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

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-kno...

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Main Authors: Bradde, Tommaso, Chevalier, Samuel, De Stefano, Marco, Grivet-Talocia, Stefano, Daniel, Luca
Other Authors: Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Format: Article
Language:English
Published: MDPI AG 2021
Online Access:https://hdl.handle.net/1721.1/130946
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author Bradde, Tommaso
Chevalier, Samuel
De Stefano, Marco
Grivet-Talocia, Stefano
Daniel, Luca
author2 Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
author_facet Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Bradde, Tommaso
Chevalier, Samuel
De Stefano, Marco
Grivet-Talocia, Stefano
Daniel, Luca
author_sort Bradde, Tommaso
collection MIT
description 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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spelling mit-1721.1/1309462022-09-30T12:22:45Z Handling Initial Conditions in Vector Fitting for Real Time Modeling of Power System Dynamics Bradde, Tommaso Chevalier, Samuel De Stefano, Marco Grivet-Talocia, Stefano Daniel, Luca Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science 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. 2021-06-15T19:22:34Z 2021-06-15T19:22:34Z 2021-04 2021-04 2021-06-11T13:50:31Z Article http://purl.org/eprint/type/JournalArticle 1996-1073 https://hdl.handle.net/1721.1/130946 Bradde, Tommaso et al. "Handling Initial Conditions in Vector Fitting for Real Time Modeling of Power System Dynamics." Energies 14, 9 (April 2021): 2471. © 2021 The Authors en http://dx.doi.org/10.3390/en14092471 Energies Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf MDPI AG MDPI
spellingShingle Bradde, Tommaso
Chevalier, Samuel
De Stefano, Marco
Grivet-Talocia, Stefano
Daniel, Luca
Handling Initial Conditions in Vector Fitting for Real Time Modeling of Power System Dynamics
title Handling Initial Conditions in Vector Fitting for Real Time Modeling of Power System Dynamics
title_full Handling Initial Conditions in Vector Fitting for Real Time Modeling of Power System Dynamics
title_fullStr Handling Initial Conditions in Vector Fitting for Real Time Modeling of Power System Dynamics
title_full_unstemmed Handling Initial Conditions in Vector Fitting for Real Time Modeling of Power System Dynamics
title_short Handling Initial Conditions in Vector Fitting for Real Time Modeling of Power System Dynamics
title_sort handling initial conditions in vector fitting for real time modeling of power system dynamics
url https://hdl.handle.net/1721.1/130946
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AT grivettalociastefano handlinginitialconditionsinvectorfittingforrealtimemodelingofpowersystemdynamics
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