Power supply for electric traction drives pdf free

A servo drive is used to control the torque as well as speed, and also components of the positioning. General presently we are using power electronics in railways as a. Singlemotor electric drives are used in power tools, simple metalworking and woodworking machine tools, and household appliances. It is an applicationoriented book for the design and development of traction systems accompanied by a description of the core technology. A short overview of railway electrical supply networks. Also we supply advanced high power controller designed for traction applications for. Pdf electric drives of traction rolling stocks with ac. C system single phase three phase composite system single phase ac to dc single phase to three phase kando system. In the latter part of the 20th century, vehicles with electrical transmission systems powered from internal. Unless the traffic to be handled is heavy, electric traction becomes uneconomical. The main advantage of electric traction is a higher power toweight ratio than forms of traction such as diesel or steam that generate power on board. Electric drives and traction interview questions 1.

Electric traction system 1 electric traction system presented by amit raj roll no. Alternative motor technologies for traction drives of. Nenad tezak at koncar electrical engineering institute. Power electronics and electric drives for traction.

Up to 8 a peak output drive current enables the product to drive devices with nominal currents of up to 600 800 a typical. Types of power quality disturbances on ac electric traction drives. Pdf on jun 1, 20, mohan krishna and others published types of power quality. An electric locomotive is a locomotive powered by electricity from overhead lines, a third rail or. Ppt electric traction system powerpoint presentation free. Reinforced galvanic isolation is provided by power integrations revolutionary solid insulator fluxlink technology. 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. Utilization of electrical power including electric drives and electric traction by n. Electrical engineering objective questions mcq with answer free pdf download.

Utilization of electrical energy pdf free download uee notes uee pdf notes utilization of electrical power including electric drives and electric traction by n. The progress of electrical railway power supply systems erpsss have. Rotary converters were the first to appear and they consist of a motor and a. Electric traction alternating current electric power. 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. Basic notions for the study of electric traction systems 17. A railway electrification system supplies electric power to railway trains and trams without an onboard prime mover or local fuel supply. Presently, there are four types of track electrification systems are available based on the availability of supply. A system which causes the propulsion of vehicle in which tractive or driving force is obtained from various devices such as diesel engine drives, steam engine drives, electric motors, etc. Download free sample and get upto 51% off on mrprental. Rating and heating of electric drives, power loss, heating and cooling of motors, classes and.

Optimising power management strategies for railway traction. The following are the advantages of electrical drive. For traction motor control of electric locomotives and electric motive. Electric traction railways free download as powerpoint presentation. Electric traction, multilevel converter, power electronics traction transformer, power supply in electric traction drives, unconventional current collection from a contact line i. The focal point of the book will be the disposition of electric traction units powered by threephase induction motors. He has made special studies on power quality, converter controls and power supply of electric systems for transportation. May 22, 2018 a traction system causes the propulsion of vehicle in which tractive or driving force is obtained from various devices such as diesel engine drives, steam engine drives, electric motors, etc. Pdf electric drives of traction rolling stocks with ac motors. For 25 kv single phase system power supply frequency is a 60 hz b 50 hz c 25 hz d. Electrical railway transportation systems ieee press series. 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.

A survey article pdf available june 20 with 1,725 reads how we measure reads. Dc traction units use direct current drawn from either a conductor rail oran overhead line. Electric traction and startergenerators, compatible with dc, 3phase acinduction and dcbrushless motors, wide voltage supply range 100450v and continuous power output of up to 160kw fig. Power electronic converters are used everywhere in normal daily routines at home, commercial workplaces or in an industrial environment. The electric drive can be built with source, power modulator, motor, load, sensing unit, control unit, an input command. Design of power supply system in dc electrified transit railways diva. Modern electric traction drive systems make use of power electronic devices which. Please find the full notes on electrical machines and drives. The book covers the following topics three phase circuits and power magnetics transformers concept of electrical machiners dc motors three phase windings induction machines. Scribd is the worlds largest social reading and publishing site.

Utilization of electrical energy pdf notes uee pdf notes. Recent trends in power electronics applications as solutions in. The system which uses electrical power for traction system i. There are various systems of traction prevailing in our country such as steam engine drive, electric drive. Electric traction railways electric motor components. Jun 18, 20 dc traction units use direct current drawn from either a conductor rail oran overhead line. Types of power quality disturbances on ac electric traction. Due to the high power handling with higher efficiencies, these converters become an integral part of industrial electric drives, high electric power supplies, electric traction systems and automobile control equipments. Electrical railway transportation systems ieee press.

On locomotives equipped with regenerative brakes, descending gradients require very little use of air brakes. Discuss in detail about series parallel control of electric traction motor with example. A 440 v, 60 hz induction motor is to be used on a 50 hz supply. Traction means drawing or pulling something over a surface. Introduction classifications of traction drives requirements of a traction system merits and demerits of electric traction electric locomotives and its component dc traction motor duty cycle of traction drives recent trends in electric traction control references 3. The sic1181kq and sic1182kq are single channel gate drivers for sic mosfets. We shall discuss the stationary and dynamical behaviour of the squirrelcage induction motors and the principle and construction features of pulsecontrolled inverters, as well as scalar and fieldoriented control systems and fourquadrant power converters, feeding the dc. The electrification of railway in indian is started in 1925 as it is free from pollution, fast response. Mar 19, 2015 traction means drawing or pulling something over a surface. The drive which uses the electric power for moving forward, such type of drive is called an electric traction drive. Power failure for few minutes can cause traffic dislocation for hours. The electric traction system can be broadly divided into two groups.

