System of electric traction mechanics of train movement. Of necessity, the study is based on primary source materials, including railway pamphlets, trade journals such as the electric rai journal, personal interviews, texas. The track electrification refers to the type of source supply system that is used while powering the electric locomotive systems. The diesel and electric locomotive story and working 24 coaches. Italian railways were the first in the world to introduce electric traction for the entire length of a mainline rather than just a shor. Sicbased power electronic traction transformer pett for.
In a time before the automobile, the electrified interurban was seen as the future in suburban transportation. This experiment is guided towards stem education and. The proposed route would parallel the southern pacific railroads tracks through the willamette valley. Abb provides high performance traction converters for use in the demanding onboard railway business. This motion is dependent on the track geometry and the traction equipment characteristics. Pdf electric railway motors download full ebooks for free. This study demonstrates that within the neighbourhood of an electric railway network, the journey. Regenerative braking is studied in this dc electric network using nodal analysis na and the load flow lf method. In the last few decades, the power demand of electric railways for freight and passenger transport has increased due to the need for effective and quiet transportation systems. Lewis incorporated the oregon electric oe railway on may 14, 1906. The choice of the system depends on the train service requirements. Operation was brought out by institute of railway electrical engineers iree long back. Electric traction will continue to play a dominant role in the railway since it is an. Electric traction electrotechnics and electrification jeanmarc allenbach 2.
Italian railways were the first in the world to introduce electric traction for the entire length of a mainline rather than just a short stretch. Traction motors traction motors and generators abb. Download full modern electric railway practice book or read online anytime anywhere, available in pdf, epub and kindle. Jun 27, 20 electric traction the system which use electrical power for traction system i. Most of the railway line is electrified, which increases the demand for electricity. Speed time, distance time and simplified speedtime curves, attractive effort for acceleration and propulsion, effective weight, train resistance, adhesive weight, specific energy output and consumption. Electric power shall be supplied to the vehicles from the wayside contact rail system installed parallel to each track. Traction systems for light rail vehicles selected references english pdf. Electrical railway transportation systems wiley online books. Pdf basic modeling for electric traction systems under. A contact wire or contact cable actually carries the electricity.
The traction inverter system, highlighted in red, is described in detail in the following sections. In recent years, as much telecommunication cabling has been moved away from railway lines or relaid underground, interference from the electric traction system is not as much of a problem as it used to be in the past, and therefore in many cases the booster transformers and return conductors have been removed and the traction system has been. In case of steam traction break blocks and wheels are likely to overheat on continuous. The railway operated from 1917 until 1948, although the company was not dissolved until 1955. Pdf modern electric railway practice download full. Class re 460 modernization program of swiss federal railways sbb energy storage systems to power a new wave of electric transport. Click get books and find your favorite books in the online library. Thomas davenport, in brandon, vermont, erected a circular model railroad on which ran batterypowered locomotives or locomotives running on batterypowered rails in 1834. Scranton, montrose and binghamton railroad wikipedia. Review of characteristics of different types of dc and ac motors used traction and their suitability moduleiv 10 hours rating and heating of electric drives, power loss, heating and cooling of motors, classes and duty and selection of motors, drives for specific application like steel, paper, textile mills. Abb offers a traction motor portfolio to build perfect solution for train operators regardless of train type, power. Railway electrification as a means of traction emerged at the end of the nineteenth century, although experiments in electric rail have been traced back to the midnineteenth century.
Electric traction railway electrification encourages rural electrification as no special transmission line has to be run for this purpose. Swigert, a street railway magnate in portland, would become president. Pdf powerelectronics issues of modern electric railway. Performance characteristics of conductors for electric. This book presents a thorough survey of electric railway development from the earliest days of the london underground to modern electrified main line trains.
