Gujarat Technological UniversitySummer 2025 examination

GTU 3170906 Advanced Power Electronics Summer 2025 Question Paper & PDF

B.E. · Electrical Engineering · Semester 7 · Subject code 3170906
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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.1

14 Marks
(a)
3 marks
Define duty cycle and write its importance.
(b)
4 marks
Explain fly back converter.
(c)
7 marks

Illustrate the push pull converter with neat circuit diagram & waveform and derive the equation of output voltage in terms of input voltage & duty cycle.

Q.2

14 Marks
(a)
3 marks

Differentiate between continuous mode of conduction and Discontinuous mode of conduction .

(b)
4 marks

What is the need of Resonant Converter? Compare Series Loaded Resonant (SLR) converter with Parallel loaded resonant (PLR) Converter

(c)
7 marks

What do you mean by Zero Voltage Switching (ZVS). With neat circuit and waveform explain the operation of ZVS Converter

(c)
7 marks

Explain the operation of two transistor forward converter with circuit diagram, waveform and required equation.

Q.3

14 Marks
(a)
3 marks
Give Classification of resonant converters.
(b)
4 marks

Classify carrier based PWM technique for multilevel inverter. Discuss any one in detail .

(c)
7 marks

Draw circuit diagram and output voltage phasor diagram of 12- pulse converter.

(a)
3 marks
Compare the three topologies of multilevel inverter.
(b)
4 marks

What are the advantages of cascaded H bridge multi-level inverter over other two topologies?

(c)
7 marks

Explain following transformer connection with phasor diagram used in multi pulse converter. (a) Y-Z1 (b) Δ-Z1

Q.4

14 Marks
(a)
3 marks
Explain star/delta phase shifting transformer with phasor diagram
(b)
4 marks
What is phase angle compensation in transmission system?
(c)
7 marks

Explain TCR with circuit diagram. Draw current and voltage waveforms for different values of α

(a)
3 marks
Explain different types of HVDC link.
(b)
4 marks

Draw block diagram of HVDC transmission system. Mention equipment required for HVDC system.

(c)
7 marks

Explain working of Static Synchronous Series Compensator (SSSC) with neat diagrams

Q.5

14 Marks
(a)
3 marks
State the need of reactive power compensation.
(b)
4 marks

Discuss the principle of series compensation and state various methods for series compensation

(c)
7 marks

Explain operating principle of Unified power flow controller (UPFC).

(a)
3 marks
Give classification and applications of phase shifting transformer
(b)
4 marks
Discuss static characteristics of STATCOM
(c)
7 marks
Explain the working principle of TSC-TCR. .

More Advanced Power Electronics papers

Questions repeat across sessions. Working through two or three papers shows you which topics GTU asks most.

Summer 202670 marks · 5 questions

Other Semester 7 subjects

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About this paper

Official Gujarat Technological University (GTU) examination paper for Advanced Power Electronics (Summer 2025, 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.

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