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Planning of Distribution Networks Islanded Operation: From Simulation to Live Demonstration

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The integration of distributed Battery Energy Storage Systems (BESS) at the Medium Voltage (MV) and Low Voltage (LV) networks increases the distribution grid flexibility to deal with high penetration of Renewable Energy Sources (RES). In addition, it also enables the deployment of key self-healing functionalities, which allow the islanded operation of small sections of the distribution network. However, new planning and real-time operation strategies are required to allow the BESS coordinated control, as well as a cost-effective and stable operation. This paper presents new tools developed for the planning and real-time operation of distribution networks integrating BESS, particularly when operating islanding. For real-time operation, a short-term emergency operation-planning tool assesses the feasibility of islanded operation of a small section of the distribution network. The long-term impact of a BESS control strategy for islanded operation is assessed through a Life Cycle Analysis (LCA) tool. The results and implementation experience in real distribution network are also discussed.

Author(s):

José Gouveia    
INESC TEC
Portugal

Clara Gouveia    
INESC TEC
Portugal

Justino Rodrigues    
INESC TEC
Portugal

Leonel Carvalho    
INESC TEC
Portugal

Carlos Moreira    
INESC TEC and FEUP
Portugal

João Peças Lopes    
INESC TEC and FEUP
Portugal

 

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