Abstract
This letter presents a novel knowledge-informed deep learning method for the fine-grained localization of forced oscillation sources (FOSs). This method can effectively identify multiple FOSs under anomalous measurements. First, a knowledge-guided block based on dissipated energy flow (DEF) is proposed. In this block, phasor measurement unit (PMU) signals are disassembled and reconstructed in the time-frequency domain to extract DEF knowledge. Subsequently, a spatial-temporal graph attention (ST-GAT) network is employed. Topology information is embedded into this network to capture the spreading patterns of FOSs.
Original language | English |
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Journal | IEEE Transactions on Power Systems |
ISSN | 0885-8950 |
DOIs | |
Publication status | Accepted/In press - 2025 |
Bibliographical note
Publisher Copyright:© 1969-2012 IEEE.
Keywords
- dissipated energy flow method
- forced oscillation
- knowledge-informed deep learning
- oscillation localization