Publication Type : Conference Paper
Publisher : Proceedings of IEEE International Conference on Circuit, Power and Computing Technologies,
Source : Proceedings of IEEE International Conference on Circuit, Power and Computing Technologies, ICCPCT 2017, Institute of Electrical and Electronics Engineers Inc., Kollam, India (2017)
ISBN : 9781509049660
Keywords : Ambient conditions, Computation theory, Computer circuits, Controllers, Electric power system control, Fuzzy logic, Fuzzy logic controllers, Grid connected inverters, Line-commutated inverters, MATLAB, Maximum power point, Micro inverters, Photovoltaic cells, Solar cell arrays, Solar PVs, Synchronization modules
Campus : Coimbatore
School : School of Engineering
Department : Electrical and Electronics
Year : 2017
Abstract : This paper presents a single stage grid connected three phase micro inverter for transfer of power from a solar array to grid controlled by a two level fuzzy logic controller. The system utilizes a line commutated inverter, thus the need for synchronization modules are eliminated. A fuzzy logic controller is designed and developed to track the maximum power from the PV panel and generate an appropriate control variable which is compatible for the switching of thyristorised converter. A two level logic is chosen for faster convergence with variable correction steps for the fuzzy logic controller. The maximum power point voltage window is identified from the PV array characteristics and the rule base for the two levels is developed. The system is tested for two array ratings of 5.8 kW and 8.7 kW to bring out the generic nature of the proposed fuzzy controller for power tracking. The micro inverter system is executed in MATLAB/Simulink for varying ambient conditions of the PV panel and the power balance is verified as proof of theory.
Cite this Research Publication : N. Aarthi, Vijayakumari, A., Dr. Sindhu Thampatty K.C., and Nambiar, T. N. P., “Single stage grid connected solar micro-inverter with two level fuzzy logic MPPT controller”, in Proceedings of IEEE International Conference on Circuit, Power and Computing Technologies, ICCPCT 2017, Kollam, India, 2017.