Hall Ticket No Question Paper Code: BPE006
INSTITUTE OF AERONAUTICAL ENGINEERING
(Autonomous)
M.Tech II Semester End Examinations (Regular) July, 2017
Regulation: IARE-R16
FLEXIBLE AC TRANSMISSION SYSTEMS
(Power Electronics and Electrical Drives)
Time: 3 Hours Max Marks: 70
Answer ONE Question from each Unit
All Questions Carry Equal Marks
All parts of the question must be answered in one place only
UNIT I
1. What are the benefits of FACTS controllers.
Explain the power flow in parallel paths and meshed networks. Also explain the inter connections
in power flows?
2. What are the different FACTS controllers used and briefly explain them?
What is the importance of controllable parameters in FACTS devices.
UNIT II
3. Explain the principle of operation of single phase full wave bridge converter in detail. Draw the
necessary waveforms of various AC and DC quantities?
4. Explain the transformer connections for 12 and 24 pulse converter.
Compare current source converter with voltage source converter.
UNIT III
5. Why transmission line require reactive power compensation? Justify.
Explain the midpoint compensation technique for stability improvement.
6. Explain the TCR and TSC type of VAR generators in detail? Derive the necessary equations.[14M]
UNIT IV
7. Explain the operation and characteristics of SVC.
Explain the transient stability enhancement using SVC.
8. Explain the comparision of SVC and STATCOM. Discuss the operational and performance characteristics
of SVC and STATCOM.
UNIT V
9. Why series compensation is used? Justify.
How series compensation improves transient stability?
10. Explain the various control schemes of GSC, TSSC and TCSC.