Fault Characteristics Analysis of Grid-Connected Ship Power System with Distributed Photovoltaic Power Supply

The access of distributed photovoltaic with high permeability will lead to significant changes in the fault characteristics of distribution network. This paper takes the grid-connected power system of distributed photovoltaic power supply on a demonstration ship as the research object, and analyzes the fault characteristics of distributed photovoltaic access and short circuit current. The change of fault characteristics and short-circuit current in different segments before and after the failure of PV power supply when it is connected to 440V bus and 230V bus are studied.