Economic Operation of Power Plants Interview Questions:

Following are the below Economic Operation of Power Plants Interview Questions and Important Questions which is very useful for interviews and exams

1. Discuss the importance of optimal load allocation in power plants. What information must be available for optimum load allocation?

2. State the methods of loading the turbo generators.

3. Draw and discuss the following curves for thermal generating unit: (i) Input-output curve, (ii) Heat rate curve, (iii) Efficiency curve, (iv) Incremental fuel cost.

4. What are input and output characteristics of steam and hydro plants ? Explain with a neat graph.

5. Why is incremental fuel cost generally taken as total incremental cost for purpose of load allocation to thermal plant ? Explain the equal incremental cost criteria for optimum scheduling.

6. Show that for minimum continued input to carry a combined output the incremental rate for each unit will be equal.

7. Derive the expression for incremental cost of generation between different plants without considering the transmission losses.

8. Prove that the incremental rate curve intersects the heat rate curve.

9. Discuss the following :

• Equality and inequality constraints.
• Penalty factor
• Loss coefficients and
• Economic load scheduling of thermal plants.

10. What is penalty factor ? Explain the incremental costs criterion for optimum scheduling in power plants. Why is incremental fuel cost generally taken as total incremental cost for the purpose of load allocation in thermal plants ?

11. Find out the relation for ‘optimum generation scheduling’ of power plant including transmission losses.

12. Explain the optimum economic operation of power system considering transmission losses.

13. Derive an expression for transmission loss coefficients.

14. Write and explain coordination equations for thermal plants.

15. Describe about coordination equations.

16. Write the iterative procedure to solve coordination equation.

17. Explain dynamic programming solution for unit commitment.

18. What is dynamic programming ? How can it be used to specify the units to be operated for a given load ?

19. What do you understand by optimal unit commitment ? Explain the dynamic programming method for solution of optimal unit compliment problem.

20. Write short notes on the following:

• Methods of loading of turbo-alternators.
• Optimum economic operation of power plants neglecting transmission losses.
• Coordination equations.
• Iterative procedure of solving coordination equations.