Modeling the Impact of System Disturbances on Grid-Connected DFIG Using Dynamic Phasor FEM

A co-simulation study of a wind-driven Doubly Fed Induction Generator and its connected power system is presented in this paper to study the generator performance under network disturbances. In order to accurately model core-saturation and harmonic effects, the machine is modeled using a Dynamic Pha...

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Bibliographic Details
Published in:IEEE transactions on industry applications 2024-01, Vol.60 (1), p.1-12
Main Authors: Almozayen, Mohamed A., Knight, Andrew M.
Format: Article
Language:English
Subjects:
DFIG
Disturbances
Doubly fed induction generators
dynamic phasor modeling
fault
Finite element analysis
Finite element method
finite element modeling
Induction generators
Magnetic cores
Magnetic flux
Mathematical models
Modelling
Phasors
Power system dynamics
power system modeling
Power system stability
Simulation
Solvers
system disturbance
Voltage sags
wind energy
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Summary:A co-simulation study of a wind-driven Doubly Fed Induction Generator and its connected power system is presented in this paper to study the generator performance under network disturbances. In order to accurately model core-saturation and harmonic effects, the machine is modeled using a Dynamic Phasor Finite Element model that couples the state variables of a co-simulated system. The presented co-simulation solver is used to study the influence of various power system disturbances on the performance of a grid-connected DFIG. The studied grid disturbances are symmetrical and asymmetrical voltage sags, and harmonic pollution in the source voltage. Simulation results of the Dynamic Phasor FEM method are compared to traditional time-domain FEM (considering core saturation for both solvers) to prove the validity of the new method for modeling disturbed power systems in an accurate and fast way.
ISSN:0093-9994
1939-9367
DOI:10.1109/TIA.2023.3299251