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The massive integration of distributed generation (DG) can cause voltage disturbances at the connection points. In order to maximize the penetration of DG power, the actual topology of distribution grids should change introducing active devices to control the voltage, especially in weak networks. In this paper it is analyzed the integration of DG in a weak network connected to a MV/LV substation, using different active devices connected to this substation. The studied active devices are: OLTCs, STATCOM with energy storage and dump-loads. The contribution of these active devices to increase the installed DG power in weak networks is analyzed. An operation and control strategy for the active substation is presented and the performance of this active substation is verified by temporal power flow simulations.
PowerTech, 2009 IEEE Bucharest
Date of Conference: June 28 2009-July 2 2009