Search results for "Continental Europe"

showing 9 items of 9 documents

Improving angle stability by switching shunt reactors in mixed overhead cable lines. An Italian 400 kV case study

2019

Stringent environmental constraints make the construction of new transmission overhead lines more and more difficult. Alternatively, today it is possible to use cable lines for high (HV) and extra-high (EHV) voltage systems. The configuration of the so-called mixed lines can create some problems in the operation of the electrical system, both during steady-state and transient conditions. In particular, the system stability is one of the main concerns when analyzing the dynamic response of power systems. In this paper, the study of angular stability of a system containing a mixed line is presented: a specific control logic applied to the shunt reactors of the mixed line is proposed as improv…

Control and OptimizationMixed lineComputer scienceEnergy Engineering and Power Technologysystem stability; mixed line; cable; shunt reactor; switching; dynamic analysis; dynamic equivalent; Sicily; Italy; continental Europelcsh:TechnologyDynamic analysilaw.inventionElectric power systemSystem stabilitylawControl theoryElectrical and Electronic EngineeringControl logicEngineering (miscellaneous)SicilyDynamic equivalentlcsh:TRenewable Energy Sustainability and the EnvironmentContinental Europedynamic analysisSettore ING-IND/33 - Sistemi Elettrici Per L'EnergiaTransmission (mechanics)ItalyShunt reactorOverhead cableSwitchingShunt reactorShunt (electrical)Energy (miscellaneous)VoltageCable
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Analysis and simulations of the primary frequency control during a system split in continental europe power system

2021

The occurrence of system separations in the power system of Continental Europe has been observed in recent decades as a critical event which might cause power imbalances higher than the reference incident specified per system design, representing an actual challenge for the stability and safe operation of the system. This work presents an analysis and simulations of the primary frequency control in the Continental Europe synchronous area in conditions of system separation. The adopted approach is based on fundamental aspects of the frequency-containment reserve process. The analysis takes an actual event into consideration, which determined the separation of the system in January 2021. The …

Control and Optimizationlcsh:TRenewable Energy Sustainability and the EnvironmentComputer scienceEvent (relativity)Continental EuropeAutomatic frequency controlProcess (computing)Energy Engineering and Power TechnologyPower systems dynamicsContinental Europe; system split; frequency containment reserve; frequency control; power-frequency characteristic; power systems dynamicslcsh:TechnologyStability (probability)Power (physics)Settore ING-IND/33 - Sistemi Elettrici Per L'EnergiaElectric power systemControl theoryFrequency containment reserveFrequency controlPower-frequency characteristicSystem splitSystems designElectrical and Electronic EngineeringEngineering (miscellaneous)Energy (miscellaneous)
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Primary Frequency Control in the Power System of Continental Europe including the Dynamics of the HVDC Link France-Great Britain

2020

The paper presents a study of primary frequency control within the power system of Continental Europe (CE) including the dynamics of the high voltage direct current (HVDC) link between France and Great Britain (GB). The large-scale dynamic model of the CE system originally provided by ENTSO-E is extended with a more detailed representation of the whole HVDC interconnection. The dynamics of the GB synchronous area is also considered in the analysis, implementing a system equivalent suitable for primary frequency control studies. The opportunity of frequency containment reserve exchange between the two areas through the link is also investigated, considering supplementary frequency controls w…

InterconnectionFrequency responseHVDCComputer science020209 energymedia_common.quotation_subjectContinental Europe020208 electrical & electronic engineeringAutomatic frequency control02 engineering and technologyInertiaIFA2000Settore ING-IND/33 - Sistemi Elettrici Per L'EnergiaElectric power systemfrequency controlControl theoryfast frequency controlControl system0202 electrical engineering electronic engineering information engineeringHigh-voltage direct currentsynthetic inertiaRepresentation (mathematics)media_common
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The systemic lupus erythematosus IRF5 risk haplotype is associated with systemic sclerosis.

2013

Systemic sclerosis (SSc) is a fibrotic autoimmune disease in which the genetic component plays an important role. One of the strongest SSc association signals outside the human leukocyte antigen (HLA) region corresponds to interferon (IFN) regulatory factor 5 (IRF5), a major regulator of the type I IFN pathway. In this study we aimed to evaluate whether three different haplotypic blocks within this locus, which have been shown to alter the protein function influencing systemic lupus erythematosus (SLE) susceptibility, are involved in SSc susceptibility and clinical phenotypes. For that purpose, we genotyped one representative single-nucleotide polymorphism (SNP) of each block (rs10488631, r…

