Rizky Ajie Aprilianto, Mario Norman Syah, Agus Suryanto
This work applies a proposed high-gain topology with a magnetically coupled quadratic modified single-ended primary-inductor converter (MCQ-MSC) for photovoltaic (PV) systems. It aims to investigate the performance handling intermittent characteristics. The systems involve a 1 kW PV string with PSP-250W types, a maximum power point tracking (MPPT) controller adopting the perturb and observe (P&O) algorithm, and the proposed converter with a load, which has been modelled by PSIM software. The testing comprises the power extraction performance, the voltage boosting capability, and the converter efficiency. The MPPT controller reaches a 99.87% ability to extract PV maximum power. The converter produces 16.2 times the voltage gains for standard test conditions (STC) with a 61.8% duty cycle. Meanwhile, the voltage gain fluctuated for variable irradiation, reaching 11.7 times at the lowest irradiance. In contrast, the voltage fluctuation due to the ambient temperature change is smaller and capable of 17 times gain voltage at the highest temperature testing. The proposed converter efficiency is around 98% for all testing conditions. © 2024 IEEE.
Universitas Negeri Semarang, Department of Electrical Engineering, Semarang, Indonesia
