Electrical Machines with MATLAB®  book cover
2nd Edition

Electrical Machines with MATLAB®

ISBN 9781439877999
Published November 16, 2011 by CRC Press
654 Pages 8 Color & 293 B/W Illustrations

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Book Description

Electrical Machines with MATLAB® encapsulates the invaluable insight and experience that eminent instructor Turan Gönen has acquired in almost 40 years of teaching. With simple, versatile content that separates it from other texts on electrical machines, this book is an ideal self-study tool for advanced students in electrical and other areas of engineering. In response to the often inadequate, rushed coverage of fundamentals in most basic circuit analysis books and courses, this resource is intelligently designed, easy to read, and packed with in-depth information on crucial concepts.

Topics include three-phase circuits, power measurement in AC circuits, magnetic circuits, transformers, and induction, synchronous, and direct-current machines. The book starts by reviewing more basic concepts, with numerous examples to clarify their application. It then explores new "buzzword" topics and developments in the area of electrical machine applications and electric power systems, including:

  • Renewable energy
  • Wind energy and related conversion
  • Solar energy
  • Energy storage
  • The smart grid

Using International Systems (IS) units throughout, this cross-disciplinary design guide delves into commonly used vocabulary and symbols associated with electrical machinery. Several new appendices contain tools such as an extensive glossary to explain important terms. Outlining a wide range of information—and the many different ways to apply it—this book is an invaluable, multifunctional resource for students and professors, as well as practicing professionals looking to refresh and update their knowledge.

