Power System Operation & Control Imp Qusts Pdf file – PSOC Important Questions
Please find the attached pdf file of Power System Operation & Control Important Questions Bank – PSOC Imp Qusts
Link – PSOC Question Bank
UNIT-I
Economic Operation of Power Systems-1
- Define in detail the following:
i.Control variables
ii.Disturbance variables
iii.State variables. - Draw incremental fuel cost curve.
- Explain the significance of equality and inequality constraints in the economic al- location of generation among different plants in a system.
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UNIT-II
Economic Operation of Power Systems-2
- Draw flow chart for economic scheduling without considering line losses.
- Explain optimal load flow solution without inequality constraints.
- Derive transmission loss formula in terms of B- coefficients.
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UNIT-III
Hydrothermal Scheduling
- Discuss the combined hydro- electric and steam station operation.
- Describe different methods for solving hydro thermal scheduling.
- What are the requirements of control strategy in integral control? Explain the role played by the controller’s gain setting in the frequency control.
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UNIT-1V
Modeling of Turbines
- Describe the mathematical model of Speed – Governing System.
- Explain D.C excitation system and A.C excitation system.
- Derive the model of a speed governing system and represent it by a block diagram.
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UNIT-V
Single Area Load Frequency Control
- Explain the necessity of keeping the frequency constant in a power system.
- Explain what is meant by control area. Obtain the transfer function model and explain ALFC of a single area of an isolated power system.
- Write notes on:
i)Control area concept.ii)Area control error.
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