Sliding mode control of 3-phase shunt active filter in the d-q frame
Why this work is in the frame
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Bibliographic record
Abstract
In this paper a sliding mode approach is developed to control a three-phase, three-wire voltage source inverter operating as a shunt active filter (AF). The AF has to compensate for harmonics, reactive and unbalanced nonlinear load currents while regulating its self-supporting DC bus voltage. The novelty of the proposed control approach is that the sliding mode switching functions are constructed in such a way that the supply currents shaping and the AF dc voltage regulation are achieved simultaneously. Therefore, there is no need to divide the multivariable state space model in the synchronous d-q reference frame into inner and outer separate loops. The control design is based on Lyapunov stability criterion and the proposed control law has two parts: a switching component forcing the system's trajectory to the sliding surface and a continuous component valid on the sliding surface. The proposed control strategy allows a better stability and robustness over a wide range of operation. The variable structure controller presented is successfully demonstrated by simulation 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