Design of Static Var Compensator for Voltage Stability Improvement in 30 bus network

This paper presents a comprehensive study on the application of Static Var Compensator (SVC) devices for voltage stability and load flow optimization in the IEEE 30-bus power system. As modern power networks face increasing demand and complexity, maintaining voltage levels and minimizing power losses are critical challenges. This research investigates the impact of SVC compensation on bus voltage profiles using load flow analysis based on the Newton-Raphson method. The IEEE 30-bus system is simulated in MATLAB, and buses with voltages below 1.0 p.u. are identified as requiring compensation. Results show that SVC implementation stabilizes voltage levels, with buses initially operating at voltages as low as 0.920 p.u. being raised to approximately 1.0 p.u. Furthermore, the generator buses experienced a voltage improvement of up to 0.05 p.u., contributing to a robust and uniform voltage profile across the network. Power losses were also significantly reduced, demonstrating the dual benefits of voltage stabilization and loss minimization. The findings confirm that SVCs are effective in mitigating voltage sags, enhancing system resilience, and optimizing modern power grids.