Wide-Band Constant-Parameter Voltage-Behind- Reactance Model of Squirrel-Cage Induction Machines
Bibliographic record
Abstract
Variable frequency drives are widely utilized in many commercial and industrial applications. Therein, typically, a three-phase squirrel-cage induction machine (IM) is fed from an inverter through a cable. To design and tune such systems, various models of IMs have been proposed in the literature to study the motor-converter interactions and the low-to-high frequency phenomena. This paper presents a wide-band model for the IMs that is valid in the frequency range from DC to ten MHz. The new model is obtained by incorporating the low-mid frequency voltage-behind-reactance model with the universal high-frequency stator and bearing circuit models. The performance of the proposed model is demonstrated using computer simulations and experimental results obtained from a 7.5 hp induction motor connected to a drive system through a cable. The new model is demonstrated to accurately predict the common mode (CM) and differential mode (DM) impedances, reflected transient over-voltages, CM currents, and bearing voltages, all representing an advantage over the conventional/existing IM models.
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How this classification was reachedexpand
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".