Increasing integration of renewables, in particular solar PV integration along with the electrification and decarbonisation challenges the existing grid infrastructures due to their intermittent characteristics with high levels of uncertainty and complexity. Several impacts on the grid operation include voltage variations, frequency variation, voltage unbalance, stability, protection and challenges for managing… Theses impacts are even more complicated for islanded or weak grid areas. A better knowledge, analysis and evaluation methods of the induced constraints become necessary in order to determine the hosting capacity, to assess impacts of renewable generation on distribution network and to assess technical and economic opportunities provided by renewable generation. This keynote presents experiences of CEA-INES for analysing impacts provided by PV integration into grid, solutions by intelligent control and energy management in order to reduce these impacts, to maximize the ancillary services contributed by PV installations and to maintain the grid stability are discussed, solutions associated with energy storage and development of micro-grid technologies will be presented to address mentioned grid challenges.

Prof. Quoc Tuan TRAN received his Ph.D. degree in Electrical Engineering and his “Habilitation à Diriger des Recherches” degree (Dr. Habil.) from the Grenoble Institute of Technology (Grenoble INP), France, in 1993 and 2000, respectively. He is actually Professor at the INSTN (National Institute for Nuclear Science and Technology/Paris-Saclay University), Director of Research and International Expert at the CEA (French Alternative Energies and Atomic Energy Commission), Scientific Manager for smart grid at the CEA-Liten/INES (French National Institute for Solar Energy) and Teacher at the INSTN and the Grenoble Institute of Technology, the Grenoble Alpes University (UGA) and the ENSTA (Paris Polytechnic Institute). 
His research interests are in the fields of smart-grid, microgrid, power system analysis, operations and protection, electromagnetic transients, real time and co-simulation, renewable energy (solar energy & wind energy), electric vehicle, energy storage, smart building, energy management and control. He has realized and piloted more than 50 projects such as European, industrial, Ademe, ANR projects... He holds 10 patents, is (co)author of seven books, and he has published more than 250 publications in journals and conference proceedings. He has supervised 50 PhD thesis. He is a IEEE senior member and CIGRE member.