Electromagnetic suspension ems uses the attractive magnetic force of a magnet beneath a rail to lift the train. Maglev derived from magnetic levitation uses magnetic levitation to propel vehicles. Magnetic levitation is a process by which a magnet over a piece of a metal causes electrical current to flow in the metal that, in turn, produce forces that push the magnet upward. Laser sensors provide noncontacting position feedback and incorporate proprietary conditioning to electronics for signal noise reduction and ambient light rejection. Students receive individual kits along with assembly instructions for building a magnetic levitation device that is marginally stable, and they are then challenged to modify the system to improve. T railway technology today 12 edited by kanji wako magnetic. Paul friends research helped him plot levitation height vs. Applications and future of magnetic levitation high tech point. Magnetic levitation, maglev, or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields. Simple magnetic levitation train seminar reportpdf ppt download the answer to this transportation problem lies in the world of electro magnetism and superconducting magnets.
This kit is based on a lowcost design developed in 4, which uses proportional. Practical applications of magnetic levitation technology. From the ones on the fridge, the speakers in your car, and propelling high speed trains, magnets are being used constantly. Magnetic levitation maglev or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields. Magnetic levitation is cited on microsoft academic search as follows. Magnetic levitation the need for fast and reliable transportation is increasing throughout the world. Magnetic levitation latest seminar topics for engineering.
Working concept behind ultrahigh speed supersonic trains technology of maglev there are two primary types of maglev technology. Electromagnets and superconducting magnets have allowed us to create a magnetic levitation train nicknamed maglev that floats on the track instead of being directly on it. Abstractlowcost magnetic levitation project kits are used in teaching system design in an introductory undergraduate control systems course. For decades, conventional trains, a major source of land transportation, have served people around the world. T railway technology today 12 edited by kanji wako. The magnetic levitation system shown in above figure, keeps a steel ball suspended in the midair by counteracting the balls weight with the electromagnetic force. Since then, japans shinkansen network has expanded considerably, and its success has prompted rapid development of highspeed railways in other countries as well, especially in the west. This increases efficiency, reduces maintenance costs, and increases the useful life of the system. The picture shows a sumo wrestler standing on a levitating magnet platform that floats above a hightemperature superconductor. Controller design for magnetic levitation system a thesis submitted in partial fulfillment of the requirements for the degree of master of technology in control and automation by abhishek nayak m. As the world continues to grow and as cities continues to. Magnetic levitation is the phenomenon in which two magnetic objects are repelled from each other in a vertical direction.
Superconducting levitation superconductors are ideal diamagnetics and completely expel magnetic field at low temperatures. These advantages have made magnetic levitation systems a great candidate for clean room applications. If the same windmill is operating at 50% of its maximum speed the efficiency becomes very low. Introduction from the principal point of view, the magnetic levitation is a method which is used for suspending an object in the air, without any physical contact. This paper discusses the development of magnetic levitation vehicles in. Magnetic levitation system in control engineering education 153 2. The superconductor is cooled by liquid air and hidden below the platform. Magnetic levitation a seminar report submitted in partial fulfillment of the. With maglev, a vehicle is levitated a short distance. The electromagnetic force is used to counteract the effects of the gravitational force. Maglev trains seminar report,ppt,pdf,doc,presentation. Maglev trains seminar report,ppt,pdf,doc,presentation,free. The plant model is controlled by a pid controller with feed forward to cope with the nonlinearity of the magnetic levitation system. A common one is a magnet floating above a piece of ybco hightemperature superconductor cooled by liquid nitrogen.
Magnetic levitation maglev can create frictionless, efficient, faroutsounding technologies. Magneticlevitation literally means floating in air. Apr 28, 20 magnetic levitation is cited on microsoft academic search as follows. It is a type of magnet in which the magnetic field is produced by electric current. The phenomenon, also known as maglev the principle of a maglev train is that it floats on a magnetic field which is created either by flow of electric current through a coil or due to the effect of superconducting materials. Magnetic levitation is used in a new generation of train that will have cruising speeds. Due to the lack of mechanical contact, magnetic levitation systems are free of problems caused by friction, wear, sealing and lubrication. Model of the electromagnetic levitation device tomas hron. Magnetic levitation is the process of levitating an object by exploiting magnetic fields. In the past, magnetic levitation was attempted by using permanent magnets. Direct diamagnetic levitation how it works diamagnetic materials repel a magnetic field all materials have diamagnetic properties, but the effect is very weak, and usually overcome by the objects paramagnetic or ferromagnetic properties, which act in the. Electromagnetic suspension ems uses the attractive magnetic force of a magnet beneath a rail to lift the train up. Magnetic force is used to counteract the effects of the gravitational acceleration and any other accelerations. Magnetic levitation technique is found to be the main alternative to fossil fuels to overcome its less availability.
Bidyadhar subudhi department of electrical engineering national institute of technology, rourkela. Magnetic levitation control system in stand alone analogue mode recall that the considered equipment is with a builtin power supply and in the analogue mode is capable of standalone operation without any computer control software. In this thesis, a new large gap magnetic levitation system is designed, developed and successfully tested. If the force is large enough, the moving magnet can levitated. Simple magnetic levitation train seminar reportpdf ppt download. Mar 21, 2012 magnetic levitation maglev can create frictionless, efficient, faroutsounding technologies. Magnetic levitation vehicles introduction magnetic levitation, or maglev, is a technology used for highspeed trains in which the vehicle is lifted from the roadway or guideway by a magnetic field. The name maglev is derived from magnetic levitation. The basic idea behind an electromagnet is extremetric ly simple, by running elec current through a wire. Diamagnets repel, and are repelled by a strong magnetic field. Sketch of the process, that is, the magnetic levitation system and its frame. Magnetic levitation wind turbine maximum overall efficiency of windmill is 30%.
