Experimental Study of Torque-Ripple and its Effect on the Flux Weakening Range of Synchronous Reluctance Machines
Bibliographic record
Abstract
Synchronous reluctance motors (SynRMs) exhibit a high rotor anisotropy in order to obtain a performance comparable to that of permanent magnet synchronous motors. The air-gap flux density is not sinusoidal due to the stator slots and rotor flux barriers. The non-sinusoidal distribution of the air-gap flux causes torque-ripple in the synchronous reluctance machine. This paper proposes an experimental method to measure the torque-ripple of the synchronous reluctance machine at static conditions. The proposed method is used to study the torque-ripple of two similarly sized synchronous reluctance machines. Experimental results are presented for the torque-ripple at various operating conditions including extended speed region. It is found that the percentage torque-ripple for SynRMs increases in the extended speed region. The effects of torque-ripple in this region is experimentally studied, and it is found that the torque-ripple places a limit on the torque-speed range of the motor.
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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".