Projet design principles highspeed maglev system eisenbahn. Magnetic tracks the last part of the maglev track is the magnetic tracks on both sides of the bottom of the track. Diagram showing a simplified arrangement of electromagnets to levitate a train. The full form and the basic working principle of maglev is called magnetic levitation. The working principle relies on exploiting the electromagnetic forces arising between a nonmagnetic conductor and a constant magnetic field due to relative motion to achieve levitation. Maglev train floats on a magnetic field and it is propelled by linear induction. Design and construction of a magnetic levitation system. Maglev 1 magnetic levitation experiment quanser consulting inc. The further a maglev train gets from its normal position between the guideway walls, the stronger the magnetic force pushing it back into place becomes. The project may be a multiyear project, because the entire system must be created. Figure 2a shows the basic block diagram of an onwheel rail system. At first we will talk about the theory on how to achieve the suspension of a magnet in. 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 is a system of train transportation that uses two sets of magnets, one set to repel and push the train up off the track as in levitation, then another set to move the floating train ahead at great speed taking advant. The reason for choosing the inductrack method and a basic explanation of the inductrack method for magnetic levitation are given. The magnets provide support without contact or friction, allowing for fast, quiet operation. Anderson and morten ring eskildsen department of phyy,sics, university of notre dame, notre dame, indiana 46656, usa what is a superconductor. The method currently being pursued is a passive levitation and guidance system that is controlled by the propulsion of the train. In this project you will build a magnetic levitation maglev for short train that floats above a magnetic track. Despite their promising characteristics, rotors supported by edbs are affected by different types of instabilities that must be taken into account. Pdf this paper involves the design, hardware, technology, application and future uses of magnetic levitation trains. The principle that bullet train work on is magnetic levitation and magnetic suspension. Build a magnetic levitating maglev train and measure how much weight it can hold before it touches the tracks.
The principle and working of maglev train with lateral guidance, levitation and propulsion system is discussed. Diagram showing the physical setup of the maglev cradle. This documents lays down the technical and operational minimum. Each implementation of the magnetic levitation principle for traintype travel involves advantages and. The coaches of the train do not slide over steel rails but float on a four inch air cushion above the track using meissner effect of super conducting magnets.
Modeling and control for a magnetic levitation system. Modeling and control of a magnetic levitation system. Magnetic levitation is requirement of future because in magnetic levitation train fly in the air, balancing by lift and drag forces. Highspeed movement is a result of magnetic levitation while propulsion is provided by the fine placement of electromagnets in the form of coils. Magnet that use in magnetic levitation may be permanent magnet or electromagnet. The theory also shows levitation of loads approaching 50 times the weight of the magnets, important for reducing the cost relative to maglev vehicles. The specified maintenance actions must have an instruction manual for their.
Magnetic levitation maglev or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields. If a small magnet is brought near a superconductor, it will be repelled becaused induced supercurrents will produce mirror images of each pole. The train has a superconducting magnet built into the base of the carriages. Maglev derived from magnetic levitation is a transport method that uses magnetic levitation to move vehicles without making contact with the ground. Railway technology today 12 edited by kanji wako magnetic levitation maglev technologies the tokaido shinkansen began operations in 1964 and was an immediate success. Magnetic levitation principles introduction magnetic fields are used to describe forces at a distance from electric currents. The ball elevation from the post is measured using a sensor embedded in the post. We have written many articles about magnetic levitation for universe today. Applications and future of magnetic levitation high tech. The vehicle on top of the track may be propelled with the help of a linear. Train 1 project is to design and implement levitation, guidance, and propulsion for a small scale train. The magnetic field created in this wireandbattery experiment is the simple idea behind a maglev train rail system. Maglev derived from magnetic levitation is a system of train transportation that uses two sets.
The maglev transportation system is more stable, faster, economic, efficient. This presentation describes about the basic working of maglev train. The loops are made of conductive materials, like aluminum, and when a magnetic field moves past, it creates an electric current that. 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. Maglev can create frictionless, efficient forout sounding technologies. Magnetic levitation track construction instruction manual august 2012 page 5 3. In a typical system, the vehicle, which resembles a railroad car, travels above a guideway. If you disconnect either end of the wire from the battery, the magnetic field is taken away. A superconductor is a material which conduct an electric current without resistance. Principle of propulsion make the train of pine wood and stick themagnets on them also in the same way and maintain equal distance. Maglev systems are currently in use for applications such as bearings, highspeed trains, and manufacturing. 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. Magnetic levitation magnetic fields are actively excluded from superconductors meissner effect. Engineers can use this scientific principle to create very fastmoving trains.
