Restoration of an Active MV Distribution Grid with a Battery ESS: A Real Case Study

Matteo Manganelli, Mario Nicodemo, Luigi D’Orazio, Laura Pimpinella and Maria Carmen Falvo
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Matteo Manganelli: Department of Astronautical, Electrical and Energy Engineering, Sapienza University of Rome, Rome 00184, Italy
Mario Nicodemo: Department of Astronautical, Electrical and Energy Engineering, Sapienza University of Rome, Rome 00184, Italy
Luigi D’Orazio: e-distribuzione, Rome 00198, Italy
Laura Pimpinella: e-distribuzione, Rome 00198, Italy
Maria Carmen Falvo: Department of Astronautical, Electrical and Energy Engineering, Sapienza University of Rome, Rome 00184, Italy

Sustainability, 2018, vol. 10, issue 6, 1-17

Abstract: In order to improve power system operation, Battery Energy Storage Systems (BESSs) have been installed in high voltage/medium voltage stations by Distribution System Operators (DSOs) around the world. Support for restoration of MV distribution networks after a blackout or HV interruption is among the possible new functionalities of BESSs. With the aim to improve quality of service, the present paper investigates whether a BESS, installed in the HV/MV substation, can improve the restoration process indicators of a distribution grid. As a case study, an actual active distribution network of e-distribuzione , the main Italian DSO, has been explored. The existing network is located in central Italy. It supplies two municipalities of approximately 10,000 inhabitants and includes renewable generation plants. Several configurations are considered, based on: the state of the grid at blackout time; the BESS state of charge; and the involvement of Dispersed Generation (DG) in the restoration process. Three restoration plans (RPs) have been defined, involving the BESS alone, or in coordination with DG. A MATLAB ® /Simulink ® program has been designed to simulate the restoration process in each configuration and restoration plan. The results show that the BESS improves restoration process quality indicators in different simulated configurations, allowing the operation in controlled island mode of parts of distribution grids, during interruptions or blackout conditions. The defined restoration plans set the priority and the sequence of controlled island operations of parts of the grid to ensure a safe and better restoration. In conclusion, the results demonstrate that a BESS can be a valuable element towards an improved restoration procedure.

Keywords: battery energy storage system; black start; dispersed generation; medium voltage distribution grid; smart grid (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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