Ehsan Heydarian-Forushani is a Research Fellow to Aix-Marseille University, Marseille, France. His main research interests include power system flexibility, active distribution networks, renewables integration, demand response, smart grids, and electricity market. Hassan Haes Alhelou is currently with the Department of Electrical and Computer Systems Engineering, Monash University, Clayton, VIC 3800, Australia. His major research interests are Power systems, Power system dynamics, Power system operation, control, Dynamic state estimation, Frequency control, Smart grids, Micro-grids, Demand response, and Load shedding. Seifeddine Benelghali is an Associate Professor of Electrical Engineering at Aix-Marseille University, Marseille, France. His current research interests include smart grids; virtual power plant; demand response; machine learning; renewable energy integration; energy management systems; electric machines and drives.