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Record W1974055302 · doi:10.1109/tpwrs.2014.2361451

On Dynamic Evaluation of Harmonics Using Generalized Averaging Techniques

2014· article· en· W1974055302 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

VenueIEEE Transactions on Power Systems · 2014
Typearticle
Languageen
FieldEngineering
TopicPower Quality and Harmonics
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsFrequency domainTime domainHarmonicsSpurious relationshipHarmonicTransient (computer programming)Domain (mathematical analysis)Computer scienceFourier transformWaveformControl theory (sociology)Fictitious domain methodMatching (statistics)Harmonic analysisAlgorithmMathematicsMathematical analysisEngineeringPhysicsAcousticsVoltageArtificial intelligence

Abstract

fetched live from OpenAlex

Two distinct methods of applying generalized averaging techniques appear in the literature. The first method involves a direct mathematical mapping of all system equations and inputs into the frequency domain to produce harmonic coefficients that precisely match those produced by a sliding window Fourier decomposition during transient events. Although this approach reproduces the same harmonic coefficients as a sliding window decomposition, it is shown that reconstruction of the time domain waveforms does not match the response of the underlying time domain system during transients. In contrast, a second method has recently been employed by some researchers that does not strictly map all system equations and inputs into the frequency domain, and yet it has been shown to precisely reproduce time domain results during transients. This paper shows that this matching of the time domain transients comes at the expense of introducing spurious dynamics into the associated harmonic domain model, which may not exist in the underlying time domain system. The limitations and implicit assumptions behind these two methods are identified and compared, thus allowing researchers to readily determine which compromises are to be made based on the application in question.

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)0.001
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 score0.809
Threshold uncertainty score0.867

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
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 head0.038
GPT teacher head0.286
Teacher spread0.248 · 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