UNIT# 1 Automatic generation and voltage control
1) Interpret
importance of frequency to be maintained.
2) Define system frequency under transient.
3) Explain
speed governor for controlling frequency.
4) Explain
the automatic generation control scheme.
5) Organize two-area frequency control scheme with block diagram.
6) Formulate
state space model of two –area system for load frequency control.
7) Discuss
load frequency control with generation Rate constraints.
Unit 2 : Power System Security :
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1)
Built block representation of power system
security levels.
2)
Write a note on contingency selection.
3)
Give flow chart for contingency selection.
4)
Discuss various sensitivity factors.
5)
Explain contingency analysis and security
factors of power system.
6)
Analyze power
system security based on : 1. System monitoring 2. Contingency Analysis
7)
Elaborate generation shift factor and line
outage distribution factor in relation to security analysis. How they are
helpful in security analysis?
8)
Explain power system operating states with
neat diagram
9)
Classify power System state indicating all security levels
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Unit #3 Reactive Power
Control and Voltage control:
1)
Obtain expression for the reactive power
requirement of a transmission line.
2)
Explain surge impedance loading with it
expression.
3)
Obtain the reactive power loss characteristics
of transmission line.
4)
Model the operation of an uncompensated
transmission line at no-load.
5)
Find the expression of receiving end voltage of
uncompensated line. Draw the relevant characteristics.
6)
Establish relationships between voltage
regulation and reactive power. Explain how it is governed by short-circuits
capacity.
7)
Obtain relation between maximum power and line
length/line angle of power line.
8)
Explain line loadability with its expression.
9)
Show that for a lossless transmission line
two-bus model Q-V and P-δ Quantities are closely coupled.
10)
Prove that real power loading and voltage
regulation has implication in reactive power Demands.
11)
Show implication of power angle on voltage at
load bus.
Unit 4 : STATE ESTIMATION:
1 1) Define state estimation? Discuss External
System Equivalency?
2) Explain how state estimation used in power system
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3)
Explain weighted least squares estimation
technique.
4)
Evaluate estimation of non linear measurements is done using
Weighted LSE.
5)
Explain injection only algorithm for estimation
6)
Explain line only algorithm for estimation.
7)
Discuss problem of ill conditioning.
8) Detect bad data in case of state estimation
9)
Distinguish detection process , identification process and suppression of bad data in the
measurement vector.
10) Propose
various applications of state estimations in a power system
11) Explain Least Square Approximation method of state
estimation.
(12) Discuss Tracking State Estimation for Power system
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13) Explain the Treatment of Bad Data of State Estimation of Power system./Explain identification of bad data and suppression of bad data.
14) Describe Least Square Estimation (LSE) and Weighted LSE for estimation of x (vector of n random variables) using another vector y of variables m (>n).
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