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Power System Operation & Control (PSOC) important questionsMost repeated in SPPU papers

These 30 questions appeared in more than one SPPU Power System Operation & Control paper we have: 11 papers, from Oct 2022 to Nov 2025. The most-asked come first. Each one links to the papers it was asked in.

All PSOC papers and notes

Repeated questions

Endsem questions (27)

  1. 6×asked

    Explain in detail: Interchange evaluation with unit commitment.

    Nov 2025 ·May 2025 ·May 2024 ·Nov 2023 ·May 2023 ·Nov 2022

  2. 5×asked

    State the procedure to draw the QV curve. Hence, draw the QV curve with showing stable-unstable regions. … … …

    Nov 2025 ·May 2025 ·Nov 2023 ·May 2023 ·Nov 2022

  3. 5×asked

    State the various methods for the unit commitment. Hence, explain the ‘priority list method’ for unit commitment.

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

  4. 5×asked

    What is the interconnection of the power system? State its advantages.

    Nov 2025 ·May 2024 ·Nov 2023 ·May 2023 ·Nov 2022

  5. 5×asked

    With the neat block diagram, explain two areas of load frequency control.

    Nov 2025 ·May 2025 ·May 2024 ·May 2023 ·Nov 2022

  6. 5×asked

    Explain the heat rate and cost curve of thermal generating units.

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

  7. 4×asked

    Derive the expression of the power-voltage relationship for drawing the PV curve in detail and hence draw the PV curve with showing stable-unstable region.

    Nov 2025 ·May 2025 ·May 2023 ·Nov 2022

  8. 4×asked

    Give the detailed classification of the voltage stability based on the time frame and based on nature of the disturbance.

    Nov 2025 ·May 2025 ·Nov 2023 ·Nov 2022

  9. 4×asked

    What are the effects of voltage instability on the power system? Explain in detail.

    Nov 2025 ·Nov 2023 ·May 2023 ·Nov 2022

  10. 4×asked

    What is the need for a unit commitment study in the power system? Explain.

    Nov 2025 ·May 2024 ·May 2023 ·Nov 2022

  11. 4×asked

    Explain with a block diagram the working of proportional puls integral load frequency controller for an isolated power system.

    May 2025 ·Nov 2024 ·Nov 2023 ·May 2023

  12. 3×asked

    Define the following terms: i) Voltage Stability ii) Voltage Collapse

    Nov 2025 ·May 2025 ·Nov 2022

  13. 3×asked

    Draw and explain the working of speed governor system of turbo generator.

    Nov 2025 ·May 2025 ·Nov 2023

  14. 3×asked

    Explain the concept of a power pool in energy control. State and explain the advantages associated with a power pool? Also, discuss constraints related to the power pool.

    Nov 2025 ·May 2025 ·Nov 2022

  15. 3×asked

    Explain the following. i) Emergency power interchange ii) Energy banking.

    Nov 2025 ·May 2023 ·Nov 2022

  16. 3×asked

    Explain the concept of Area Control Error (ACE).

    May 2025 ·May 2024 ·Nov 2023

  17. 3×asked

    Explain the droop characteristics of the speed governor system.

    Nov 2024 ·May 2024 ·May 2023

  18. 3×asked

    Explain the economic interchange between interconnected utilities with an example.

    Nov 2024 ·May 2024 ·May 2023

  19. 2×asked

    Explain Lagrange multiplier method used for economic load dispatch without transmission loss and no constraints on generation limit, while meeting load. 2

    Nov 2025 ·May 2023

  20. 2×asked

    Explain the block diagram and frequency response of the proportional plus integral controller in the single area load frequency control.

    Nov 2025 ·Nov 2022

  21. 2×asked

    Explain the dynamic programming method used for unit commitment.

    Nov 2025 ·May 2025

  22. 2×asked

    Explain the following voltage stability indices with their formula i) Fast Voltage Stability Index (FVSI) ii) Line Stability Index (Lmn) iii) Line stability factor (LQP)

    Nov 2025 ·Nov 2022

  23. 2×asked

    Obtain the generator model, turbine model and power system model of single area load frequency control.

    Nov 2025 ·May 2025

  24. 2×asked

    Write the short note and necessity of automatic generation control (AGC).

    Nov 2025 ·Nov 2023

  25. 2×asked

    Explain the concept of energy banking and how it facilitates power exchange between utilities.

    May 2025 ·Nov 2024

  26. 2×asked

    Explain with mathematical formulation the economic load dispatch without transmission loss and including equality constraints of meeting load.

    May 2025 ·Nov 2024

  27. 2×asked

    Explain the necessity of maintaining the constant frequency of the system.

    May 2024 ·May 2023

Insem questions (3)

  1. 3×asked

    Explain working principle of TCSC with the help of circuit diagram, V-I characteristic, advantages and its application.

    Aug 2025 ·Sep 2024 ·Oct 2022

  2. 2×asked

    What is necessity of reactive power control? What are the ways to control reactive power? Explain any one.

    Aug 2025 ·Oct 2022

  3. 2×asked

    What is the loading capability curve of a synchronous generator? Sketch the loading capability curve of a synchronous generator showing necessary labels. Hence explain field current limit.

    Sep 2024 ·Oct 2022

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.