Data-Driven Diagnostics of Mechanism and Source of Sustained Oscillations

作者：Wang Xiaozhe^*; Turitsyn Konstantin

来源：IEEE Transactions on Power Systems, 2016, 31(5): 4036-4046.

DOI：10.1109/TPWRS.2015.2489656

• Power system stability
• oscillation diagnostics
• phasor measurement units
• weakly damped oscillation
• limit cycle
• Hopf bifurcation
• forced oscillation

Sustained oscillations observed in power systems can damage equipment, degrade the power quality and increase the risks of cascading blackouts. There are several mechanisms that can give rise to oscillations, each requiring different countermeasure to suppress or eliminate the oscillation. This work develops mathematical framework for analysis of sustained oscillations and identifies statistical signatures of each mechanism, based on which a novel oscillation diagnosis method is developed via real-time processing of phasor measurement units (PMUs) data. Case studies show that the proposed method can accurately identify the exact mechanism for sustained oscillation, and meanwhile provide insightful information to locate the oscillation sources.

• 出版日期2016-9
• 单位MIT