In this post provide you latest and updated 2018 electrical mcq objective questions with answer which are help for preparation all electrical engineering exams like gate, ies, jto, psus, rrb jeaen, rrb loco pilot and technicians, ssc je, dmrc, lmrc, isro and other state level engineering exams. The symposium provided a forum for discussing the effects of converter control on the design of electrical machines. Act of drawing or state of being drawn propulsion of vehicle is called tractions. Electric drive a set of devices to convert electric energy into mechanical energy and to regulate the converted energy flux according to a specific law.

Archived from the original pdf on november 25, 2005. Alternative motor technologies for traction drives of hybrid. About the author morris brenna, phd, is an associate professor in the electric power system sector at the department of energy of politecnico di milano. Rajput this book on utilisation of electrical power including electrical drives and electric traction has been written for students preparing for b. It is a summary of chapter 1 of the book power electronics and electric drives for.

Morris brenna, phd, is an associate professor in the electric power system sector at the department of energy of politecnico di milano. Electric traction free download as powerpoint presentation. The selfpowered systems include diesel electric drives and battery electric drives that can generate their own power to pull the train. Indian rail uses only two phases from threephase electric power supply to fed locomotive. There may be two types of traction classifications on the basis of power supply. The paper considers the variation of circuit design of the electric drives in traction rolling stocks when traditional dc electric machines are replaced with ac electric machines. This video provides a short introduction to electric drive technology for traction applications.

Nov 30, 2015 trolley buses or tramways supplied with dc supply i. Suryanarayana, new age international p limited, publishers, 1996. The force developed by the traction motor is transmitted by the wheelrail contact. Utilization of electrical energy pdf free download uee notes uee pdf notes. Federica foiadelli, phd, is an associate professor in the electric power system sector at the department of energy of politecnico di milano. Electricity is typically generated in large and relatively efficient generating. Pdf types of power quality disturbances on ac electric traction. Feeding the synchronous traction motor with a load commutated inverter. Control in power electronics and electrical drives 1st. Electrical engineering objective questions mcq with answer. 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. Railway traction system research india publications. It is a summary of chapter 1 of the book power electronics and electric drives for traction.

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. Trolley buses or tramways supplied with dc supply i. Chapters on electrical drives and electric traction. Electric and magnetic fields under contact lines and in proximity of the traction power installations. The chapter on electric drives and control covers the recent trends in electric traction using gto thyristor technology. During normal operation, taps builds and maintains reserve energy. A traction motor is an electric motor used for propulsion of a vehicle, such as locomotives. 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. 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.

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. Electricity quickly became the power supply of choice for subways, abetted by the. It consists of nine chapters in all, covering the various topics systematically and exhaustively. Basics of electric traction drives guided by prepared by. The control equipment is provided for manual and automatic operation. Traction auxiliary power supply taps safe, intelligent elevator delivery when commercial power is lost. Electricity enables faster acceleration and higher tractive effort on steep gradients. Ppt electric traction system powerpoint presentation. It is an applicationoriented book for the design and development of traction systems accompanied by a description of the core. Modern electric traction get best books pdf, study. The way of giving the power supply to locomotive unit is generally referred as traction electrification system.

Basics of electrical traction drives linkedin slideshare. Rating and heating of electric drives, power loss, heating and cooling of. Power electronics advancement in electric traction drives. This book will useful to most of the students who were studying electrical and electronic engineering. Dec 15, 2015 power electronic converters are used everywhere in normal daily routines at home, commercial workplaces or in an industrial environment. The types of electrical drives are two such as a standard inverter as well as a servo drive. Pdf integrated traction and auxiliary power supply converters for. Which of the following is an advantage of electric traction over other methods of traction. Objective type questions were incorporated for self assessment. One of the major application of an electric drive is to transport men and materials from one place to another. The most popular line voltages for overhead wire supply systems 1500vdc and 3000v dc. The electric drive has very large range of torque, speed and power.

The block diagram of an electric drive is shown below, and the load in the diagram signifies different kinds of equipment which can be built with an electric motor such as washing machine, pumps, fans, etc. Their working is independent of the environmental condition. Electric drive article about electric drive by the free. The electric drives operate on all the quadrants of speed torque plane. In a traction power supply system, rails are used as a. Group electric drives are almost never used in modern industry.

Electric drives may be classified according to design characteristics into three types. Influences of eddy currents on underground metallic pipes and cables. Mces traction auxiliary power supply taps for vvvf controllers provides backup power when commercial power is lost, safely delivering the elevator car to a landing and maintaining door power so passengers can exit. The most vital factor against electric traction is the initial high cost of laying out overhead electric supply system. The main advantage of electric traction is a higher powertoweight ratio than forms of traction such as diesel or steam that generate power on board.

Electric railways use either electric locomotives hauling passengers or freight in separate cars, electric multiple units passenger cars with their own motors or both. What is an electric locomotive systems and their types in. Electric traction systems are various electrical systems that are used to drive railways. Pdf types of power quality disturbances on ac electric. A traction system causes the propulsion of vehicle in which tractive or driving force is obtained from various devices such as diesel engine drives, steam engine drives, electric motors, etc. Electrical railway transportation systems is an ideal text for graduate students studying the subject as well as for industry professionals working in the field. Checking the terminal voltage for control and motor circuit. Dec 20, 2016 this video provides a short introduction to electric drive technology for traction applications.

Electric traction motive power and energy supply pmc. Calculate candle power capacitor capacity circuit coil connected constant copper copper loss d. 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. Battery electric drive and diesel electric drive etc.