Robust Multi-Objective Control of VSC-Based DC-Voltage Power Port in Hybrid AC/DC Multi-Terminal Micro-Grids
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Bibliographic record
Abstract
Hybrid ac/dc multi-terminal micro-grids are gaining high momentum under the smart grid paradigm to integrate renewable and clean energy resources either in the transmission or distribution systems. This paper presents a robust multi-objective controller for the voltage-source-converter (VSC)-based dc-voltage power-port in hybrid ac/dc networks. The proposed controller ensures excellent tracking performance, robust disturbance rejection, and robust stability against operating point and parameter variation with a simple fixed-parameter low-order controller. A two-degree-of-freedom control structure is proposed, where feed-forward tracking and base-line robust disturbance rejection controllers are employed to decouple disturbance rejection and tracking objectives. A disturbance rejection controller is designed, based on the singular-values (μ) synthesis approach, to achieve robustness against variation in converter operation point. Further, the effect of parametric uncertainty in the effective dc-link capacitance is mitigated by modifying the robust disturbance rejection controller, via the polynomial method, to ensure that the closed-loop poles are allocated in the pre-defined region in the complex plane even under parameter variation. A theoretical analysis and comparative simulation and experimental results are presented to show the effectiveness of the proposed control structure.
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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