Lemosadaptive control of a distributed solar collector field. Robust control of solar plants with distributed collectors. This book describes methods for adaptive control of distributed collector solar fields. Issn 17518822 adaptive control of solar tracking system. Controller design methods are presented that can overcome difficulties found in these type of plants.
In this study, an adaptive controller of a solar tracking system is designed and its performance is evaluated through computer simulation. Adaptive control of solar energy collector systems demonstrates the dynamics of solar fields to be rich enough to present a challenge to the control designer while, at the same time, simple enough to allow analytic work to be done, providing case studies on dynamics and nonlinear control design in a simple and revealing, but nontrivial way. A solar thermal collector collects heat by absorbing sunlight. Estimation, identification and adaptive control by p. Request pdf adaptive intelligent control of a solar collector field this paper presents new results of a multilevel linguistic equation le controller to maintain the outlet oil temperature. Adaptive control for solar photovoltaic tracking system. Adaptive control strategies and communications for utility. Thermal load based adaptive tracking for flat plate solar collectors. Qcoll is the energy collected per unit collector area per unit time fr is the collectors heat removal factor. Dimensioning and performance of solar space and water heating systems.
Adaptive control of solar energy collector systems joao. However, it is difficult to collect the heat continuously close to a prescribed temperature using a pid controller because the. Feedback linearization control for a distributed solar. Model and control of a solar tower for energy production kevin do coito ramos kevin. Adaptive control of a solar power plant using a multimodel. Solar energy is radiant light and heat from the sun that is harnessed using a range of everevolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture, molten salt power plants and artificial photosynthesis. Application of model reference adaptive control to solar. Temperature in a parabolic trough solar power plant. Model and control of a solar tower for energy production.
Hf radio communication for isolated village of 100 amerindians. Solar charge controller types, functionality and applications. Heliostat field collector hfc point 1001500 1502000 twoaxes parabolic dish reflector pdr point 100 100500 tracking. Concentration ratio is defined as the aperture area divided by the receiverabsorber area of the collector. Abstractdistributed collector solar fields are spatially dis tributed engineering systems, which aim at collecting and storing energy from solar radiation. Solar energy, intelligent control, nonlinear systems, adaptation, optimisation, linguistic. Efficient use of precious roof space is an important factor. Lemos and rui nevessilva adaptive control design and analysis, jul 9, 2003, by gang tao. Adaptive control of solar energy collector systems free ebook.
There are many control problems in which the objective consists of tracking a time varying reference which is known in advance. Dcs are in adaptive, robust, or nonlinear fields and includ. The concept of spacebased solar power sbsp systems has been in research since the early 1970s 1, 2. Using the sun energy to heat water is not a new idea. The use of solar energy for heat production dates from antiquity. This advanced solar system control features four relay outputs and adjustable deltat and time controlled thermostat functions for limitless confi guration possibilities. As dsc are systems subjected to strong disturbances mainly in solar radiation and inlet oil temperature. Abstractthe integration of photovoltaic pv solar sites and other distributed energy resources ders into utility control. Introduction the main dierence between a conventional power plant and a solar plant is that the primary energy source, while being variable, cannot be manipulated. The region of operation is split up into five operatingpoints which are represented by five different dynamical linear thirdorder armaxmodels to describe the plant. Adaptive receding horizon control of a distributed collector. Adaptive nonlinear control of a distributed collector solar field.
Assess the site for the correct collector orientation. Solar radiation is energy in the form of electromagnetic radiation from the infrared long to the ultraviolet short wavelength. Solar water heater controller northern light water heaters. It directs the voltage and current hailing from the solar panels setting off to the electric cell. The control strategies include basic feedforward and pid schemes, adaptive control, modelbased predictive control, frequency domain and robust optimal control and fuzzy logic control. Feedforward approaches based directly on the energy balance can use the measurements of solar irradiation and inlet temperature camacho et al. The control system is based a pitype le controller enhanced fig.
However, it is difficult to collect the heat continuously close to a prescribed temperature using a pid controller because the solar radiation is often interrupted by passing clouds. Adaptive control systems by gang feng, rogelio lozano free. Modeling, simulation, and performance evaluation analysis of a parabolic trough solar collector power plant coupled to an organic rankine cycle engine in north eastern greece using trnsys j. For the solar collector eld, the goal is to reach the nominal operating temperature 180 295 o c and keep it in changing operating conditions juuso, 2011, 2012. Smart adaptive control of a solar thermal power plant in varying operating conditions esko k. The major characteristic of a solar power plant is that the primary energy source, solar radiation, cannot be manipulated. Adaptive intelligent control of a solar collector field. These systems concentrate sunlight over a pipe inside which heat. By using solar energy, the internal fluid of a solar collector increases its thermal energy, which can generate electricity after certain processes, such as steam. A survey on control schemes for distributed solar collector fields. Energy efficient and sustainable adaptive reuse technologies for supply side management includes building electrical system retrofits and alternative energy supply systems to provide electricity andor thermal energy for buildings such as solar hot water, solar photovoltaics pv, wind energy, geothermal energy, etc. Those who downloaded this book also downloaded the following books. Abstract this paper is concerned with an application of nonlinear adaptive techniques to temperature control in a distributed collector solar.
