Ferdian Ronilaya, Sandi Budi Kurniawan, Mohammad Noor Hidayat, Erfan Rohadi, Rachmat Sutjipto, Indrazno Siradjuddin
This paper discusses the input-series output-parallel (ISOP) flyback-type micro-inverter which is implemented for AC photovoltaic module to achieved higher voltage input and output current rating. The main features of this micro inverter include a stable current injection, lower level harmonic distortion, potentially lightweight and lower cost. Additionally, as the inverter is mounted in a single PV module, the inverter may harvest maximum power when partial shading occurs. However, since the two flyback-inverters are connected in series/parallel, there should be a proper control strategy for each inverter to obtain optimum performance. The strategy to control the inverters is based on a power-sharing loop using the droop method. Several experiments and simulations are carried out to examine the design and the results show the effectiveness of the proposed control strategy. © 2019 IEEE
Department of Electrical Engineering, State Polytechnic of Malang, Malang, Indonesia