The use of a static series compensator (SSC) for the mitigation of voltage sags in a radial distribution network

This paper ivestigates on Power Quality improvements provided by Static Series Compensation in MV distribution networks. First of all, a simplified relationship between a fault in any position of a grid and a voltage sag experienced in another point of the grid itself is derived and its validity is verified by means of a detailed simulation performed in the PSCAD-EMTDC environment. Afterwards, the insertion of a Static Series Compensator at a MV busbar of a typical Italian network is simulated and the benefits due to its voltage sag compensation capability are outlined, considering faults both at MV and HV levels. ©2007 IEEE.