Investigation of Static Voltage Stability Using Multiple STATCOM in Power Systems

Enhancing the Maximum Loading Parameter (MLP) value in power system is very significant in terms of voltage stability. In this study, the relation between voltage and MLP in IEEE 14 buses system. Static Synchronous Compensator (STATCOM), a device of Flexible AC Transmission System (FACTS), is used for enhancing the MLP. Newton Raphson algorithm has been enhanced according to the admittance and jacobian matrix. In the analysis of continuous power flow, the comparisons of the cases without STATCOM, with STATCOM and multiple STATCOM have been done depending on the active and reactive power equations. This comparison has been done in the buses that have the lowest voltage profile in the continuous power flow. According to the results of this study it has been showed that the multiple use of STATCOM is very effective in terms of voltage stability in power systems.