Power System Inertia, Strength, and RoCoF

This book highlights recent advancements in the area of power and energy systems. Electrical networks all around the world are experiencing the integration of various types of energy resources, including renewable energies with intermittent and variable generation and energy storage systems which are greatly replacing the existing fossil-fuel driven synchronous generators. These systems are forming the future of power generation and delivery systems. This radical change is significantly affecting the key assumption of the system in terms of their strength, inertia, and rate of change of frequency (RoCoF). These are extremely critical aspects when analyzing and strengthening the stability of the power systems with high penetration of renewable energies. There has been significant interest in this area over the past decade. Various methods have been proposed to measure the system's inertia, strength, and RoCoF. These parameters have been proposed to be used widely in designing, planning, and operating such systems, and they are currently a key area of interest for researchers and utilities around the world. The key emphasis of this book is on the various measurement and estimation techniques in renewable energy-dominated electrical power systems. Interesting topics such as networks' operation and technology accommodation are presented in detail from these perspectives. The chapters in this book introduce existing and new modelling approaches, control, and management methods.

Highlights recent advancements in the area of power and energy systems Presents various measurement and estimation techniques in renewable energy dominated electrical power systems Includes interesting topics such as networks' operation and technology accommodation

Autorentext

Professor Farhad Shahnia received his Ph.D. in electrical engineering from Queensland University of Technology (Australia) in 2011. Since 2015, he has been at the School of Engineering and Energy, Murdoch University, Perth, Australia. Prior to that, he was a lecturer at Curtin University (Australia, 2012-15), and a research fellow at Queensland University of Technology (Australia, 2011). He has published 8 books, 13 book chapters, and 200+ scholarly journal and conference articles.

Professor Yilu Liu received her Ph.D. in electrical engineering from Ohio State University, US, in 1989. She is the UT-ORNL Governor's chair professor of Electrical Engineering and Computer Science, and the deputy director of the Center for Ultra-Wide-Area Resilient Electric Energy Transmission Networks at the University of Tennessee. She was named an IEEE fellow in 2003 and elected to the National Academy of Engineering in 2016, and a member of the National Academy of Inventors in 2017. She has published 450+ technical reports and papers.

Professor Paolo Attilio Pegoraro has received his Ph.D. in electronic and telecommunication engineering from the University of Padova, Italy, in 2005. From 2015 to 2018, he was an assistant professor at University of Cagliari, Italy, where he is currently an associate professor. He has authored 8 book chapters and 200+ papers. He is an Associate Editor in Chief of the IEEE Transactions on Instrumentation and Measurement and the General Chair of the IEEE international workshop on applied measurements for power systems (AMPS).

Inhalt

Concepts definitions and importance of system inertia strength and RoCoF.- Traditional measurement methods of frequency and RoCoF.- Measurement and estimation of frequency and RoCoF in low inertia systems.- Impact of distortions harmonics and unbalance on measurements.- Various estimation methods of system inertia and strength.- Various calculation methods of center of inertia for renewable dominated power systems.- Impact of renewable dominated networks on system inertia and strength.