Modified Series Active Power Filter for L-type Single-phase Bridge Inverter
Bibliographic record
Abstract
In single-phase bridge inverters, low DC voltage utilization results in high total harmonic distortion (THD) in AC current when filtering parameters are held constant. This high THD forces conventional L-filter designs to use higher inductance to meet standards, which in turn increases system volume and cost. This paper presents a modified series active power filter (APF) that mitigates current distortion without increasing inductance. Compared to the previous series APF, the modified topology borrows the idea of cascaded H-bridge structure, eliminating the need for an extra AC source. This paper discusses the operating principle of the modified series APF, highlighting its difference from conventional cascaded H-bridge modulation techniques. Simulation results show that the proposed APF reduces the required inductance by over 50%— from 3mH to 1.4mH—while maintaining comparable current THD performance.
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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) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".