Investigation of Static Voltage Stability Effects of Tap Changer Transformer in Power Systems

Abstract

In this study, it is emphasized that the effects of the static voltage stability that have been consisted by tap changer. The voltage-maximum loading parameters values of 3 transformers used in IEEE 14 bus system in different scenarios has been gained. İt this simulation study, Power System Analysis Toolbox (PSAT) has been used. The bus voltage profile has been investigated by doing continuous power flow that is connected to the changed in value of transformer while one of the transformers between 4-7, 4-9 and 5-6 buses is stable. As a result of the study, ıt has been observed that static voltage stability on the tap changer of the transformers between buses at 5-6 is very effective compared to the tap changer of the other transformers.