Hybrid Method Based on Metaheuristics and Interior Point for Optimal Power Flow
Bibliographic record
Abstract
In this paper we present a hybrid algorithm based on metaheuristics and the interior point (IP) method from MATPOWER to solve the optimal power flow problem. The control variables optimized are the real power and voltage of the generators, the transformer tap ratios and angles and the settings of the static volt-ampere reactive compensators (SVARs). The metaheuristic is used to optimize the discrete variables while MATPOWER is used at every evaluation of the fitness function to compute optimized values for the continuous variables. Compared to methods relying only on metaheuristics, our proposed approach is able to optimize the control settings for networks that are much larger. Compared to using MATPOWER alone, our proposed approach is able to optimize the transformer and the SVAR settings. To select the metaheuristic that is best suited for this application, five metaheuristics were implemented and compared. The software was implemented in MATLAB and parallelized to run on a computer cluster. The proposed algorithm was tested on networks up to 2383 buses.
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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 | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 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".