A Survey on IBR Penetrated Power System Stability Analysis Using Frequency Scanning

TL;DR

This survey reviews frequency scanning methods for analyzing inverter-based renewable power system stability, categorizing modeling techniques, comparing scanning approaches, and providing guidance for effective stability assessment in high-renewable grids.

Contribution

It systematically compares various frequency scanning techniques and modeling approaches, offering a comprehensive guide for stability analysis in inverter-rich power systems.

Findings

Frequency scanning methods vary in effectiveness and applicability.

White-, black-, and gray-box models each have distinct advantages.

The survey highlights best practices for stability assessment in renewable-rich grids.

Abstract

The rapid rise in inverter-based renewable resources has heightened concerns over subsynchronous resonance and oscillations, thereby challenging grid stability. This paper reviews approaches to identify and mitigate these issues, focusing on frequency scanning methods for stability assessment. It categorizes white-, black-, and gray-box modeling techniques, compares positive-sequence, dq-frame, and alpha-beta domain scanning, and examines perturbation shapes like step, ramp, and chirp. A comparative study highlights their strengths, limitations, and suitability for specific scenarios. By summarizing past events and surveying available tools, this work guides operators and researchers toward more effective, reliable stability analysis methods in grids with high renewable penetration.