Time-Stepped Finite-Element Modeling of Three-Phase Transformer for Electromagnetic Transient Emulation on FPGA

The finite-element analysis is a powerful method to obtain detailed insight into the operation of any electromagnetic equipment. However, the required computational power to solve a finite-element modeled power equipment is so heavy that most Newton-Raphson-method-based algorithms can barely achieve...

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Bibliographic Details
Published in:IEEE open access journal of power and energy 2021, Vol.8, p.239-247
Main Authors: Xu, Qingjie, Liu, Peng, Dinavahi, Venkata
Format: Article
Language:English
Subjects:
Algorithms
Computational modeling
Computer applications
Computer simulation
Electromagnetic transients
Field programmable gate arrays
field-programmable gate arrays (FPGAs)
Finite element analysis
Finite element method
Hardware
Integrated circuit modeling
Latency
Mathematical model
Mathematical models
parallel processing
preconditioned conjugate gradient
real-time simulation
Solvers
Time-domain analysis
Time-varying systems
transformer
Transformers
Transmission lines
transmission-line modeling
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Description
Summary:The finite-element analysis is a powerful method to obtain detailed insight into the operation of any electromagnetic equipment. However, the required computational power to solve a finite-element modeled power equipment is so heavy that most Newton-Raphson-method-based algorithms can barely achieve real-time simulation. The low latency and hardware parallelism of the field-programmable gate array (FPGA) provides a path forward. In this paper, a parallel and deeply pipelined adaptive transmission-line modeling method with preconditioned conjugate gradient solver is designed in hardware and implemented on two Xilinx ® XCVU37P FPGAs for the finite-element modeling of a three-phase transformer. The accuracy of the transformer solver under both current-excited and voltage-excited conditions of the transformer was validated against the commercial FE simulation tool.
ISSN:2687-7910
2687-7910
2644-1314
DOI:10.1109/OAJPE.2021.3086042