Table of Contents

Basic Concepts

Distribution System

Impact of Dispersed Storage and Generation

Brief Overview of Basic Electrical Machines

Real and Reactive Powers in Single-Phase AC Circuits

Three-Phase Circuits

Three-Phase Systems

Unbalanced Three-Phase Loads

Measurement of Average Power in Three-Phase Circuits

Power Factor Correction

Magnetic Circuits

Magnetic Field of Current-Carrying Conductors

Ampère’s Magnetic Circuital Law

Magnetic Circuits

Magnetic Circuit with Air Gap

Brief Review of Ferromagnetism

Magnetic Core Losses

How to Determine Flux for a Given MMF

Permanent Magnets


Transformer Construction

Brief Review of Faraday’s and Lenz’s Laws of Induction

Ideal Transformer

Real Transformer

Approximate Equivalent Circuit of a Real Transformer

Determination of Equivalent-Circuit Parameters

Transformer Nameplate Rating

Performance Characteristics of a Transformer

Three-Phase Transformers

Three-Phase Transformer Connections


Three-Winding Transformers

Instrument Transformers

Inrush Current

Electromechanical Energy Conversion Principles

Fundamental Concepts

Electromechanical Energy Conversion

Study of Rotating Machines

Singly Excited Rotating Systems

Multiply Excited Rotating Systems

Cylindrical Machines

Force Produced on a Conductor

Induced Voltage on a Conductor Moving in a Magnetic Field

Induction Machines

Construction of Induction Motors

Rotating Magnetic Field Concept

Induced Voltages

Concept of Rotor Slip

Effects of Slip on the Frequency and Magnitude of Induced Voltage of the Rotor

Equivalent Circuit of an Induction Motor

Performance Calculations

Equivalent Circuit at Start-Up

Determination of Power and Torque by Use of Thévenin’s Equivalent Circuit

Performance Characteristics

Control of Motor Characteristics by Squirrel-Cage Rotor Design

Starting of Induction Motors

Speed Control

Tests to Determine Equivalent-Circuit Parameters

Synchronous Machines

Construction of Synchronous Machines

Field Excitation of Synchronous Machines

Synchronous Speed

Synchronous Generator Operation

Equivalent Circuits

Synchronous Motor Operation

Power and Torque Characteristics

Stiffness of Synchronous Machines

Effect of Changes in Excitation

Use of Damper Windings to Overcome Mechanical Oscillations

Starting of Synchronous Motors

Operating a Synchronous Motor as a Synchronous Condenser

Operating a Synchronous Motor as a Synchronous Reactor

Tests to Determine Equivalent-Circuit Parameters

Capability Curve of Synchronous Machine

Parallel Operation of Synchronous Generators

Direct-Current Machines

Constructional Features

Brief Review of Armature Windings

Elementary DC Machine

Armature Voltage

Methods of Field Excitation

Armature Reaction


Compensating Windings

Magnetization Curve

DC Generators

Separately Excited Generator

Self-Excited Shunt Generator

Series Generator

Compound Generator

Voltage Regulation

Developed Power

Developed Torque

Power Flow and Efficiency

DC Motor Characteristics

Control of DC Motors

DC Motor Starting

DC Motor Braking

Single-Phase and Special-Purpose Motors

Single-Phase Induction Motors

Starting of Single-Phase Induction Motors

Classification of Single-Phase Induction Motors

Universal Motors

Single-Phase Synchronous Motors

Subsynchronous Motors

Permanent-Magnet DC Motors

Transients and Dynamics of Electric Machines

DC Machines

Separately Excited DC Generator

Separately Excited DC Motor

Synchronous Generator Transients

Short-Circuit Transients

Transient Stability

Swing Equation

Renewable Energy

Renewable Energy

Impact of Dispersed Storage and Generation

Integrating Renewables into Power Systems

Distributed Generation

Renewable Energy Penetration

Active Distribution Network

Concept of Microgrid

Wind Energy and Wind Energy Conversion System (WECS)

Advantages and Disadvantages of Wind Energy Conversion Systems

Categories of Wind Turbines

Visual Impact of Wind Turbines

Types of Generators Used in Wind Turbines

Wind Turbine Operating Systems

Meteorology of Wind

Power in the Wind

Effects of a Wind Force

Impact of Tower Height on Wind Power

Wind Measurements

Characteristics of a Wind Generator

Efficiency and Performance

Efficiency of a Wind Turbine

Other Factors to Define the Efficiency

Grid Connection

Some Further Issues Related to Wind Energy

Development of Transmission System for Wind Energy in the United States

Energy Storage

Wind Power Forecasting

Solar Energy Systems

Crystalline Silicon

Effect of Sunlight on Solar Cell’s Performance

Effects of Changing Strength of the Sun on a Solar Cell

Temperature’s Effect on Cell Characteristics

Efficiency of Solar Cells

Interconnection of Solar Cells

Overall System Configuration

Thin-Film PV

Concentrating PV

PV Balance of Systems

Types of Conversion Technologies

Linear CSP Systems

Power Tower CSP Systems

Dish/Engine CSP Systems

PV Applications

Energy Storage Systems

Storage Systems

Storage Devices

Battery Types

Operational Problems in Battery Usage

Fuel Cells

The Smart Grid

Need for Establishment of Smart Grid

Roots of the Motivation for the Smart Grid

Distribution Automation

Active Distribution Networks

Volt/Var Control in Distribution Networks

Existing Electric Power Grid

Supervisory Control and Data Acquisition

Advanced SCADA Concepts

Substation Controllers

Advanced Developments for Integrated Substation Automation

Evolution of Smart Grid

Smart Microgrids

Topology of a Microgrid

Topology of a Smart Grid

Standards of Smart Grids

Existing Challenges to the Application of the Concept of Smart Grids


Appendix A: Brief Review of Phasors

Appendix B: Per-Unit System

Appendix C: Salient-Pole Synchronous Machines

Appendix D: Unit Conversions from the English System to SI System

Appendix E: Unit Conversions from the SI System to English System

Appendix F: Stator Windings

Appendix G: Glossary for Electrical Machines Terminology


Answers to Selected Problems



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Turan Gönen is professor of electrical engineering and director of the Electrical Power Educational Institute at California State University, Sacramento (CSUS). Previously, he was professor of electrical engineering and director of the Energy Systems and Resources Program at the University of Missouri–Columbia. Professor Gönen also held teaching positions at the University of Missouri– Rolla, the University of Oklahoma, Iowa State University, Florida International University, and Ankara Technical College. He has taught electrical machines and electric power engineering for more than 38 years. Professor Gönen also has a strong background in the power industry. He worked as a design engineer in numerous companies for eight years, both in the United States and abroad. He has served as a consultant for the United Nations Industrial Development Organization (UNIDO), Aramco, Black & Veatch Consultant Engineers, and the public utility industry.