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Analysis and Control of Modular Multilevel Converters using Discontinuous Modulation

2020· article· en· W3037165732 on OpenAlexaff
Deepak Ronanki, Sheldon S. Williamson

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicHVDC Systems and Fault Protection
Canadian institutionsOntario Tech University
Fundersnot available
KeywordsRippleModular designConvertersCapacitorVoltageSequence (biology)Control theory (sociology)Electronic engineeringSpace vector modulationSimple (philosophy)EngineeringPower (physics)Null vectorComputer scienceTopology (electrical circuits)MathematicsControl (management)Pulse-width modulationElectrical engineeringPhysicsArtificial intelligence

Abstract

fetched live from OpenAlex

This paper proposes a simple and generalized approach of an adaptive zero-sequence voltage injection to control the modular multilevel converter with reduced switching losses and capacitor voltage ripple. In this method, a simple approach based on the location of the voltage vector mapping to a two-level space-vector diagram is presented to determine various zero- sequence voltage components. A generalized control structure is established to conduct the perform studies among different ZSV components. Moreover, a real-time electro-thermal model is developed in PLECS platform to analyze the thermal loading on power devices. The performance and effectiveness of the proposed approach is analyzed through detailed hardware-in-the-loop experimental studies. Finally, the performance of MMC with different zero-sequence voltage injections are holistically evaluated to determine the best possible sequence in terms of reduced capacitor voltage ripple and power losses.

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 score0.565
Threshold uncertainty score0.238

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 head0.014
GPT teacher head0.203
Teacher spread0.190 · 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

Citations2
Published2020
Admission routes1
Has abstractyes

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