Integrated Voltage and Generator Stability Analysis of a Three Bus System Combining SMIB and SMLB Systems

The Power System stability plays an extraordinary role in system security and reliability of power grid, and is broadly classified into Generator Stability and Voltage Stability. These two stability issues are can’t be separated with each other and one is interdepends on the other. The main objective of the article is to analyze both of these problems simultaneously with the development of a Three Bus System by integrating both these stability problems. The three bus test system is formed with Single Machine Infinite Bus (SMIB) System with that of the Single Machine Load Bus (SMLB) systems. The SMLB system used to study the absolute voltage stability alone whereas SMIB System is resembles the Generator Stability problem. The Simulink Model is developed for the three bus test system to evaluate the integrated angle and voltage stability analysis. The voltage stability can be assessed using pv and qv curves and angle stability is analyzed with power angle curves. Static Var Compensator (SVC) is used to improve the power system stability. The test system performance is evaluated and compared without and with Static Shunt Compensator.