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Model Predictive Control for LCL-Filtered DG-Grid Interfacing Inverters With State Variable and Input Disturbance Estimation

2021· article· en· W3190914476 on OpenAlexaff
Cheng Xue, Yunwei Li

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicMultilevel Inverters and Converters
Canadian institutionsUniversity of Alberta
Fundersnot available
KeywordsControl theory (sociology)InverterVoltageCapacitorInterfacingComputer scienceModel predictive controlGridEstimatorVoltage sourceBandwidth (computing)Pulse-width modulationEngineeringControl (management)Mathematics

Abstract

fetched live from OpenAlex

Due to the high-order property and multivariable coupling characteristics of LCL filtered voltage source inverter (VSI), model predictive control (MPC) have received great favor with the advantage such as the intuitive concept, improved bandwidth, and multiobjective optimization. To suppress the inherent resonance problem, reject input disturbance and meet the multifunction requirement in distributed generation (DG) units, a model-based estimator is proposed in this paper, which exploits the previous four consecutive output information to simultaneously calculate the value of state variable and input disturbance in real-time. Specifically, with only grid voltage and current measurement, the inverter-side current, capacitor voltage, and input voltage disturbance can be obtained, which are used to generate the optimized control law. Constant switching frequency is achieved thanks to the modulator. Therefore, the proposed control law can improve the injected power quality, and also the system hardware cost can be saved. Simulation and experiment are realized to verify the proposed method.

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 score0.010
Threshold uncertainty score0.020

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0010.000
Open science0.0010.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0010.000

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 head0.010
GPT teacher head0.194
Teacher spread0.183 · 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

Citations1
Published2021
Admission routes1
Has abstractyes

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