Development and Implementation of a Nonlinear Controller Incorporating Flux Control for IPMSM
Bibliographic record
Abstract
This paper presents a nonlinear controller based speed control of an interior permanent-magnet synchronous motor (IPMSM) incorporating maximum torque per ampere (MTPA) based flux control. The controller designed from standard motor model with constant mechanical parameters will lead to an unsatisfactory prediction of the performance of an interior permanent magnet motor owing to the change of mechanical parameters particularly, for different load conditions. In this work, an adaptive backstepping based control technique has been developed for an IPMSM, wherein field control will be taken into account at the design stage of the controller. Thus, it is robust to dynamic uncertainties and does not require knowledge of the mechanical parameters of the system. The proposed controller incorporates both torque and flux controls. In addition the controller can reject any bounded immeasurable disturbances entering the system. Voltage level control inputs are designed using backstepping design methodology. The performance of the proposed adaptive backstepping based nonlinear controller is tested both in simulation and experiment for a 5 hp motor at different operating conditions. The results show that it can compensate all the mechanical parameters variation due to changing operating condition so that no priori knowledge of realtime parameters is required. The robustness of the controller and its prospective real-time industrial drive application is evidenced by the results.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| 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 | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
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 source (direct Gemma or distilled Codex), 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".