Transient Phenomena in Electrical Power Systems

Transient Phenomena in Electrical Power Systems analyzes transient phenomena in electro-mechanical systems, and of the steady conditions which precede or follow such transient condition. The book deals with the short-period transient processes connected with changes in the electro-mechanical condition of the system, the normal steady state, and also the steady fault condition. The text also investigates electro-mechanical and electromagnetic phenomena, including the inter-actions of the components in the system, with emphasis on the determination of conditions leading to stability. The book deals with transient phenomena either by assuming linearity for all circuit parameters, or by allowing for some non-linearity. The text progresses from simplified physical concepts to more rigorous developments of appropriate mathematical models using principles related to the laws of mechanics and to the laws of electromagnetism. The book recommends practical stability calculations, some methods of improving power-handling capacities, as well as the stability of transmission lines and power systems. The book is beneficial to electrical engineers, technical designers, and structural engineers whose works are related with power generation or hydro-electric stations.

Author's Preface to the English Edition

Translators' Preface

Principal Symbols

Introduction

General Aspects of the Subject

General Classification of Transient Phenomena

Chapter 1. Characteristics of the Components of an Electrical System

1.1. Excitation Systems for Synchronous Generators and Condensers

1.2. Characteristics of Generators

1.3. Characteristics of Prime Movers

1.4. Characteristics of Loads

Chapter 2. Large Disturbances Associated with Large Variations of Speed

2.1. General Characteristics and Basic Equations

2.2. Falling-Out of Synchronism and Stable Asynchronous Operation

2.3. Equal-Area Method at Large Values of Slip

2.4. Resynchronization and Self-Synchronization of Alternators Operating Asynchronously Above Synchronous Speed

2.5. Resynchronization and Self-Synchronization for Different Initial Conditions

Chapter 3. Small Disturbances Associated with Small Variations of Speed

3.1. Statement of the Problem

3.2. The Equation of an Unregulated System Subject to Small Disturbances and the Analysis of its Steady-State Stability

3.3. Analysis of the Characteristic Equation By the Method of Separation of Domains

3.4. Analysis of the Steady-State Stability of a Simple Regulator System by the Method of Small Oscillations

3.5. Steady-State Stability of Simple Systems with Forced Regulation

3.6. General Assessment of the Stability of Systems with Controlled Excitation

3.7. The Behaviour of an Electrical System When Subjected to Small Sustained Disturbances

Chapter 4. Recommendations for Practical Stability Calculations

4.1. Calculations of Steady-State Stability

4.2. Calculations of Transient Stability

4.3. The Application of Analysers, Models, and Computers to Power System Calculations

4.4. Automatic Control of Power Systems by Means of Digital Computers

Chapter 5. Methods of Improving the Power-Handling Capacity and Stability of Transmission Lines and Power Systems

5.1. General Statement of the Problem

5.2. Operational Procedures For Improving the Stability and Reliability of a System

5.3. Methods of Connexion of Power Systems

5.4. Operation Out of Synchronism as a Means of Improving the Resultant Stability

References

Index