Voltage Profile Enhancement of an IEEE 14 Bus System by using SVC

In power systems, it is crucial to maintain a secure and stable operation, avoiding voltage collapses while delivering electricity to a range of heavy loads. Reactive power limits play an increasingly important role in these systems, and compensators are essential in regulating the addition or absorption of reactive power to counteract voltage instability. When the system experiences an increase in demand or equipment failure, compensators provide reactive power in under-voltage conditions and absorb it in over-voltage conditions. This study focuses on the modeling and sizing of Static VAR Compensators (SVCs), which are shunt-connected Flexible Alternating Current Transmission Systems (FACTs) devices. SVCs adjust the reactive components of current to maintain or regulate power, ensuring the stability of the system. To determine the required amount of reactive power, the study employs PV and QV analysis along with load-flow analysis using the PSAT toolbox in MATLAB. These analyses are crucial in determining the required amount of reactive power, and the PSAT toolbox provides a comprehensive solution for these tasks. The results of this study highlight the importance of proper modeling and sizing of SVCs in maintaining system stability and avoiding voltage collapses.