International Journal of Power Electronics and Drive System (IJPEDS) Vol. 10, No. 2, June 2019, pp. 842~851 ISSN: 2088-8694, DOI: 10.11591/ijpeds.v10.i2.pp842-851  842 Journal homepage: http://iaescore.com/journals/index.php/IJPEDS Stand-alone PV system with MPPT function based on fuzzy logic control for remote building applications Hussain A. Attia 1 , Fernando delAma Gonzalo 2 1 Department of Electrical, Electronics & Communication Engineering, American University of Ras Al Khaimah, United Arab Emirates 2 Department of Architecture, American University of Ras Al Khaimah, United Arab Emirates Article Info ABSTRACT Article history: Received Aug 15, 2018 Revised Nov 19, 2018 Accepted Dec 1, 2018 Due to the limitations of reaching the grid utility to remote area, such as rural and/or countryside areas. Stand alone photovoltaic power systems represent good alternative that it can be adapted for electrical power delivering to these areas. In this paper, a new design of stand alone solar system suitable for individual building application is presented. This study focuses on proposing a desired solar PV panels matrix arrangement and connection, in addition to presenting an accurate design of Buck-Boost DC-DC converter which controlled by fuzzy logic controller FLC. The controller guarantees the maximum Power Point working conditions and manipulates the fluctuation of the DC link voltage of the matrix due to the weather changing. The main system includes battery bank charger, single phase inverter, and passive power filter. This study addresses the design and performance analysis the DC side of the 7.85 kW PV system. The system performance is evaluated through MATLAB/Simulink results which reflected the promising indications as an effective system for rural individual stand alone building applications. Keywords: Buck-boost converter Fuzzy logic controller MATLAB MPPT Photovoltaic panels matrix Solar energy Copyright © 2019 Institute of Advanced Engineering and Science. All rights reserved. Corresponding Author: Hussain A. Attia, Department of Electrical, Electronics & Communication Engineering, American University of Ras Al Khaimah, Ras Al Khaimah, 10021, UAE. Email: hattia@aurak.ac.ae 1. INTRODUCTION Stand-alone solar systems are representing a high priority alternative to the grid utility for remote and rural areas. The solar energy availability and the zero cost of harvesting this energy in addition to the easy usage and other all are representing the merits of this source of energy [1, 2]. Solar energy can be converted into electrical power using the smaller unit in the solar system; this unit is solar cell which works on producing the desired output voltage or current through designing the arrangement of cells in the photovoltage PV panel [3]. Any desired value of electrical power (voltage, current) can be gained through designing the connection way among the solar photovoltaic panels. To have higher supplying voltage, PV panels should be connected in series where as to have higher supplying current, PV panels should be connected in parallel. For certain requirements of total voltage and current, PV panels can be connected in XY matrix that to guarantee the desired VI values [3-5]. In [6], a full design of a standalone photovoltaic system with high performance function is proposed. The system was manipulating the fluctuation of the DC link voltage which supplied from the PV panels to the system. Boost DC-DC converter is designed and simulated to overcome the variation in weather condition that to have stable suppled voltage as possible. Sinusoidal Pulse Width Modulation (SPWM) inverter is included in the system, the inverter is terminated by LCL-Filter to reduce the levels of the load current harmonic components.