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Control and management strategies of smart grids with high penetration of renewable energy

Abstract : In 2007 with the renewable energy directive, the European Union established the development of a low-carbon economy. This directive aims to decrease greenhouse gas emissions by increasing the energy produced by renewable energy. Already today, the massive diffusion of renewable systems is tangible in the European electricity mix. However, in spite of their potential benefits, their large-scale integration leads to new technical and regulatory questions. Consequently, new management strategies need to be developed and applied in order to ensure a reliable and economical operation of the system. Microgrids are considered to be one of the most effective and flexible solutions able to meet these new needs.The main goals of this thesis are the conceptualization, development and implementation of different management strategies for microgrids. The algorithms developed aim to facilitate the massive integration of renewables and at the same time lead to an effective and economic operation of the systems. A new architecture of distribution grids based on cluster of microgrids was proposed. Each microgrid is composed of a number of renewable-based and conventional generation systems, storage systems and consumption. An optimal and distributed energy management strategy was then defined and developed. This strategy allows to manage the short-term energy management and real-time control of microgrids by using the connected sources in a smart and cost-efficient way. A multi-agent system and the mixed integer linear optimization technique were used for the implementation of this strategy.From a global point of view, each microgrid is seen as a coherent entity, which can support network operation by using its flexible and aggregated sources. Hence, the second part of this thesis aims to understand how distribution grids can exploit these cluster of microgrids and their properties. Different mechanisms for the active management of distribution grids are conceptualized from the technical and economical point of view. A new strategy based on hierarchical management of different smart levels allow to reduce the complexity of the system and to implement a more flexible and extensible system, thanks to a more local use of model knowledge and users behaviour. On the end, the theoretical work were tested on an experimental test-bed in order to show the effectiveness of the proposed theories.
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Submitted on : Monday, February 19, 2018 - 10:58:05 AM
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  • HAL Id : tel-01712034, version 1

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Elvira Amicarelli. Control and management strategies of smart grids with high penetration of renewable energy. Electric power. Université Grenoble Alpes, 2017. English. ⟨NNT : 2017GREAT056⟩. ⟨tel-01712034⟩

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