Reduction of Common-Mode Voltage and NP Voltage Oscillation for Three-Level Vienna Rectifiers Using Alternative Phase Opposition Disposition PWM
Bibliographic record
Abstract
In this article, a simple pulse width modulation (PWM) method based on zero-sequence component injection and alternative phase opposition disposition PWM (APODPWM) is proposed for three-level Vienna rectifiers to simultaneously reduce the common-mode voltage (CMV) and mitigate the neutral-point (NP) voltage oscillation. First, to avoid using the small vectors with high CMV, the range limitation of the zero-sequence component is investigated. Then, a specific zero-sequence component that satisfies the above limitation is calculated and injected into three-phase reference signals to balance the NP voltage. Moreover, for the zero-crossing intervals where the NP voltage oscillation cannot be suppressed, a coordinating factor is introduced to adjust the maximum and minimum reference signals for reducing the spike NP current. Finally, the effectiveness and performance of the proposed method are verified by experimental results.
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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".