Estimation of Flexibility Potentials in Active Distribution Networks

The feasible operation region (FOR) allows capturing the aggregated flexibility potential of DER within radial distribution networks, while respecting the technical restrictions of both plants and grid.This thesis proposes a novel approach to compute the FOR, the Linear Flexibility Aggregation (LFA) method, based on the solution of a sequence of linear OPF.With the objective of reducing the computation time, without compromising the accuracy of the assessed FOR.It is shown that the proposed method provides a considerable reduction in processing time compared to similar methods, e.g.Monte-Carlo simulations or non-linear OPF-based methods.