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Energy crisis and increasing demand for energy is the most important issue in today's world as demand for electrical energy increasing over the years. Conventional energy sources like fossil fuels are not only limited but also hazardous to environment. the production of electrical energy using clean, renewable sources, such as solar energy, wind energy, etc. Owing to the usage of solar energy, it...
The use of fossil fuels and the greenhouse gases emission is a growing concern of the international community. For this reason, the research and development of alternative sources are forcing down the costs associated with renewable energy sources. Photovoltaic energy production is the best example of these exponential growing rates at the last years. However, the output power provided through the...
The main goal of this project is to design a very precise solar tracker. The project is divided into two parts; hardware and software. Hardware part generally composed of solar panel, two-DC motors with gearbox, LDR sensor module and electronic circuit. Software part represents the thinking behavior of the system, that is how the system acting under several weather conditions. In this work sensing...
The enhancement of energy using solar photovoltaic in a limited area over domestic roof tops in urban areas is quite challenging. This paper focuses on the electrical energy production by photovoltaic cells having vertical placement for space reduction The developed tracking system is innovative and based on chronological sun tracking system which is based upon meteorological data collected average...
In country like India demand of energy increases with increase in population so the use of renewable and natural sources of energy like wind energy, tidal energy, solar energy etc is the need of time in country. In this paper we present development and experimental study of two axis automatic control of solar tracking system using Arduino. In hardware development five light dependent resistors (LDR)...
An overview of solar energy technology is discussed briefly. To increase the energy efficiency of a solar array, maximum power output is desired. There are three major approaches for maximizing power extraction from a solar array. They are sun tracking, maximum power point (MPP) tracking or a combination of both. The sun-tracking design can increase energy yield up to 50% over the year compared to...
Energy and environment are the major problems in today's world. Renewable energy is the only solution to meet power demand as the conventional energy sources are not only limited but also the main culprit for environmental pollution. Solar energy is the primary source of renewable energy in developing the power deficient. But solar panels are less efficient in developing the power due to its fixed...
Southern Algeria is the favorite field of solar energy in general and photovoltaics in particular. More energy is produced by tracking the solar panel to remain aligned to the sun at a right angle to light rays [1]. This paper describes a smart prototype for solar tracking system based on a PIC16F877A microcontroller and an extremal servo-control. Because the sun does not dramatically change its vertical...
The paper addresses the sensing and control strategies for dual axis tracking solar concentrators appropriate for solar power systems used for cooling and heating. The constructive structures are introduced together with the remote monitoring architectures appropriate for characterizing the operation of such solar systems. Fundamental positioning structures and tracking principles are analyzed and...
There have been different types of solar trackers employing different algorithms and techniques. Nevertheless most of them adopt the use of different types of solar radiation sensors to detect the position of the sun over the sky. Consequently these algorithms introduce the use of advanced mathematics and complex hardware. In this paper, the authors propose a much simpler algorithm which uses no sensor...
This project aimed to build a prototype that enhances the capabilities of a solar panel by using a solar tracker and data logger. The solar panel was theoretically enhanced by positioning it perpendicular to the sun's rays. This was accomplished by building a mounting for the solar panel that can be controlled by servo motors. Matlab programming was used to gather the data from the sensors and perform...
This work describes a Wireless Sensor Network (WSN) based control system for a concentrating solar thermal energy system. Concentrating solar thermal systems require precise tracking of the sun in order to operate most efficiently. Parabolic trough systems require at least one axis of tracking, while the heliostats used in "power tower" systems require two-axis tracking. The system described...
In recent years, solar energy has established itself as one of the chief non-conventional energy sources, promising to be the energy source of the future. Owing to the impending energy crisis due to exhaustion of fossil fuels, it has become necessary to develop techniques that will help exploit solar energy in a better, more efficient way. This paper presents a photovoltaic system incorporating one...
Shortage of non-renewable fuel in the future is an upcoming global issue; therefore renewable energy such as solar energy has gradually replaced non-renewable energy. However, the output power provided via the photovoltaic conversion process depends on solar irradiation. The objective of this project is to design and develop an automatic Solar Tracker Robot (STR) which is capable to track maximum...
A new mechanical structure for solar tracker was designed and presented. The structure implements two stepper motors for free rotation on X and Y axis. The rotation is intelligently controlled by a pre-programmed 2K microcontroller device PIC 18F4560 which provides simple programming strategy through C language. The designed algorithm is based on the measurement of intensity of solar radiation which...
This paper presents new design idea for stand-alone solar tracking system which is based on Field Programmable Gate Array (FPGA). The proposed idea of the design is based on astronomical equations to determine the position of the sun in the sky at any time of the day to calculate the azimuth angle and altitude angle for the two axis tracking purposes. The system is capable of tracking the sun properly...
A solar tracking system is designed to optimize the operation of solar energy receivers. The objective of this paper is proposing a new tracking system structure with two axis. The success strategy of this new project focuses on the economical analysis of solar energy. Therefore it is important to determine the most cost effective design, to consider the costs of production and maintenance, and operating...
Solar energy is very important means of expanding renewable energy resources. In this paper is described the design and construction of a microcontroller based solar panel tracking system. Solar tracking allows more energy to be produce because the solar array is able to remain aligned to the sun. The paper begins with presenting background theory in light sensors and stepper motors as they apply...
This paper proposes a novel tracking algorithm considering radiation to improve the power of photovoltaic (PV) tracking system. Sensor method used in a conventional PV plant is unable to exactly track a sun position when intensity radiation is low, and has the problem that is malfunction of tracking system by a rapidly changing climate. Program method is generated power loss by unnecessary operation...
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