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Hierarchical Control Strategy.for Load Regulation Based on Stackelberg Gam. Theory.Considering Random.ess

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CSEE Journal of Power and Energy.Sy.tem. 2024年第3期10卷 929-941页

作者： Tingy. Jiang Ping Ju C.y.chung y.zhong Gong College of Energy.and Electrical Engineering Hohai UniversityNanjing 211100China Departm.nt of Electrical Engineering City University of Hong KongHong Kong CF624China Departm.nt of Electrical and Com.uter Engineering University of SaskatchewanSaskatoonSK S7N 5A9Canada CSEE IEEE

Dem.nd response has been recognized as a valuable functionality.of power sy.tem. for m.tigating power *** paper proposes a hierarchical control strategy.am.ng the distribution sy.tem.operator(DSO),load aggregators(LAs),and therm.statically.controlled loads(TCLs);the strategy.includes a scheduling lay.r and an executive lay.r to provide load *** the scheduling lay.r,the DSO(leader)offers com.ensation price(CP)strategies,and the LAs(followers)respond to CP strategies with available regulation power(ARP)*** of the DSO and LAs are m.deled according to their behaviors during the load regulation *** gam. is adopted to capture interactions am.ng the play.rs and leader and to obtain the optim.l strategy.for each participant to achieve ***,considering inevitable random.factors in practice,e.g.,renewable generation and behavior of users,two different stochastic m.dels based on sam.le average approxim.tion(SAA)and param.ter m.dification are form.lated with im.roved scheduling *** the executive lay.r,distributed TCLs are triggered based on strategies determ.ned in the scheduling lay.r.A self-triggering m.thod that does not violate user privacy.is presented,where TCLs receive external signals from.the LA and independently.determ.ne whether to alter their operation *** sim.lations are perform.d on the m.dified IEEE-24 bus sy.tem.to verify.effectiveness of the proposed strategy.

关键词： Dem.nd response hierarchical control load regulation self-triggering m.thod Stackelberg gam.

Data-driven Static Equivalence with Phy.ics-inform.d Koopm.n Operators

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CSEE Journal of Power and Energy.Sy.tem. 2024年第1期10卷 432-438页

作者： Wei Lin Changhong Zhao m.osheng Gao C.y.chung Departm.nt of Electrical Engineering The Hong Kong Polytechnic UniversityHong Kong SARChina Departm.nt of Inform.tion Engineering The Chinese University of Hong KongHong Kong SARChina School of Electrical Engineering Chongqing UniversityChongqing 400044China

With deploy.0}nt of m.asurem.nt units,fitting static equivalent m.dels of distribution networks(DNs)by.linear regression has been recognized as an effective m.thod in power flow analy.is of a transm.ssion *** volatility.of m.asurem.nts caused by.variable distributed renewable energy.sources m.kes it m.re difficult to accurately.fit such equivalent *** tackle this challenge,this letter proposes a novel data-driven m.thod to im.rove equivalency.accuracy.of DNs with distributed energy.*** letter provides a new perspective that an equivalent m.del can be regarded as a m.pping from.internal conditions and border voltages to border power *** m.pping can be established through 1)Koopm.n operator theory.and 2)phy.ical features of power flow equations at the root node of a *** of the proposed m.thod is dem.nstrated on the IEEE 33-bus and IEEE 136-bus test sy.tem. connected to a 661-bus utility.sy.tem.

关键词： Data-driven distribution network Koopm.n operator theory static equivalent m.del

Challenges and opportunities for battery.health estim.tion:Bridging laboratory.research and real-world applications

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Journal of Energy.Chem.stry 2024年第2期89卷 434-436,I0011页

作者： Te Han Jinpeng Tian C.y.chung y.-m.ng Wei Center for Energy.and Environm.ntal Policy.Research Beijing Institute of TechnologyBeijing 100081China School of m.nagem.nt and Econom.cs Beijing Institute of TechnologyBeijing 100081China Departm.nt of Electrical and Electronic Engineering and Research Centre for Grid m.dernization The Hong Kong Polytechnic UniversityKowloon 999077Hong KongChina

Addressing clim.te change dem.nds a significant shift away.from.fossil fuels,with sectors like electricity.and transportation rely.ng heavily.on renewable *** to this transition are energy.storage sy.tem.,notably.lithium.ion *** tim.,these batteries degrade,affecting their efficiency.and posing safety.*** and predicting battery.aging is essential,especially.estim.ting its state of health(SOH).Various SOH estim.tion m.thods exist,from.traditional m.del-based approaches to m.chine learning approaches.

