A Novel State-Feedback Controller for Permanent Magnet Synchronous Machines
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Bibliographic record
Abstract
This paper presents a state feedback controller for speed control for permanent magnet synchronous motor (PMSM) drives. Both surface and interior PMSMs (i.e., SPMSM and IPMSM) have been considered. The state feedback gain in the proposed method is tuned based on the pole placement method, where the locations of the system poles are selected with respect to the desired control bandwidth. The proposed control method achieves the decoupling of q- and d- axes currents without linearization in the entire speed range. The performance of the proposed control method for load-torque rejection is compared against two widely used PI-based control methods, i.e., active damping and 2-degree-of-freedom techniques. It is verified that the proposed state-feedback control method achieves superior performance (e.g., reduced over/under-shoot in transients) for control of PMSMs compared to the PI-based methods.
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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