On-Line Parameter Estimation Based Speed Control of PM AC Motor Drive in Flux Weakening Region
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Bibliographic record
Abstract
This paper presents a nonlinear controller based speed control of an interior permanent-magnet synchronous motor (IPMSM) over a wide speed range. The proposed controller incorporates both torque and flux controls with parameter estimation. The controller designed from standard linear d-q axis motor model with constant parameters will lead to an unsatisfactory prediction of the performance of an interior permanent magnet motor owing to the magnetic saturation of these machines particularly, at high speed conditions. In this work, an adaptive backstepping based control technique has been developed for an IPMSM, wherein system parameter variations as well as field control will be taken into account at the design stage of the controller. The proposed adaptive backstepping based high speed control of IPMSM drive has been successfully implemented in real time for a laboratory 1 hp IPMSM drive. The performance of the proposed drive is tested both in simulation and experiment at different operating conditions. The robustness of the controller and its prospective real-time industrial drive application is evidenced by the results.
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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