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Record W4387099746 · doi:10.1080/15435075.2023.2262005

Long-term optimal coordination of hydro-wind-thermal energy generation using stochastic dynamic programming

2023· article· en· W4387099746 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueInternational Journal of Green Energy · 2023
Typearticle
Languageen
FieldEngineering
TopicElectric Power System Optimization
Canadian institutionsÉcole de Technologie Supérieure
Fundersnot available
KeywordsRenewable energyWind powerMathematical optimizationDynamic programmingStochastic programmingComputer scienceTerm (time)Environmental scienceEngineeringMathematicsElectrical engineering

Abstract

fetched live from OpenAlex

Clean alternative energy and a greater focus on climate change aim to increase the integration of Renewable Energy Sources (RES) into power system networks. As a relatively inexpensive renewable energy, wind energy is integrated into the electrical network to reduce its operating costs. A long-term optimal scheduling model for hydro-wind-thermal in a hybrid generation system is established to find the minimum cost trajectory of energy generation at each period under various constraints. Based on the proposed model and different types of power plants, the original complex problem decomposed into hydro-wind-thermal subproblems. The stochastic Dynamic programming technique (SDP) is employed to solve the complete optimization. In this research, the SDP technique is preferred. This technique handles multistage decision processes by splitting problems down into sequential stages. Because it can incorporate nonlinear and stochastic features into a dynamic programming problem, it has been successful in this hybrid system. A penalty factor was added to the model to reduce outflow variations. As can be seen from the results, outflows are very high during peak demand periods and very low during high inflows. Furthermore, the cost decreases as demand increases, from 40,082.26 $/GWh in May when demand is 10,275 Gwh to 16,536.32 $/GWh in January when demand is 17,503 Gwh.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.564
Threshold uncertainty score0.734

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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.

Opus teacher head0.012
GPT teacher head0.247
Teacher spread0.235 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it