Detailed Magnetic Equivalent Circuit Based Real-Time Nonlinear Power Transformer Model on FPGA for Electromagnetic Transient Studies
Why this work is in the frame
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Bibliographic record
Abstract
A detailed power transformer electromagnetic transient model would help in accurately predicting transient stresses and formulating adequate protection strategies in power systems. This paper presents a real-time nonlinear high-resolution magnetic equivalent circuit (HR-MEC) based transformer model on the field-programmable gate array for hardware-in-the-loop simulation. This model is inspired by the mesh generated in finite-element method (FEM) tools to depict the major flux paths in the transformer. All of the major nonlinear phenomena such as saturation, hysteresis, and eddy currents are captured in the transformer hardware emulation whose modules were developed in a 32-b floating point precision VHDL. The developed HR-MEC model and nonlinear numerical solution have been fully parallelized in hardware to achieve the lowest latency in the real-time implementation. The hysteresis in the transformer core is modeled using Preisach theory, and eddy currents are incorporated using a frequency-dependent network. The real-time results are validated using 3-D FEM analysis in JMAG software.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it