Allied motion offers several electronic drive products to power our motors. Modern electric traction drive systems make use of power electronic devices which directly affect. North american power electronics and motors supply chain analysis. The capacitors reduce the voltage ripple especially on single phase supplies and supply energy for short mains breaks. This contains four boards, basic software and interconnect. Traction drives free download as powerpoint presentation. The multiconverter topology, scaled in power of three, with a few quantity of inverters, can generate a very. It is an applicationoriented book for the design and development of traction systems accompanied by a description of the core. Electric traction the system which use electrical power for traction system i. The most vital factor against electric traction is the initial high cost of laying out overhead electric supply system. The speed of the load may be different from that of the motor. Com mersen fuses and overcurrent protection devices for power electronics and batteryrelated applications 3 semiconductor protection fuses that meet every major standard s tandards may change from country to country, but the need for safe, reliable electrical protection for semiconductor applications is the same the world over.
Traction drive power electronics and motors supply chain a copresentation by. Presently, there are four types of track electrification systems are available based on the availability of supply. A valuable reference for application engineers in traction industry responsible for design and development of products as well as traction industry researchers, developers and graduate students on power electronics and motor drives needing a reference to the application examples. Optimising power management strategies for railway traction. Pdf on jun 1, 20, mohan krishna and others published types of power quality. The most important challenge of traction distribution is to supply electric power to running locomotive. The sxd is a compact, modular unit able to precisely control motor torque or velocity. It consists of nine chapters in all, covering the various topics systematically and exhaustively. The electric traction system 25kv, 50hz and the traction vehicle with threephase induction motors were modeled including acdc recti. The way of giving the power supply to locomotive unit is generally referred as traction electrification system.
The track electrification refers to the type of source supply system that is used while powering the electric locomotive systems. Main inverter electric traction stmicroelectronics. Dec 20, 2016 this video provides a short introduction to electric drive technology for traction applications. Rating and heating of electric drives, power loss, heating and cooling of motors, classes and. Power failure for few minutes can cause traffic dislocation for hours. Traction drives power inverter electric power free 30. Modeling and design of drivetrain power electronics to minimize cafe loss design of power electronics system. Traction power electrification system investigation wmata. Power electronic converters for advanced electric power systems dushan boroyevich the bradley department of electrical and computer engineering virginia tech, blacksburg, va 240610111, usa tel 540. Pdf integrated traction and auxiliary power supply converters for. 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. Electric traction, multilevel converter, power electronics traction transformer, power supply in electric traction drives, unconventional current collection from a contact line i.
New generation traction power supply system and its key. Checking the terminal voltage for control and motor circuit. Power supply 25 kv, ac, 50 hz single phase power supply for electric traction is derived from the grid of state electricity boards through traction substations located along the route of the electrified sections at distance of 35 to 50 km apart. A key advantage of the system is that there are no restrictions on where it has to be deployed so it can be installed virtually anywhere. A 440 v, 60 hz induction motor is to be used on a 50 hz supply. Featured here is the costeffective singleaxis sxd series of dcpowered fullfeatured digital servo drives. It is a summary of chapter 1 of the book power electronics and electric drives for traction.
Power electronics advancement in electric traction drivesan. Act of drawing or being drawn is known as traction. The electric traction system is supplied from electric power sys tem through. From traction power to energy management for more information. Supply traction power supply equipment by our partner ac and dc switchgear traction transformer and rectifier short circuiting device stray current monitoring system dc cable and track bonding cable installation and onsite supervision testing and commissioning.
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. Trolley buses or tramways supplied with dc supply i. Driving the future of hevev with highvoltage solutions. Power electronic converters for advanced electric power systems. Electric traction mcqs answers pdf electrical engineering. Power quality analysis in electric traction system with threephase.
Unless the traffic to be handled is heavy, electric traction becomes uneconomical. A free powerpoint ppt presentation displayed as a flash slide show on id. Traction drive system for electric vehicles, using multilevel. Dynamics of electrical drives when the motor rotates, the load of the system may rotate or may go through a translational motion. Ac drive electric locomotives, including electric multiple units. With the development of high power semiconductor devices and associated control techniques, acdrives have become the most popular choice in traction applications globally 1924.