Magnetic force is used to counteract the effects of the gravitational acceleration and any other accelerations the two primary issues involved in magnetic levitation are lifting forces. Maglev, or magnetic levitation, is a system of transportation that suspends, guides and propels vehicles, predominantly trains, using magnetic levitation. Trends in increased mobility of large masses with changing lifestyle for more comfort are leading to. Magnetic levitation powerpoint authorstream presentation. Simple magnetic levitation train seminar report pdf ppt download the answer to this transportation problem lies in the world of electro magnetism and superconducting magnets. Current projects nclusion introduction maglev, or magnetic levitation, is a system of transportation. Many common materials such as water, wood, plants, animals, diamonds, fingers, etc. The magnetic levitation technology can be used as an efficient technology in. Magnetic levitation principles introduction magnetic fields are used to describe forces at a distance from electric currents.
Apr 10, 2011 magnetic levitation wind turbine maximum overall efficiency of windmill is 30%. The colorado department of transportation has entered into a memorandum of understanding to conduct research and development under the federal urban magnetic levitation program. Electromagnets and superconducting magnets have allowed us to create a magnetic levitating train. Magnetic levitation definition of magnetic levitation by. The electrons in a diamagnetic material rearrange their orbits slightly creating small. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Here are some of the craziest uses that engineers and designers have dreamed up. Magnetic levitation is a highly advanced technology. Magnetic levitation train superconductivity train scribd.
Stable passive diamagnetic levitation at room temperature using permanent magnets many people have seen levitation tricks. Download the seminar report for magnetic levitation. Colorado intermountain fixed guideway authority cifga sandia national laboratories snl maglev transit group mtg. Maglev research and development began in germany and japan during the early 1970s. The kit is easy to assemble, but initial performance of the device is intentionally poor. Trends in increased mobility of large masses with changing lifestyle for more comfort are leading to congestion on roads with automobiles. The magnetic levitation technology can be used as an efficient. The definition goes on to state, in a simple configuration, an electromagnet is used to lift up a ferromagnetic object and. The faster the train moves, the higher the train levitates.
The physics of magnetic levitation physics 212x spring 2011 john dutton 04122011 magnets make up a huge part of our everyday lives. The use of magnetic fields to suspend an object above another object without solid mechanical support. If the magnetic force of attraction is used, it is known as magnetic suspension. Pdf 32 simple magnetic levitation train seminar reportpdf ppt download. Magnetic levitation is a way of using electromagnetic fields to levitate objects without any noise. As mentioned, superconducting magnets are used create a strong magnetic force to propel the vehicle. One can also levitate a frog or other animals or objects with a very powerful superconducting magnet. Modeling of magnetic levitation system peter balko, danica rosinova institute of automotive mechatronics slovak university of technology in bratislava bratislava, slovakia danica. Magnetic levitation train free download as powerpoint presentation. When assembled as described, the system exhibits high sensitivity to initial conditions and considerable visible wobble of the object. Simple magnetic levitation train seminar reportpdf ppt. Magnetic levitation maglev technologies the tokaido shinkansen began operations in 1964 and was an immediate success. This report is about magnetic levitation, and its application in the field. The electromagnetic force is used to counteract the.
Model of the electromagnetic levitation device tomas hron czech technical university in prague faculty of electrical engineering department of electrotechnology 1. It employs diamagnetism, which is an intrinsic property of many materials referring to their. The magnets used in magnetic levitation suspend an object free of contact with any surface, making it particularly appropriate for highspeed 275300 mph435475 kmh transportation, where it greatly reduces friction and allows for fast, quiet operation. In 1983, roy harrigan received a patent for a levitation device that consisted of a small spinning magnet floating above a large base magnet, and bill hones of fascinations, inc. The common point in all applications is the lack of contact and thus no wear and friction. But they offer more than just propulsionthey also levitate. Maglev train ppt, seminar report and pdf study mafia. Colorado department of transportation magnetic levitation. Applications and future of magnetic levitation high tech. If magnetic repulsion is used, it is known as magnetic levitation. Magnetic levitation driving without wheels presentation outline 1. V3 department of mechanical engineering, magna college of engineering, magaral, chennai, india 1,2, 3.
Submitted to the 2004 american control conference 1 lowcost. The definition goes on to state, in a simple configuration, an electromagnet is used to lift up a ferromagnetic object and the gravity pulls down the. Rao pdf magnetic bearings by hillyard pdf design and control. Colorado intermountain fixed guideway authority cifga. Maglev derived from maglev could be a conveyance technology that uses magnetic levitation to move. The term levitation refers to a class of technologies that uses magnetic levitation to propel vehicles with magnets rather than with wheels, axles and bearings. Highspeed rail has been the solution for many countries. Magnetic levitation full seminar reports, pdf seminar abstract, ppt, presentation, project idea, latest technology details, ask latest information. Magnetic levitation full seminar report, abstract and presentation. Pseudolevitation of two permanent magnets on a guide rod.
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