This paper discusses the propulsion technology of magnetic levitation train from an electrical engineering point of view. Magnetic levitation track construction instruction manual. Also, the bottom poles of the magnets can create a field canceling somewhat the levitation effect. T railway technology today 12 edited by kanji wako. If a small permanent magnet is placed above a superconductor, it can be levitated by this repulsive force. It also highlighted the potential of maglev train in developing country like nigeria with an emerging economy in the african region. Basic principle of maglev trains maglev trains have to perform the following functions to operate in. The worlds fastest japanese sc maglev train stay updated.
The raising of an object into the air without physically supporting the object. Development history in the early development stages, superconducting magnet technology was considered an esoteric technical field and some people assumed that the technology could never be used for commercial train travel. At every step in this project, look to see if lines are straight and magnets are. Keywords magnetic levitation, model of magnetic levitation, modeling of magnetic levitation system.
The principle of magnetic levitation has been known for over 100 years. One electromagnet pole faces a black post upon which a 2. Maglev bearing a magnetic bearing is a bearing which supports a load using magnetic levitation. Magnetic bearings support moving machinery without physical contact, for example, they can levitate a rotating shaft and permit relative motion with very low friction and no mechanical wear. In the late 1940s, professor eric laithwaite of imperial college in london developed the first fullsize working model of the linear induction motor. The big difference between a maglev train and a conventional train is that maglev trains do not have an engine at least not the kind of engine used to pull typical train cars along steel tracks. Simple magnetic levitation train seminar reportpdf ppt download the answer to this transportation problem lies in the world of electro magnetism and superconducting magnets. Rtri and jr central are working together to develop. A full trip on the shanghai transrapid maglev train. Hence, off i go creating a simple pull type magnetic levitation project. Pdf magnetic levitation is a way of using electromagnetic fields to levitate objects without any noise. Modeling and control of a magnetic levitation system by.
If the system were to lose power, the train would remain stably levitated until it slows to walking speeds, at which point it would settle down on auxiliary wheels. Similarly, traditional train derailments that occur because of cornering too quickly cant happen with maglev. Abstract magnetic levitation technology has been receiving increasing attention because it helps eliminate frictional losses due to mechanical contact. Electromagnetic suspension and electrodynamic suspension are only two types of magnetic levitation and many other forms exist and even more are still likely to be. The documentation comprises the msb design principles listed in the table below. Maglev system represent a promising evolution in highspeed ground transportation, offering speed in excess of 500 mph along with the potential for low operating costs and minimum environmental impact. After building, you will need to make adjustments to get it working perfectly. Magnetic levitation methods and modeling in maglev trains. The motivation of this paper is to design and fabrication a cost effective magnetic levitation shortly called maglev system using plc. Modeling and control for a magnetic levitation system based on simlab platform in real time. Heres an article about the uses of electromagnets, and heres an article about how magnets work. A substrate is not essential for levitation, but it provides a convenient assembly platform. Pdf in this paper an overview to magnetic levitated train is presented. Since then, japans shinkansen network has expanded considerably, and its success has prompted rapid development of highspeed railways in other countries.
The principle and working of maglev train with lateral guidance. Magnetic levitation technology is a perfect solution to achieve better performance for many motion systems. The aim of this thesis was to investigate magnetic levitation and to design a working system capable of levitating an object from below. Much like a fullsized maglev system, the track and train need to be precisely matched to work. Experimenting with maglev models and other magnetic levitation. Maglev is a method of propulsion that uses magnetic levitation to propel vehicles with magnets rather. The passengers would need to activate a manual release mechanism and. 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. Simple magnetic levitation train seminar reportpdf ppt. Magnetic levitation fascinates me since i was a child.
Magnetic levitation an overview sciencedirect topics. The objective of this project is the creation of a laboratory scale magnetic levitating train. Magnetic trains work through a process called magnetic levitation which makes the name maglev a train in japan whose top speed is 581 kmh the magnetic field on the line interacts with the. He became professor of heavy electrical engineering at imperial college in 1964, where. The passengers would need to activate a manual release mechanism and then the. The engine for maglev trains is rather inconspicuous. The reduction can become significant for thinner magnets, but can be. 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. A maglev train levitates above the ground and is propelled at speeds of up to 300 miles per hour by powerful superconducting electromagnets. Build a magnetic levitating train that can balance on a magnetic track without falling. Development of linear motorpropelled, contactless maglev systems is. The most spectacular applications of this would be maglev trains. This core feature is whats most exciting to jesse powell. According to this there is no contact between track and wheel, so frictional loss in drive is negligible.
The magnetic levitation force is ideal for supporting a train at very high speeds. Magnetic levitation is cited on microsoft academic search as follows. 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. The principle of magnetic levitation is that a vehicle can be suspended and propelled on a guidance track made with magnets. Along certain mediumrange routes usually 320 to 640 km 200 to 400 mi, maglev can compete favorably with highspeed rail and airplanes. Download this books into available format 2019 update. Magnetic levitation methods and modeling in maglev trains 1shweta singh, 2aradhana singh. These magnetic fields interact with simple metallic loops set into the concrete walls of the maglev guideway.