The system which use electrical power for traction system i. Dynamics of electrical drives formula and explanation. Power electronics and electric drives for traction. This video provides a general perspective of how electric drives technology is a key technology that facilitates to produce devices that we can find in our daily live such as. A section on photometric measurement is added along with a study of halogen lamps and energy saving fluorescent lamps. Rajput this book on utilisation of electrical power including electrical drives and electric traction has been written for students preparing for b. One of the major application of an electric drive is to transport men and materials from one place to another. Pdf electric drives of traction rolling stocks with ac motors. One of the major developments on electric traction systems for industrial frequency singlephase ac electrified railway is to replace the electrical. As the speed changes, the load torque remains constant and the horsepower changes linearly with speed. If electric supply is used for driving a locomotive, the system is known as electric traction.
Ppt electric traction system powerpoint presentation. Pdf power electronics and drives used in automotive. Drives 148 current control 150 torque control 152 speed control 152 overall operating region 154 armature voltage feedback and ir compensation 155 drives without current control 155 chopperfed d. This video provides a short introduction to electric drive technology for traction applications. Electric traction mcqs answers pdf electrical engineering multiple choice questions answers. This automotive ev power inverter control reference platform targets iso 26262 asil d applications, such as electric vehicle traction motors and dc to dc converters. From traction power to energy management for more information visitschneider electric. Chapter one first pantograph second main circuit breaker pantograph effect electric traction power from the catenary to. Driving the future of hevev with highvoltage solutions 3 july 2017 onboard charging an obc charges the batteries in an hevev by connecting the vehicle to the grid, which is the electric power source. Some softwares can import files from track design programs such as railml. Traction power electrification system investigation report washington metropolitan area transit authority. In the translational motion, the position of the body changes from point to point in space. The force developed by the traction motor is transmitted by the wheelrail contact. 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.
Please find the full notes on electrical machines and drives. Power electronics and electric drives for traction applications offers a practical approach to understanding power electronics applications in transportation systems ranging from railways to electric vehicles and ships. Energy storage for traction power supply systems 30 circuit configuration fig. It is a summary of chapter 1 of the book power electronics and electric drives for. Ppt electric traction system powerpoint presentation free. The chapter on electric drives and control covers the recent trends in electric traction using gto thyristor technology. Electric drives of traction rolling stocks with ac motors article pdf available in transport 2 september 2006 with 114 reads how we measure reads.
Power electronic converters for advanced electric power. North american power electronics and motors supply chain. Which of the following is an advantage of electric traction over other methods of traction. Power supply installation in electric traction irieen.
This key component has a direct impact on road performance, driving range and reliability of the vehicle also as a consequence of their weight and size. Power supply 25 kv, ac, 50 hz single phase power supply for electric traction is derived from the grid of state electricity boards through traction substations located along the route of the electrified sections at. Objective type questions were incorporated for self assessment. Electric drive dimensioning and tuning 8 preface preface each point of our life is the point of choice yuly daniel there is always an increasing demand for most modular, flexible, and integrated solutions. General presently we are using power electronics in railways as a. Pdf types of power quality disturbances on ac electric traction. The grid is ac and the battery is dc, so the charger is an acdc system. Nov 15, 2016 this video provides a general perspective of how electric drives technology is a key technology that facilitates to produce devices that we can find in our daily live such as. The book covers the following topics three phase circuits and power magnetics transformers concept of electrical machiners dc motors three phase windings induction machines. There may be two types of traction classifications on the basis of power supply. With pwm techniques, it is not possible to implement a sinusoidal voltage power supply. Jun 27, 20 electric traction the system which use electrical power for traction system i. Advanced power electronics and electric machines author.
The following documents have been incorporated as appendices to. The drive which uses the electric power for moving forward, such type of drive is called an electric traction drive. Offer area application description and example ranges. Nxp offers the choice of three tools to speed development of your inverter. Singleconverter reversing drives 144 double spconverter reversing drives 146 power factor and supply effects 146 control arrangements for d. The author documents a range of options which can be used, selectively, to optimise. The rcc includes the main control room, equipment room, uninterrupted power supply ups room, remote control laboratory and battery room and is the nerve centre of the traction power control. Internal power supply distribution system iii energy efficient systems 4. During the test drives, the values of total harmonic distortion, unbalance, flicker and power factor were obtained. Many systems have been evolved over the period based on power handling technologies available at that time and now 25 kv traction power supply is. This in turn is causing designers to find ways of enhancing their product offerings in response to such demand. Or electric traction means a locomotion in which the driving force is obtained from electric motors.
A traction inverter converts energy from the vehicles battery in order to drive the motors in the drivetrain. The analogue device installed in the motor has to be specified, in order to insert the correct lookup table in the software. Nenad tezak at koncar electrical engineering institute. Federal transit administration december 9, 2016 8 new insulators that can be removed for cleaning and then reinstalled.
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