Research on high permeability photovoltaic access distribution network architecture and protection configuration

For photovoltaic (PV) high permeability access distribution network, this paper mainly studies the typical architecture in PV power distribution network with high permeability, generation characteristics modeling, fault mechanism, fault characteristics and its protection configuration analysis. PV access 380V distribution network cable access mode, modeling of PV power generation characteristics, analysis of distribution network bus line fault mechanism, fault characteristics are analyzed. The protection method of PV distribution network with high permeability is studied, and the protection configuration scheme is proposed. Finally, Finally, the simulation is built in MATLAB to prove the protection configuration method.