Sembiring, Angela (2021) Analisis Perbandingan Metode MPPT Menggunakan Algoritma Perturb and Observe (P&O) Konvensional dan Modifikasi. Sarjana thesis, Universitas Brawijaya.
Abstract
Energi matahari adalah energi yang tidak habis pakai dan tidak menimbulkan polusi sehingga energi matahari merupakan solusi alternatif yang dapat menggantikan minyak, batu bara, dan lain sebagainya sebagai sumber listrik. Dengan menggunakan panel surya, energi matahari dapat dikonversi menjadi energi listrik. Namun, panel surya memiliki efiensi yang kecil jika dibandingkan dengan pembangkit listrik lainnya. Panel surya memiliki efiensi sebesar 18%. Untuk mengatasi masalah tersebut, dibutuhkan suatu sistem pencari daya maksimal. Sistem tersebut bertujuan untuk mencari titik optimal panel surya. Pencarian titik optimal panel surya dapat dengan menggunakan Maximum Power Point Tracker (MPPT). Pada penelitian ini, algoritma MPPT yang digunakan adalah algoritma perturb and observe (P&O). Algoritma MPPT ini akan diimplementasikan pada buck converter sehingga dapat mengendalikan panel surya dapat bekerja pada titik yang telah ditentukan. Namun, algoritma P&O konvensional tidak dapat melcakak titik maksimum panel surya saat terjadi perubahan iradiasi. Algoritma P&O modifikasi yaitu dengan penambahan parameter dI dan M dapat menjawab permasalahan tersebut. Berdasarkan analisis, gelombang daya keluaran yang dihasilkan algoritma P&O konvensional memiliki osilasi sedangkan pada algoritma P&O modifikasi tidak terdapat osilasi. Kedua algoritma ini memiliki efisiensi sebesar 87% yang mana lebih besar dari sistem tanpa MPPT.
English Abstract
The increasing electrical demand is increasing every year in Indonesia. This rise is inversely proportional to the ever-thinening energy source. Therefore, it needs an inexhaustible source of energy. One of the energy that's not going to run out is solar energy. Solar energy is one of the most renewable energies that can be converted into electrical energy. Conversion of solar energy into electrical energy can use solar panels. However, this conversion process has a small efficiency of 18%. This is because solar panels have non-linear characteristics, changes in sunlight intensity, operating temperature, and load current. Therefore, a technology is needed to optimize the power generated by solar panels. To optimize the power of solar panels, a Maximum Power Point Tracker (MPPT) is needed to find the maximum point of the solar panels. There are several algorithms used in the MPPT system, one of which is the Perturb and Observe (P&O) algorithm. The conventional Perturb and Observe algorithm is widely used for MPPT systems. By increasing and decreasing the voltage of the solar panels, the conventional Perturb and Observe algorithms can track the maximum point of the solar panels. However, this algorithm cannot quickly track the maximum solar panel point if a change in solar irradiation occurs. The modified Perturb and Observe algorithm can solve that problem by adding the dI and M parameters. The voltage generated by the solar panel is a voltage that is not constant, so a dc converter is needed. The converter used in this research is a buck converter. Modeling the MPPT system and also the buck converter using Simulink MATLAB. There are 3 modeling systems tested, namely systems without MPPT, systems with conventional perturb and observe (p&o) algorithms, and systems with modified perturb and observe (p&o) algorithms. The test is carried out by varying the irradiation value and also the load as much as 5 variations on each system. Then the three systems will be compared to see the performance of the three systems. Based on the simulation analysis, the two algorithms can increase the solar panel power and system output power. The conventional perturb and observe (p&o) algorithm has an efficiency value of 87% when there is a change in irradiation and produces greater power than a system without MPPT. In addition to changes in irradiation, conventional perturb and observe (p&o) algorithms also produce more power than systems without MPPT when load changes occur. Despite having the same efficiency, the modified perturb and observe (p&o) algorithm produces more power than conventional perturb and observe (p&o) and systems without mppt. The output power waveform generated by the conventional Perturb and Observe algorithm has oscillations that can damage the circuit. The output power waveform generated by the modified Perturb and Observe algorithm has no oscillations and produces greater power when there is a change in irradiation and a change in load.. Keywords— MPPT, Perturb and Observe (P&O), solar panel.
Other obstract
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| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | 621.381 |
| Uncontrolled Keywords: | Kata Kunci:MPPT, Perturb and Observe (P&O), panel surya--MPPT, Perturb and Observe (P&O), solar panel. |
| Subjects: | 600 Technology (Applied sciences) > 621 Applied physics > 621.3 Electrical, magnetic, optical, communications, computer engineering; electronics, lighting > 621.38 Electronics, communications engineering > 621.381 Electronics |
| Depositing User: | Unnamed user with email gaby |
| Date Deposited: | 19 Oct 2021 14:27 |
| Last Modified: | 24 Feb 2022 04:16 |
| URI: | http://repository.ub.ac.id/id/eprint/184154 |
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