Stability of electrical distribution grids in the presence of renewable energies by Arshpreet Singh-THÈSE Pour obtenir le grade de DOCTEUR DE L’UNIVERSITÉ GRENOBLE ALPES

 Stability of electrical distribution grids in the presence of renewable energies by Arshpreet Singh-THÈSE Pour obtenir le grade de DOCTEUR DE L’UNIVERSITÉ GRENOBLE ALPES

 Abstract —Aiming to reach carbon neutrality by 2050, France is committed to integrating more renewable energy into the grid. In the meantime, Enedis, the French distribution system operator, expects up to ten times more wind and solar power connected to the distribution grid. This perspective is raising concerns about the stable operation of future distribution networks, especially with respect to interactions between inverter-based resources. Hence, this thesis provided a study of slow-interaction converter-driven stability in medium-voltage distribution grids with inverter-based resources, assessing the impact of both grid-following and grid-forming operation modes. Our main objective was to develop a methodology for distribution-system operators to analyze and prevent these instabilities, for which we employ electromagnetic transient models and small-signal stability analysis. After investigating the nature of these instabilities and identifying key control parameters, a solution was provided in the form of an optimization problem to determine the ranges of these parameters. A heuristic method was also proposed as a computationally-efficient alternative to solve this optimization

Read full article: https://theses.hal.science/tel-04446002v1