CIRED Workshop - Ljubljana, 7-8 June 2018 Paper 0455 Paper No 0455 Page 1 / 4 LV NETWORK CONTROL ARCHITECTURE: H2020 INTEGRID CASE STUDY José COSTA Célia TROCATO Jorge MOREIRA EDP NEW R&D – Portugal EDP Distribuição – Portugal EDP Distribuição – Portugal David RUA André MADUREIRA David FONSECA INESC-TEC – Portugal INESC-TEC – Portugal EDP Distribuição – Portugal ABSTRACT Within the scope of H2020 program, InteGrid aims to demonstrate intelligent grid technologies for renewables integration and interactive consumer participation, enabling interoperable market solutions and interconnected stakeholders, while addressing the challenges derived from this goal from a technological, market and regulatory and societal perspective. The Portuguese demonstrator, which intends to innovatively boost the management of the distribution network using new DERs (including, here, consumers’ flexibility) with already-implemented assets, in a predictive and integrated way, fostering the implementation of cost-effective, replicable and scalable solutions, will be the place where the herein described function will be demonstrated. This paper presents the architecture of one of the above- mentioned solutions – the LV network control -, which, by merging both a predictive and real-time operational mode, will enable the DSO to exploit self and consumer- owned available flexibility resources in order to deploy a decision support tool to assist the active managing of the grid, avoiding technical problems. INTRODUCTION The way how electricity is being consumed and produced is extensively changing, as the role of different players in the energy sector is evolving, not only through innovative technology, but also through different energy use [1]. Envisioning to “bridge the gap between citizens, technology and other players of the energy system” [2], InteGrid aims to deliver new solutions that will, among other outcomes, enable the Distribution System Operator (DSO) to act as a market facilitator and data manager, through the development and implementation of tools that have the consumer in its core. This will facilitate the participation of consumers, via aggregators or new generation of retailers, to provide system services that contribute to a more efficient use of the electrical infrastructure. One of these services, which are exploited through different tools in the project, is the Low Voltage (LV) network control. It will establish predictive and real- time operation strategies, in a real demonstration environment, making use of flexibilities (internal – DSO assets – and external, i.e., the one that stems from residential clients), to ensure that the LV distribution grid is operated within the technical voltage limits. This is achieved through the multi-temporal planning of control actions that anticipate potential problems in the grid and define the necessary control set-points to support the grid operation. This tool will be demonstrated in Valverde, a village that is part of the district of Évora, in Portugal. This grid functionality is provided by the Control Actions Management Module (CAMM), which is a decentralised control tool and thus it will be embedded in the Distribution Transformer Controller (DTC) that is responsible for management of secondary substations [3]. Aiming to reinforce the concept of interoperability at different levels, the Smart Grid Architecture Model (SGAM) [4] was followed. This three-dimensional model provides a framework that allows the representation of Smart Grid (SG) architectures, in a technological neutral way, through five different layers, as presented in Figure 1. The business layer characterizes the business context on the information exchange, addressing economic and regulatory topics, policies, market and business models; the function describes the functions and services and their interrelations; the information represents the information that is being exchanged between functions, services and components, including information objects and canonical data models; the communication covers communication protocols for the interoperable and standardised exchange of information between components and the component includes power system equipment, protection and remote-control devices, network infrastructure and any type of computers. While the “Domains” are composed by the physical domains of the electrical supply chain, the “Zones” reflect the hierarchical levels of power system management. The ultimate objective of SGAM is to represent in which zones interactions between domains take place, through different layers: the interaction between hardware components (component layer) has underlying protocols (communication layer) that define the way information is exchanged and the respective data models (information layer). Functions or services cover a set of components (function layer), under certain business