Abstract
The majority of studies concerning power system analysis is based on computer software and mathematical modelling. Such possibilities are provided by a wide range of engineering and research software including MATLAB/Simulink. Presented work focuses on Simulink library usage for analysing voltage distribution and power flow along typical radial electrical grid and their validation using hardware power system simulator. During the studies four different models of grid were designed, using four tools provided by Simulink: Simulink time domain simulation, Specialized Power Systems time domain simulation, Simscape Load Flow and Specialized Power Systems Load Flow. Analytical analysis, as a sort of another verification, has also been carried out. The obtained results prove that all models in general properly depict the test grid configured on the hardware simulator. However, some discrepancies in the outcome can be observed indicating, that Simscape Load Flow tools are more reliable regarding to load flow analysis specific. The paper is a sort of report describing identified advantages and disadvantages of tools provided by MATLAB/Simulink and their potential limitations in terms of load flow analysis.