On the Design of an Intelligent Battery Charge Controller for PV Panels

Abstract

The electricity generations of photo voltaic (PV) panels are strongly related with insolation and temperature. The insolation and temperature are not stable, since the electricity generations of the PV panels are not stable. In PV systems, insolation and temperature continuous vary. Therefore, the maximum power point tracking (MPPT) techniques are used to give the highest power to the loads/batteries. The MPPT process is performed with a power electronic circuit and it overcomes the problem of voltage mismatch between the PV panels and the batteries/loads. In this study, a microcontroller is employed to develop battery charge control system for PV panels. The system is composed of a microcontroller (Microchip PIC18F2550), a buck-boost type DC-DC converter, a resistive load, and lead acid battery. In the system, MPPT, charge control, and discharge algorithms are executed by a program embedded within the microcontroller. The program also has ability to perform some data acquisition process and acquired data are sent to the personal computer (PC) through the USB communication port. In addition the system has able to be followed and controlled by the graphical user interface (GUI).

Design and Dynamic Modelling of a Hybrid PV-battery System for a House with an RO Water Desalination Unit in Iran

“…The most important factor in increasing the efficiency of a PV system is designing an MPPT to extracting maximum power from the panel. In [26], a microcontroller, NIBB converter, a DC load, and lead-acid battery were integrated into a system to show that the selected converter can perform the MPPT technique. In this study, NIBB operates as a battery charger and can deliver maximum power from the panel to the DC bus.…”

Intelligent Control Using Metaheuristic Optimization for Buck-Boost Converter

“…Furthermore, Liu and Hsu adopt the particle swarm optimization (PSO) technique for a static synchronous compensator (STATCOM) in finding a suitable standard value of intelligent PI controller [14]. Ultimately, Çınar and Akarslan design an intelligent battery charger controller for PV panels due to the its various capabilities [15]. Hence, a PI controller is operated to control the farming load system, the battery charger system, and the system which can supply to grid-connected system.…”

Optimal Battery Charger Fed by Photovoltaic System based on Decreased Charging Current Method

“…not grid-connected) photovoltaic (PV) systems. So that, problem of surplus or reduction of the producing power can be solved [1]. Another purpose of using the batteries in the off-grid photovoltaic power system is to store the electrical energy produced by the PV panel during the sunshine period and restore it during night time, sunless periods and those of weak irradiation.…”

“…Also, studies have shown that the life time of the battery is degraded without using charge controller. Therefore, an optimal charge controller should be designed to prolong the battery's life time [1] [3].…”