How the solar tracker opamp control circuit functions. Solarpower electronic circuits and electronic projects. Ds7 is real time clock ic which is used to keep microcontroller update about real time. We can harness solar energy by either converting it into electricity using solar cell or using solar thermal energy by means of solar cooker, solar water heater or by using it to heat or cool a room using solar passive systems. Apr 06, 20 here is a simple low cost solar tracker circuit which automatically moves the solar panel in the direction of sun. Solar tracking system is the most appropriate technology to enhance the efficiency of the solar cells by tracking the sun. These methods can then be configured either as sin. Solar tracking system full circuit diagram available. Time based solar tracking system using microcontroller. Lightdependent resistors ldr1 through ldr4 are used as sensors to detect the panels position. This caused q4 and q7 to overheat and stop working. It was able to keep the solar panel aligned with the sun, or any light source repetitively.
Stepper motor interfacing with pic microcontroller. We all know sun is the best source of energy source and has been shining since the universe was created. The circuit design of solar tracker is simple but setting up the system must be done carefully. At maximum, the solar tracker was perpendicular to the light source by 1.
Use of a solar tracker circuit in the field of energy production will increase its efficiency. The configuration of the main tracking circuit went through several modifications from the original design. For solar panels control is best to use small motors with a suitable voltage and a maximum working current of 300 ma. Jun 18, 20 this enables solar panels to interface to the tracker to obtain the maximumsolar radiation.
This enables solar panels to interface to the tracker to obtain the maximumsolar radiation. If you want to track the solar light in the vertical plane you need to build a separate sun tracker circuit. The concept of solar generated energy has the kind of truths behind it that would make the vast majority of advertising executives salivate. In sun tracking solar system project solar panel follow or track the sun with the help of ldr. Mar 20, 2015 for solar panels control is best to use small motors with a suitable voltage and a maximum working current of 300 ma. Here is circuit diagram for the 4 channel relay module. Pdf format and can easily be converted to the solar tracking system sun tracking system. I have posted a separate article on how to interface servo motor with pic16f877a microcontroller. The arduino supplies power to the relay switches, but not the motors. For more information about ds7 and its interfacing with microcontroller check following article.
The circuit works but i would like to make it more effecient. How to write code of solar tracking system using pic microcontroller. The solar panel tracker is designed to follow the sun movement so that maximum light intensity hits on the solar panel, thus increasing the power efficiency. How to collect free energy from atmosphere circuit diagram attached. With this particular solar tracker a closed loop system was made. Circuit diagram the circuit design of solar tracker is simple but setting. Single axis solar tracking system moves the solar panel from east to west in a day to point in the direction of the sun. Photovoltaic cell is composed of sillicon used as a component of a larger photovoltaic system to generate and supply electricity in commercial and residential applications. Solar tracking system using arduino uno board with circuit. Solar tracker relay circuit using arduino use arduino for. How the dual axis solar tracker concept works the device is able to track the daytime motion of the sun precisely and shift in the vertical axis accordingly. Circuit implementation of dual axis solar tracker system.
Dual axis solar tracker project is to provide an efficient solar distributed generation system. Amongst these the most popular and best method to harness solar. Portable solar tracker project circuit design and breadboarding. This kit is perfect for the person that wants a quick start on building a single axis solar tracker. This system collects free energy from the sun and stores it in the battery and then converts this energy to the respective alternating current. This method of power generation is simple and is taken from natural resource. Solar tracking system is a method to withdraw maximum power from solar panels. Solar tracking system using arduino uno board with circuit diagram and preject code project info blog link. This needs only maximum sunlight to generate power. Automatic solar tracking system mayank kumar lokhande abstract.
For the above procedure a different set of ldrs are used and are mounted horizontally over the panel, at a specific position as shown in the diagram. Two light dependent resistors are arranged on the edges of the solar panel. In solar tracking systems, solar panels are mounted on a structure which moves to track the movement of the sun throughout the day. Feb 21, 2014 solar panel collection of photovoltaic cells. Arduino recommended input voltage is from 7 to 12 volts but you can power it within the range of 6 to 20 volts which is the limit. Jun 01, 2010 passive solar techniques include selecting materials with favorable thermal properties, designing spaces that naturally circula te air, and referencing the position of a building to the sun. Since ldr is an analogue sensor they are connected to the analog pins a0 and a1 of arduino. In this paper is described the design and construction of a microcontroller based solar panel tracking system. Fabrication of dualaxis solar tracking controller project.
