Spectral fitting approach to estimate electromechanical oscillation modes and mode shapes by using vector fitting

Bañuelos-Cabral, E.S.; Nuño-Ayón, J.J.; Gustavsen, Bjørn; Gutierrez-Robles, José Alberto; Galván-Sánchez, V. A.; Sotelo-Castañón, J.; García-Sánchez, Jorge Luis

doi:10.1016/j.epsr.2019.105958

Cited by 9 publications

(2 citation statements)

References 19 publications

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“…Most recently, vector fitting approaches have been leveraged to construct power system models from measured field data. In [23], authors use the numerical Laplace transform to push the problem into the frequency domain. Next, vector fitting and relative dominant-pole measurements (RDPMs) are iteratively leveraged to build estimations of wide area system modes.…”

Section: Introductionmentioning

confidence: 99%

Handling Initial Conditions in Vector Fitting for Real Time Modeling of Power System Dynamics

et al. 2021

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This paper develops a predictive modeling algorithm, denoted as Real-Time Vector Fitting (RTVF), which is capable of approximating the real-time linearized dynamics of multi-input multi-output (MIMO) dynamical systems via rational transfer function matrices. Based on a generalization of the well-known Time-Domain Vector Fitting (TDVF) algorithm, RTVF is suitable for online modeling of dynamical systems which experience both initial-state decay contributions in the measured output signals and concurrently active input signals. These adaptations were specifically contrived to meet the needs currently present in the electrical power systems community, where real-time modeling of low frequency power system dynamics is becoming an increasingly coveted tool by power system operators. After introducing and validating the RTVF scheme on synthetic test cases, this paper presents a series of numerical tests on high-order closed-loop generator systems in the IEEE 39-bus test system.

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Section: Introductionmentioning

confidence: 99%

Handling Initial Conditions in Vector Fitting for Real Time Modeling of Power System Dynamics

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Most recently, vector fitting approaches have been leveraged to construct power system models from measured field data. In [20], authors use the numerical Laplace transform to push the problem into the frequency domain. Next, vector fitting and relative dominant-pole measurements (RDPMs) are iteratively leveraged to build estimations of the system modes.…”

Section: Introductionmentioning

confidence: 99%

Handling Initial Conditions in Vector Fitting for Real Time Modeling of Power System Dynamics

Bradde¹,

Chevalier²,

Stefano³

et al. 2020

Preprint

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This paper develops a predictive modeling algorithm, denoted as Real-Time Vector Fitting (RTVF), which is capable of approximating the real-time linearized dynamics of multi-input multi-output (MIMO) dynamical systems via rational transfer function matrices. Based on a generalization of the wellknown Time-Domain Vector Fitting (TDVF) algorithm, RTVF is suitable for online modeling of dynamical systems which experience both initial-state decay contributions in the measured output signals and concurrently active input signals. These adaptations were specifically contrived to meet the needs currently present in the electrical power systems community, where real-time modeling of low frequency power system dynamics is becoming an increasingly coveted tool by power system operators. After introducing and validating the RTVF scheme on synthetic test cases, this paper presents a series of numerical tests on high-order closed-loop generator systems in the IEEE 39-bus test system.

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Multi-channel measurement-based identification methods for mode estimation in power systems

Kontis

Avgitidis

Papadopoulos

et al. 2021

Electric Power Systems Research

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Spectral fitting approach to estimate electromechanical oscillation modes and mode shapes by using vector fitting

Cited by 9 publications

References 19 publications

Handling Initial Conditions in Vector Fitting for Real Time Modeling of Power System Dynamics

Handling Initial Conditions in Vector Fitting for Real Time Modeling of Power System Dynamics

Handling Initial Conditions in Vector Fitting for Real Time Modeling of Power System Dynamics

Multi-channel measurement-based identification methods for mode estimation in power systems

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