8th International Conference on Advanced Power System Automation and Protection (APAP2019)

Abstract—For an active distribution network (ADN) with multiple photovoltaics (PV), the fault current characteristics are investigated with the following three contributions: (1) ADN topologies with multiple PVs in specialized line grid-integration and non specialized line grid-integration are established; (2) The fault current characteristics are analyzed under various fault locations and various penetration degree of PVs. Then the advantages and disadvantages of different PV interconnected methods is analyzed; (3) An ADN with multiple PVs is established on the time domain simulation environment PSCAD/EMTDC to verify the fault current characteristics. Comparative studies of the fault current characteristics are conducted between ADN with PVs grid-integration forms. Simulation results justify the correctness of theoretical analysis and attain the optimal PV interconnection method. Index Terms—Multi PV network, distribution network, specialized line/non specialized line grid-integration, fault locations, fault current characteristics.

specialized line/non specialized line grid-integration,fault locations,fault current characteristics,Multi PV network,distribution network