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Modulated Model Predictive Control for Grid-Connected Current Source Converter With LC Resonance Suppression

2020· article· en· W3037431550 on OpenAlexaff
Cheng Xue, Li Ding, Yunwei Li

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicMultilevel Inverters and Converters
Canadian institutionsUniversity of Alberta
Fundersnot available
KeywordsControl theory (sociology)Model predictive controlDuty cycleComputer scienceCapacitorCorrectnessObserver (physics)GridSpace vector modulationVoltageSupport vector machineInverterAlgorithmEngineeringMathematicsControl (management)Physics

Abstract

fetched live from OpenAlex

This article proposes a modulated model predictive control (MPC) with finite-control-set (FCS) to tackle the LC resonance problem in grid-connected current source converter (CSC). The proposed scheme pre-calculates the duty cycle of two active current vectors and the zero current vector for three virtual vectors, and then a cost function, in which the capacitor voltage feedback is introduced besides the grid current error penalization, is designed to select the optimized modulated vector. Therefore, the FCS reduces to only three virtual vectors during each predictive horizon with low computational burden. The proposed method not only realizes the optimization process including vectors selection and duty cycle determination simultaneously, but also can achieve superior steady-state performance and well dynamic response without LC resonance. Constant switching frequency can be realized via embedding space vector modulation (SVM) into the MPC algorithm. Capacitor voltage is estimated by an observer instead of using transducers to save hardware cost. Simulated and experimental results have verified the correctness and effectiveness of 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 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 score0.984
Threshold uncertainty score0.871

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
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 head0.016
GPT teacher head0.204
Teacher spread0.188 · 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 teacher head, 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
Published2020
Admission routes1
Has abstractyes

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