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Topology and Parameter Identification in Electrical Distribution Systems using Spatial Priors

2024· article· en· W4407362332 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.
fundA Canadian funder is recorded on the work.

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldComputer Science
TopicMetaheuristic Optimization Algorithms Research
Canadian institutionsUniversity of Waterloo
FundersUniversity of WaterlooMitacs
KeywordsPrior probabilityTopology (electrical circuits)Identification (biology)Computer scienceDistribution (mathematics)Artificial intelligenceMathematicsBayesian probabilityMathematical analysisCombinatorics

Abstract

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This manuscript presents novel methods that allow the consideration of spatial priors derived from Geographic Information Systems (GIS) for System Identification (SI), i.e., Topology Identification (TI) and Parameter Identification (PI), in electrical distribution systems. The proposed methods are designed to allow flexibility in the assumed measurement devices and the integration of micro-Phasor Measurement Units (µPMU) and Non-Phasor Measurement Units (NPMU), based on power flow approximations and GIS data associated with the location of measurement devices to deduct topological priors and cable and line parameter ranges based on spatial relationships between measurements. Based on a Mixed-Integer Quadratic Programming (MIQP) optimization problem, the proposed SI approach can handle measurement errors and noise. The presented method is demonstrated on a benchmark 17-node Low Voltage (LV) grid for three different scenarios, analyzing errors with respect to topology and parameters, as well as the computational effort. It is shown that by using spatial priors, the proposed SI method performs better than existing techniques.

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: none
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.989
Threshold uncertainty score0.440

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
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 head0.027
GPT teacher head0.320
Teacher spread0.292 · 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