Modified PWM with indirect current control technique applied to a single-phase shunt active power filter topology
Bibliographic record
Abstract
This paper presents and analyses a new indirect current control technique applied to single-phase shunt active power filter (SPSAPF) implemented with pulse width modulation (PWM) based on two comparisons to compensate harmonics and reactive power of a non-linear load. This method uses a residual signal constructed from the comparison between the supply current and the desired value. To evaluate its performance, we have compared it with the direct current control technique based on the classic demodulation. The PWM control technique adopted is based on two comparisons of a triangular high frequency carrier signal and the source harmonic current. This harmonic signal namely +v and its opposite value -v are used, at the same instant, in the comparison process to generate the gate signals for the semi-conductor devices. By using the averaging technique, the direct consequence of using this PWM technique is that the transfer function of the SPSAPF becomes a pure gain. Simulation results using power system blockset Toolbox PSB of Matlab show the performance of the new control algorithm for SPSAPF implemented with the PWM adopted and its capability to compensate harmonics and reactive power.
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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 | 0.000 |
| 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 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".