The solar tracking system is interfaced with a 1kw wind turbine, a deep cycle battery storage system, a charge controller and an inverter. The detailed instructions include the circuit diagram, an explanation of how the circuit works, a description of how single axis sun tracking works and advice for selecting a dc gearhead motor. It follow the sunlight according to sunlight intensity. A quantitative measurement was also performed, which reported how well tracking system improved output power in. Design of a lowcost solar tracking photovoltaic pv module. Block diagram of the proposed system explanation of each component in block diagram microcontroller. To provide an efficient solar distributed generation system, a scaled down dualaxis solar tracker was designed, built and tested. At the end of the project, a functional solar tracking system was designed and implemented. This article describes about circuit that rotates solar panel. Pdf solar tracking, sun tracking, sun tracker, solar. Lightdependent resistors ldr1 through ldr4 are used as sensors to detect the panels position relative to the sun. The reason for this choice is active tracking is a fairly effective method to track the sun and a dualaxis tracking system has the capability of increasing the yield of.
Solar powered auto irrigation system block diagram by. Sep 05, 2018 so, solar panel should continuously rotate in the direction of sun. The designed solar tracker is able to maintain a difference angle of 1. Solar powered automatic irrigation system ece projects. A careful investigation of the circuit shown in the diagram reveals that the whole configuration is actually very simple and straightforward. Solar tracking is realized through field programmable complex digital circuit and alternatively with a low cost solar radiation sensing transducer consisting of green light emitting diodes led. This is the wiring diagram for the solar tracker video we posted. Designing a mppt solar tracking system with buck converter to charge a 12v battery. At maximum, the solar tracker is perpendicular to the light source.
In this arduino solar panel tracker, arduino is powered by the 9v battery and all the other parts are powered by the arduino. Design of a lowcost solar tracking photovoltaic pv. Solar tracking system using arduino uno board with. This solar tracker system is used for tracking the sun only in one plane, the horizontal one. Some circuits would be illegal to operate in most countries and others are dangerous to construct and should not be attempted by the inexperienced. This system collects free energy from the sun and stores it in the battery and then converts this. People in underprivileged countries could benefit from the use of a solar distributed generation system. A quantitative measurement was also performed, which reported how well tracking system improved output power in comparison with fixed mount. Solar powered led street lighting on semiconductor. If you want to track the solar light in the vertical plane you need to. Initial circuit diagram of the main tracking circuit in the initial design, shown in figure 5, the transistors were directly powering the motor. The unit is a mobile system aimed to provide energy in remote areas or during emergency conditions.
In the circuit two ldr light dependent resistors sensors are used to sense the light. While this is far better than the 36% efficiency that most green plants end up with, it doesnt quite meet our power needs. Block diagram of automatic solar submersible pump control for irrigation solar panel. Rated by its dc output power under standard test conditions, and typically ranges from 100 to 320 watts. Solar tracking system using arduino pratik pawar, ashish yadav, pritam makwana, shubham patil abstract in this paper, a solar tracking system using arduino is designed and built. The component values can be found here solar tracker circuit parts list. Solar tracking system mini project pdf downloads in this paper is described the design and construction of a microcontroller based solar panel tracking system. For optimizing the solar tracking mechanism electromechanical systems were evolved through implementation of different evolutional algorithms and methodologies.
This paper describes the design and implementation of an energy efficient solar tracking system from a normal mechanical single axis to a hybrid dual axis. The pwm inputs of two servos are given from digital pins 9 and 10 of arduino. Beekeepers sun tracking solar wax melter project arduino uno. Jun, 2018 we have designed single axis solar tracking system. The solar tracker circuit uses a window comparator to maintain the motor in a idle state as long as the two ldrs are under the same illumination level. The movement of the sun is detected using two ldrs which are arranged on the solar panel in such a way that the intensity of light falling on it varies as the direction of sun changes. In this paper, an improvement in the hardware design of the existing solar energy collector system has been implemented in order to provide higher efficiency at lower cost. I designed this circuit and would like some input on it from anyone who is experienced with opamps. Introduction since this project is about creating a solar tracker, some light dependent circuit element. So, solar panel should continuously rotate in the direction of sun. In this case, half the voltage is applied to the noninverting input of a1 and to the inverting input of a1. To present the tracker, a hybrid dualaxis solar tracking system is designed.