MaleLinkage disequilibrium:Phenomena and Processes::Genetic Phenomena::Phenotype [Medical Subject Headings]Polimorfismo de nucleótido simpleSLElcsh:MedicineAutoimmunityGenome-wide association studyLinkage DisequilibriumScleroderma:Phenomena and Processes::Genetic Phenomena::Genotype::Haplotypes [Medical Subject Headings]:Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::Humans [Medical Subject Headings]Gene Frequency:Named Groups::Persons::Population Groups::Continental Population Groups::European Continental Ancestry Group [Medical Subject Headings]Risk FactorsIRF5Genetics of the Immune SystemLupus Erythematosus Systemic:Diseases::Skin and Connective Tissue Diseases::Skin Diseases::Scleroderma Systemic [Medical Subject Headings]skin and connective tissue diseaseslcsh:ScienceMultidisciplinary:Diseases::Immune System Diseases::Autoimmune Diseases::Lupus Erythematosus Systemic [Medical Subject Headings]Predisposición genética a la enfermedad:Phenomena and Processes::Genetic Phenomena::Genetic Linkage::Linkage Disequilibrium [Medical Subject Headings]:Phenomena and Processes::Genetic Phenomena::Genotype::Genetic Predisposition to Disease [Medical Subject Headings]PhenotypeInterferon Regulatory FactorsSYSTEMIC SCLEROSISMedicineEvaluation of complex medical interventions Auto-immunity transplantation and immunotherapy [NCEBP 2]FemaleIRF5; SLE; TYPE I INTERFERON; SYSTEMIC SCLEROSISHaplotiposResearch ArticleFactores de riesgoImmunology:Chemicals and Drugs::Amino Acids Peptides and Proteins::Peptides::Intracellular Signaling Peptides and Proteins::Adaptor Proteins Signal Transducing::Interferon Regulatory Factors [Medical Subject Headings]:Check Tags::Male [Medical Subject Headings]:Health Care::Environment and Public Health::Public Health::Epidemiologic Factors::Causality::Risk Factors [Medical Subject Headings]Single-nucleotide polymorphismHuman leukocyte antigenBiologyPolymorphism Single NucleotideWhite PeopleAutoimmune DiseasesRheumatologyLupus eritematoso sistémicoGeneticsHumansGenetic Predisposition to DiseaseGrupo de ascendencia continental europeaAlleleBiologyAllele frequencyAllelesGenetic Association Studies:Phenomena and Processes::Genetic Phenomena::Genetic Structures::Genome::Genome Components::Genes::Alleles [Medical Subject Headings]Scleroderma SystemicHaplotypelcsh:R:Phenomena and Processes::Genetic Phenomena::Genetic Structures::Genome::Genome Components::Genetic Loci [Medical Subject Headings]Human Genetics:Phenomena and Processes::Genetic Phenomena::Genetic Variation::Polymorphism Genetic [Medical Subject Headings]Factores reguladores del interferónHaplotypesDesequilibrio de ligamiento:Check Tags::Female [Medical Subject Headings]Genetic LociTYPE I INTERFERONGenetics of DiseaseImmunologyGenetic PolymorphismClinical Immunologylcsh:Q:Phenomena and Processes::Genetic Phenomena::Gene Frequency [Medical Subject Headings]Population GeneticsIRF5PLoS ONE
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National trends in total cholesterol obscure heterogeneous changes in HDL and non-HDL cholesterol and total-to-HDL cholesterol ratio : a pooled analy…

2020

Artículo con numerosos autores. Sólo quedan reflejados el primero, los pertenecientes a la UAM y el colectivo

Malegupo de ascendencia continental asiáticaSettore MED/09 - Medicina InternaTotal Cholesterol ; Ldl Cholesterol ; Hdl Cholesterol ; Blood Lipids ; Multi-country StudyEpidemiologykolesterolihumanosBlood lipidsBLOOD-PRESSURE030204 cardiovascular system & hematologytriglicéridoschemistry.chemical_compound0302 clinical medicineHigh-density lipoproteinHDL cholesterolEpidemiologyMedicine and Health SciencesCARDIOVASCULAR RISK-FACTORSMedicine030212 general & internal medicinemediana edadlípidosPublic Environmental & Occupational Health2. Zero hungerancianoeducation.field_of_studyAge FactorsPublic Health Global Health Social Medicine and EpidemiologyGeneral MedicineMiddle Agedcolesteroladultokansainvälinen vertailuLipids3142 Public health care science environmental and occupational health3. Good healthEuropeCholesterolPopulation SurveillanceLDL cholesterolSERUM-LIPIDSFemalelipids (amino acids peptides and proteins)Life Sciences & BiomedicineAdultAsian Continental Ancestry GroupCanadaHDL cholesterol; LDL cholesterol; Total cholesterol; blood lipids; multi-country studymedicine.medical_specialtyAsiaMedicinaEuropean Continental Ancestry GroupPopulationNursingHDL-kolesteroliWhite PeopleDIETARY-FAT03 medical and health sciencesSex FactorsAsian Peoplekansanterveysvigilancia de la poblaciónTotal cholesterolHumansCORONARY-HEART-DISEASEmulti-country studyddc:610LDL-kolesteroliTotal cholesteroleducationTriglyceridesMETAANALYSISAgedINDIVIDUAL DATAScience & Technologyblood lipidsbusiness.industryCholesterolOmvårdnadblood lipidCholesterol HDLEcological studynutritional and metabolic diseasesCholesterol LDLUnited StatesFolkhälsovetenskap global hälsa socialmedicin och epidemiologiAdult; Age Factors; Aged; Asia; Asian Continental Ancestry Group; Canada; Cholesterol/blood; Cholesterol HDL; Cholesterol LDL; Europe; European Continental Ancestry Group; Female; Humans; Lipids/blood; Male; Middle Aged; Population Surveillance/methods; Sex Factors; Triglycerides/blood; United States; HDL cholesterol; LDL cholesterol; Total cholesterol; blood lipids; multi-country studychemistryWORLDWIDE TRENDSMulti-country study ; Total cholesterol ; HDL cholesterol ; LDL cholesterol ; Blood lipidsgrupo de ascendencia continental europeabusinessHIGH-DENSITY-LIPOPROTEIN[SDV.MHEP]Life Sciences [q-bio]/Human health and pathologyDemographyLipoprotein
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A simulation study for assessing the impact of energy storage systems for Fast Reserve with additional synthetic inertia control on the Continental E…

