From the ones on the fridge, the speakers in your car, and propelling high speed trains, magnets are being used constantly. 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. It is a way of moving vehicles without having them touch the ground. T railway technology today 12 edited by kanji wako magnetic. The term maglev means transportation systems employing magnetic levitation that would be capable of safe use by the public at a speed in excess of 240. Other maglev trains are levitated by magnetic attraction. Using magnets for transportation vanderbilt university.
With maglev vehicles travel along a magnet guideway. Magnetic levitation transport article about magnetic. Apr 10, 2011 maglev space propulsion launching systems would use magnetic fields to levitate and accelerate a vehicle along a track. This is to certify that the work in the thesis entitled controller design for magnetic levitation system by abhishek nayak is a record of an original research work carried out by him under my supervision and guidance in partial fulfillment of the requirements for the. Design and construction of a magnetic levitation system using. Dynamic modeling, timedomain analysis, pi and pid feedback control. The magnetic levitation force is ideal for supporting a. In it, railroading technology will away with moving components, permitting vehicles to maneuver additional swimmingly and more. Magnetic levitation maglev or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields. The simulink model represents the humusoft ce152 magnetic levitation educational presentation scale model. Magnetic lifting machine a lifting machine is a magnetized set of steel components that act as. A high speed maglev train uses noncontact magnetic levitation, guidance and propulsion systems and has no.
Current projects nclusion introduction maglev, or magnetic levitation, is a system of transportation that suspends, guides and propels vehicles, predominantly trains, using magnetic levitation. Magnetic levitated trains could be the new high speed transportation. It is sometimes said to be the first fundamental innovation in the field of railroad technology since the invention of the railway. Download the seminar report for magnetic levitation. Modeling and control of a magnetic levitation system concepts emphasized. The maglev transportation system is more stable, faster, economic, efficient. This paper discusses the development of magnetic levitation vehicles in germany, japan, and the united states. Maglev can create frictionless, efficient, faroutsounding technologies. Magnetic levitation is a highly advanced technology. This increases efficiency, reduces maintenance costs, and increases the useful life of the system. Maglev, or magnetic levitation, is a system of transportation that suspends, guides and propels vehicles, predominantly trains, using magnetic levitation. The name maglev is derived from magnetic levitation.
Trends in increased mobility of large masses with changing lifestyle for more comfort are leading to congestion on roads with automobiles. Magnetic force is used to counteract the effects of the gravitational acceleration and any other accelerations. Introduction magnetic levitation is becoming widely applicable in magnetic bearings, highspeed ground transportation, vibration isolation, etc. This book provides a comprehensive overview of magnetic levitation maglev technologies, from fundamental principles through to the stateoftheart, and describes applications both realised and. Laser sensors provide noncontacting position feedback and incorporate proprietary conditioning to electronics for signal noise reduction and ambient light rejection. Different superconducting maglev and mhd systems will be described concentrating on, above all, the electromagnetic aspect. It employs diamagnetism, which is an intrinsic property of many materials referring to their. Imagine that instead of cars, people had small passenger vehicles that used propulsion and levitation magnets. Magnetic levitation system in control engineering education 155 the steps necessary to obtain the executable file from a controller model are shown in fig. The system takes advantage of the naturally stabilizing effect provided by electromagnet induction. Some maglev trains are levitated by magnetic repulsion. Some programmes occurring throughout world will be described. 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.
