Design and Implementation of Intelligent MPPT Based on FPGA for PV System

Abstract

This paper presents the design and implementation of intelligent maximum power point tracking (MPPT) technique for Photovoltaic (PV) systems. The proposed MPPT is based on the fuzzy logic controller (FLC). FLCs have the benefit of being very easy to design as they don’t need accurate knowledge of the system and work well for the nonlinear system. The MATLAB/Simulink was used to verify the proposed method, with three scenarios of environment conditions. The DC-DC converter has been designed and simulated using PLECS simulation software, then implemented practically in order to work as impedance matching between PV source and load. The system was built based on Field Programmable Gate Array (FPGA) and connected to the PV panel and tested practically at the site for different environment conditions and compared with measurements obtained using solar analyzer device. According to the simulated and experimental results, the proposed method capable to find the maximum power point (MPP) under different climate conditions excellently with compared to perturb and observation (P&O) method. Also, it has very low oscillation about (MPP) and high response, as a result, efficiency is enhanced, providing maximum power transfer to load.

Fuzzy-based MPPT algorithm implementation on FPGA chip for multi-channel photovoltaic system

“…With the emergence of new performing algorithms and intelligent laws, new target technologies are substantially required. Thus, digital signal processors (DSPs) and field programmable gate arrays (FPGAs) seem to be the key solutions [25], [26]. Mostly, DSP-based systems are very appropriate in case of large data size and heave mathematical calculations of control technique.…”

Experimental Analysis of Modified DC-P&O Technique with Arm Controller for a Stand-Alone 40 W PV System

“…Energies 2021, 14, 6169 2 of 18 To overcome this concern, renewable energy sources (RES) play a vital role in producing power across the world throughout the year with a green concept [2].…”

“…The case is related to the design MPPT charge controller with modified DC-P&O method using an efficient DC-DC In this study, the solar cell schematic is presented in Figure 2 with the DC load (resistive) and whose I-V characteristic is obtained when the load is varied with a different value of current and voltage is measured [16,17]. To amend the efficiency of solar cells, many maximum power point techniques (MPPT) have been proposed in the literature, e.g., perturb and observe (P&O) or hillclimbing, improved perturb and observe (IP&O), incremental conductance (IC) technique, open circuit voltage methods, a fuzzy logic technique, DC-P&O, short circuit current and suggested modified P&O technique with some changes in the parameter for less steadystate oscillation and fast-tracking [18].…”