2001 International Symposium on Lightning Protection 19-23 November 2001, Santos, S.P., Brazil

This letter offers a state space representation of a voltage sourced inverter that forms the building block of modern flexible AC transmission systems (FACTS), such as STATCOM, SSSC, and UPFC. The representation includes consideration of the output phase, firing angle, and the conduction period. This model is used to devise a control algorithm of the DC link voltage and the output voltage. The concepts are demonstrated with a case study using PSCAD and MATLAB.