Meet the editors

Ahmed Faheem Zobaa received his BSc (Hons), MSc, and Ph.D. in Electrical Power and Machines from Cairo University, Egypt, in 1992, 1997, and 2002, respectively. He received his Postgraduate Certificate in Academic Practice from the University of Exeter, UK, in 2010, and his DSc from Brunel University London, UK, in 2017. He was an instructor from 1992 to 1997, a teaching assistant from 1997to 2002, and an assistant Professor

from 2002–2007 at Cairo University, Egypt. From 2007 to 2010, he was a senior lecturer in renewable energy at the University of Exeter. From 2010 to 2019, he was a senior lecturer in power systems at Brunel University London, where he is currently a reader in electrical and power engineering. His main areas of expertise include power quality, (marine) renewable energy, smart grids, energy efficiency, and lighting applications. Dr. Zobaa is an executive editor for the International Journal of Renewable Energy Technology, an executive editor-in-chief for Technology and Economics of Smart Grids and Sustainable Energy, and editor-in-chief for the International Journal of Electrical Engineering Education. He is also an editorial board member, editor, associate editor, and editorial advisory board member for many international journals. He is a registered Chartered Engineer, Chartered Energy Engineer, European Engineer, and International Professional Engineer. He is also a registered member of the Engineering Council, UK; the Egypt Syndicate of Engineers; and the Egyptian Society of Engineers. He is a senior fellow of the Higher Education Academy and a fellow of the Institution of Engineering and Technology, Energy Institute, Chartered Institution of Building Services Engineers, Institution of Mechanical Engineers, the Royal Society of Arts, the African Academy of Sciences, and Chartered Institute of Educational Assessors, all in the United Kingdom. He is a senior member of the IEEE, and a member of the International Solar Energy Society, the European Power Electronics and Drives Association, and IEEE Standards Association.

Shady H. E. Abdel Aleem (M'12, SM'21) received a BSc, MSc, and Ph.D. in Electrical Power and Machines from the Faculty of Engineering, Helwan University, Egypt, in 2002, and the Faculty of Engineering, Cairo University, Egypt, in 2010 and 2013, respectively. From September 2018 to September 2019 was an associate professor at the 15th May Higher Institute of Engineering and the quality assurance unit director. Since September 2019,

he has been an adjunct associate professor in the Arab Academy for Science, Technology & Maritime Transport, College of Engineering and Technology, Smart Village Campus, where he teaches power quality energy efficiency, wind energy, and energy conversion courses. In addition, he is a consultant in power quality studies at ETA Electric Company, Egypt. His research interests include harmonic problems in power systems, power quality, renewable energy, smart grids, energy efficiency, optimization, green energy, and economics. Dr. Shady is the author or co-author of many refereed journals and conference papers. He has published more than 120 journal and conference papers, eighteen book chapters, and seven edited books with various publishers. He was awarded the State Encouragement Award in Engineering

Sciences in 2017 from Egypt. He was also awarded the medal of distinction from the first class of the Egyptian State Award in 2020. Dr. Shady is a senior member of the Institute of Electrical and Electronics Engineers (IEEE) and the Institution of Engineering and Technology (IET). He is an editor/associate editor for the International Journal of Renewable Energy Technology, Vehicle Dynamics, IET Journal of Engineering, Technology and Economics of Smart Grids and Sustainable Energy, and International Journal of Electrical Engineering Education.

Contents

Perspectives and Applications

*by Sergey Gandzha and Dmitry Gandzha*

*by Daniel Matt and Nadhem Boubaker*

and Synthesis

*by Shahin Hedayati Kia*

Methods and Solutions

Reluctance Motor *by Susitra Dhanarajalu*

**Preface XI**

**Chapter 1 1**

**Chapter 2 7**

**Chapter 3 35**

**Chapter 4 47**

**Chapter 5 69**

**Chapter 6 89**

Introductory Chapter: Emerging Electric Machines - Advances,

*by Ahmed F. Zobaa, Shady H.E. Abdel Aleem and Ahmed M. Zobaa*

Brushless Electric Machines with Axial Magnetic Flux: Analysis

Detection of Stator and Rotor Asymmetries Faults in Wound Rotor Induction Machines: Modeling, Test and Real-Time Implementation

Prospects for Increasing the Dynamic Efficiency of Asynchronous Double-Feed Machines and Wind Power Generators Using Structural

*by Vladimir L. Kodkin, Alexandr S. Anikin and Alexandr A. Baldenkov*

Very Low Voltage and High Efficiency Motorisation for Electric Vehicles

MNLR and ANFIS Based Inductance Profile Estimation for Switched

## Contents


Preface

Currently, electrical machinery is attracting more attention for the development of competitive energy conversion systems with advanced topologies and innovative drives to realize the increasing advantages of current industrial needs. Modern competitive electrical machines must cope with a broad range of applications such as industrial applications, power generation, renewable energy generation, conversion, and domestic home appliance usage, in addition to the new high-performance embedded applications (electric vehicles, aerospace, aircraft machines, robotics, and others). Performance metrics and key differentiators such as small volume, low-high speed operation, high efficiency and torque, good voltage and flux regulations, robustness, flexibility, long lifetime, controllability, good fault-tolerant operating capability are a need for higher competitive electrical machines in the modern renewable energy era. This book is planned to be essentially an introduction to the concepts and developments of emerging electric machines - advances, perspectives,

and applications. The book is organized into six chapters as follows:

Chapter 2 analyzes electric machines with axial magnetic flux and the effect of commutation on the electromagnetic moment and electromagnetic power. The chapter considers two types of discrete switching are considered. The analysis is performed for an arbitrary number of phases. The first type of switching involves disabling one phase for the duration of switching. The second type of switching consists of the operation of all phases in the switching interval. Also investigated is the influence of the pole arc and the number of phases on the electromagnetic moment and electromagnetic power. Finally, a conclusion is made about the

Chapter 3 examines the detection of faults in stator and rotor asymmetries in wound-rotor induction machines using rotor and stator currents signatures analysis. This method was proposed for experiments in fault diagnosis in engineering courses on electrical machines . The aim is to demonstrate the main steps of developing

Chapter 4 presents the problems of control of asynchronous machines with dual power supply; as a nonlinear structure, the transfer functions depend on the frequency of the stator voltage and the relative slip. This is especially important for wind turbines that need to remain efficient at different speeds. The chapter presents experiments, modeling, and industrial application of control algorithms with

Chapter 5 presents a new, innovative solid bar winding design for electrical machines (either motors or generators) dedicated to electric propulsion. This new winding technique aims to enhance the performance by utilizing the stator slot, increasing the copper fill factor to greater than 75 percent, and reducing the inactive copper at the end-windings. The suggested winding technique hopes to address

real-time condition monitoring for wound-rotor induction machines.

positive torque coupling to justify the theoretical findings.

Chapter 1 presents an introduction to the book.

advantages of the second type of switching.

these challenges.
