Journal article
Handling Initial Conditions in Vector Fitting for Real Time Modeling of Power System Dynamics
Polytechnic University of Turin1
Center for Electric Power and Energy, Centers, Technical University of Denmark2
Energy Analytics and Markets, Center for Electric Power and Energy, Centers, Technical University of Denmark3
Department of Electrical Engineering, Technical University of Denmark4
Massachusetts Institute of Technology5
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.
Language: | English |
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Publisher: | MDPI AG |
Year: | 2021 |
Pages: | 2471 |
ISSN: | 19961073 |
Types: | Journal article |
DOI: | 10.3390/en14092471 |
ORCIDs: | Chevalier, Samuel , 0000-0002-9464-2535 , 0000-0001-8981-5940 and 0000-0002-5463-3810 |
T Technology power system dynamics real-time modeling vector fitting