The magnetic levitation technology can be used as an efficient technology in. Maglev derived from magnetic levitation is a system of train transportation that uses two sets of magnets, one set to repel and push the train up off the track, and another set to move the elevated train ahead, taking advantage of the lack of friction. For this purpose a stand, a 12 volt electromagnet, eddy current displacement sensor which input voltage is 24 volt and output voltage range is 0 to 10 volt for 0 to 10 mm displacement, siemens logo plc setup board including cpu, cable, analog expansion module. Magnetic levitation maglev can create frictionless, efficient, faroutsounding technologies. A status monitor and diagnostic unit smdu 12 is provided in every car 14,16 of a magnetic levitation maglev train 18 or other vehicle, and includes sensors 38,40,42,44,48,52 for monitoring the operational status or condition of the car 14,16. It includes a history of maglev science and technology showing the various milestones in its advancement. Maglev derived from magnetic levitation uses magnetic levitation to propel vehicles. But superconductors can also be used to levitate vehicles for transport. Reaching the end of the track, the vehicle could switch to more conventional rocket engines. The term full project costs means the total capital costs of a maglev project, including eligible project costs and the costs of stations, vehicles, and equipment. Magnetic levitation principles introduction magnetic fields are used to describe forces at a distance from electric currents. Magnetic levitation is a method by which an object is suspended in the air with no support other than magnetic fields. The repelling magnets create lift and propulsion, reducing the amount of friction.
The physics of magnetic levitation physics 212x spring 2011 john dutton 04122011 magnets make up a huge part of our everyday lives. The common point in all applications is the lack of contact and thus no wear and friction. This book provides a comprehensive overview of magnetic levitation maglev technologies, from fundamental principles through to the stateoftheart, and. Magnetic levitation technique is found to be the main alternative to fossil fuels to overcome its less availability.
If magnetic repulsion is used, it is known as magnetic levitation. With maglev, a vehicle is levitated a short distance away from a guide way using magnets to create both lift and thrust. Citeseerx document details isaac councill, lee giles, pradeep teregowda. The basic idea behind an electromagnet is extremetric ly simple, by running elec current through a wire. Magnetic levitation captionovercoming the pull of gravity and fighting acceleration are major challenges for scientists looking. Magnetic levitation and mhd propulsion are now attracting attention in several countries. Fire safety requirements for electrical equipment including that of trolley buses, track guided buses and magnetic levitation vehicles british standard. The fields are used to reverse or counteract the gravitational pull and any other counter accelerations. Magnetic levitation maglev is an innovative transportation technology. If the magnetic force of attraction is used, it is known as magnetic suspension. The only current application of this is the maglev train. Magnetic levitation is the process of levitating an object by exploiting magnetic fields. With maglev, a vehicle is levitated a short distance away from a guide way using magnets to create both thrust and lift. The motivation of this paper is to design and fabrication a cost effective magnetic levitation shortly called maglev system using plc.
Us5445347a automated wireless preventive maintenance. Practical applications of magnetic levitation technology. The term levitation refers to a class of technologies that uses magnetic levitation to propel vehicles instead of using wheels, axles and bearings as used in the regular vehicles. Magnetic levitation is a way of using electromagnetic fields to levitate objects without any noise. It is a type of magnet in which the magnetic field is produced by electric current. This paper discusses the development of magnetic levitation vehicles in. Magnetic levitation and mhd propulsion hal archive ouverte. The magnetic levitation by zero power control is effective in guiding the elevator car. Background the first patent for a magnetically levitated vehicle was granted in 1968 to u.
This paper involves the design, hardware, technology, application and future uses of magnetic levitation trains. Apr 28, 20 magnetic levitation is cited on microsoft academic search as follows. Mar 21, 2012 magnetic levitation maglev can create frictionless, efficient, faroutsounding technologies. No controlling devices whatsoever are needed to keep the train on its guideway, and there is no risk of the train derailing.
Maglev is short for magnetic levitation, and its a way of. Magnetic levitation vehicles electromagnetic and magnetic. Here are some of the craziest uses that engineers and designers have dreamed up. This book provides a comprehensive overview of magnetic levitation maglev technologies, from fundamental principles through to the stateoftheart, and describes applications both realised and under development. In the past, magnetic levitation was attempted by using permanent magnets. Describe how the magnets for magnetic repulsion are used differently than the magnets that are used for magnetic attraction. The magnet unit for zero power control comprises permanent magnets and electromagnets. Trends in increased mobility of large masses with changing lifestyle. Magnetic levitation, maglev, or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields. Dec 24, 2015 magnetic levitation captionovercoming the pull of gravity and fighting acceleration are major challenges for scientists looking to achieve flight andor highspeed transportation. 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.