Construction of Multi-period TSO-DSO Flexibility Regions

TL;DR

This paper introduces a novel non-iterative mathematical framework for accurately calculating multi-period flexibility regions of active distribution networks, enhancing TSO/DSO coordination and real-time deployment.

Contribution

It presents a new robust methodology for constructing multi-period flexibility regions in ADNs, addressing limitations of existing approaches.

Findings

The proposed method effectively captures multi-period flexibility boundaries.

Evaluation on IEEE test networks demonstrates improved accuracy.

Compared to existing methods, it offers a more robust and comprehensive analysis.

Abstract

Active distribution networks (ADN) have grown considerably in recent years. Distributed energy resources present in ADNs can provide flexibility to the power system through TSO/DSO coordination, i.e., at the interface node (feeder) between the transmission and distribution network. This paper addresses the issue of calculating multi-period flexibility regions of the ADNs. Flexibility regions are tightly dependent between periods and conditioned on the actual deployment of such flexibilities in real-time. The existing state-of-the-art has not provided a robust methodology for building multi-period flexible regions. We present a new mathematical framework based on a non-iterative formulation that considers the multi-period flexibility boundary points in a single optimization problem. The proposed methodology is evaluated on IEEE standard test networks and compared with the most widely used methods in the literature.