A reduced common-mode voltage space vector modulation method for current source converters
Bibliographic record
Abstract
The common-mode voltage (CMV) produced from a converter system is a source of many problems. E.g. in the motor drive system, CMV might appear at the neutral point of the motor stator windings with respect to the ground and induce destructive bearing current. Reduced common-mode voltage space vector modulation (RCMV SVM) methods have been proposed in both voltage source converter (VSC) and current source converter (CSC) systems. The available RCMV SVMs reduce the CMV by avoiding the use of zero-state vectors. However, this will lead to some negative effects, such as shrink of modulation index range, increase of switching frequencies, and power quality performance deterioration, etc. In this paper, a RCMV SVM method for CSCs is proposed. It has almost the same harmonic performance compared to the conventional SVMs by allowing the use of zero-state vectors, but with much lower CMV. The effectiveness of the proposed RCMV SVM for CSCs is verified in an experimental prototype.
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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".