Generally, 12v boardspanels put out in the ballpark of 16 to 20v, so if. Adaptive control of solar energy collector systems core. The control target is to track an outlet temperature reference by manipulating the fluid flow rate through the solar field, while attenuating the effect of disturbances mainly radiation and inlet temperature. Mars, the red planet mars is about half the size of the earth, and about 50% further away from the sun than we are, and it has long been of interest as a place where we might find life. Adaptive control of solar energy collector systems demonstrates the dynamics of solar fields to be rich enough to present a challenge to the control designer while, at the same time, simple enough to allow analytic work to be done, providing case studies on dynamics and nonlinear control design in. Pdf adaptive control of solar energy collector systems. The compass angle shows 180 for south, 90 for east and 270 for west. Solar collector the energy of the solar radiation is in this case converted to heat with the use of solar panel. Adaptive control of solar energy collector systems by joao. November 2015 abstractsolar towers are electrical power production systems that use highly concentrated solar radiation as energy source that is collected by means of a heattransfer. Adaptive methods form the focus of the text because of the degree of uncertainty in the knowledge of plant dynamics. In most solar pv energycalculator tools, an azimuth value of zero is facing the equator in both northern and southern hemispheres.
Keywords solar energy, intelligent control, nonlinear systems, adaptation, optimisation. Adaptive control of solar energy collector systems joao m. The control circuit for the power converter consists. The application of this multiple model adaptive control mmac strategy is illustrated by its experimental application to an air heating fan and a distributed collector solar field. This paper presents an application of fuzzy logic control to the distributed collector field of a solar power plant.
In the approach followed, the partial differential. Adaptive control of distributed collector solar fields article pdf available in international journal of systems science 378 june 2006 with 64 reads how we measure reads. Solar energy, intelligent control, nonlinear systems, adaptation, optimisation, linguistic equations, modelling, simulation introduction solar power plants should collect any available thermal energy in a usable form at the desired temperature range, which improves the overall system ef. Dec 01, 2007 this article describes the application of a feedback linearization technique for control of a distributed solar collector field using the energy from solar radiation to heat a fluid. Solar radiation varies throughout the day, causing changes in plant dynamics and strong perturbations in the process. Adaptive control of solar energy collector systems.
Solar energy, helio systems, solar panels, collectors, equipment for water heating and space heating using solar energy and everything about solar energy. This paper presents a robust control scheme for a distributed solar collector dsc field. Photovoltaic pv system output energy yield strongly depends on weather conditions such as wind speed, humidity variations, temperature fluctuation and solar irradiance, and some other factors such as dustdirt, hot spots 4, 5, snow and micro cracks 7, 8. Michael rourke and darrin kite, schweitzer engineering laboratories, inc. Feedforward control of solar thermal power plants journal. If facing due west refer to the detailed installation manual for more guidelines.
Solar energy control system design kth information and communication technology. Control of solar energy systems advances in industrial control eduardo f. In view of this it is clear that general recommendations for the individual countries. Adaptive control of solar energy collector systems free. The control system has been designed taking into consideration all developmental and operational needs for a modern and robust system, suitable for an experimental facility. Pdf thermal load based adaptive tracking for flat plate. Smart adaptive control of a solar collector field sciencedirect. The data input for estimate the energy in the photovoltaic panels is the radiation data. The present paper describes the implementation of a control system at the platform for research, observation and technological applications in solar energy proteas in cyprus. Sbsp systems consists essentially of five functional units. Adaptive control of solar energy collector systems advances in industrial control, jun 5, 2014, by joao m. Control applications, solar energy, adaptive control, nonlinear control, distributed parameter systems. A number of southwestern states have high solar potential and some have renewable energy portfolio standards particularly, az, ca, nm, and nv and the potential to gain from development of their solar energy resources. This book describes methods for adaptive control of distributedcollector solar fields.
