Direct power control for electric railway systems alexander bueno, jose m. The worlds first electric rack railway is installed at the montsaleve near geneva, using 500 v dc. Also, measurements of electrical and magnetic fields inside the traction substation and in its vicinity were undertaken. 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. Introduction classification electric traction railway traction third rail system overhead system traction is defined as. Railway traction systems alternating current electric motor. Current status and apportunities 49 passenger traffic and 65. On false data injection attacks against railway traction. Economics of electric vs diesel traction railelectrica. A predecessor company of abb secheron in geneva supplies the first electric tramcars in france to the city of clermontferrand. It connects with the douglas bay horse tramway at its southern terminus at derby castle at the northern end of the promenade in douglas, and with the snaefell mountain railway at laxey. In this paper, we study the cybersecurity of direct current dc traction power sys. Ingeteam is a market leader specializing in electrical engineering and the development of electrical equipment, motors, generators and frequency converters. 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.
By electric traction is meant locomotion in which the driving or tractive force is obtained from electric motors. The line is undulating and passes through areas of scenic beauty. Electric railways use either electric locomotives hauling passengers or freight in separate cars, electric multiple units passenger cars with their own motors or both. Use features like bookmarks, note taking and highlighting while reading electric traction for railway trains. Modeling of electric railway vehicle for harmonic analysis. Briefly described, an electric railway is a combination of a source of electric energy, means for transmitting it to vehicles along a right of way, including the raising and lower ing of electrical pressures and conversion of type of current, and motors on the. A railway electrification system supplies electric power to railway trains and trams without an onboard prime mover or local fuel supply. Power is transmitted to electric railway and trains using dc. Review of characteristics of different types of dc and ac motors. Electric traction has many advantages as compared to other nonelectrical systems of traction including steam traction. Ppt electric traction system powerpoint presentation.
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. 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. On electrifications, technologically strong solutions were implemented until ones with. Habetler, fellow, ieee abstractthis work presents a general. Restrepo, member, ieee, ronald harley, fellow, ieee, and thomas g.
Distribution of the traction return current in at electric. The drive which uses the electric power for moving forward, such type of drive is called an electric traction drive. Or electric traction means a locomotion in which the driving force is obtained from electric motors. Published by traction orange company, wheaton, il 1966.
Railway traction system pdf different types of railway traction and their importance in the. Pdf dc traction load flow including ac distribution network. Jun 27, 20 electric traction the system which use electrical power for traction system i. A railway electrification system supplies electrical energy to railway. Fashion, politic or strategic choices also influenced notably the evolution of electric traction.
What is an electric locomotive systems and their types in india. Most supply authorities have agreed to ignore such temporary. There are many other voltage systems used for railway electrification systems around the world, and the list of current systems for electric rail traction covers both standard voltage and nonstandard voltage systems. Latest system technologies for railway electric cars. The trend of electrical and diesel energy cost in terms of unit charges and rslitre as compiled in the annual statistical statement of indian railways is as follows. It is used in electric trains, tramcars, trolley buses and diesel electric vehicles etc. The tubes of the original line had a 10 ft 2 in diameter compared to the 11 ft 8. Electricity is typically generated in large and relatively efficient generating.
Pdf version75kb tokyo, april 30, 2014 mitsubishi electric corporation tokyo. Traction power consumption analysis to investigate freight train. Economics of electric vs diesel traction on account of fuel cost is evaluated based on the rupees spend towards energy bill for hauling gtkm of load. Electric railway traction systems and techniques for energy. Although experimental electric motors were built more than a century ago electric traction is a modern development. If we ignore resistance, the equation governing the current during theon period is. The railway traction systems under study, taking account of all the processes of.
Electric traction the system which use electrical power for traction system i. In an electric traction system the driving force to pull a train is generated by the traction motors. Electric traction will continue to play a dominant role in the railway since it is an. There are various systems of traction prevailing in our country such as steam engine drive, electric drive. Ppt electric traction system powerpoint presentation free.
Comments on the regional railroad network and power grid interconnection pdf. Analysis of the electric locomotives neutralsection passing. What is an electric locomotive systems and their types in. The single phase 50 hz power for the electric traction is obtained from 220211066 kv extra high voltage 3phase grid system through step down single phase transformers. Electric traction system 1 electric traction system presented by amit raj roll no. Railway technology today 3 edited by kanji wako railway.
Railway and electric traction history is closely linked with the electrotechnic development rhythms, in particular transformers, motors and semiconductors. Optimization of train speed profile for minimum energy consumption. In 1881, siemens halske built the worlds first electric railway in lichterfelde marking the first passenger electric railway. In simulation study, the tractionlocomotive system was divided into four transient processes by the physical process of the electric locomotives neutralsection passing, to establish equation. Traction transformer is applied to railway as a power supply for electric power train. Electric railway traction systems and techniques for. Harmonic and unbalance compensation based on direct power. Introduction requirements of a traction system control of dc motors electronic speed control methods for dc motors pulse width modulation braking operation in dc motors conclusion references introduction traction motor refers to an electric motor providing the primary rotational torque of a machine, usually for conversion into linear. If electric supply is used for driving a locomotive, the system is known as electric traction. Rail transport is coming back into favour for the transportation of goods over long distances.
