About Book

Electrical Engineering is that branch of engineering which deals with the study of application of electricity, electronics and electromagnetism. In engineering practice, the distinction between electrical engineering and electronics is usually based on the comparative strength of the electric currents used. In this sense, electrical engineering is the branch dealing with “heavy current”—that is, electric light and power systems and apparatuses—whereas electronics engineering deals with such “light current” applications as telephone and radio communication, computers, radar, and automatic control systems. It is an overarching field and includes various subfields like radio-frequency engineering, power engineering, signal processing, telecommunications, microelectronics, digital computers, control systems, instrumentation and radio-frequency engineering, etc. It is also spread across a range of specialties such as acoustics, speech, signal processing to electromagnetic compatibility, automobiles to vehicular technology, geo-science and remote sensing, laser and electro-optics, robotics, ultra-sonic, ferroelectrics and frequency control. This book aims to provide detailed information of electrical engineering. It gives thorough insights into the various subfields of this area. It deals with electrical engineering simulation, electrical parameters, electrical power generation, electrical machines, power system, nanofluid and magnetic fluid. It is a valuable compilation of topics, ranging from the basic to the most complex theories and principles in the field of electrical engineering. Latest developments in various fields of materials and their sciences/engineering, processing and applications have been included. Different approaches, evaluations and methodologies on electrical engineering have been included in it. While understanding the long-term perspectives of the topics, the book makes an effort in highlighting their impact as a modern tool for the growth of the discipline. This book is meant for students who are looking for an elaborate reference on this field.

Preface............................................................................................................v

Chapter 1 Autowave Processes in Magnetic Fluid: Electrically Controlled Interference...................................................................................................1

Abstract...................................................................................................1

1. Introduction............................................................................................1

2. Materials and methods........................................................................2

3. Experimental results.............................................................................5

4. The physical model of the autowave process...............................10

5. Synchronization of the autowave process under the influence of

a periodic electric signal....................................................................12

6. Mathematical model of the autowave process..............................15

7. Conclusions..........................................................................................17

Acknowledgements.............................................................................18

Thanks...................................................................................................18

Chapter 2 Basics of High-Speed Electrical Machines.........................................21

Abstract.................................................................................................21

1. Introduction..........................................................................................21

2. Classification of high-speed EMs.....................................................22

3. Application areas of high-speed electrical machines and a review

of known works..................................................................................27

4. Efficiency of high-speed electrical machines.................................32

5. Conclusion............................................................................................57

Chapter 3 Nanofluid with Colloidal Magnetic Fe3O4 Nanoparticles

and Its Applications in Electrical Engineering.................................61

Abstract.................................................................................................61

1. Introduction..........................................................................................62

2. The synthesis and complex characterization of nanofluid with

colloidal magnetic Fe3O4 nanoparticles...........................................63

3. Heat transfer and electromagnetic field by numerical simulation

for the electrical transformer cooled by a specific nanofluid....79

4. Designing the electrical transformer cooled by nanofluid

with colloidal magnetic Fe3O4 nanoparticles dispersed in UTR 40

transformer oil.....................................................................................86

5. Nanofluid with colloidal magnetic Fe3O4 nanoparticles used in

microactuation process.......................................................................91

Acknowledgements.............................................................................92

Nomenclature.......................................................................................92

Chapter 4 The MatLabTM Software Application for Electrical Engineering

Simulations and Power System...........................................................103

1. Introduction........................................................................................103

2. Trapezoidal integration....................................................................106

3. Modeling cascada of π circuits......................................................107

4. Line representation with parameters of frequency

dependent ..........................................................................................109

5. Other numeric methods .................................................................114

6. Model implementation of single phase line................................117

7. Transmission line with corona effect ...........................................120

8. Testing the model..............................................................................123

9. Simulation analysis of transmission lines with single phase

representation.....................................................................................124

10. Conclusions .......................................................................................135

Chapter 5 Application of Fuzzy Logic in Control of Electrical Machines.... 138

1. Introduction .....................................................................................138

2. Fuzzy logic control ..........................................................................140

3. Description of machine drive ........................................................151

4. Simulation results ............................................................................153

5. Conclusion .........................................................................................159

Chapter 6 Bioethanol-Fuelled Solid Oxide Fuel Cell System for Electrical

Power Generation...................................................................................162

1. Introduction ......................................................................................162

2. Bioethanol ..........................................................................................164

3. Solid oxide fuel cell system fuelled by bioethanol ...................168

4. Process modification for improving performance of the SOFC

system ...............................................................................................174

5. Conclusions .....................................................................................184

6. Acknowledgement ..........................................................................185

Chapter 7 Application of the Genetic Algorithms for Identifying the Electrical

Parameters of PV Solar Generators....................................................190

1. Introduction........................................................................................190

2. The one diode model.......................................................................191

3. Classical optimization algorithms ................................................193

4. Application of the genetic algorithms..........................................198

5. Conclusion..........................................................................................207

Chapter 8 Numerical Inverse Laplace Transforms for Electrical Engineering

Simulation.................................................................................................210

1. Introduction........................................................................................210

2. Multidimensional numerical inverse Laplace transform .........211

3. Application of NILT algorithms to electrical engineering

simulation ..........................................................................................223

4. Conclusion .........................................................................................235

5. Acknowledgment .............................................................................236

Citation......................................................................................................241

Index...........................................................................................................243

About Author

Liza Hurd received her Ph.D. in Electrical Power Engineering from Public University of Science & Engineering, Haifa. She serves as a Visiting Professor at Community College, Catalonia. She has conducted works on electrical power distribution. She consistently shares her knowledge with the students’ fraternity by organizing lectures and conferences for students around the globe. Hurd has been awarded the “Dean’s Award for Distinguished Teaching” for her excellence in education. She is on the editorial board of several renowned physics and electrical engineering journals; and has edited over 140 technical papers and eight reference books.