A Generalized State-Space Averaged Model of the Three-Level NPC Converter for Systematic DC-Voltage-Balancer and Current-Controller Design
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Bibliographic record
Abstract
A comprehensive dynamic model of the three-level Neutral Point Diode Clamped (NPC) converter, based on the generalized state-space averaging method, is presented. The developed model mathematically describes (i) the reason for and (ii) the impacts of the system parameter tolerances on the drift/imbalance of the DC-side capacitor voltages. Then, based on the developed model (i) a novel controller to prevent DC capacitor voltage drift/imbalance and (ii) a decoupled current controller in the dq-frame are designed. The paper also presents a feed-forward control to eliminate the coupling between the voltage balancer and the current controller. The accuracy of developed NPC converter model and the effectiveness of the proposed controls are verified by time-domain simulations of a study system in the PSCAD/EMTDC environment.
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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 it