Electric Drives for Electric Traction

Lecturer:

Tutor:

Supervisor:

Department of Electric Drives and Traction

Synopsis:

Traction resistance. Adhesion. Power for Traction. Traction motors used on locomotives and tramcars. Tramcar with resistance and chopper control. Converters for tramcars and trolley buses. Underground lines. Prague Metro. Electric locomotives. Converters for Locomotives. DC, AC and Double System Locomotives. Locomotives with Induction motors. Examples of Trolley Locomotives Diesel Electric Locomotives.

Requirements:

Active participation on solution of laboratory tasks, correct book-keeping of measurement documentation and results processing. Presentation of measurement reports.

Syllabus of lectures:

1. History of electrical traction. Classification of electric drives

2. Traction resistance. Adhesion

3. Traction motors used in electric traction. Tramcars

4. Tramcars with resistance and chopper control. Converters for tramcars

5. Tramcars T3, KT8, TV6 and tramcars with induction motors

6. Trolley buses, their usage and control

7. Underground lines. Prague Metro

8. DC locomotives. Resistance and chopper control. Converters

9. Locomotives Škoda E 499, 65 E, and 71 E. with pulse control

10. Locomotives supplied by the AC voltage with frequency 50 and 16+ 2/3 Hz

11. Locomotives with tap transformers, rectifiers and double system locomotives

12. Locomotives Škoda 73 E, Sub-urban units 471 with induction motors

13. Rangier locomotive Škoda E90 respectively Siemens S 252 with induction motors

14. Diesel electric locomotives

Syllabus of tutorials:

1. Introduction. Safety in lab. Organisation of excursions. Measurement preparation

2. Physical and computer simulation of tramcar control

3. Excursion to ČKD Tatra Zličín, manufacturer of tramcars. Assembly

4. Excursion to ČKD Tatra Zličín, manufacturer of tramcars. Assembly

5. Physical and computer simulation. Calculation of haul forces, power and energy

6. Excursion to ČKD Trakce. Electric equipment for tramcars. Power part

7. Excursion to ČKD Trakce. Electric equipment for tramcars. Control part

8. Measurement of regeneration by the thyristor tramcar

9. Excursion to Prague Metro home depot

10. Help and checking of haul forces, power and energy determination

11. Excursion to Prague locomotive home depot

12. Measurement on a model of locomotive drive with induction motors

13. Excursion to ČKD Locomotive manufacturer

14. Measurement reparations. Credit

Study Objective:

Study materials:

1.Volker, D.: The S252 Dual System AC Electric Locomotive with Three Phase Drive for Spanish Railways, Elektrische Bahnen, 1990, S. 224

2.Next literature will be specified by the lecturer

Note:

Further information:

No time-table has been prepared for this course

The course is a part of the following study plans:

• Heavy-current Engineering - Electroenergetics- structured studies (compulsory elective course)
• Heavy-current Engineering - Technological Systems- structured studies (compulsory elective course)
• Heavy-current Engineering - Electric Drives- structured studies (compulsory elective course)
• Heavy-current Engineering - Electrical Engineering Applications- structured studies (compulsory elective course)