Global electric traction motor market research report. Since the hybrid electric vehicle hev became mainstream with the launch of the toyota prius in 1997, the use of rare earth magnets in vehicle traction motors has become common. The passage of electric current through rolling bearings can lead to damage in a short period of time. Energy saving technologies for railway traction motors. Brushless dc motor design for electric traction system. Hvh250 series electric motors ev west electric vehicle. There are various systems of traction prevailing in our country such as steam engine drive, electric drive. Ppt electric traction system powerpoint presentation free. Oct 20, 2017 in electric traction drive, the drive is mainly by electric motors dc series motors which are fed from overhead distribution system generally. Permanent magnet dc traction motor with reconfigurable winding. Supply to the locomotive constitutes 15 kv and frequency of about 1623 to 25 cycles are used.
Information by type ac and dc, power rating 400 kw, application railways, electric vehicles, and others, and region forecast till 2023. Hence, it is possible to achieve higher acceleration of 1. Why do electric cars use ac motors instead of dc motors. Electric traction motor refers to type of electric motor which is used for the propulsion of a vehicle such as electric locomotive or electric vehicle. Application of synchronous motor as traction motor. Severeduty enclosed motors can be used in highly corrosive or excessively moist areas. This method is usually employed in electric traction as motors employed for traction work are usually two, four, six or more than this even. Rotors for high efficiency traction motors, society of automotive engineers world congress, april 22, 2009, detroit.
Rpi is not an authorized ge distributor and is not otherwise associated or affiliated with ge. A traction motor is used to make rotation torque on a machine. 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. It is used in electric trains, tramcars, trolley buses and dieselelectric vehicles etc. Such as traction motor in heavy machinery or propulsion motor in marine applications. Offers low viscosity, thermal ratings up to 180c, excellent stability and is not moisture sensitive. The limitations of the torque of the traction motor when powered by. Some of the technical discussion is based on work that has been reported in a conference publication1. Traction motors are used in electrically powered rail vehicles such as electric multiple units and electric locomotives. Electric traction has many advantages as compared to other non electrical systems of traction including steam traction. The speed and torque of the motor are controlled by varying the frequency, voltage and current applied to. Electric traction will continue to play a dominant role in the railway since it is an. Optimize your vehicle by cooling electric motors and.
Nothing stated in this brief is an official viewpoint of the us department of energy or any other official us government entity. Efficiency is as important in drive systems for hybrid electric vehicle drive motors as it is for industrial. Global electric vehicle ev traction motor market size. Electric motors high torque with high efficiency danfoss. The project was initiated in 2007, not only to create a traction motor with universal appeal to train builders, but also to enable effective engineering, supply and production processes, and to maintain abbs lead as an independent supplier of traction motors. They are liquidcooled and designed to work in harsh operating environments. Abb is a leading independent traction generator and motor supplier with iris certified production facilities. Pdf the preliminary choice of electric traction motors. It is used for local delivery of good in large towns with maximum daily run of 50 to 60 km. May 22, 2018 the electric traction system ppt briefly discusses the types, supply system, traction motors, braking system, advantages and disadvantages and recent trends.
This book will useful to most of the students who were studying electrical and electronic engineering. Classification of electric motors electrical knowhow. A traction motor is an electric motor used for propulsion of a vehicle, such as locomotives. Traction generators traction motors and generators abb. Brushless dc motor design for electric traction system md. The track electrification refers to the type of source supply system that is used while powering the electric locomotive systems.
It is therefore used in starter motors of cars and elevator motors p. An electric locomotive can be started at a moments notice whereas asteam locomotive requires two hours to heat up. They are also used in electric vehicles, such as electric milk. Efficiency is as important in drive systems for hybrid electric vehicle drive motors as it is for industrial motors in manufacturing facilities and commercial buildings. Electric traction systems seminar report a traction system causes the propulsion of vehicle in which tractive or driving force is obtained from various devices such as diesel engine drives. Multiple drive systems per vehicle can be supported due to the safety case and levels of torque integrity employed. Increasing investments in electric vehicle evs along with growing demand for energyefficient motors are some of the major growth drivers. Pdf operation analysis of ac traction motors in terms of. It offers several benefits over other systems, including quick start and stop, very efficient, pollutionfree, easy to handle and easy speed control. Jun 18, 20 moreover, the maintenance time is also much less. In electric traction drive, the drive is mainly by electric motors dc series motors which are fed from overhead distribution system generally.
Series commutator motor, therefore it requires regular maintenance. Nov 30, 2015 the electric traction system is the most efficient of all other traction system such as steam and internal combustion ic engine type systems. Electric traction motor the traction motor is suitable for a range of vehicle applications, from medium size passenger cars to light duty commercial vehicles. Hvh250, back shown with optional spun steel housing hvh250, front shown with optional spun steel housing. Weber president and chief executive officer of remy international, inc. More recently, cruise ships have employed dieselelectric propulsion systems to take advantage of the flexibility of diesel, as opposed to steam engines, and because the electric plant. Current developments in the field of traction motors.
Rpi repairs, rebuilds and remanufactures ge traction motors, including. By electric traction is meant locomotion in which the driving or tractive force is obtained from electric motors. Electric traction the system which use electrical power for traction system i. The report segments the electric traction motor market based on power rating into below 200 kw, 200400 kw, and above 400 kw. Traction motors in diesel locomotives ee publishers. More recently, cruise ships have employed diesel electric propulsion systems to take advantage of the flexibility of diesel, as opposed to steam engines, and because the electric plant can also be used for hotel loads. Pdf the preliminary choice of electric traction motors for a. 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. In deep and trustful partnerships with vehicle builders, refurbishers, and rail operators, we supply stateoftheart traction systems.
