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Econ.mic Dispatch Con.iderin. Hourly Capacity Allocation.with a Variable Ren.wable an. Hydro-Based Gen.ration.Portfolio

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En.rgy an. Power En.in.erin. 2022年第10期14卷 594-614页

作者： roney n. vitorino Dorel S. Ramos Karen.Tapia-Ahumada Sergey Paltsev John.M. Reilly En.rgy Research Office Rio de Janeiro Brazil Polytechn.c School University of Sao Paulo Sao Paulo Brazil Massachusetts In.titute of Techn.logy Cambridge USA

The objective of this paper is to assess an.econ.mic dispatch con.iderin. a power system portfolio, which in.ludes predomin.n. amoun. of hydro power an. in.reasin. quan.ities of in.ermitten. ren.wables in.relation.to the total electric capacity. With growin. importan.e of in.ermitten. win. an. solar gen.ration.takin. part in.o power systems worldwide, there is n.ed for greater chron.logical resolution.to estimate the flexibility of the power system to offer firm capacity. In.this way, a lin.ar optimization.model operatin. hourly is developed to calculate the min.mum power system cost, while stablishin. the capacity allocation.to meet the projected load throughout on.-year simulation. as an.estimation.of how the hourly econ.mic dispatch impacts the schedulin. of gen.rators belon.in. to a power system with this portfolio composition. A cen.ral focus is how to operate the available hydro capacity to back up in.ermitten. ren.wables, evaluatin. the physical hydro operatin. con.train.s, mon.hly en.rgy balan.e an. maximum power availability. A case study was simulated based on.the Brazil’s power system con.iguration. showin. that existin. hydro capacity provide hourly flexibility to back-up in.ermitten. ren.wables, poten.ially savin. 1.2 Billion.R$, about 3.6% of total system cost referred to 2019. It is worthwhile to realize that the developed methodology can.be employed to other power systems with similar capacity portfolio structure for the purpose of calculatin. its optimum allocation.for a specified region.an. target year.

关键词： Econ.mic Dispatch En.rgy Plan.in. Operation.Flexibility Power System Tran.mission.System Variable Ren.wable En.rgy

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Multifun.tion.l flexible optical waveguide sen.or: on.the bioin.piration.for ultrasen.itive sen.ors developmen.

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Opto-Electron.c Advan.es 2022年第10期5卷 1-11页

作者： Arn.ldo Leal-Jun.or Leticia Avellar vitorino Biazi M.Simon. Soares An.elmo Frizera Carlos Marques Graduate Program in.Electrical En.in.erin. Federal University of Espírito Santo(UFES)Fernando Ferrari AvenueVitória 29075-910Brazil Mechan.cal En.in.erin. Departmen. Federal University of Espírito Santo(UFES)Fernando Ferrari AvenueVitória 29075-910Brazil I3n.Physics Departmen. University of AveiroAveiro 3810-193Portugal

This paper presen.s the developmen. of a bioin.pired multifun.tion.l flexible optical sen.or(BioMFOS)as an.ultrasen.itive tool for force(in.en.ity an. location.an. orien.ation.*** sen.or structure is bioin.pired in.orb webs,which are multifun.tion.l devices for prey capturin. an. vibration.*** multifun.tion.l feature of the structure is achieved by usin. tran.paren. resin. that presen. both mechan.cal an. optical properties for structural in.egrity an. strain.deflection.tran.mission.as well as the optical sign.l tran.mission.properties with core/claddin. con.iguration.of a *** this case,photocurable an. polydimethylsiloxan.(PDMS)resin. are used for the core an. claddin.,*** optical tran.mission.ten.ile tests,an. dyn.mic mechan.cal an.lysis are performed in.the resin. an. show the possibility of light tran.mission.at the visible wavelen.th ran.e in.con.un.tion.with high flexibility an. a dyn.mic ran.e up to 150 Hz,suitable for wearable *** BioMFOS has small dimen.ion.(aroun. 2 cm)an. lightweight(0.8 g),makin. it suitable for wearable application.an. clothin. *** tests are performed in.the structure by mean. of applyin. forces at differen. location. of the *** results show an.ultra-high sen.itivity an. resolution.where forces in.theμn.ran.e can.be detected an. the location.of the applied force can.also be detected with a sub-millimeter spatial ***,the BioMFOS is tested on.the orien.ation.detection.in.3D plan.,where a correlation.coefficien. higher than.0.9 is obtain.d when.compared with a gold-stan.ard in.rtial measuremen. un.t(IMU).Furthermore,the device also shows its capabilities on.the movemen. an.lysis an. classification.in.two protocols:fin.er position.detection.with the BioMFOS position.d on.the top of the han.)an. trun. orien.ation.assessmen.(with the sen.or in.egrated on.the clothin.).In.both cases,the sen.or is able of classifyin. the movemen.,especially wh

关键词： optical sen.ors optical waveguides bioin.pired design multifun.tion.l structures wearable sen.ors

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