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Advanced Electric Drives & Control (AEDC) important questionsMost repeated in SPPU papers

These 32 questions appeared in more than one SPPU Advanced Electric Drives & Control paper we have: 9 papers, from Feb 2023 to Nov 2025. The most-asked come first. Each one links to the papers it was asked in.

All AEDC papers and notes

Repeated questions

Endsem questions (25)

  1. 5×asked

    Explain the principle of Vector control of three phase Induction motors with a neat diagram.

    Nov 2025 ·May 2025 ·Nov 2024 ·May 2024 ·Nov 2023

  2. 4×asked

    Describe the construction of synchronous reluctance motor. Also explain the suitability of this motor for EV application.

    Nov 2025 ·May 2025 ·Nov 2024 ·May 2023

  3. 4×asked

    Explain how to obtain multi quadrant operation of Induction motor drives.

    Nov 2025 ·May 2025 ·Nov 2024 ·May 2024

  4. 4×asked

    Write the merits and demerits of VSI and CSI fed Induction motor Drives.

    Nov 2025 ·Nov 2024 ·May 2024 ·Nov 2023

  5. 4×asked

    Explain different topologies of rotor construction used in PMSM. Also state application of each.

    May 2025 ·Nov 2024 ·Nov 2023 ·May 2023

  6. 4×asked

    Explain with necessary diagram vector control of BLDC motor.

    Nov 2024 ·May 2024 ·Nov 2023 ·May 2023

  7. 3×asked

    Draw construction and working of BLDC motor for motoring and regenerative braking.

    May 2025 ·May 2024 ·Nov 2023

  8. 3×asked

    Explain requirements of motor drive requirements for traction application. Explain with neat sketch any one scheme.

    May 2025 ·May 2024 ·May 2023

  9. 3×asked

    Explain various requirements and choice of drive for EV applications. Also explain basic operations of drive. … … …

    May 2025 ·May 2024 ·May 2023

  10. 3×asked

    Write short note on any two: i) Requirements of drive for Sugar industries. ii) Requirements of drive for Solar and battery powered application. iii) Requirements of drive for Machine tools.

    May 2025 ·Nov 2024 ·Nov 2023

  11. 3×asked

    Draw construction of synchronous reluctance motor and explain its operation.

    Nov 2024 ·May 2024 ·Nov 2023

  12. 3×asked

    Draw neat diagram and explain vector control of PM synchronous motor.

    Nov 2024 ·May 2024 ·Nov 2023

  13. 2×asked

    Explain close loop speed control of 3-phase Induction Motor.

    Nov 2025 ·Nov 2023

  14. 2×asked

    Write a short note on solar and battery powered drives. 

    Nov 2025 ·Nov 2023

  15. 2×asked

    Draw speed torque characteristics of PMSM. Explain application of synchronous reluctance motor in EV.

    May 2025 ·Nov 2023

  16. 2×asked

    Explain variable DC link converter topology for BLDC motor half wave drives for motoring and regenerative braking.

    May 2025 ·Nov 2023

  17. 2×asked

    How motors are classified on the basis of duty and enclosure type. How these will help selecting motors?

    May 2025 ·May 2023

  18. 2×asked

    Describe the construction and working of BLDC Motor. Draw speed- torque characteristics.

    Nov 2024 ·May 2024

  19. 2×asked

    Explain closed loop control of BLDC drive. Also judge the suitability of this motor for EV application.

    Nov 2024 ·Nov 2023

  20. 2×asked

    Explain Plugging braking of Induction motor. What precautions are to be taken during plugging operation of Induction motor?

    Nov 2024 ·Nov 2023

  21. 2×asked

    Explain requirement and choice of drives for steel rolling mills. Why four quadrant operations are needed in rolling mill drives?

    Nov 2024 ·Nov 2023

  22. 2×asked

    What is electrical braking? Explain difference between plugging and regenerative braking of induction motor.

    Nov 2024 ·May 2024

  23. 2×asked

    Compare BLDC motor with PMSM motor.

    May 2024 ·May 2023

  24. 2×asked

    With neat diagram explain close loop control of BLDC motor.

    May 2024 ·May 2023

  25. 2×asked

    With schematic diagram explain drives required is sugar industries. Will modern power converters be useful in sugar industry? Explain. 

    Nov 2023 ·May 2023

Insem questions (7)

  1. 3×asked

    Explain motoring operation of chopper controlled separately excited DC motor drive with neat diagrams.

    Mar 2025 ·Mar 2024 ·Feb 2023

  2. 3×asked

    What is an electric drive? Discuss essential parts of electric drive with the help block diagram.

    Mar 2025 ·Mar 2024 ·Feb 2023

  3. 2×asked

    A 220V. 875 rpm and 150A D.C separately excited motor has an armature resistance of 0.06  . it is fed from single phase fully controlled converter with an ac source voltage of 230V, 50Hz. Assuming continuous conduction calculate firing angle for rated motor torque and 750 rpm.

    Mar 2025 ·Feb 2023

  4. 2×asked

    What are different components of load torque? Explain with their characteristics.

    Mar 2025 ·Feb 2023

  5. 2×asked

    Explain Multi quadrant operation and speed torque conventions of a motor driving a hoist load.

    Mar 2024 ·Feb 2023

  6. 2×asked

    Explain steady state stability and derive the criteria of steady state stability of an electrical drive system.

    Mar 2024 ·Feb 2023

  7. 2×asked

    Explain three-phase fully controlled converter drives fed separately excited DC Motor with suitable waveform and derive relation between speed and firing angle.

    Mar 2024 ·Feb 2023

Questions count as repeated when their wording matches closely across papers. Numericals that depend on a figure are left out, since the figure changes from paper to paper.