A new multiple-loops control scheme for a three-phase/switch/level PWM rectifier based on the input/output feedback linearization technique
Bibliographic record
Abstract
In this paper, a new nonlinear control system is developed and applied to a three-phase, three-switch, three-level AC-to-DC converter. The derivation of the proposed control law is based on a fourth-order low-frequency time-invariant nonlinear state model of the converter. This mathematical model, expressed in a rotating frame, is obtained using averaging techniques over a double time base. The proposed control law is designed on the basis of a multiple-loops control strategy, where an exact input-output feedback linearization is applied to the inner and outer loops. The regulators are designed in order to ensure the shaping of the line-currents, the regulation of the DC output voltage and the compensation of the DC load unbalance. The performances of the proposed control law in steady state and transient regimes are then analyzed by numerical simulations. In this purpose, a digital version of the converter is implemented in the Matlab/Simulink framework, using the switching function approach. The obtained simulation results show a nearly zero current harmonic distortion, a unity displacement factor, a low output voltage ripple, and a high robustness to DC load unbalance.
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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 | 0.001 |
| 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 | 0.000 | 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".