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Name of the College : Easwari Engineering College
University : Anna University
Subject Code/Name : Power Electronics For Renewable Energy Resources
Dept : Electrical & Electronics
Degree : M.E
Year: II
Website : srmeaswari.ac.in
Document Type : Question Bank

Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/srmeaswari.ac.in/3323-pere%20qb.doc

Easwari Power Electronics For Renewable Energy Resources

Power Electronics For Renewable Energy Resources Question Bank

Related / Similar Question Paper :
Easwari College ME Solar & Energy Storage Systems Question Bank

UNIT-1

1. Discuss the influence of different renewable energy sources with special reference to the global warming context.
2. Describe the consequences of green house effect.
3. Enumerate the prospects pf ocean and biomass energy.
4. Explain the qualitative study of different renewable energy resources.
5. Explain the impacts of renewable energy generation on environment.

6. How does environment get affected by the use of the renewable energy? And also discuss the GHG emissions from the various energy sources.
7. Compare and contrast the conventional energy sources with renewable energy sources in the environmental aspects.
8. What are fuel cells? Explain the operation of fuel cells based energy system with a neat schematic.

9. Explain the following with neat schematic.
(i) Hydrogen energy
(ii) Energy from the Ocean.

UNIT-2

1. Draw the schematic of squirrel cage induction generator and explain the construction and principle of operation in detail. Also discuss the characteristics and issues briefly.
2. Explain the principle of operation and constructional features of doubly fed induction generator with a neat diagram. Analyse the merits and demerits of the above.

3. Explain machine capacity factor and capacity utilization factor. Explain the principle of operation of double output induction generator system with a neat diagram.
4. Draw the circuit model of self excited induction generator and explain the methods used for steady state analysis.
5. With neat diagram, explain the principle of PMSG and analyze in detail.

6. Explain the operation of SCIG in details with proper analysis.
7. Explain with neat diagram the operation of an induction generator.
8. Bring out the merits and demerits of mains excited and capacitor excited induction generators.
9. Describe the construction and theory of operation of PMSG.

UNIT-3

1. Explain with neat diagram the philosophy of operation of a solar source fed boost converter.
2. Bring out the delicacies involved in sizing the solar arrays.
3. Describe how a three phase line commutated converter is operated as an inverter.
4. Discuss the limitations in the operation of matrix converter.
5. Explain the principle and operation of line commutated converters in inverse mode.

6. Explain the three phase uncontrolled rectifiers in detail.
7. Write short note on PWM inverters.
8. Explain the operation of line commutated converter under inversion mode with the help of a neat circuit diagram and necessary waveforms.
9. Write a short note on the grid interactive inverters.

10. A single phase full bridge inverter has a resistive load of R=3 ohms and the dc input voltage is E=50V. Compute the RMS output voltage at the fundamental frequency, the output power, the average and peak currents of each thyristor and peak reverse blocking voltage of each thyristor.

11. Consider buck boost converter of input dc voltage E=14V. The duty cycle a=0.6 and the switching frequency is 25 KHz. The inductance L=180µH and the filter capacitance C=220µF. The average load current I=1.5 A. Compute the average output voltage on peak current of the devices.

UNIT-4

1. Explain with necessary diagram, the stand alone fixed speed and variable speed operation of WECS. State the advantages of fixed speed system over variable speed system.
2. Discuss in detail the grid system characteristics and explain with a neat diagram the stand alone and grid integrated solar system.

3. Explain in detail of the stand alone operation of fixed and variable speed energy conversion systems.
4. Write short on
(i) Grid connected PMSG.
(ii) SCIG based WECS.
5. Explain with the help of a neat diagram the functions of various blocks of a WECS.