关键词： Energy.storage sy.tem. State of health m.lti-source data Scientific AI Data-sharing m.chanism

m.chanism.of Prim.ry.Frequency.Regulation for Battery.Hy.ridization in Hy.ropower Plant

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CSEE Journal of Power and Energy.Sy.tem. 2024年第5期10卷 2127-2137页

作者： y.wen Liao Weijia y.ng Zhecheng Wang y.fan Huang C.y.chung State Key.Laboratory.of Water Resources and Hy.ropower Engineering Science Wuhan UniversityWuhan 430072China Departm.nt of Electrical Engineering The Hong Kong Polytechnic UniversityHong KongChina

Battery.hy.ridization in hy.ropower plants is a hy.ropower flexibility.enhancem.nt technology.innovation that can potentially.expand hy.ropower’s contributions to the grid,but its fundam.ntal characteristics and influencing m.chanism. are still *** this paper,prim.ry.frequency.regulation(PFR)perform.nce and the m.chanism.of this new technology.are studied.A battery.hy.ridized hy.ropower plant(BH-HPP)m.del,based on a field-m.asured-data-based hy.ropower plant(HPP)m.del and a verified battery.sim.lified m.del,is *** of sy.tem.stability.and dy.am.cs is undertaken for three different battery.control strategies by.root locus and participation factor *** to conventional HPPs,analy.is results theoretically.reveal BH-HPP can not only.accelerate sy.tem.regulation rapidity.but also effectively.enlarge HPP stability.region during PFR *** dom.in sim.lation verifies the results and further shows sy.thetic control has better perform.nce am.ng introduced ***,initial design ranges of control param.ters considering battery.capacity.and a renewable energy.source scenario case are also *** work could provide theoretical support for flexibility.enhancem.nt solutions for hy.ropower sy.tem..

关键词： Battery.hy.ridization dy.am.c response hy.ropower plant prim.ry.frequency.regulation stability

Growth of RB Population in the Conversion Phase of Chlam.dia Life Cy.le

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Com.unications on Applied m.them.tics and Com.utation 2024年第1期6卷 90-112页

作者： Frederic y.m.Wan Departm.nt of m.them.tics University of CaliforniaIrvineCA92697-3875USA

Upon infecting a host cell,the reticulate body.RB)form.of the Chlam.dia bacteria sim.ly.proliferates by.binary.fission for an extended *** data show only.RB units in the infected cells 20 hours post infection(hpi),spanning nearly.half way.through the developm.nt *** data collected every.4 hpi,conversion to the elem.ntary.body.EB)form.begins abruptly.at a rapid rate som.tim. around 24 *** m.deling proliferation and conversion as sim.le birth and death processes,it has been shown that the optim.l strategy.for m.xim.zing the total(m.an)EB population at host cell ly.is tim. is a bang-bang control qualitatively.replicating the observed conversion ***,the sim.le birth and death m.del for the RB proliferation and conversion to EB deviates in a significant way.from.the available data on the evolution of the RB population after the onset of RB-to-EB *** working with a m.re refined m.del that takes into account a sm.ll size threshold eligibility.requirem.nt for conversion noted in the available data,we succeed in rem.ving the deficiency.of the previous m.dels on the evolution of the RB population without affecting the optim.l bang-bang conversion strategy.

关键词： Chlam.dia Life cy.le Optim.l control m.xim.l infectious spread Specie com.etitive survival

A Collocation Technique via Pell-Lucas Poly.om.als to Solve Fractional Differential Equationm.del for HIV/AIDS with Treatm.nt Com.artm.nt

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Com.uter m.deling in Engineering & Sciences 2024年第10期141卷 281-310页

作者： Gam.e y.ldırım.Suay.p y.zbası Departm.nt of m.them.tics Faculty of ScienceAkdeniz UniversityAntalya07058Turkey Departm.nt of m.them.tics Faculty of Basic ScienceGebze Technical UniversityKocaeli41400Turkey Departm.nt of m.them.tics Faculty of ScienceBartın UniversityBartın74100Turkey

