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arXiv · 2508.17505

A Data-Driven Forced Oscillation Locating Method for Power Systems with Inverter-Based Resources

Yaojie Cai·Georgia Pierrou·Xiaozhe Wang·Geza Joos
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Abstract

Forced Oscillations (FO) stemming from external periodic disturbances threaten power system security and stability. The increasing penetration of Inverter-Based Resources(IBRs) further introduces FO, leading to new challenges in identifying and locating FO sources in modern power systems. In this paper, a novel data-driven method for locating FO in power systems with IBRs is proposed. Unlike previous works, a unified representation of FO originating from IBRs is considered, which further facilitates the development of the FO locating algorithm. Leveraging on Sparse Identification for a Nonlinear Dynamical (SINDy), a purely data-driven methodology is developed for locating the source of FO by interpreting the proposed model from measurements. Numerical results on the WECC 240-bus system validate the performance of the proposed approach in successfully locating FO in the presence of IBRs.

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Yaojie Cai, Georgia Pierrou, Xiaozhe Wang, Geza Joos. 2025-08-24. A Data-Driven Forced Oscillation Locating Method for Power Systems with Inverter-Based Resources. https://arxiv.org/abs/2508.17505

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