Stability Analysis of Heffron-Phillips SMIB Model with Integrated Power System Stabilizer and Effect of Time Delay

The Heffron-Phillips Single Machine Infinite Bus (SMIB) model, integrated with a power system stabilizer (PSS), offers a comprehensive depiction of a synchronous generator linked to an infinite bus within a power network. This model adeptly captures the interplay of mechanical and electrical aspects of the generator, along with the impact of a power system stabilizer on overall stability. The PSS acts as a control mechanism to attenuate oscillations and enhance dynamic stability. The synchronous generator's traits, including inertia, damping, and electrical characteristics, are represented in the Heffron-Phillips SMIB model. The turbine governor and excitation systems symbolize the mechanical and electrical components, respectively. These elements interact internally and with the external power system through voltage and mechanical power. Incorporating time delay in the power system stabilizer adds complexity, stemming from communication and processing delays. Modeling a delayed PSS within the Heffron-Phillips framework demands scrutiny of its impact on system dynamics. Time delays can influence control system stability and performance, necessitating careful analysis and tuning.