Short-Circuit Current Calculation of Distribution Network Based on the VDNAP

This article elaborates the establishment mechanism and realization method of distribution network analysis platform VDNAP (Visual Distributed Network Analysis Platform) based on geographic information systems relatively deeply, based on describing the method of short-circuit current calculation on superposition principle and then use the method to carry out short-circuit current calculation in VDNAP with taking a single line of certain urban areas for example, which achieve the effective combination of VDNAP and short-circuit current algorithm, and avoid the tedious work of user manual modeling, using the method of short-circuit current calculation based on superposition principle overcome the difficulties encountered when the traditional symmetrical component method is applied to distribution system short-circuit current calculation.