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Smart Grid: Technology and Applications

ISBN: 978-0-470-97409-4
306 pages
April 2012
Smart Grid: Technology and Applications (0470974095) cover image

Electric power systems worldwide face radical transformation with the need to decarbonise electricity supply, replace ageing assets and harness new information and communication technologies (ICT). The Smart Grid uses advanced ICT to control next generation power systems reliably and efficiently. This authoritative guide demonstrates the importance of the Smart Grid and shows how ICT will extend beyond transmission voltages to distribution networks and customer-level operation through Smart Meters and Smart Homes.

Smart Grid Technology and Applications:

  • Clearly unravels the evolving Smart Grid concept with extensive illustrations and practical examples.
  • Describes the spectrum of key enabling technologies required for the realisation of the Smart Grid with worked examples to illustrate the applications.
  • Enables readers to engage with the immediate development of the power system and take part in the debate over the future Smart Grid.
  • Introduces the constituent topics from first principles, assuming only a basic knowledge of mathematics, circuits and power systems.
  • Brings together the expertise of a highly experienced and international author team from the UK, Sri Lanka, China and Japan.

Electrical, electronics and computer engineering researchers, practitioners and consultants working in inter-disciplinary Smart Grid RD&D will significantly enhance their knowledge through this reference. The tutorial style will greatly benefit final year undergraduate and master’s students as the curriculum increasing focuses on the breadth of technologies that contribute to Smart Grid realisation.

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About the authors xi

Preface xiii

Acknowledgements xv

List of abbreviations xvii

1 The Smart Grid 1

1.1 Introduction 1

1.2 Why implement the Smart Grid now? 2

1.3 What is the Smart Grid? 6

1.4 Early Smart Grid initiatives 7

1.5 Overview of the technologies required for the Smart Grid 12

References 14

Part I INFORMATION AND COMMUNICATION TECHNOLOGIES

2 Data communication 19

2.1 Introduction 19

2.2 Dedicated and shared communication channels 19

2.3 Switching techniques 23

2.4 Communication channels 25

2.5 Layered architecture and protocols 35

References 43

3 Communication technologies for the Smart Grid 45

3.1 Introduction 45

3.2 Communication technologies 46

3.3 Standards for information exchange 62

References 66

4 Information security for the Smart Grid 69

4.1 Introduction 69

4.2 Encryption and decryption 70

4.3 Authentication 76

4.4 Digital signatures 77

4.5 Cyber security standards 79

References 80

Part II SENSING, MEASUREMENT, CONTROL AND AUTOMATION TECHNOLOGIES

5 Smart metering and demand-side integration 83

5.1 Introduction 83

5.2 Smart metering 84

5.3 Smart meters: An overview of the hardware used 86

5.4 Communications infrastructure and protocols for smart metering 96

5.5 Demand-side integration 99

References 111

6 Distribution automation equipment 113

6.1 Introduction 113

6.2 Substation automation equipment 114

6.3 Faults in the distribution system 125

6.4 Voltage regulation 135

References 139

7 Distribution management systems 141

7.1 Introduction 141

7.2 Data sources and associated external systems 142

7.3 Modelling and analysis tools 144

7.4 Applications 165

References 171

8 Transmission system operation 173

8.1 Introduction 173

8.2 Data sources 173

8.3 Energy management systems 177

8.4 Wide area applications 179

8.5 Visualisation techniques 183

References 186

Part III POWER ELECTRONICS AND ENERGY STORAGE

9 Power electronic converters 189

9.1 Introduction 189

9.2 Current source converters 191

9.3 Voltage source converters 195

References 203

10 Power electronics in the Smart Grid 205

10.1 Introduction 205

10.2 Renewable energy generation 206

10.3 Fault current limiting 213

10.4 Shunt compensation 217

10.5 Series compensation 228

References 231

11 Power electronics for bulk power flows 233

11.1 Introduction 233

11.2 FACTS 234

11.3 HVDC 248

References 257

12 Energy storage 259

12.1 Introduction 259

12.2 Energy storage technologies 263

12.3 Case study 1: Energy storage for wind power 271

12.4 Case study 2: Agent-based control of electrical vehicle battery charging 273

References 277

Index 279

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Professor Janaka Ekanayake, Cardiff University, UK
Professor Ekanayake is currently at the Institute of Energy at Cardiff University. As module leader on an MSc course, he teaches intelligent electronic devices, their applications and automation. He also teaches power electronic applications to power systems, flexible ac transmission systems and HVDC.Previous to this he was a Research Fellow at the University of Manchester. He was promoted to Professor in Electrical and Electronic Engineering at the University of Peradeniya, Sri Lanka in 2003. Professor Ekanayake has published over 25 papers in refereed journals and has co-authored three books in the area of wind integration.

Dr Kithsiri Liyanage, University of Peradeniya, Sri Lanka
Dr Liyanage is Senior Lecturer in the Department of Electrical and Electronic Engineering, University of Peradeniya. Prior to this he served as Dean of the Faculty of Engineering, University of Ruhuna and as Director of the Information Technology Centre, University of Peradenyia. He has been with the University of Tokyo as a Visiting Research Fellow since 2008.  He has served as coordinator of and consultant to several ICT and power generation projects.

Dr Jianzhong Wu, Cardiff University, UK
Dr Wu is a lecturer at the Institute of Energy, School of Engineering, Cardiff University. Privious to this he was a research fellow at the University of Manchester and Associate Professor at Tianjin University, China. He has been involved in several Chinese national research programmes, developing advanced software tools for distribution network operation, planning, for on-line security monitoring, assessment and optimisation for transmission networks.

Professor Akihiko Yokoyama, University of Tokyo, Japan
Professor Yokoyama is based at the Department of Engineering at the University of Tokyo. He is alsoProfessor in the Department of Advanced Energy at the Graduate School of Frontier Sciences He has co-authored two books, and is Chairman of PES Council of IEEE Japan. He is Vice Chair- man of the Japanese National Committee of CIGRE, and Vice President of Central Research Institute of Electric Power Industry of Japan.

Professor Nicholas Jenkins, Cardiff University, UK
Professor Jenkins moved to Cardiff University in 2008 after ten years as a professor at the University of Manchester. He has contributed to ten books and is a Fellow of the IET, IEEE and the Royal Academy of Engineering. He was a member of Advisory Council of the CEU SmartGrid Technology Platform. Professor Jenkins is presently the Shimizu Visiting Professor at Stanford University.

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