Three-Phase Single-Stage Bidirectional Isolated ACAC Converter with Reduced Count of Switches
Bibliographic record
Abstract
In this paper, a three-phase single-stage bidirectional isolated AC-AC converter with fewer switches than other converters of the same type is proposed. In the proposed single-stage converter architecture, the primary and secondary sides of the two high-frequency transformers are coupled to two four-switch voltage source converters (VSCs), resulting in two dual active half-bridge (DAHB) converters with shared switches. The proposed converter can be controlled using conventional control strategies and can regulate the power flow in both directions by altering the modulation index of sinusoidal pulse width modulation (SPWM) and phase-shift angle. The converter can also perform power factor correction (PFC), in addition to other notable characteristics including galvanic isolation between the primary and secondary sides, step-up and step-down capability and voltage regulation without adding any further converters. This paper presents the operation, control and characteristics of the proposed converter. Experimental results from an experimental prototype that demonstrate the converter's feasibility are presented.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.004 | 0.001 |
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 source (direct Gemma or distilled Codex), 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".