E consulting engineer, professor of electric railway engineering. However, it is safe to ignore these transients because they can settle. System of electric traction mechanics of train movement. The introduced methods ignore some important conditions, espe. The system which use electrical power for traction system i. On the nationalisation of the railways in 1948 he was appointed chief electrical engineer to the railway executive, and relinquished this post in 1950 to become general manager of the traction department of the english electric co. 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. Traction motors in diesel locomotives ee publishers. The shift to domestic production of electric equipment for public trams was going forward at the time, but these were simply exact copies. Mitsubishi electric news releases,mitsubishi electric to. The city and south london tube railway was opened in 1890, and marked the progress of electric traction.
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. They are also used in electric vehicles, such as electric. A book for students, electrical and mechanical engineers, superintendents of motive power and others. Electric vehicle and electric motor traction motor refers to a type of electric motor. This model is integrated to the traction power supply system as discussed in previous section. 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.
Thomas davenport, in brandon, vermont, erected a circular model railroad on which ran batterypowered locomotives or locomotives running on batterypowered. An electric locomotive is a locomotive powered by electricity from overhead lines, a third rail or. Electric traction electrotechnics and electrification jeanmarc allenbach 2. This article takes a look at the role that electric motors play in this sector of the transport industry. Tokyo, april 30, 2014 mitsubishi electric corporation tokyo. The manx electric railway is an electric interurban tramway connecting douglas, laxey and ramsey in the isle of man.
Latest system technologies for railway electric cars 162 materials, structure, and manufacturing methods to develop a new kind of rolling stock that meets the needs of today to reduce environmental impact, minimize lifecycle costs, and are adapted to the projected shrinking pool of. Feb 20, 2018 dc traction dc traction units use direct current drawn from either a conductor rail or an overhead line. 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. Electric traction railways free download as powerpoint presentation. This book is a reproduction of that original, which has been scanned and cleaned by stateoftheart publishing tools. In the line subsection the minimum curve radius is 1600m. Traction electric drive for railway application has to provide the adjustment of both rotor speed and. Tomytec co ltd series 115 300 4car suburban commuter trainonly set standard dc tomix addon set a japanese national railways jrjnr shonan scheme, green, orange.
The mechanics involves conversion of overhead electrical powerdieselsteam power in rail horse power to haul a train encountering acceleration, train, grade, curve resistance and similarly braking. Act of drawing or state of being drawn propulsion of vehicle is called tractions. Act of drawing or being drawn is known as traction. The track electrification refers to the type of source supply system that is used while powering the electric locomotive systems. Request pdf electric railway traction systems and techniques for energy saving energy saving in the railway sector is a major consideration for current operators.
Design and testing of 25 kv ac electric railway power. They ignore the power transients of the trains due to their internal. Developments in traction systems university of birmingham. They are also used in electric vehicles, such as electric milk. Distribution of the traction return current in at electric railway systems article in ieee transactions on power delivery 203. The optimal operation of railway systems minimizing total energy consumption is discussed. Download it once and read it on your kindle device, pc, phones or tablets. 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.
Network line lengths and proportion of electrical railway systems 2003 dc 1500 v 15,320 km 6. Dc traction dc traction units use direct current drawn from either a conductor rail or an overhead line. Electric locomotive in hindi electric traction youtube. The trend of electrical and diesel energy cost in terms of unit charges and rslitre as compiled in the annual statistical statement of. Powerelectronics issues of modern electric railway systems. The permissible range of voltages allowed for the standardised voltages is as stated in standards bs en 50163 and iec 60850.
One of the major application of an electric drive is to transport men and materials from one place to another. Traction motor simple english wikipedia, the free encyclopedia. Electric traction current, car, railway, motor, motors. Scribd is the worlds largest social reading and publishing site. Its primary side is connected with two phases of the threephase power grid. A traction motor is used to make rotation torque on a machine. The phase i of california highspeed train project chstp to be implemented between san francisco and anaheim will be a 520 routemiles long stateoftheart rail system providing intercity travel with modern highspeed trains running at speeds up to 220 miles per hour. This model is integrated to the traction power supply system as. Modeling of electric railway vehicle for harmonic analysis of. The electric traction system can be broadly divided into two groups. Analysis of the electric locomotives neutralsection. 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.
Railway traction systems alternating current electric. Electric traction 1701 however, the steam locomotive suffers from the following disadvantages. Thomas davenport, in brandon, vermont, erected a circular model railroad on which ran batterypowered locomotives or locomotives running on batterypowered rails in 1834. Railway traction, reliability and safety in railway, xavier perpinya, intechopen, doi. The most popular line voltages for overhead wire supply systems 1500v dc and 3000v dc. Optimising power management strategies for railway traction. Electric equipment of privaterailway highspeed emus was comprised mostly of imports. Traction motors are used in electrically powered rail vehicles such as electric multiple units and electric locomotives. Electric locomotivestraction trains show categories. Traction electric drive for railway application has. In simulation study, the traction locomotive system was divided into four transient processes by the physical process of the electric locomotives neutralsection passing, to establish equation. Power supply installation in electric traction irieen. The results agree with the actual situation that train operation governs the variations of traction loeds in the electric railway system. Modeling and detecting false data injection attacks against.