M.E. POWER SYSTEM ENGINEERING UNIT-IV (VOLTAGE SOURCE CONVERTER BASED FACTS CONTROLLERS) 2 MARKS QUESTIONS:

M.E. POWER SYSTEM ENGINEERING

UNIT-IV (VOLTAGE SOURCE CONVERTER BASED FACTS CONTROLLERS)

2 MARKS QUESTIONS:

1. The operation of STATCOM is based on the operation of syn. m/c as rotating synchronous Condenser explains?
2. Compare the performance of SVC and STATCOM.
3. Explain the working principle STATCOM?
4. Draw the V – I characteristics of STATCOM?
5. Draw control schemer of STATCOM & explain?
6. What are the different types of losses in STATCOM?
7. What is the function of STATCOM?
8. List any two power system performance that can be improved by STATCOM.
9. What is meant by interphase power controllers?
10. How the reactive power compensation is done using STATCOM?
11. Why there is need of hybrid VAR generators?
12. What are the different types of hybrid VAR generators?
13. Compare STATCOM with SVS?
14. Define SSSC.
15. Explain with a neat sketch and waveforms the SSSC type of series controller.
16. Give the functional control scheme for a SSSC.
17. What is IPFC?
18. What are the features of IPFC?
19. What are the advantages of use of IPFC?
20. What is the significance of DC link in the UPFC modelling?
21. What is the role in DC link in UPFC?
22. State salient features of UPFC.
23. What are the drawbacks of multiphase converters?
24. How to make line compensation in FACTs?
25. What are the constrains to operate UPFC?

Big Questions:

1. What is UPFC? Draw its circuit diagram and explain the working principle as well as control principle in detail.
2. Obtain the steady state model for STATCOM from basic equations.
3. Derive an expression for real and reactive power change made by SSSC in a power system network.
4. Explain the concept of damping the rotor angle oscillations by STATCOM and SSSC.
5. With aid of block diagram, explain the characteristics of UPFC.
6. Explain the power exchange between the STATCOM and the ac system using vector diagrm?
7. Derive steady state model and STATCOM.
8. Explain the principle of operation and applications of UPFC.
9. Explain the operation of STATCOM with an aid block diagram?
10. Describe the V-I characteristics of STATCOM?
11. Explain the modelling procedure of UPFC for power flow studies?
12. What are the various recent advancements in the UPFC design?