Modelling of electrical power distribution systems by application of experimental design

The purpose of this paper is to demonstrate the application of the method of experimental design to the analysis of electrical power distribution systems. The theory of experimental design allows us to construct and experimentally verify the qualitative model of a power distribution system in order to analyse a significance of each component in distribution system modelling. The paper presents results obtained from simulation studies on the effect of uncertain input data on the calculation of output characteristics of power distribution systems. An investigation of input data errors and their influence on systems analysis results has a particular importance in real-time modelling of power systems. The simulation experiment was carried out for the numerical model of an existing radially operated power distribution system of 15 kV.