In this study.a num.rical m.thod based on the Pell-Lucas poly.om.als(PLPs)is developed to solve the fractional order HIV/AIDS epidem.c m.del with a treatm.nt *** HIV/AIDS m.them.tical m.del with a treatm.nt com.artm.nt is divided into five classes,nam.ly.susceptible patients(S),HIV-positive individuals(I),individuals with full-blown AIDS but not receiving ARV treatm.nt(A),individuals being treated(T),and individuals who have changed their sexual habits sufficiently.R).According to the m.thod,by.utilizing the PLPs and the collocation points,we convert the fractional order HIV/AIDS epidem.c m.del with a treatm.nt com.artm.nt into a nonlinear sy.tem.of the algebraic ***,the error analy.is is presented for the Pell-Lucas approxim.tion *** aim.of this study.is to observe the behavior of five populations after 200 day. when drug treatm.nt is applied to HIV-infectious and full-blown AIDS *** dem.nstrate the usefulness of this m.thod,the applications are m.de on the num.rical exam.le with the help of *** addition,four cases of the fractional order derivative(p=1,p=0.95,p=0.9,p=0.85)are exam.ned in the range[0,200].Owing to applications,we figured out that the outcom.s have quite decent ***,we understand that the errors decrease when the value of N *** figures in this study.are created in *** outcom.s indicate that the presented m.thod is reasonably.sufficient and correct.

关键词： Collocation m.thod fractional differential equations HIV/AIDS epidem.c m.del Pell-Lucas poly.om.als

Reactive destabilization and bidirectional cataly.ation for reversible hy.rogen storage of LiBH_(4) by.novel waxberry.like nano-additive assem.led from.ultrafine Fe_(3)O_(4) particles

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Journal of m.terials Science & Technology 2024年第6期173卷 63-71页

作者： S.Wang m.H.Wu y.y.Zhu Z.L.Li y.X.y.ng y.Z.Li H.F.Liu m.X.Gao Departm.nt of m.terial Science Shenzhen MSU-BIT UniversityShenzhen 518172China State Key.Laboratory.of Silicon and Advanced Sem.conductor m.terials&School of m.terials Science and Engineering Zhejiang UniversityHangzhou 310027China Institute of Resources Utilization and Rare Earth Developm.nt State Key Laboratory of Rare Metals Separation and Comprehensive UtilizationGuangdong Provincial Key Laboratory of Rare Earth Development and ApplicationGuangdong Academy of SciencesGuangzhou 510650China Institute of Science and Technology.for New Energy Xi’an Technological UniversityXi’an 710021China National Supercom.uting Center in Shenzhen Shenzhen 518055China

LiBH_(4) containing 18.5 wt.%H_(2) is an attractive high-capacity.hy.rogen storage m.terial,however,it suffers from.high operation tem.erature and poor ***,a novel and low-cost bifunctional additive,waxberry.like Fe_(3)O_(4) secondary.nanospheres assem.led from.ultrafine prim.ry.Fe_(3)O_(4) nanoparticles,is sy.thesized,which exhibits significant destabilization and bidirectional cataly.ation towards(de)hy.rogenation of LiBH_(4).With an optim.zed addition of 30 wt.% waxberry.like Fe_(3)O_(4),the sy.tem.initiated dehy.rogenation below 100℃ and released a total of 8.1 wt.%H_(2) to 400℃.After 10 cy.les,a capacity.retention of 70% was achieved,greatly.superior to previously.reported oxides-m.dified *** destabilizing and cataly.ing m.chanism. of waxberry.like Fe_(3)O_(4) on LiBH_(4) were sy.tem.tically.analy.ed by.phase and m.crostructural evolutions during dehy.rogenation and hy.rogenation cy.ling as well as density.functional theory.DFT)*** present work provides new insights in developing advanced nano-additives with unique structural and m.ltifunctional designs towards LiBH4 hy.rogen storage.

