Download PTU (I.K.Gujral Punjab Technical University (IKGPTU)) B-Tech (Bachelor of Technology) (EEE)- Electrical And Electronics Engineering 2020 December 6th Sem 71153 Flexible Ac Transmission Systems Previous Question Paper
Total No. of Pages : 02
Total No. of Questions : 18
B.Tech. (EE) / (Electrical & Electronics) (2012 Onwards E-I) (Sem.?6)
FLEXIBLE AC TRANSMISSION SYSTEMS
Subject Code : BTEE-605B
M.Code : 71153
Time : 3 Hrs. Max. Marks : 60
INST RUCT IONS T O CANDIDAT ES :
1 .
SECT ION-A is COMPULSORY cons is ting of TEN questions carrying TWO marks
each.
2 .
SECT ION-B c ontains F IVE questions c arrying FIVE marks eac h and s tud ents
have to atte mpt any FOUR q ues tions.
3 .
SECT ION-C contains THREE questions carrying T EN marks e ach and s tudents
have to atte mpt any T WO questio ns.
SECTION-A
Answer the following in short :
1.
What are the roles of the FACTS devices?
2.
How FACTS controllers are classified?
3.
What is the limitation of VSC model for modeling the FACTS devices?
4.
What is Static Phase Shifter?
5.
Out of series and shunt compensation methods of same MVA rating, which one is more
effective in stability enhancement in a power system network? Justify your answer.
6.
Why VSCs is preferred over CSCs in FACTS devices?
7.
What is Reactive Power Compensation?
8.
What are the different kinds of filters available? What is the role of filters?
9.
What is Congestion Management?
10. Explain difference between series and shunt compensation?
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SECTION-B
11. Draw the block diagram of STATCOM, and explain its working.
12. Explain the basis of Shunt Compensation. Discuss the principle of operation, working and
characteristics of a shunt SVC scheme. What are the various SVC schemes?
13. What is a UPFC? Explain its working and applications with the help of a schematic
diagram. Why is it considered the most powerful FACTS device? Derive the relevant
results to support your answer.
14. Explain with the help of single-line and phasor diagrams for the power flow and dynamic
stability considerations of a transmission line.
15. What are the sources of voltage and current harmonics in a power system network? Which
type of FACTS and/or custom power device would you use to mitigate current and/or
voltage harmonics?
SECTION-C
16. Explain the term Series Compensation. Draw the schematic diagram of TCSC. Discuss its
principle of operation. Explain the working, characteristics and applications of TCSC in
detail.
17. What are the various FACTS devices used in a power system network? What are the
limitations of conventional compensating devices? How is the role of FACTS devices
different in transmission system as compared to that in distribution system?
18. What is the role of compensation in power system? Explain the importance of load
compensation and line compensation.
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
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This post was last modified on 13 February 2021