Background the first patent for a magnetically levitated vehicle was granted in 1968 to u. Magnetic levitation is a method by which an object is suspended in the air with no support other than magnetic fields. Describe how the magnets for magnetic repulsion are used differently than the magnets that are used for magnetic attraction. Magnetic levitation system in control engineering education 155 the steps necessary to obtain the executable file from a controller model are shown in fig. Using magnets for transportation vanderbilt university. Magnetic levitation vehicles electromagnetic and magnetic. The fields are used to reverse or counteract the gravitational pull and any other counter accelerations. Imagine that instead of cars, people had small passenger vehicles that used propulsion and levitation magnets. The magnetic levitation by zero power control is effective in guiding the elevator car. But superconductors can also be used to levitate vehicles for transport.
It employs diamagnetism, which is an intrinsic property of many materials referring to their. The maglev transportation system is more stable, faster, economic, efficient. Apr 28, 20 magnetic levitation is cited on microsoft academic search as follows. Trends in increased mobility of large masses with changing lifestyle for more comfort are leading to congestion on roads with automobiles. This book provides a comprehensive overview of magnetic levitation maglev technologies, from fundamental principles through to the stateoftheart, and. 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.
Maglev derived from magnetic levitation uses magnetic levitation to propel vehicles. Different superconducting maglev and mhd systems will be described concentrating on, above all, the electromagnetic aspect. The only current application of this is the maglev train. Magnetic levitation is a highly advanced technology. If magnetic repulsion is used, it is known as magnetic levitation. Trends in increased mobility of large masses with changing lifestyle. With maglev, a vehicle is levitated a short distance away from a guide way using magnets to create both thrust and lift. The repelling magnets create lift and propulsion, reducing the amount of friction. T railway technology today 12 edited by kanji wako magnetic. In it, railroading technology will away with moving components, permitting vehicles to maneuver additional swimmingly and more. Dynamic modeling, timedomain analysis, pi and pid feedback control.
Us5445347a automated wireless preventive maintenance. Practical applications of magnetic levitation technology. With maglev, a vehicle is levitated a short distance away from a guide way using magnets to create both lift and thrust. Introduction magnetic levitation is becoming widely applicable in magnetic bearings, highspeed ground transportation, vibration isolation, etc. The physics of magnetic levitation physics 212x spring 2011 john dutton 04122011 magnets make up a huge part of our everyday lives. 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. It is a type of magnet in which the magnetic field is produced by electric current. 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.
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. It includes a history of maglev science and technology showing the various milestones in its advancement. Magnetic levitation principles introduction magnetic fields are used to describe forces at a distance from electric currents. This paper discusses the development of magnetic levitation vehicles in.
If the magnetic force of attraction is used, it is known as magnetic suspension. Magnetic levitation is the process of levitating an object by exploiting magnetic fields. Maglev derived from maglev could be a conveyance technology that uses magnetic levitation to move vehicles while not creating contact with the bottom or an electrical pickup. The simulink model represents the humusoft ce152 magnetic levitation educational presentation scale model. The magnetic levitation force is ideal for supporting a. Download the seminar report for magnetic levitation. Maglev can create frictionless, efficient, faroutsounding technologies. Laser sensors provide noncontacting position feedback and incorporate proprietary conditioning to electronics for signal noise reduction and ambient light rejection. This book provides a comprehensive overview of magnetic levitation maglev technologies, from fundamental principles through to the stateoftheart, and describes applications both realised and. Modeling and control of a magnetic levitation system concepts emphasized. The name maglev is derived from magnetic levitation. 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. Magnetic levitation maglev is an innovative transportation technology.
This paper discusses the development of magnetic levitation vehicles in germany, japan, and the united states. Other maglev trains are levitated by magnetic attraction. 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. Current projects nclusion introduction maglev, or magnetic levitation, is a system of transportation that suspends, guides and propels vehicles, predominantly trains, using magnetic levitation.
The magnetic levitation technology can be used as an efficient technology in. 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. The system takes advantage of the naturally stabilizing effect provided by electromagnet induction. Mar 21, 2012 magnetic levitation maglev can create frictionless, efficient, faroutsounding technologies. Magnetic levitation and mhd propulsion are now attracting attention in several countries.
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. Magnetic levitation and mhd propulsion hal archive ouverte. This increases efficiency, reduces maintenance costs, and increases the useful life of the system. Fire safety requirements for electrical equipment including that of trolley buses, track guided buses and magnetic levitation vehicles british standard. Some programmes occurring throughout world will be described. In the past, magnetic levitation was attempted by using permanent magnets. This paper involves the design, hardware, technology, application and future uses of magnetic levitation trains. Apr 10, 2011 maglev space propulsion launching systems would use magnetic fields to levitate and accelerate a vehicle along a track. Maglev is short for magnetic levitation, and its a way of. With maglev vehicles travel along a magnet guideway. The common point in all applications is the lack of contact and thus no wear and friction. 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. The basic idea behind an electromagnet is extremetric ly simple, by running elec current through a wire. Reaching the end of the track, the vehicle could switch to more conventional rocket engines.
It is sometimes said to be the first fundamental innovation in the field of railroad technology since the invention of the railway. Along certain mediumrange routes usually 320 to 640 km 200 to 400 mi, maglev can. 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. Here are some of the craziest uses that engineers and designers have dreamed up. 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. No controlling devices whatsoever are needed to keep the train on its guideway, and there is no risk of the train derailing. The motivation of this paper is to design and fabrication a cost effective magnetic levitation shortly called maglev system using plc. It is a way of moving vehicles without having them touch the ground. Magnetic levitation captionovercoming the pull of gravity and fighting acceleration are major challenges for scientists looking. Magnetic levitation, maglev, or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields. Magnetic levitation transport article about magnetic. Citeseerx document details isaac councill, lee giles, pradeep teregowda. Magnetic levitation technique is found to be the main alternative to fossil fuels to overcome its less availability. Magnetic levitation maglev or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields.
A high speed maglev train uses noncontact magnetic levitation, guidance and propulsion systems and has no. The magnet unit for zero power control comprises permanent magnets and electromagnets. From the ones on the fridge, the speakers in your car, and propelling high speed trains, magnets are being used constantly. Applications and future of magnetic levitation high tech point. Magnetic force is used to counteract the effects of the gravitational acceleration and any other accelerations. Magnetic levitation is a way of using electromagnetic fields to levitate objects without any noise. Design and construction of a magnetic levitation system using. Magnetic lifting machine a lifting machine is a magnetized set of steel components that act as. 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.
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