Modeling and design of a vector-controlled PWM active rectifier
Bibliographic record
Abstract
This paper presents both computer model and design of a three-phase vector-controlled voltage-source pulsewidth modulated (PWM) active rectifier, rated at 32 kW. A digitally-implemented space-vector pulsewidth modulation (SVPWM) is used for generating the switching signals for the insulated-gate bipolar transistor (IGBT) switches. The signals are obtained by sensing/closed-loop processing of ac input and do output current/voltage for tight bus regulation in both transient and steady state, at near unity power factor, i.e., at nearly sinusoidal input current in phase with voltage and with minimum harmonic content. The d-q voltage vector control in the synchronous frame, preceeded by the stationary-to-synchronous Park vector transformation and followed by the synchronous-to-stationary reference frame (inverse Park) transformation and duty-cycle/switching-vector determination, as well as the SVPWM generation have been hierarchically modeled using Saber simulator and practically implemented, with simulation and experimental results verifying the theoretical concepts.
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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".