Towards a framework for modelling market-based congestion management in distribution grids

Abstract

Congestion management using dedicated congestion management (CM) markets could extend the grid operators CM toolbox and can be one way to unlock small-scale flexibility potentials. The presented framework allows to study the effects of operational CM markets and simulates the operational planning of small-scale flexibility providers that are marketed by aggregators as well as the grid operation planning of grid operators under consideration of CM markets. Based on the optimized schedules of flexibility providers, the grid operators perform grid analyses and determine current-based congestions. These congestions are then relieved by determining optimal countermeasures using flexibility from the local CM market as well as the intraday market. The application of the presented framework shows its effectiveness in relieving congestions as well as a varying flexibility usage depending on the grid structure.