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New Operational Challenges in Electrical Distribution Network Management in Presence of Storage Systems

pubblicazioni - Memoria

New Operational Challenges in Electrical Distribution Network Management in Presence of Storage Systems

Il contributo descrive la metodologia sviluppata per la gestione ottimale, rispettando diversi obiettivi (riduzione delle perdite, ecc.), di plurimi punti di connessione per un ESS all’interno di rete elettrica di media tensione e l’interazione tra sistema e operatore umano.

The wide spread of Distributed Energy Resources (DERs) in Electricity Distribution Networks (DNs) may affect security and quality levels of the energy supply. To overcome these issues, the Distribution System Operators (DSOs) have to adopt control solutions which make the network management more complex than today’s one. Meanwhile, DSOs are considering Energy Storage Systems (ESSs) as useful support, testing them all over Europe. In 2010 the Italian National Regulatory Authority sustained a set of pilot projects in order to deep examine the advantages in terms of network flexibility that ESSs’ employment could fulfil.

In literature it is defined a methodology, currently adopted in real field by an Italian DSO, that provides an optimal management, respecting different goals (reduction on losses, etc.), of multiple connection points for an ESS in a Medium Voltage (MV) grid. A rank of best solutions is then proposed to the agent at the operation centre. In this case the worker has a new responsibility; it consists in applying the definitive choice that mixes the best theoretical technical-economic answer with its practical knowledge and skills. In this paper the optimization methodology and the interaction between system and human operator are explained.

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