1st Edition

# Power Transmission System Analysis Against Faults and Attacks

240 Pages 88 B/W Illustrations
by CRC Press

240 Pages 88 B/W Illustrations
by CRC Press

240 Pages 88 B/W Illustrations
by CRC Press

Also available as eBook on:

The present-day power grid is basically a complex power transmission network with risks of failure due to unplanned attacks and contingencies, and therefore, assessment of vulnerability of transmission network is important and the process is based on contingency approach. This book deals with the methods of assessment of the grid network vulnerability and addresses the grid collapse problem due to cascaded failures of the transmission network following an attack or an unplanned contingency. Basic mitigation aspects for the network has been explored and the immunity of such a power transmission network against vulnerable collapse has been described using mathematical models.

1 Introduction

1.1 Background and Motivation

1.2 Growth of modern large-scale power systems

1.3 Complexity in power systems

1.4 Transmission System Faults

1.5 Conventional contingencies in power transmission network

1.6 Threats and the consequence in power system operation

1.7 Modelling of power transmission network as complex network

1.8 Structural property analysis of power transmission network

1.9 Complex network approach to vulnerability assessment of power transmission network

2 Traditional approach in analysis of faults in power system

2.1 Introduction

2.2 Symmetrical Components

2.3 Formation of Ybus matrix

2.4 Bus impedance matrix [Zbus]

2.5 Determination of Symmetrical Fault current using [Zbus] inversion

2.6 Generalise Fault Analysis using [Zbus]

2.7 Determination of line current during fault condition

2.8 Open conductor faults

3 Contingency Analysis

3.1 Introduction

3.2 [Zbus] building algorithm

3.3 Addition and removal of line

3.4 Single line contingency

3.5 Multiple line contingency

3.6 Contingency analysis of intertie

[Worked out examples]

4 Fundamental concepts of Complex Network Theory

4.1 Introduction

4.2 Pure Topological Approach

4.3 Extended Topological Approach

5 Vulnerability Assessment of Power Transmission Network

5.1 Introduction

5.2 Vulnerability Indices: Tools of Vulnerability Assessment

5.3 Aspects of Vulnerability Analysis of Power Transmission Network

5.4 Simulation for Vulnerability Indices in Power Transmission Network

6 Analysis of Cascading Failure and Islanding in Grid Network

6.1 Introduction

6.2 Concept of Islanding

6.3 Modelling of Cascading Failure and Islanding

6.4 Application of Concept of Preferential Probability in modelling of Cascading Failures

6.5 Simulation

7 Assessment of Resilience in Power Transmission Network

7.1 Introduction

7.2 Concepts of Resiliency, Robustness, Reliability and Stability

7.3 Relationship between Resiliency and Percolation Threshold

7.4 Power transmission system behaviour at Percolation Threshold

7.5 Assessment of Resiliency for Transmission Network

7.6 Simulation

8 Effect of Distributed Energy Sources

8.1 Introductionă€€

8.2 Role of Distributed Energy Sources in Power Transmission Networks

8.3 Mitigation Strategy employing Distributed Energy Sourcesă€€

Reference and Bibliography

Appendix

Index

### Biography

Tamalika Chowdhury Ph.D (Engg.) is an Assistant Professor in Jain College of Engineering, Belagavi. She has been a research scholar in the Department of Electrical Engineering, Indian Institute of Engineering Science & Technology (IIEST), Shibpur (Formerly BE College Shibpur) Howrah, West Bengal, India. She has pursued Ph.D program under UGC-BSR Fellowship. She received her B.Tech and M.Tech degree in Electrical Engineering from West Bengal University of Technology (WBUT). Her research area includes Power Grid, Power system vulnerability, Manifestation of Renewable Energy based Distributed Generation in power system, Assessment of power grid resilience using Complex Network Theory.

Abhijit Chakrabarti, Ph.D. (Tech) is Professor of Electrical Engineering in Indian Institute of Engineering Science and Technology, Shibpur. He is the former Head of the Department, Electrical Engineering, IIEST Shibpur and former Vice- Chancellor of Jadavpur University. He is also the former Vice Chairman of West Bengal State Council of Higher Education, Government of West Bengal. He has published 132 research papers in peer reviewed international and national journals as well as in conferences. He has authored 17 books in electrical engineering. He is a member of EEAC of National Board of Accreditation, Government of India as well as visiting member of IET, UK in accreditation process of ADAMS, UK. He has visited foreign countries like Japan, USA and UK. He is a fellow of the Institution of Engineers, India and member of IET, UK. Professor Chakrabarti received many awards and medals for is research in the field of power system engineering. He is member of different boards and committees in universities in India and expert member in numerous technical and standing committees. He has active interest in research related to Power System Engineering, Electrical Machines, Power Electronics and Electric Circuits.

C.K. Chanda is working as a Professor in the Department of Electrical Engineering, IIEST, Shibpur, India. He has earned Ph.D. degree from the Department of Electrical Engineering, B.E. College (DU), Shibpur, India with specialization in Power Systems. Dr. C. K. Chanda has over 31 years of teaching and research experience in the diverse field of Power Systems Engineering and almost 5 yearsâ€™ experience in industry. His areas of interest include Smart Grid, Resiliency, Stability and Renewable Energy etc. He is a recipient of Tata Rao Gold Medal. He is actively involved in various research projects funded by Centrally Funded Organizations like DST, UGC. He has published 150 research articles in reputed National/International journals and conferences including 45 research papers in SCI /SCOPUS -indexed journals. He is a member of the Editorial Board and Guest Editor of numerous reputed Journals. He has authored and co-authored four (4) books in reputed publishing houses like Mc Graw Hill, PHI etc. He has contributed five (5) book chapters in International Proceedings. Ten (10) research scholars have got their Ph. D. degree under the supervision of Dr. Chanda. He has visited different foreign countries including USA, UK, Australia, Japan, and China for academic purposes. He is a senior member of IEEE(USA), member of IET(UK), Fellow of Institution of Engineers (I), C-Engineering(I) and Life-member of ISTE.