Ikoreshwa rya Anti-reverse Ammeters muri sisitemu yizuba

Hamwe niterambere ryihuse ryinganda zifotora, ubushobozi bwashyizweho buriyongera.Mu turere tumwe na tumwe, ubushobozi bwashyizweho buruzuye, kandi imirasire y'izuba nshya ntishobora kugurisha amashanyarazi kumurongo.Isosiyete ikora amashanyarazi irasaba iyo gride ihujweSisitemu ya PVyubatswe mugihe kizaza kuba sisitemu yo kubyara amashanyarazi.

Counterflow ni iki?

Umuyoboro uhinduka ni iki?Muri sisitemu ya PV, ingufu z'amashanyarazi zitangwa muri rusange kuva kuri gride kugeza kumuzigo, ibyo bita imbere bigezweho.Iyo sisitemu ya PV yashizwemo, niba imbaraga za sisitemu ya PV iruta imbaraga zumutwaro waho, imbaraga zidakoreshwa zoherejwe kuri gride.Nkuko icyerekezo cyubu kinyuranye nicyerekezo gisanzwe, ibi byitwa 'revers current'.Muri gride ihujwe na metero ebyiri, imbaraga zimbere nimbaraga zitangwa kuva kuri gride kugeza kumuzigo, naho imbaraga zinyuranye nimbaraga zitangwa kuva sisitemu ya PV kuri gride.Sisitemu ya PV isubizwa inyuma bivuze ko imbaraga zitangwa na PV zishobora gukoreshwa gusa nu mutwaro waho kandi ntushobora koherezwa kuri gride.

Iyo PV inverter ihinduye ingingo za DC zakozwe na modules ya PV mumashanyarazi ya AC, hariho ibice bya DC nibihuza, ibyiciro bitatu bitaringaniza hamwe nubudashidikanywaho mubisohoka.Iyo ingufu zabyaye zigaburiwe muri gride rusange, bizatera umwanda mubi kuri gride, bishobora gutera byoroshye ingufu za gride guhindagurika no guhindagurika.Niba hari amasoko menshi yamashanyarazi agaburira ingufu muri gride, ubwiza bwumurongo wa gride buzangirika cyane.Kubwibyo, ubu bwoko bwamashanyarazi yerekana amashanyarazi bigomba kuba bifite ibikoresho byokwirinda byubu kugirango birinde kubaho kwinyuma.

Nigute ushobora guhinduranya umuyaga?

Kurwanyaihame ry'akazi rigezweho: Shyiramo anKurwanyametero ya none cyangwa sensor igezweho kuri gride ihuza.Iyo ibonye urujya n'uruza kuri gride, yohereza ikimenyetso kuri inverter ikoresheje itumanaho 485, kandi inverter igabanya imbaraga zisohoka kugeza igihe ibyasohotse bisohoka ari zeru.Ibi biratahuraKurwanyaimikorere ya none.Ukurikije urwego rutandukanye rwa voltage ya sisitemu, sisitemu ya PV irashobora kugabanywamo icyiciro kimweKurwanyasisitemu y'ubu hamwe n'ibyiciro bitatuKurwanyaSisitemu y'ubu.

Uburyo bwo guhitamo anKurwanyametero yubwenge?

Iyo ingufu za PV zirenze izisabwa umutwaro, imbaraga zinyuma zibyara.Dukeneye metero kugirango tumenye kandi tumenye ingufu ziva muri inverter, hanyuma metero yohereze ikimenyetso binyuze mumatumanaho ya RS485 kugirango duhuze namakuru ya inverter kugirango tugenzure imbaraga zisohoka za inverter kugirango duhuze ingufu zisohoka nimbaraga zamashanyarazi.

Ukuri: Hitamo metero yubwenge ipima neza imikoreshereze myiza yamashanyarazi.Byakagombye kuba byukuri kugirango hishyurwe neza kandi bikurikiranwe.

Guhuza: Reba neza ko metero yubwenge ijyanye na sisitemu y'amashanyarazi n'ibisabwa by'ingirakamaro.Igomba gukorana neza nibikorwa remezo bihari kandi ikabasha guhuza na sisitemu yo gupima ibikorwa.

Porotokole y'itumanaho: Menya neza ko metero yubwenge ishyigikira protocole yitumanaho ihujwe numuyoboro wingenzi.Porotokole isanzwe ni Modbus, DLMS / COSEM na Zigbee.

Gucunga amakuru: Reba ubushobozi bwo gucunga amakuru ya metero yubwenge.Igomba kugira umwanya uhagije wo kubika hamwe nubushobozi bwo kohereza amakuru muri sisitemu ikomatanyirijwe yo kwishura no gusesengura.Shakisha metero zitanga amakuru yihishe hamwe no kohereza umutekano.