This study examines the reactive power ancillary services of solar inverters which are connected to low voltage (LV) distribution networks by giving attention to the grid voltage support service and grid losses. Two typical reference LV distribution network models as suburban and farm are introduced from the literature in order to evaluate contribution of two static droop strategies cosφ(P) and Q(U) on the grid voltage. Photovoltaic (PV) hosting capacities of the suburban and farm networks are estimated and the most predominant limitations of connecting more solar inverters are emphasized for each network type. Regarding the overloading of MV/LV distribution transformers, overloading of lines and the grid overvoltage limitations, new local grid voltage support methods (cosφ(P,U) and Q(U,P)) are also proposed. Resulting maximum allowable penetration levels with different reactive power methods are presented by load flow simulation.
|Titel||26th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC 2011)|
|Forlag||ETA-Renewable Energies and WIP-Renewable Energies|
|Status||Udgivet - sep. 2011|
|Begivenhed||26th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC 2011) - Hamburg , Tyskland|
Varighed: 5 sep. 2011 → 6 sep. 2011
|Konference||26th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC 2011)|
|Periode||05/09/2011 → 06/09/2011|