Or electric traction means a locomotion in which the driving force is obtained from electric motors. Railway applications fixed installations electric traction overhead contact lines this european standard applies to electric traction overhead contact line systems in heavy railways, light railways, trolley busses and industrial railways of public and private operators. Neosee boxes should manage the internal voltage of tramway whatever. There are many good reasons to use electrified railway systems. Modeling and simulation of an autonomous railway electrical. Jun 18, 20 dc traction units use direct current drawn from either a conductor rail oran overhead line. Electric traction in india indian railways system covers a network of 64,600 route kilometers approx. The shortlived oregon traction company began grading for such a line in 1905, but it was the oregon electric railway that brought the plan to fruition. Thomas davenport, in brandon, vermont, erected a circular model railroad on which ran batterypowered locomotives or locomotives running on batterypowered. Traction rolling stock indian railways institute of electrical. Oct 30, 2008 chapter 1 traction power equipment interim release rev 1 1.
New conditions have set new standards in railway travel. Traction system for dc electric trains auxiliary power system for mta new york city transit electric train equipment for the northern indiana commuter. Current status and apportunities 49 passenger traffic and 65. The key blocks of an ev powertrain system are the electric motor, the traction inverter drive, the dcdc converter, the liion battery, the acdc gridtied onboard charger obc, and controllers mcu and pmic, as shown in figure 3. Several different type of railway traction electric power system configurations have been used in the usa and all over the world.
This first article covers the nature of the traction load, the requirements of the traction duty cycle and power electronic controlled traction. Coverage includes chapters on signaling and communications, power supplies, and a detailed survey about traction systems, both ac and dc. Hevev traction inverter design guide using isolated igbt. In this way, the reliability supply is improved and allows flexibility for maintenance of ts. Numerous efforts to use traction induction drive instead of obsolete and unserviceable dc motors with 18 step power circuit breakers with power starting resistors were not reliable.
Currents and voltages were calculated in 25 kv and 110 kv network. The result is a fascinating and cheap experiment that displays the basic principles of electromagnetism and engineering. Create free account to access unlimited books, fast download and ads free. Indian rail uses only two phases from threephase electric power supply to fed. Electrical modelling of a dc railway system with multiple trains. Committee meeting royal meteorological society spring 2009 pdf. These equations are relatively simple which does not mean that railway dynamics is a simple. Energy storage systems to power electric transport. The detailed traction system can be described by dividing it into three sections such as three phase supply system, traction substation and locomotive system which is described as follows. Page 647 with constant potential, directcurrent circuits not exceeding 750 volts, the minimum spacing shall be ten inches 0 10.
In this study, a dc railway is modelled with two parallel railway tracks. Pdf the objective of this paper is initially to present a basic modeling of the railway traction system. Some electric traction systems provide regenerative braking that turns the trains kinetic energy back into electricity and returns it. Some of the technical discussion is based on work that has been reported in a conference publication1. Power system modelling for urban massive transportation systems. Traction drives with threephase induction motors abstract. The most popular line voltages for overhead wire supply systems 1500vdc and 3000v dc.
Massachusetts institute of technology 1 introduction this is a concept paper in response to the foa entitled rare earth alternatives in critical technologies for energy react. An electric locomotive is a locomotive powered by electricity from overhead lines, a third rail or onboard energy storage such as a battery or a supercapacitor electric locomotives with onboard fueled prime movers, such as diesel engines or gas turbines, are classed as diesel electric or gas turbine electric and not as electric locomotives, because the electric generatormotor combination. Optimising power management strategies for railway. Abb traction and battery technologies to drive stadlers trains of tomorrow. Modelling of 25 kv electric railway system in emtp. This article describes dcfed and acfed railway traction drives with threephase induction motors, including the operation of the csi, vsi and pulse converter. Powerelectronics issues of modern electric railway systems. Which of the following is the voltage for single phase a. A bullettrain electrical substation supports stable transport of the shinkansen, a form of highspeed mass transit. This is exemplified in the rapid development of electric suburban train services for the new built up areas spreading in all directions round large cities. In ohe, or overhead electrification systems, the supply of electricity is through an overhead system of suspended cables known as the catenary. Modeling and simulating the electric power system of an autonomous tramway, supplied either.
