Download GTU BE/B.Tech 2019 Summer 8th Sem New 2182401 Power Electronics Applications Question Paper

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Subject Code: 2182401

GUJARAT TECHNICAL UNIVERSITY

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BE - SEMESTER-VIII (NEW) EXAMINATION - SUMMER 2019

Subject Name: Power Electronics Applications

Time: 10:30 AM TO 01:00 PM

Instructions:

1. Attempt all questions.

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2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

1. 1. Define Power Electronics. Explain advantage and disadvantage of Power Electronics. (07)
   2. Explain the requirement of Battery Operated Vehicle (03)
   3. Explain the difference between Brushless DC Motor and Brushed DC Motor used in Electrical Vehicle. (04)

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2. 1. List out the advantages and disadvantages of Variable Speed Drives (03)
   2. Explain the similarities and differences between Power Electronics and Linear Electronics. (04)
   3. Define UPS. Draw and explain working, advantages, disadvantage and application of OFF Line UPS. (07)
      OR
      

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      Define UPS. Draw and explain working, advantages, disadvantage and application of ON Line UPS.
3. 1. Define Fundamental Power Factor. List and explain one method of Power Factor Correction. (07)
   2. Explain the use of Power Electronics in Electronic Fan Regulator. (03)
   3. Draw the block diagram of Electric Motor Drive and explain the function of each component in details. (04)
      

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      OR
      Draw and explain in brief types of HVDC.
4. 1. Explain the use of Power Electronics in Induction cooking. (03)
   2. Define SMPS. Draw and explain working, advantages, disadvantage and application of SMPS. (04)

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   3. Explain the operation of SVC. (07)
5. 1. Explain the use of Power Electronics in Arc and Industrial furnaces. (03)
   2. Draw and explain use of Power Electronics in Static Excitation System of Alternator. (04)
      OR
      

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      Explain the operation of TCS.
   3. Explain use of Power Electronics in Rolling Mills and Textile Mills. (07)

1. 1. Draw and explain use of Power Electronics in VAR Compensators. (03)
   2. Explain use of Boost converter for Aircraft Application. (04)

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   3. Define the term IoT. Explain use of IoT in Smart Metering. (07)
2. 1. List the different Solar Technologies. Draw and Explain block diagram of Photovoltaic Array Interconnection to Power System. (07)
      OR
      Explain use of Buck Converter for Aircraft Application.

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   2. Define the term IoT. Explain use of IoT in Smart Grid. (03)
   3. Draw and explain block diagram for Interconnection of Renewable Energy Source to Utility Grid. (04)

Total Marks: 70

Date: 15/05/2019

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