Solar collector is a mechanical device which captures the radiant solar energy and converts it to useful thermal energy 4. Adaptive receding horizon control of a distributed collector solar field j. Control of highly nonlinear processes such as solar collector fields is usually a. Solar thermal collector efficiencies are typically more than three times solar photovoltaic collectors. Variable sampling adaptive control of a distributed collector solar field. Control of solar energy systems advances in industrial. The objective of the control system in a distributed solar collector eld. F jager, in solar energy applications in houses, 1981. Robust control, process control, feedforward control, quantitative feedback theory, solar plants. Control of solar energy systems details the main solar energy systems, problems involved with. Still, the tilt and azimuth angles of pv installations play a major role in increasing the annual energy.
Rato, variable sampling adaptive control of a distributed collector solar field, control systems technol ogy, ieee. Control the blower based on temperature in the collector and in the. To achieve this goal, two tracker systems based on open and closedloop control strategies are studied. Solar thermal systems can operate in conjunction with photovoltaic collectors.
The scu 345 is an advanced solar system control for multiload systems, eastwest collector arrays and commercial solar systems. Typical modern space with some of todays requirements. The azimuth is the pv arrays eastwest orientation in degrees. It has an additional aqua stat function preprogrammed for different hydraulic layouts and is equipped with energy metering. Introduction solar thermal solar photovoltaic in cold climate large amount of low grade thermal energy is used.
Silva abstractthis paper presents an adaptive receding horizon control algorithm for a distributed collector solar. A collector is a device for capturing solar radiation. Distributed collector solar fields are spatially distributed engineering systems which aim at collecting and storing energy from solar radiation. Sixth portuguese conference on automatic control, june 79, faro, portugal, 2004. Energy efficient and sustainable adaptive reuse technologies for supply side management includes building electrical system retrofits and alternative energy supply systems to provide electricity andor thermal energy for buildings such as solar hot water, solar photovoltaics pv. Pdf in this study, an adaptive controller of a solar tracking system is designed and its performance is. Solar air collectors also known as air heaters modular, off the shelf design rreal show srcc. Imcbased iterative learning control of a solar plant francisco martucci mejia solar thermal power is one of the best ways to convert solar energy into electricity. Cascade control of a distributed collector solar field sciencedirect. Collector must be installed at no less than a 20 o angle, and preferably 3060.
Thermal energy systems are explored in depth, as are photovoltaic generation and other solar energy applications such as solar furnaces and solar refrigeration systems. Intelligent control of a solar thermal power plant. Introduction the use of renewable energy, such as solar energy, experienced a great impulse during the second half of the seventies. Solar space heating system design should take into account the radiation climate, the heating load pattern of the house and the entire set of economic factors discussed in chapter 7. In addition to seasonal and daily cyclic variations, the intensity. Pdf adaptive control of solar tracking system researchgate.
Adaptive nonlinear control of a distributed collector. Imcbased iterative learning control of a solar plant. Fuzzy logic control of a solar power plant semantic scholar. Firstly, it furnishes any available thermal energy in a usable form, i. Experiments with a fault tolerant adaptive controller on a solar power plant. More than one hundred years ago black painted water tanks were used as simple solar water heaters in a.
Solar energy is radiant light and heat from the sun that is harnessed using a range of everevolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture, molten salt power plants and artificial photosynthesis it is an essential source of renewable energy, and its technologies are broadly characterized as either passive solar or active solar depending. The region of operation is split up into five operatingpoints which are represented by five different dynamical linear thirdorder armaxmodels to describe the plant characteristics. Adaptive regulate of solar power collector systems demonstrates the dynamics of sun fields to be wealthy sufficient to provide a problem to the keep an eye on fashion designer whereas, even as, uncomplicated sufficient to permit analytic paintings to be performed, offering case reports on dynamics and nonlinear regulate layout in an easy and. This is achieved by means of a constrained nonlinear adaptive modelbased predictive control framework where the control action sequence is obtained by solving an open. Keywordssolar energy, intelligent control, nonlinear systems, adaptation, optimisation. Intelligent control of a solar thermal power plant adaption. Estimating the impact of azimuthangle variations on. A proportional plus integral plus derivative pid controller is used to obtain usable energy from the sun in almost all the solar systems in japan. The instantaneous and total errors that represent the differences between the tilt and rotation angles of both the open and closedloop systems are. A solar charge controller is fundamentally a voltage or current controller to charge the battery and keep electric cells from overcharging. Although the primary focus of this monograph is solar energy collector, the range of other systems which can benefit from the methods described will make it of interest to control engineers working in many industries as well as to academic control researchers interested in adaptive control and its applications. Spaceheating system an overview sciencedirect topics.