Electric traction there is a wide variety of electric tractionsystems around the world, which have been built according to the type of railway, its location and the technology available at the time of the installation. Chapter 1 railway electrification system chapter 2 traction power network chapter 3 railway electric traction chapter 4 electric locomotive chapter 5 pantograph rail chapter 6 electric multiple unit chapter 7 trolley pole chapter 8 third rail chapter 9 overhead lines chapter 10 groundlevel power supply. A history of the texas electric railway, 19171955 unt. The dynamic performance of vsifed drives depends on the accompanying motor control scheme. The electric railway system including locomotives equipped with diode rectifiers was modeled using emtprv software. Comments on the regional railroad network and power grid interconnection pdf. Meidenshas electric railway equipment is playing a part in this advance.
The electric traction mostly operates at 25kv, single phase, a. Studies electric traction railway vehicles, presenting various types of drives and auxiliary devices currently in circulation discusses solutions employed to ensure interoperability of vehicles that run along lines powered by different systems e. Talk of building a longdistance electric interurban railway south from portland along the west bank of the willamette river began in the 1890s. Design of power supply system in dc electrified transit.
Optimising power management strategies for railway traction. When supported by insulators of the disc or suspension type, the crossing span and the next adjoining spans shall be dead ended at the poles, or towers, supporting the crossing, span, so that at these poles, or towers, the insulators shall be used as. Electric power command facilities that support safe transport and electric power management systems for. Highspeed trains like the ice use proprietary train lines of dc 500700 v. A railway electrification system supplies electric power to railway trains and trams without an. As we all know, it is electric locomoti ves that are at the forefr ont of railway traction, while the diesel locomotive is kept for some very specific uses. Which of the following is an advantage of electric traction over other methods of traction. Some electric traction systems provide regenerative braking that turns the trains kinetic energy back into electricity and returns it to the. The articles cover traction drives with dc and ac traction motors, electrification systems, and railway signalling and control systems. Technologies for saving energy in railway operation. A book for students, electrical and mechanical engineers, superintendents of motive power and others by edward parris burch, first published in 1911, is a rare manuscript, the original residing in one of the great libraries of the world. The electric locomotive and electric motor coach may be regarded as natural developments that have followed steam traction. Pdf railway electrification systems and configurations. Review of traction and braking control for electric vehicle hiroshi fujimoto, junya amada and kenta maeda the university of tokyo graduate school of frontier sciences 515, kashiwanoha, kashiwa, chiba 2278561, japan email.
Recent trends in power electronics applications as. The development and advancement of power electronics and. The shortlived oregon traction company began grading for such a line in 1905, but it was the oregon electric railway that brought the plan to. The final decade of the 20 th century and the first decade of the 21 st century were marked by the enormous rise in high speed due to the huge leaps forward in electric locomotive technology. Electric braking is superior to mechanical braking because of less wear on brake shoes, wheels and track. Basic notions for the study of electric traction systems 17.
Hevev traction inverter design guide using isolated igbt and. The scranton, montrose and binghamton railroad company was an interurban railway, commonly referred to as the northern electric railway, which ran between downtown scranton, pennsylvania, and its suburbs to the northwest, including clarks summit, dalton, factoryville and montrose. This book is a reproduction of that original, which has been scanned and cleaned by stateoftheart publishing tools. Electric train experiment purpose to build an electric train, utilizing uninsulated copper wire, a battery, and powerful magnets. In contrast, dieselpowered trains use high amounts of energy for traction due to their heavyweight, which is a result of the onboard energy sources. The first electric streetcar railway in indiana, the lafayette street railway, opened in south bend on 30 august 1888. This series of tutorial articles explains the electrical and control engineering background in electric railways. Many installations seen today were first built up to 100 years ago, some when electric tractionwas barely out its diapers, so. Review of traction and braking control for electric vehicle. Railway, the richmond street and interurban railway, and the indianapolis coal traction company were predecessor companies.
Ac railway electrification systems an emc perspective. The system which use electrical power for traction system i. The dynamic performance of vsifed drives depends on the. This is an economic and social history of the texas electric railway, which operated three interurban lines branching out of dallas.
335 1533 144 169 1341 1307 522 1191 166 1808 1347 111 902 756 1307 100 711 1341 1592 1464 356 1705 1563 1111 1328 1397 74 331 201 1165 1732 857 1110 504 1567