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Record W4252534338 · doi:10.22215/etd/2018-12952

Parallel Domain Decomposition Based Power System Simulation

2018· dissertation· en· W4252534338 on OpenAlexaff
Anda Zhao

Bibliographic record

Venuenot available
Typedissertation
Languageen
FieldEngineering
TopicReal-time simulation and control systems
Canadian institutionsCarleton University
Fundersnot available
KeywordsComputer scienceDomain decomposition methodsComputationOverhead (engineering)Electric power systemParallel computingSet (abstract data type)DecompositionDomain (mathematical analysis)SupercomputerSpeedupLatency (audio)Power (physics)AlgorithmDistributed computingMathematicsEngineering

Abstract

fetched live from OpenAlex

With the continuous developing of power systems, simulation of modern systems requires more computational resources and more simulation time.Conventional techniques are not efficient due to the large size of equation set and inconvenient modelling methods.Although computing power has increased dramatically, we still need new algorithms to improve the simulation speed.To address the above problems, this thesis proposes an efficient parallel calculation algorithm based on domain decomposition method.The new approach reduces the computational cost by calculating in parallel and splitting the equation set.The proposed approach partitions the system into several sub-systems to be solved in parallel on different processors and at the same time preserves the details of the original system.To reduce the cost of communication overhead and computation load, latency characteristic is utilized.Not all the Jacobian matrix is updated in every iteration.Traditional simulators (transient stability and electromagnetic transient) as well as the hybrid simulator are described and compared with this algorithm.Computational examples are used to validate the accuracy of new proposed algorithm and its efficiency.

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.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation 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 score0.004
Threshold uncertainty score0.013

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0010.000
Open science0.0010.001
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0040.001

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.

Opus teacher head0.005
GPT teacher head0.249
Teacher spread0.243 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designSimulation or modeling
Domainnot available
GenreEmpirical

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".

Quick stats

Citations0
Published2018
Admission routes1
Has abstractyes

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