Comparative Study Between Power System Blockset and PSCAD/EMTDC for Transient Analysis of Custom Power De- vices Based on Voltage Source Converter

This paper presents a comparative study between two commercial programs considering transient analysis of custom power devices based on voltage source converters. The programs investigated were the Power System Blockset for use with Matlab/Simulink, which employs state-variable analysis, and PSCAD/EMTDC, which is based on nodal analysis. The objective is to determine the main differences between them considering computation time, easiness of im- plementation of the necessary models, evaluation of the exis- tent libraries and accurateness of results. The custom power devices analyzed were the DSTATCOM and the DVR. In all studies presented, such devices were simulated by using de- tailed models, i.e. the switching elements IGBTs/diodes and the PWM signal generator were explicitly represented. In the end of work, the main advantages and disadvantages of each program are argued.