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International Journal of Electrical and Computer Engineering (IJECE)International Journal of Electrical and Computer Engineering (IJECE)DC-DC boost converters are essential for stabilizing the voltage output of photovoltaic (PV) modules. This paper analyzes a unique 50 W high-gain DC-DC flyback boost converter for various input voltage PV applications. Scientific analysis was employed to determine suitable parameters for critical circuit components. Simulations were conducted to evaluate the proposed high-gain DC-DC boost converters performance. Subsequently, a prototype of the high-gain DC boost converter was fabricated with a printed circuit board (PCB) size of 100×100 mm. The proposed prototypes performance is compared to that of conventional boost converters based on criteria such as input voltage, output voltage, component count, voltage stress, voltage gain, efficiency, and rated power. The results indicate that the proposed converter can achieve a 300 V output voltage with a 50 W power rating from variable input voltages ranging between 12 V and 36 V. The highest gain achieved was 25 with a 12 V input voltage, though at a lower power rating of 15 W. A peak efficiency of 84.30% was measured with a 24 V DC input voltage. The proposed converters features, particularly its high step-up voltage gain, make it suitable for industrial and renewable energy applications.
This research introduces a unique performance evaluation of a high-gain DC-DC flyback boost converter, specifically designed for low-power photovoltaic applications.Through comprehensive theoretical analysis, simulations, and experimental validation, the research unveils a distinctive converter design that achieves a remarkable voltage gain of 25, offering enhanced efficiency, scalability, and performance even under varying input voltages.A prototype of this high-gain DC-DC flyback boost converter was fabricated on a 100×100 mm board, designed to generate a voltage output of 300 V with a 50 W power rating, using input voltages between 12 V and 36 V.The proposed converter demonstrated a high voltage gain of 25 at 12 V input, though with a reduced power rating of 15 W, and reached a peak efficiency of 84.Unlike traditional designs or those focused on higher-power applications commonly found in the literature, this research fills an important gap by optimizing converters for small-scale renewable energy systems.The converters performance, particularly under fluctuating input conditions, provides crucial insights into its efficiency, stability, and real-world applicability in photovoltaic setups.
Berdasarkan hasil penelitian ini, beberapa saran penelitian lanjutan dapat diajukan untuk meningkatkan kinerja dan efisiensi konverter DC-DC flyback boost. Pertama, penelitian lebih lanjut dapat difokuskan pada pengembangan algoritma kontrol adaptif yang mampu secara otomatis menyesuaikan parameter konverter berdasarkan kondisi input dan beban yang bervariasi. Hal ini bertujuan untuk memaksimalkan efisiensi konverter pada berbagai kondisi operasi. Kedua, eksplorasi penggunaan material baru dengan karakteristik yang lebih baik, seperti material semikonduktor dengan resistansi yang lebih rendah atau material magnetik dengan permeabilitas yang lebih tinggi, dapat dilakukan untuk mengurangi kerugian daya dan meningkatkan kinerja konverter. Ketiga, integrasi sistem MPPT (Maximum Power Point Tracking) yang lebih canggih dapat diimplementasikan untuk memastikan konverter selalu beroperasi pada titik daya maksimum dari panel surya, sehingga memaksimalkan energi yang dihasilkan.
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