What type of study is this?

This is a Quantitative Study study.

October 2, 2025Open Access

Revisiting Power System Stabilizers with Increased Inverter-Based Generation: A Case Study

Key Points

System stability can be compromised due to increased inverter-based resource integration, leading to instability.
Using the Kundur Two-Area System model, our analysis shows that PSS tuning methods do not always restore stability effectively.
Limited coordination in applying these tuning methods decreases their effectiveness, posing challenges for system damping.
The findings suggest a need for local and adaptive PSS tuning methods to maintain grid reliability under changing conditions.

Abstract

As power systems evolve with increasing production from Inverter-Based Resources (IBRs), their underlying dynamics are undergoing significant changes that can jeopardize system operation, leading to poorly damped oscillations or small-signal rotor angle instability. In this work, we investigate whether Power System Stabilizer (PSS) setting adjustments can effectively restore system stability and provide adequate damping in systems with increased IBR penetration, using the benchmark Kundur Two-Area System as a case study. Specifically, we evaluate the model-based Residues and P-Vref PSS tuning methods to examine their effectiveness under evolving grid conditions. Our findings indicate that the effectiveness of these tuning methods is not guaranteed, particularly when coordination is limited. Consequently, our case study motivates local and adaptive online PSS tuning methods.

Read Full Paperexternally

KI fragen

Bookmark

View Full Paper