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pubblicazioni - Presentazione

Optimization models for the operation of medium-voltage AC networks

pubblicazioni - Presentazione

Optimization models for the operation of medium-voltage AC networks

La presentazione, frutto del lavoro congiunto con l’Università di Bergamo, mostra:
• il contesto dell’uso di algoritmi di ottimizzazione per reti elettriche di distribuzione;
• la modellizzazione matematica dell’OPF sviluppato in collaborazione con l’Università di Bergamo;
• le possibili applicazioni dell’algoritmo sia per il controllo in real time che per la pianificazione di reti di distribuzione.

A Distribution System Operator (DSO) will be in charge of operating power distribution networks, in order to compensate generation-load imbalances with respect to a previously determined scheduling, while guaranteeing constraints on currents in lines for security and voltages at nodes for power quality. Internal (i.e. owned by DSO) regulation resources will be electricity storage devices and on-load tap changers. DSO’s external regulation resources (i.e. owned by third parties) will be the dispatch of active and reactive power of generation plants and the exchange of active and reactive power with the high voltage transmission network.

Costs associated to the use of internal regulation resources reflect device deterioration; costs associated to the use of external regulation resources are to be defined by the Regulator, so as to allow a technically efficient operation of the network. The optimal redispatch minimizes the total costs for using internal and external resources, constrained by power flow equations, balance equation for the batteries and local control constraints.

Active losses are also considered and penalized in the objective function. The problem is modeled by using a non linear sparse formulation and solved using a primal-dual interior point method. The procedure allows finding efficient configurations of the network and can be used as a simulation tool by the Regulator to analyze the impact of different costs associated to external regulation resources.

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