These panels are designed with solar cells composed of semiconductor materials. Energy efficient hybrid dual axis solar tracking system. Single axis solar tracking is great for projects such as solar optical concentrators, solar ovens, fresnel lenses, and solar electric photovoltaic panels. Active solar technologies increase the supply of energy and are considered supply side technologies, while passive solar technologies reduce the need for. Circuit diagram of time based solar tracking system is given below. The application of solar powered led street lighting led lighting offers high efficiency, long operating life and low voltage operation which ideal for solar solar street lights were initially used in remote locations and disaster prone areas as led efficacy and light output have improved, they are. One of them is the single axis solar tracker and the other is dual axis. The solar tracker comprises comparator ic lm339, hbridge motor driver ic l293d ic2 and a few discrete components. Keywordsfour quadrant sensor, light dependent resistor ldr, automatic solar tracking system asts. Note that all these links are external and we cannot provide support on the circuits or offer any guarantees to their accuracy. For the most part our common every day solar cells run at an efficiency of 1820%, meaning they convert 1820% of the every they receive into electricity.
Solar is a nonconventional source of energy, considering this we have developed solar panels so that we can fulfill our electricity need. Oct 22, 2017 solar tracking system using arduino uno board with circuit diagram and preject code project info blog link. The ldrs are approximately 150 ohms in full sunlight, and about 5k in the shade, but that is not absolutely. Lets start with basic introduction of solar tracking system. This book on practical automatic solartracking suntracking is in. Solar energy is very important means of expanding renewable energy resources. The sun tracking solar panel consists of two ldrs, solar panel and a servo motor and atmega328 micro controller. We have designed single axis solar tracking system. Solar tracking system reshmi banerjee electrical engineering department, guru nanak institute of technology.
Solar tracking system plays a major role in this field because of the importance of tracking the sun and increasing absorption of solar energy during the day light timing. The main function of solar panels is to convert solar energy into dc electrical energy generally of 12v, which is. A microcontroller based design methodology of an automatic solar tracker. In this system, the whole solar panel moves from east to west in a day to point in the direction of the sun. Simple solar tracker system homemade circuit projects. Solar tracking system using pic microcontroller, in this article you will learn what is solar tracking system. Wherein the stepdown transformer steps down the voltage to 12 volts ac, and a bridge rectifier converts ac to dc, then a voltage regulator regulates the voltage to 5v which is used for the microcontroller operation. Efficient solar power generation system using moving panel is a efficientpower generating system using sun light. Solar panels are used to convert light energy into electrical energy. In modern solar tracking systems, the solar panels are fixed on a structure that moves according to the position of the sun. Microcontroller now days are becoming more popular because of. The earth receives 16 x 1018 units of energy from the sun annually, which is 20,000 times the requirement of mankind on the earth. Let us design a solar tracker using two servo motors, a light sensor consisting of four ldrs and arduino uno board.
The unit built is protected against gusts ofwind 50mhr or greater that could potentially damage it, in which case the panel would be placed in a protective position. The power supply comprises of a stepdown transformer, bridge rectifier, voltage regulator. The ldrs are approximately 150 ohms in full sunlight, and about 5k in the shade, but that. The solar tracker uses a combination of three photo resistors not phototransistors or ldrs light dependent resistor r7, r8, and r9 to ensure that the circuit will follow the sun during the day, but not look for it at night. Single axis solar tracking system with only resistors, capacitors, inductors, diodes, leds, ldrs, op. Which methods of solar tracking system being used now a days. A victron diy offgrid system consists of a prewired wallmountable distribution board complete with mppt solar regulator, circuit breaker referred to as cb. Firstly, the environmental considerations of using solar energy are huge.798 996 520 111 1282 1241 1059 1372 605 342 516 1216 451 973 586 189 702 710 1149 1213 789 1256 1273 1495 1051 40 1534 771 574 840 546 740 1370 204 1013 382 1320 544 1464 1055 1032 995 1378