Design and control of a PV active generator with integrated energy storages : application to the aggregation of producers and consumers In an urban micro smart grid

Abstract : The integration of PV power generation in a power system reduces fuel consumption and brings environmental benefits. However, the PV power intermittency and fluctuations deteriorate the power supply quality. A solution is proposed by adding energy storages, which are coordinated by a local controller that controls the power flow among all sources and implements an inner energy management. This PV based active generator can generate power references and can provide ancillary services in an electric network. Then micro grid concepts are derived to design a central energy management system of a residential network, which is powered by PV based active generators and a gas micro turbine. A communication network is used to exchange data and power references. An energy management system is developed with different time-scale functions to maximize the use of PV power. An operational daily planning is designed by a determinist algorithm, which uses 24 hour-ahead PV power prediction and load forecasting. Then power references are refreshed each half of an hour by considering the PV power availability and the states of energy storage units. Prediction errors and uncertainties are compensated by primary frequency controllers. Simulation and testing results validate the design of the PV active generator local controller and the central energy management system of the studied residential network
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Engineering Sciences [physics]. Ecole Centrale de Lille, 2010. English. <NNT : 2010ECLI0021>


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Di Lu. Design and control of a PV active generator with integrated energy storages : application to the aggregation of producers and consumers In an urban micro smart grid. Engineering Sciences [physics]. Ecole Centrale de Lille, 2010. English. <NNT : 2010ECLI0021>. <tel-00586393>

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