EE302

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III Year B.Tech. EEE II - Semester L T P TO C 3 1 - 4 4 EE302 POWER SYSTEM OPERATION & CONTROL Objective of the course : This subject deals with Economic operation of Power Systems, Hydrothermal schedulings and modeling of turbines, generators and automatic controllers. It emphasizes on single area and two area load frequency control and reactive power control. UNIT – I Economic Operation of Power Systems: Optimal operation of Generators in Thermal Power Stations, - heat rate Curve – Cost Curve – Incremental fuel and Production costs, input-output characteristics, Optimum generation allocation with line losses neglected. Optimum generation allocation including the effect of transmission line losses – Loss Coefficients, General transmission line loss formula.  UNIT – II Hydrothermal Scheduling : Optimal scheduling of Hydrothermal System: Hydroelectric power plant models, Scheduling problems-Short term Hydrothermal scheduling problem. UNIT – III Modelling of Turbine, Generator and Automatic Controllers : Modelling of Turbine: First order Turbine model, Block Diagram representation of Steam Turbines and Approximate Linear Models. Modelling of Generator (Steady State and Transient Models) : Description of Simplified NetworkModel of a Synchronous Machine (Classical Model), Description of Swing Equation (No Derivation) andState-Space II-Order Mathematical Model of Synchronous Machine. Modelling of Governor : Mathematical Modelling of Speed Governing System – Derivation of small signal transfer function. Modelling of Excitation System :  Fundamental Characteristics of an Excitation system, Transfer function, Block Diagram Representation of IEEE Type-1 Model. UNIT – IV Single Area Load Frequency Control : Necessity of keeping frequency constant. Definitions of Control area – Single area control – Block diagram representation of an isolated power system – Steady state analysis – Dynamic response – Uncontrolled case. Two-Area Load Frequency Control : Load frequency control of 2-area system – uncontrolled case and controlled case, tie-line bias control.  UNIT - V Load Frequency Controllers : Proportional plus Integral control of single area and its block diagram representation, steady state response – Load Frequency Control and Economic dispatch control. Reactive Power Control : Overview of Reactive Power control – Reactive Power compensation in transmission systems – advantages and disadvantages of different types of compensating equipment for transmission systems; load compensation – Specifications of load compensator, Uncompensated and compensated transmission lines: shunt and Series Compensation.  TEXT BOOKS: 1. C.L.Wadhwa, “Electrical Power Systems” 4 th  ed., Newage Internat ional, 2008. 2. I.J.Nagrath & D.P.Kothari, “M odern Power System Analysis” 2 nd  ed., Tata MC Graw Hill Publishing Company Ltd, 1999. PDF created with pdfFactory Pro trial version www.pdffactory.com

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III Year B.Tech. EEE II - Semester L T P TO C

3 1 - 4 4 

EE302 POWER SYSTEM OPERATION & CONTROL

Object ive of the course :

This subject deals with Economic operation of Power Systems, Hydrothermal schedulings and modeling ofturbines, generators and automatic controllers. It emphasizes on single area and two area load frequency

control and reactive power control. 

UNIT – I

Economic Operation of Power Systems: Optimal operation of Generators in Thermal Power Stations, -

heat rate Curve – Cost Curve – Incremental fuel and Production costs, input-output characteristics, Optimum

generation allocation with line losses neglected. Optimum generation allocation including the effect of

transmission line losses – Loss Coefficients, General transmission line loss formula. 

UNIT – II

Hydrothermal Scheduling : Optimal scheduling of Hydrothermal System: Hydroelectric power plant

models, Scheduling problems-Short term Hydrothermal scheduling problem. 

UNIT – III

Modelling of Turbine, Generator and Automatic Controllers : Modelling of Turbine: First order Turbine

model, Block Diagram representation of Steam Turbines and Approximate Linear Models.

Modelling of Generator (Steady State and Transient Models) : Description of Simplified NetworkModel of

a Synchronous Machine (Classical Model), Description of Swing Equation (No Derivation) andState-Space

II-Order Mathematical Model of Synchronous Machine.

Modelling of Governor : Mathematical Modelling of Speed Governing System – Derivation of small signal

transfer function.

Modelling of Excitation System : Fundamental Characteristics of an Excitation system, Transfer function,

Block Diagram Representation of IEEE Type-1 Model. 

UNIT – IV

Single Area Load Frequency Control : Necessity of keeping frequency constant. Definitions of Controlarea – Single area control – Block diagram representation of an isolated power system – Steady state

analysis – Dynamic response – Uncontrolled case.

Two-Area Load Frequency Control : Load frequency control of 2-area system – uncontrolled case and

controlled case, tie-line bias control. 

UNIT - V

Load Frequency Controllers :  Proportional plus Integral control of single area and its block diagram

representation, steady state response – Load Frequency Control and Economic dispatch control.

Reactive Power Control : Overview of Reactive Power control – Reactive Power compensation in

transmission systems – advantages and disadvantages of different types of compensating equipment for

transmission systems; load compensation – Specifications of load compensator, Uncompensated and

compensated transmission lines: shunt and Series Compensation. 

TEXT BOOKS:

1. C.L.Wadhwa, “Electrical Power Systems” 4th ed., Newage International, 2008.

2. I.J.Nagrath & D.P.Kothari, “Modern Power System Analysis” 2nd  ed.,

Tata MC Graw Hill Publishing Company Ltd, 1999.

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REFERENCE BOOKS:

1. J.Duncan Glover and M.S.Sarma, “Power System Analysis and Design” 4th ed., Thomson, 2008.

2. B.M.Weedy, B.J.Cary, “Electric Power systems” 4th  ed., Wiley

Eastern Ltd., 1999.

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