Model Order Reduction for Real-Time FPGA-Based Finite Element Transient Simulation of Three-Phase Transformer

The finite element method (FEM) is commonly used in modeling the electromagnetic field of transformers with high accuracy; however, computation time FEM prohibitively for real-time simulation due to model order. Reducing order helpful improve computational efficiency FEM. proper orthogonal decomposition (POD) an efficient reduce linear but encounters difficulties nonlinear models. In this paper, a reduction (MOR) based on combination POD and transmission-line (TLM) proposed time. TLM separate components from model, then domain model. obtained by can be solved parallel programmable gate array (FPGA) further. This paper has studied transient states three-phase transformer current excitation field-circuit coupling. hardware emulation results are validated offline using Comsol®.