DC Power Transmission Systems

By Prof. Krishna S | IIT Madras

Learners enrolled: 3633

This course gives an introduction to the DC power transmission system using the conventional line commutated converters. The topics covered include a detailed analysis of the 6 pulse line commutated converter (LCC), 12 pulse LCC, capacitor commutated converter, DC link control, and design of single tuned filter.

INTENDED AUDIENCE : Interested students

PREREQUISITES : Knowledge of electric circuit analysis and power electronic devices

INDUSTRY SUPPORT : Nil

Summary

Course Status :	Completed
Course Type :	Elective
Duration :	12 weeks
Category :	Electrical, Electronics and Communications Engineering
Credit Points :	3
Level :	Undergraduate/Postgraduate
Start Date :	27 Jan 2020
End Date :	17 Apr 2020
Enrollment Ends :	03 Feb 2020
Exam Date :	25 Apr 2020 IST

Note: This exam date is subjected to change based on seat availability. You can check final exam date on your hall ticket.

Page Visits

Course layout

Week 1: Introduction, choice of converter configuration

Week 2: Converter configuration for pulse number equal to 6, analysis of 6 pulse LCC neglecting overlap

Week 3: Fourier series, analysis of 6 pulse LCC neglecting overlap

Week 4: 2 and 3 valve conduction mode of 6 pulse LCC

Week 5: Extinction angle, 3 and 4 valve conduction mode and 3 valve conduction mode of 6 pulse LCC

Week 6: Commutation margin angle, normalization, characteristics of 6 pulse LCC, steady state analysis of a general LCC

Week 7: 6 pulse LCC with other circuits on the AC and DC sides

Week 8: Capacitor commutated converter, 12 pulse LCC

Week 9: Mode of operation of 12 pulse LCC, purposes of transformer, applications of DC transmission, types of DC link, DC link control

Week 10: Converter control characteristics, MTDC systems, non-characteristic harmonics

Week 11: Design of single tuned filter

Week 12: Double tuned and damped filters, reactive power requirement, comparison of AC and DC transmission

Books and references

K.R. Padiyar, HVDC Power Transmission Systems, 2nd Edition, New Age International, 2010.

Instructor bio

Prof. Krishna S

IIT Madras

Krishna S received the B.E. degree in Electrical Engineering from Bangalore University in 1995, and the M.E. and Ph.D. degrees in Electrical Engineering from Indian Institute of Science in 1999 and 2003 respectively. He was with Kirloskar Electric Company, Bangalore, from 1995 to 1997. He was an Assistant Professor at M.S. Ramaiah Institute of Technology from 2003 to 2008. In 2008, he joined Indian Institute of Technology Madras where he is currently an Associate Professor in the Department of Electrical Engineering. He has authored the book “An Introduction to Modelling of Power System Components” published by Springer in 2014. His research area is power system studies.

Course certificate

The course is free to enroll and learn from. But if you want a certificate, you have to register and write the proctored exam conducted by us in person at any of the designated exam centres.
• The exam is optional for a fee of Rs 1000/- (Rupees one thousand only).
• Date and Time of Exams: 25th April 2020, Morning session 9am to 12 noon; Afternoon Session 2pm to 5pm.
• Registration url: Announcements will be made when the registration form is open for registrations.
• The online registration form has to be filled and the certification exam fee needs to be paid. More details will be made available when the exam registration form is published. If there are any changes, it will be mentioned then.
• Please check the form for more details on the cities where the exams will be held, the conditions you agree to when you fill the form etc.

CRITERIA TO GET A CERTIFICATE:
• Average assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.
25% of assignment score will be calculated as=(Average of best 5 out of first 8 assignments)*0.8 + (Average of best 3 out of last 4 assignments)*0.2
• Exam score = 75% of the proctored certification exam score out of 100
• Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75.
• If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.
• Certificate will have your name, photograph and the score in the final exam with the breakup.It will have the logos of NPTEL and IIT Madras. It will be e-verifiable at nptel.ac.in/noc.
• Only the e-certificate will be made available. Hard copies will not be dispatched.

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