by irradiation of sunlight, ambient temperature, and the angle of sunlight arrival. These factors are causing the resulting power fluctuated. Maximum Power Point Tracking (MPPT) is a technique to maximize the output of power generated by solar panel. This work aims to design an MPPT system using boost converter with Perturb and Observe algorithm. Several tests of MPPT system are carried out by varying the irradiation and load. Analysis is made for the output of power from the solar panel, and comparison the system with and without MPPT as the load changes. Searching system of the solar panel's maximum power point applying a boost converter with Perturb and Observe algorithm is succesfully realized. The maximum power generated by the system with MPPT with variation in load 39 Ω, 50 Ω, and 100 Ω for irradiation 1092 W/m 2 and a temperature 29 o C is 29.43 W, while for irradiation 752 W/m 2 and a temperature 29 o C, the maximum power is 24.56 W. The MPPT system is able to maintain the power value at its maximum point when the load changes, meanwhile for a system does not use MPPT, the values of the power generated change according to the load changes.
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