Single-Phase Bridge Inverter with Modified LCLLC Filter
Bibliographic record
Abstract
High-order passive filters are commonly used in single-phase bridge inverters to mitigate high-frequency harmonics generated by pulse width modulation (PWM), owing to their compact size and lower cost. This paper presents a modified LCL-LC filter with an LC circuit paralleled with the inductor of LCL filter to attenuate current harmonics at the switching frequency. Compared to the LLCL, LCCL, and LCLLC filters, which incorporate a resonant LC trap, the modified LCL-LC filter utilizes the inductor of the LCL filter as part of the trap loop, known as trap-LLC or LLC trap loop, thereby further reducing the required values of the additional LC circuit. A parameter design method based on the frequency choice of LCL filter resonance, LLC trap resonance, and LC resonance is presented. The modified LCL-LC filter is applied and compared to a 12 kW single-phase bridge inverter with LCL filter in MATLAB/SIMULINK. The simulation results demonstrate that the modified LCL-LC filter achieves better harmonic performance than the conventional LCL filter with $\mathbf{4 0 \%}$ reduction in the filter inductance.
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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".