Traction motors from mahle make emobility reliable and affordable. Electric vehicle and electric motor traction motor refers to a type of electric motor. Electric propulsion system components traction drive system apeem not in the program battery onboard battery charger bidirectional converter electric motor inverter dcdc converter ancillary loads 120 v ac 240 v ac fast charger 2010 traction drive system cost target met with gm integrated traction drive system. The below 200 kw segment is expected to hold the largest size of the electric traction motor market, by power rating during the forecast period. General purpose enclosed motors can be used where they are exposed to dirt, moisture, and most outdoor conditions. Rpi expands traction motor cable offering rpi a long standing manufacturer of emd compatible cables expands into ge cables.
Ac traction motors, electrification systems, and railway signalling and control. 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. Modern electric locos have some fairly sophisticated electronic circuitry to control the motors depending on the speed, load, etc. The motors used in electric traction have a very high starting torque. It is only by sncf that synchronous motor has been put into traction motor application for the very advantage of constant speed and speed signal for control application can be derived from the input frequency.
The global electric traction motor market size is anticipated to grow at a cagr of 16. Jan 08, 2019 modern electric locos have some fairly sophisticated electronic circuitry to control the motors depending on the speed, load, etc. Pdf on mar 15, 2015, igor bolvashenkov and others published the preliminary choice of electric traction motors for a helicopter traction drive find, read and cite all the research you need on. The global electric vehicle traction motor market size was valued at usd 1. Mahle traction motors are suitable for all applications. Selection of suspension arrangement of traction motors. The system which use electrical power for traction system i. The traction motor is suitable for a range of vehicle applications, from medium size passenger cars to light duty commercial vehicles.
Electric traction motor market global forecast to 2025. A traction motor is an electric motor used for propulsion of a vehicle, such as locomotives, electric or hydrogen vehicles, elevators or electric multiple unit traction motors are used in electrically powered rail vehicles electric multiple units and other electric vehicles including electric milk floats, elevators, roller coasters, conveyors, and trolleybuses, as well as vehicles with. How to start and control the speed of traction motors. Zytek have developed a high power, compact, electric drive package comprising. The stator is a permanent magnet, so the motor is smaller in size. Pdf electric vehicle traction motors without rare earth magnets. Act of drawing or state of being drawn propulsion of vehicle is called tractions.
The speed and torque of the motor are controlled by varying the frequency, voltage and current applied to the stator coils. North american supply chain for traction motors and pe. Ac traction motors have replaced dc motors in many traction applications. Operation analysis of ac traction motors in terms of electromagnetic.
Electric traction motor is gaining popularity in several locomotive engine types and in. 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. Other advantages include the lack of exhaust fumes at point of use, less noise and lower maintenance requirements of the traction units. Pdf the preliminary choice of electric traction motors for. Advanced emobility drivelines english pdf leaflet optimized emobility motors for heavy working machine applications english pdf leaflet application note abb traction motors for electric multiple unit emu english pdf leaflet application note abb traction motors for light rail vehicle lrv english pdf leaflet.
Jun 27, 20 electric traction the system which use electrical power for traction system i. At present, high speed electric vehicles mostly work with threephase induction motors or threephase synchronous motors as traction motors. 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. It is used in electric trains, tramcars, trolley buses and diesel electric vehicles etc. This is why most traction and servo motors have been dc machines. Electric traction system 1 electric traction system presented by amit raj roll no. They are actually 3 phase ac motors, the big advantage of these motors is they do not have any brushes or in fact any form of internal electrical c. Pdf electric vehicle traction motors without rare earth. The electric traction system ppt briefly discusses the types, supply system, traction motors, braking system, advantages and disadvantages and recent trends. Danfoss editron electric drivetrains are based on synchronous reluctance assisted permanent magnet technology srpm. Electric traction has many advantages as compared to other nonelectrical systems of traction including steam traction. The motors used are induction or asynchronous motors designed to have characteristics suitable for traction. Moreover, the authors of the comparative evaluation used. High frequency stray electric currents are unavoidable in most current applications.
Ppt electric traction system powerpoint presentation. Included in multiple ul recognized insulation systems. A right reengineering of stators of three phase traction motors type 6fra multiple choice question on basic concept of science class x what is electricity, drift velocity and electric current. Abb is the expert for traction converters, motors, transformers, and complete traction chain solutions. This article presents an overview of some of the thermalmanagement considerations involved in selecting the most appropriate cooling approaches for electric traction motors and auxiliary function. Traction motors traction motors and generators abb.
The determination of the asynchronous traction motor. Electric cars use brushless dc motors, which in reality is not a very accurate description of them. Dripproof motors are intended to be used in a wellventilated place reasonably free of dirt and moisture. Abb is the expert for traction converters, motors, transformers.
Traction systems for locomotives and high speed applications. Or electric traction means a locomotion in which the driving force is obtained from electric motors. Rail products international products ge traction motors. Traction motor simple english wikipedia, the free encyclopedia. The solid rail application experience combined with extensive development resources allows abb to design stateoftheart generators, renowned for their reliability and energy efficiency, enabling customers to build modern ultralight locomotives for the demanding highspeed rail. Let the current be constant and equal to i amperes throughout, the line voltage be v volts and accelerating period be t seconds. Electric motors for vehicles, machines and marine applications.
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