Magnetization and Demagnetization Energy Estimation and Torque Characterization of a Variable-Flux Machine
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Bibliographic record
Abstract
This paper examines the required energy for the magnetization and demagnetization of magnets in a spoke type AlNiCo-based variable-flux machine and studies the torque characteristics of this machine at different magnetization levels. The low coercivity magnet in this machine can be magnetized or demagnetized using a short-time current pulse with negligible Ohmic loss. An advanced method is proposed to estimate the required energy for magnet demagnetization or magnetization to a specific level. A test procedure is developed to measure the energy that is injected to the variable-flux machine during the demagnetization and magnetization procedures. Since this machine has the ability to operate at various magnetization levels, it is of great importance to obtain the torque characteristics such as torque mean value, the peak to peak value of the torque, as well as the torque ripple, at different operating conditions. A static torque measurement test procedure using a variable speed drive system is developed to measure the torque waveform of the variable-flux machine at different magnetization levels. The verified finite element model of the variable-flux machine is used to analyze the harmonic content of the back-emf and the no-load air gap flux density at different levels of magnetization.
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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) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 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 | 0.000 |
| 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