A modular photo-voltaic grid-connected inverter based on phase-shifted-carrier technique
Bibliographic record
Abstract
Residential photovoltaic grid-connected inverters are modular distributed power generation devices that convert the DC power from the roof-top solar panels to high-quality AC power at the utility grid interface. In this paper, the phase-shifted-carrier technique, which is normally used in high power multi-converter schemes, is applied to a modular grid-connected inverter to improve the output current waveform. First, it is shown, through analysis and simulation, that in the commonly-used photovoltaic grid-connected inverter topology, based on the phase-shift modulated full-bridge converter, the well-known rule of the phase-shift between the carrier signals of the adjacent modules is not valid for both odd and even number of modules. Then, a new general rule for the phase-shift is proposed, and finally, the validity of the proposed rule and its effect on the improvement of the quality of the output current waveform are verified through simulation.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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".