2022

This article shows the results of a simulation study on the application of battery storage systems for providing fast frequency regulation (the so-named Fast Reserve) with additional synthetic inertia control. The aim of the study is to assess the impact of the extension of the regulation provided by the FRUs to all the Continental Europe synchronous grid, with the same power proportions of the first Italian FRU auction. The simulations are conducted in two different scenarios: a base one related to 2020 and a future one related to 2040 and based on ENTSO-E projections for load and generation. The results show that, for the reference incident of 3000 MW, the frequency quality parameters in …

Settore ING-IND/33 - Sistemi Elettrici Per L'EnergiaBattery storage Continental Europe Fast Reserve Unit Primary frequency regulation Synthetic inertiaRenewable Energy Sustainability and the EnvironmentEnergy Engineering and Power TechnologySustainable Energy Technologies and Assessments
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Synthetic Inertia Impact on Inter-Area Oscillations of the Continental Europe Power System

2020

The overall kinetic energy reduction due to increasing share of converter-interfaced generation (CIG) has been investigated so far by several works for systems of different types and sizes. The so called synthetic inertia is one of the most common and reviewed solutions to the issue of system inertia reduction. The paper investigates the effects of synthetic inertia as frequency service provided by the CIG sources for the Continental Europe (CE) synchronous area using a detailed large scale dynamic model. The model - provided in the basic form by the System Protection & Dynamics (SP&D) group of the ENTSOE - is properly developed substituting a determined amount of synchronous machin…

converter-interfaced generationdynamic analysiFrequency responseinter-area oscillationComputer scienceContinental Europe020209 energymedia_common.quotation_subjectModal analysisComputationAutomatic frequency control02 engineering and technologyInertiaPower (physics)Settore ING-IND/33 - Sistemi Elettrici Per L'EnergiaElectric power systemfrequency controlControl theory0202 electrical engineering electronic engineering information engineeringsynthetic inertiaReduction (mathematics)media_common2020 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe)
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Impact of Converter-Interfaced Generation to the Frequency Response of the European Power System

2019

The increase of converter-interfaced generation (CIG) typically related to renewable energy sources is progressively causing a significant change of power systems operation. The curtailment of synchronous generation with the consequent reduction of the overall kinetic energy is one of the related issues, currently under investigation in academia and industry. The work considers the problem of overall inertia reduction from a large-scale point of view, analyzing the impact of different CIG integration levels to the frequency response of the power system of Continental Europe. The kinetic energy is evaluated for each country of the synchronous area, and the system is modified substituting con…

dynamic analysiSettore ING-IND/33 - Sistemi Elettrici Per L'Energialow inertiaContinental Europefrequency responseConverter-interfaced generation
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Impact of the high share of converter-interfaced generation on electromechanical oscillations in Continental Europe power system

2020

This study investigates the effects of converter-interfaced generation integration on the dynamic response of the power system of Continental Europe. The system is analysed with a large-scale dynamic model of the entire synchronous area, considering different instantaneous integration percentages of converter-interfaced generation across the system. The study focuses on the reduction of the overall available kinetic energy and the impact on frequency dynamics and system oscillations. The dynamic model of the system originally provided by ENTSO-E is further developed according to a specific methodology, replacing a determined amount of synchronous generation and introducing a corresponding a…

dynamic analysilow inertiaRenewable Energy Sustainability and the EnvironmentComputer scienceGeneration loss020209 energyModal analysisContinental Europe020208 electrical & electronic engineeringConverter-interfaced generation02 engineering and technologySettore ING-IND/33 - Sistemi Elettrici Per L'EnergiaElectric power systemfrequency controlWestern europe0202 electrical engineering electronic engineering information engineeringElectronic engineeringReduction (mathematics)
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