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Electric Power Systems

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The definitive textbook for Power Systems students, providing a grounding in essential power system theory while also focusing on practical power engineering applications.

Electric Power Systems has been an essential book in power systems engineering for over thirty years. Bringing the content firmly up-to-date whilst still retaining the flavour of Weedy's extremely popular original, this Fifth Edition has been revised by experts Nick Jenkins, Janaka Ekanayake and Goran Strbac. ...

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The definitive textbook for Power Systems students, providing a grounding in essential power system theory while also focusing on practical power engineering applications.

Electric Power Systems has been an essential book in power systems engineering for over thirty years. Bringing the content firmly up-to-date whilst still retaining the flavour of Weedy's extremely popular original, this Fifth Edition has been revised by experts Nick Jenkins, Janaka Ekanayake and Goran Strbac. This wide-ranging text still covers all of the fundamental power systems subjects but is now expanded to cover increasingly important topics like climate change and renewable power generation. Updated material includes an analysis of today's markets and an examination of the current economic state of power generation. The physical limits of power systems equipment - currently being tested by the huge demand for power - is explored, and greater attention is paid to power electronics, voltage source and power system components, amongst a host of other updates and revisions.

  • Supplies an updated chapter on power system economics and management issues and extended coverage of power system components. Also expanded information on power electronics and voltage source, including VSC HVDC and FACTS.
  • Updated to take into account the challenges posed by different world markets, and pays greater attention to up-to-date renewable power generation methods such as wind power.
  • Includes modernized presentation and greater use of examples to appeal to today's students, also retains the end of chapter questions to assist with the learning process. Also shows students how to apply calculation techniques.
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Product Details

  • ISBN-13: 9780470682685
  • Publisher: Wiley
  • Publication date: 9/4/2012
  • Edition description: New Edition
  • Edition number: 5
  • Pages: 512
  • Sales rank: 1,436,371
  • Product dimensions: 6.90 (w) x 9.60 (h) x 1.40 (d)

Table of Contents

Preface to First Edition ix

Preface to Third Edition xi

Preface to Third, Revised Edition xiii

Preface to Fourth Edition xv

Preface to Fifth Edition xvi

Symbols xvii

1 Introduction 1

1.1 History

1.2 Characteristics Influencing Generation and Transmission

1.3 Operation of Generators

1.4 Energy Conversion

1.5 Renewable Energy Sources

1.6 Energy Storage

1.7 Environmental Aspects of Electrical Energy

1.8 Transmission and Distribution Systems

1.9 Utilization


2 Basic Concepts

2.1 Three-Phase Systems

2.2 Three-Phase Transformers

2.3 Active and Reactive Power

2.4 The Per-Unit System

2.5 Power Transfer and Reactive Power

2.6 Harmonics in Three-Phase Systems

2.7 Useful Network Theory


3 Components of a Power System

3.1 Introduction

3.2 Synchronous Machines

3.3 Equivalent Circuit Under Balanced Short-Circuit Conditions

3.4 Synchronous Generators in Parallel

3.5 The Operation of a Generator on Infinite Busbars

3.6 Automatic Voltage Regulators (AVRs)

3.7 Lines, Cables, and Transformers

3.8 Transformers

3.9 Voltage Characteristics of Loads


4 Control of Power and Frequency

4.1 Introduction

4.2 The Turbine Governor

4.3 Control Loops

4.4 Division of Load between Generators

4.5 The Power-Frequency Characteristic of an Interconnected


4.6 System Connected by Lines of Relatively Small Capacity


5, Control of Voltage and Reactive Power

5.1 Introduction

5.2 The Generation and Absorption of Reactive Power

5.3 Relation Between Voltage, Power, and Reactive Power at a Node

5.4 Methods of Voltage Control:

(i) Injection of Reactive Power

5.5 Methods of Voltage Control:

(ii) Tap-Changing Transformers

5.6 Combined Use of Tap-Changing Transformers and

Reactive-Power Injection

5.7 Phase shift trasnformer

5.8 Voltage Collapse

5.9 Voltage Control in Distribution Networks

5.10 Long Lines

5.11 General System Considerations


6 Load Flows

6.1 Introduction

6.2 Circuit analysis versus load flow analysis

6.3 Gauss Siedal method

6.4 Load flows in radial and simple loop networks

6.4 Load flows in Large Systems

6.5 Example of a Complex Load Flow

6.6 Computer simulations


7 Fault Analysis

7.1 Introduction

7.2 Calculation of Three-Phase Balanced Fault Currents

7.3 Method of Symmetrical Components

7.4 Representation of Plant in the Phase-Sequence Networks

7.5 Types of Fault

7.6 Fault Levels in a Typical System

7.7 Power in Symmetrical Components

7.8 Systematic Methods for Fault Analysis in Large Networks

7.9 Neutral Grounding

7.11 Interference with Communication Circuits—Electromagnetic

Compatibility (EMC)


8 System Stability

8.1 Introduction

8.2 Equation of Motion of a Rotating Machine

8.3 Steady-State Stability

8.4 Transient Stability

8.5 Transient Stability—Consideration of Time

8.6 Transient Stability Calculations by Computer

8.7 Dynamic or small signal stability

8.8 Stability of Loads Leading to Voltage Collapse

8.9 Further Aspects

8.10 Multimachine Systems

8.11 Energy-Type Functions

8.12 Improvement of stability


9 Direct-Current Transmission

9.1 Introduction

9.2 Current Source and Voltage Source Converters

9.3 Semi-conductor Valves for High Voltage DC Converters

9.4 Current Source h.v.d.c.

9.5 Voltage Source h.v.d.c.


10 Overvoltages and Insulation Requirements

10.1 Introduction

10.2 Generation of Overvoltages

10.3 Protection Against Overvoltages

10.4 Insulation Coordination

10.5 Propagation of Surges

10.6 Determination of System Voltages Produced by Travelling


10.7 Electromagnetic Transient Program (EMTP)


11 Substations and Protection

11.1 Introduction

11.2 Switchgear

11.3 Qualities Required of Protection

11.4 Components of Protective Schemes

11.5 Protection Systems

11.6 Distance Protection

11.7 Unit Protection Schemes

11.8 Generator Protection

11.9 Transformer Protection

11.10 Feeder Protection

11.11 System Monitoring and Control

11.12 System Security and Emergency Control


12 Fundamentals of the Economics of Operation and Planning of Electricity Systems

12.1 Economic Operation of Generation Systems

12.2 Fundamental principles of Generation System Planning

12.3 Economic Operation of Transmission Systems

12.4 Fundamental principles of Transmission System Planning

12.5 Distribution and Transmission Network security considerations

12.6 Drivers for change


Appendix I Synchronous Machine Reactances

Appendix II Typical Transformer Impedances

Appendix Ill Typical Overhead Line Parameters

Bibliography and Further Reading


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