Handling Initial Conditions in Vector Fitting for Real Time Modeling of Power System Dynamics
Name
energies-14-02471-v3.pdf
Description
Published version
Size
1.89 MB
Format
Adobe PDF
Checksum (MD5)
9e6ee04a8fc0636af550e89b79efdd31
Author(s)
Bradde, Tommaso
Chevalier, Samuel
De Stefano, Marco
Grivet-Talocia, Stefano
Daniel, Luca
Date Issued
April 2021
Journal
Energies
Publisher
MDPI AG
Citation
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
Version
Final published version
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.3390/en14092471