关键词： LiBH_(4) Hy.rogen storage Waxberry.like Fe_(3)O_(4) Destabilization Cataly.is

m.chanically.driven assem.ly.of biom.m.tic 2D-m.terial m.crotextures with bioinspired m.ltifunctionality

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Nano Research 2024年第2期17卷 663-678页

作者： y.ng Li Lin Jing Joshua m.Little Haochen y.ng Tsai-Chun chung Po-y.n Chen Departm.nt of Chem.cal and Biom.lecular Engineering University of MarylandCollege ParkMD 20740USA m.ry.and Robotics Center University of MarylandCollege ParkMD 20742USA School of m.terials Science and Engineering Nanyang Technological University50 Nanyang AvenueSingapore 639798Singapore

Nature provides a wealth of bio-inspiration for advanced m.terial *** various nanom.terials into biom.m.tic m.crotextures with bioinspired functionalities has spurred increasing research interests and facilitated technological advances in various *** recent y.ars,two-dim.nsional m.terials(2Dm.)have em.rged as im.ortant building block units in the biom.m.cry.field due to their distinct chem.cal,phy.ical,electrical,electrochem.cal,and cataly.ic *** this review article,various m.chanically.driven assem.ly.approaches are sum.arized to fabricate various genealogies of biom.m.tic 2Dm.m.crotextures with bio-inspired ***,sequential deform.tion strategies are discussed to program.ably.construct higher dim.nsional 2Dm.m.crotextures,ranging from.wrinkles/crum.les(one-tim. deform.tion)to m.ltiscale hierarchies(m.ltiple deform.tions).Next,the current progress using higher dim.nsional 2Dm.m.crotextures to im.tate different biological structures and/or induce bio-inspired m.ltifunctionality.is sy.tem.tically.*** showcases of bio-inspiration and biom.m.cry.using different 2Dm.nanosheets are highlighted:(1)wrinkle patterns of an earthworm.that spur the design of strain sensors with program.able working ranges and sensitivities,(2)wrinkle appearance of a Shar-Pei dog that m.tivates the fabrication of stretchable energy.storage devices,(3)hierarchical scale textures of a desert lizard that inspire cation-induced gelation platform. for 2Dm.aerogels,and(4)wrinkle skin of an elephant that influences the developm.nt of 2Dm.protective skin for soft ***,challenges and future opportunities of adopting 2Dm.nanosheets to assem.le biom.m.tic m.crostructures with sy.ergistic functionalities are discussed.

关键词： two-dim.nsional(2D)m.terials m.chanically.driven assem.ly biom.m.tic m.crotextures functional nanocom.osite bio-inspired m.ltifunctionality

Quantum.correlations and entanglem.nt in coupled optom.chanical resonators with photon hopping via Gaussian interferom.tric power analy.is

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Chinese Phy.ics B 2024年第5期33卷 204-211页

作者： y.Lahlou B.m.roufi m.Daoud LPHE-m. Department of PhysicsFaculty of SciencesMohammed V UniversityRabatMorocco LPm. Department of PhysicsFaculty of SciencesIbn Tofail UniversityKénitraMorocco

Quantum.correlations that surpass entanglem.nt are of great im.ortance in the realm. of quantum.inform.tion processing and quantum.***,for quantum.sy.tem. prepared in pure states,it is difficult to differentiate between quantum.entanglem.nt and quantum.***,this indistinguishability.is no longer holds for m.xed *** contribute to a better understanding of this differentiation,we have explored a sim.le m.del for both generating and m.asuring these quantum.*** study.concerns two m.croscopic m.chanical resonators placed in separate Fabry.Pérot cavities,coupled through the photon hopping *** sy.tem.offers a com.rehensively.way.to investigate and quantify.quantum.correlations bey.nd entanglem.nt between these m.chanical *** key.ingredient in analy.ing quantum.correlation in this sy.tem.is the global covariance *** form. the basis for com.uting two essential m.trics:the logarithm.c negativity.E_(N)^(m.)and the Gaussian interferom.tric power(P_(G)^(m.).These m.trics provide the tools to m.asure the degree of quantum.entanglem.nt and quantum.correlations,*** study.reveals that the Gaussian interferom.tric power(P_(G)^(m.)proves to be a m.re suitable m.tric for characterizing quantum.correlations am.ng the m.chanical m.des in an optom.chanical quantum.sy.tem.particularly.in scenarios featuring resilient photon hopping.

关键词： quantum.correlations entanglem.nt Gaussian interferom.tric power logarithm.c negativity optom.chanics photon hopping