**About the Editors**

**Hassan Haes Alhelou** (Senior Member, IEEE) is currently with University College Dublin, Dublin 4, Ireland. He has published more than 100 research papers in high-quality peer-reviewed journals and international conferences. He has participated in more than 15 industrial projects. His major research interests include power systems, power system dynamics, power system operation and control, dynamic state estimation, frequency control, smart grids, micro-grids, demand response, load shedding, and power system protection. Dr. Alhelou is included in the 2018 and 2019 Publons list of the top 1% Best Reviewer and Researchers in the field of engineering. He was a recipient of the Outstanding Reviewer Award from *Energy Conversion and Management* journal in 2016, *ISA Transactions* journal in 2018, *Applied Energy* journal in 2019, and many other Awards. He was a recipient of the Best Young Researcher in the Arab Student Forum Creative, among 61 researchers from 16 countries, at Alexandria University, Egypt, in 2011. He has also performed reviews for highly prestigious journals, including *IEEE Transactions on Power Systems*, *IEEE Transactions on Smart Grid*, *IEEE Transactions on Industrial Informatics*, *IEEE Transactions on Industrial Electronics*, *Energy Conversion and Management*, *Applied Energy*, and *International Journal of Electrical Power and Energy Systems*. He has participated in more than 15 industrial projects. His major research interests are power systems, power system dynamics, power system operation and control, dynamic state estimation, frequency control, smart grids, micro-grids, demand response, and load shedding.

**Pierluigi Siano** (M'09–SM'14) received an MS.c. degree in electronic engineering and a Ph.D. in information and electrical engineering from the University of Salerno, Salerno, Italy, in 2001 and 2006, respectively. He is a Professor and Scientific Director of the Smart Grids and Smart Cities Laboratory with the Department of Management and Innovation Systems, University of Salerno. His research activities are centered on demand response, on energy management, on the integration of distributed energy resources in smart grids, on electricity markets and on the planning and managemen<sup>t</sup> of power systems. In these research fields, he has co-authored more than 500 articles, including more than 300 international journal papers that received, in Scopus, more than 10,100 citations with an H-index equal to 49. In 2019 and 2020, he received the award of Highly Cited Researcher by ISI Web of Science Group. He has been the Chair of the IES TC on Smart Grids. He is an Editor for the Power and Energy Society Section of *IEEE Access*, *IEEE Transactions on Industrial Informatics*, *IEEE Transactions on Industrial Electronics*, the open journals of *IEEE IES*, *IET Smart Grid* and *IET Renewable Power Generation*.

#### *Editorial* **Special Issue on Advances and Technologies in High Voltage Power Systems Operation, Control, Protection, and Security**

**Hassan Haes Alhelou 1,\* and Pierluigi Siano 2,\***

