Q.1
14 Marks(a)
State assumptions used to apply equal area criterion.
(b)
Distinguish between steady state, transient state and dynamic stability.
(c)
Explain different operating states of a typical power system network with help of neat diagram.
Gujarat Technological UniversitySummer 2026 examination
GTU 3170915 Power System Dynamics and Control Summer 2026 Question Paper & PDF
B.E. · Electrical Engineering · Semester 7 · Subject code 3170915
- Total
- 70 marks
- To pass
- 23 marks (33%)
- Duration
- 2.5 Hours 2:30 PM – 5:00 PM
- Questions
- 5 with internal choice
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Q.2
14 Marks(a)
Define power system stabilizer.
(b)
Explain in the types of load models used in power system analysis.
(c)
Draw general functional block diagram of an excitation control system and explain the function of each block.
OR
(c)
Describe briefly the per unit representation of Lad -reciprocal per unit system
Q.3
14 Marks(a)
What are the assumptions made in developing the mathematical model of a synchronous machine?
(b)
Write down the voltage equation for rotor in dq0 coordinates.
(c)
Explain the two axis model of the synchronous machine with amortisseur windings neglected.
OR
(a)
Explain the effect of neglecting transformer emf in stator voltage equations.
(b)
Write down the voltage equation for stator in dq0 coordinates.
(c)
Explain power invariant form of park’s transformation.
Q.4
14 Marks(a)
What are the requirements in transient droops?
(b)
Prepare the list of elements of an excitation systems.
(c)
Explain the mathematical modeling of governor for hydraulic turbine.
OR
(a)
What is meant by speed governing system?
(b)
Discuss the role of governor in hydraulic urbine?
(c)
Discuss the elements of excitation system in detail. Also explain the various control and protective scheme of excitation system.
Q.5
14 Marks(a)
Explain application of Model 1.1.
(b)
Discuss with reasons: Load are modelled as constant impedance in stability studies.
(c)
What is voltage stability? Explain with neat diagrams.
OR
(a)
Why load is consider as a constant impedance model?
(b)
Describe the steps for calculating initial conditions of a synchronous generator.
(c)
Briefly explain : Discrete Control of HVDC Links.
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About this paper
Official Gujarat Technological University (GTU) examination paper for Power System Dynamics and Control (Summer 2026, B.E. · Electrical Engineering, Sem 7). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.