Flexible Ac Transmission Systems M.Tech Model Question Paper : mgu.ac.in

Name of the University : Mahatma Gandhi University
Department : Electrical and Electronics Engineering
Degree : M.Tech
Subject Code/Name : MEEID 206.2/Flexible Ac Transmission Systems
Sem : II
Website : mgu.ac.in
Document Type : Model Question Paper

Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/mgu.ac.in/5283-MEEID%20206_2%20%20Flexible%20AC%20Transmission%20Systems.doc

Flexible Ac Transmission Systems :

M.TECH. Degree Examination :
Model Question Paper :
Second Semester :

Related : MGU MEEID203 Analysis of Power Electronic Systems–II M.Tech Model Question Paper : www.pdfquestion.in/5279.html

Branch: Electrical and Electronics Engineering
Specialization: Industrial Drives and Control
MEEID 206.2 Flexible Ac Transmission Systems : (Elective IV)
[Regular/Supplementary – 2011 Admission onwards ]
Time: Three Hours
Maximum: 100 Marks

Answer All Questions :
(Each full question carries 25 marks)
I (a) Discuss the problems relating to AC power transmission. Explain how they can be overcome using FACTS techniques.
(b) On the basis of two machine model, discuss how the steady state power transfer can be enhanced using power electronic control.
OR

2(a) Discuss the principle of phase angle control to improve the power flow conditions in a transmission line.

(b) By means of equal area criterion applied to a two machine model illustrate how the transient stability margin is increased with a phase shifter and compare the same with an ideal mid point compensator.

3(a) Discuss the general features of shunt compensators with the help of a simplified system model.
(b) Explain how shunt compensation can be achieved with ideal mid point reactive compensators. What is the effect of multi point segmentation on line performance?
OR

4(a) Give a detailed account on the working of a STATCOM. Discuss the advantages of using multi level converters in a STATCOM.
(b) Discuss on the measures taken to reduce the harmonic distortion in the STATCOM outputs.

5(a) Enumerate the advantages of series compensation.
(b) Explain with the help of a suitable model how transmittable power can be increased with series compensation.
OR

6(a) Describe the principle of operation of a TCSC, clearly indicating the different modes of operation.
(b)Discuss on the damping characteristics of TCSC illustrating its role in enhancing damping of electro mechanical oscillations in power systems.

7(a) Deduce that a UPFC can perform all the functions of the traditional compensating devices used in a power system.
(b) Compare UPFC performance to that of the controlled series compensators and phase shifters.
OR

8(a) Illustrate the overall UPFC control structure.
(b) With the help of a block diagram explain the basic UPFC control scheme. Discuss on the functional control modes of UPFC.

M.Tech. Degree Examination :
Model Question Paper :
Second Semester
Branch : Electrical and Electronics Engineering
Specialization : Industrial Drives and Control
MEEID 204 Special Electrical Machines And Drives [Regular/Supplementary – 2011 Admission onwards ]
Time : Three Hours
Maximum : 100 Marks

Answer All Questions :
(Each full question carries 25 marks)
I (a) Describe the constructional features and principle of operation of stepping motor? (15)
(b) With circuit diagram explain the closed loop control of stepper motor. (10)
OR
2(a) Explain in detail microprocessor based control of stepper motor. (10)
(b) Obtain the transfer function of a variable reluctance stepping motor. (15)

3(a) Explain the principle of operation of switched reluctance motor. Derive its torque equation. (15)
(b) Explain the general torque- speed characteristics of SRM. (10)
OR
4(a) Explain construction and operating principle of radial gap synchronous reluctance motor. (10)
(b) Explain the operation principle of synchronous reluctance motor and discuss about its characteristics. (15)

5(a) Describe the construction and working of multi phase brushless dc motor. (15)
(b) Explain any one method to realize sensorless control of speed in a BLDC. (10)
OR
6(a) Draw and explain torque-speed characteristics of permanent magnet Brushless DC motor. (10)
(b) Draw and explain a suitable power control structure for a BLDC. (15)

7(a) Discuss vector control scheme for permanent magnet synchronous motor (15)
(b)Sketch and explain torque-speed characteristics of permanent magnet synchronous motor. (10)
OR
8(a) Explain how a smooth torque is ensured in a PMSM. Draw the phasor diagram corresponding to leading power factor operation and mention effects of de-magnetizing mmf. (15)
(b)Discuss the different current control schemes in PMSM. (10)