Noise and Vibration Prediction of a Six-Phase IPMSM in a Single Open-Phase Failure Under a Negative Sequence Current Compensated Fault Tolerant Control Mode
Bibliographic record
Abstract
Due to a multiphase configuration, six-phase interior permanent magnet synchronous machines (IPMSMs) exhibit the inherent reliability and fault-tolerant capabilities. Using a fault-tolerant control (FTC) method, the machine is still able to deliver the desired torque under the open-phase fault with a potential degradation in its efficiency and vibration behavior. The vibroacoustic characteristics of the IPMSM under the faulty operation during the FTC mode have not been studied in the literature. To fill this knowledge gap, the simulation and experiment-based noise and vibration (NV) analysis of a six-phase IPMSM in a single open-phase condition using a negative sequence current-compensated FTC mode is studied in this article. First, the whole procedure of the NV analysis for the IPMSM model is introduced. The calculation of the electromagnetic (EM) force is then studied to explore the main excitation of the vibration in the system. After this, the NV synthesis is carried out and the simulation results of the NV under a negative sequence current-compensated FTC mode are obtained. It is found that the 28th order of the flux density spatial harmonics component influences vibration the most. Finally, the NV predictions in both healthy mode and controlled faulty mode are verified by experiments.
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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".