Mune photovoltaic system, magetsi anogadzirwa anoyerera kubva kune photovoltaic modules kusvika kune inverter, iyo inoshandura yakananga ikozvino kune alternating ikozvino.Iri simba reAC rinobva rashandiswa kupa simba mitoro senge midziyo kana mwenje kana kudzoserwa mugedhi.Zvisinei, mune dzimwe nguva, kuyerera kwemagetsi kunogona kuchinjwa, kunyanya kana photovoltaic system inobudisa magetsi akawanda kupfuura mutoro unoda.Muchiitiko ichi, kana iyo PV module ichiri kugadzira simba uye mutoro unoshandisa simba shoma kana kuti risina simba, panogona kunge kune reverse ikozvino kuyerera kubva pamutoro kudzokera kune grid, zvichikonzera njodzi dzekuchengetedza uye kukuvara kwemidziyo.
Kuti udzivise iyi reverse ikozvino kuyerera, photovoltaic masisitimu akashongedzerwa anti-reverse ikozvino zvishandiso kana maficha.Zvishandiso izvi zvinovimbisa kuti ikozvino inoyerera chete munzira inodiwa, kubva kune photovoltaic module kusvika kumutoro kana grid.Ivo vanodzivirira chero yazvino backflow uye inodzivirira masisitimu nemidziyo kubva kune inogona kukuvara.Nekubatanidza anti-reverse ikozvino mashandiro, PV system vanoshanda vanogona kuve nechokwadi chekushanda kwakachengeteka uye kwakanaka, kubvisa reverse njodzi dzazvino, uye kutevedzera chengetedzo zviyero nemirau.
Nheyo huru yekudzivirira inverter backflow yekuona iyo voltage uye frequency yegidhi remagetsi munguva chaiyo kuona kutonga uye kudzora kweiyo inverter.Idzi dzinotevera nzira dzinoverengeka dzekuona iyo inverter anti-backflow:
Kuonekwa kweDC: Iyo inverter inoona zvakananga kutungamira uye ukuru hwechizvino kuburikidza neyezvino sensor kana ikozvino detector, uye inogadzirisa inogadzirisa simba rekubuda reiyo inverter maererano neruzivo rwakaonekwa.Kana reverse ikozvino mamiriro akaonekwa, iyo inverter ichakurumidza kuderedza kana kumira kupa simba kune grid.
Anti-reverse current device: An anti-reverse current device inowanzova chigadziro chemagetsi chinoona mamiriro ezvinhu ekare uye chinotora matanho akakodzera ekudzora.Kazhinji, mudziyo wekudzivirira wekudzokera kumashure unotarisa voltage uye frequency yegridi uye, kana ichinge yaona kuyerera, pakarepo inogadzirisa simba rekubuda reiyo inverter kana kumisa kuburitsa kwesimba.Chigadzirwa chekudzivirira chekudzokera shure chinogona kushandiswa seimwe module kana chikamu che inverter, iyo inogona kusarudzwa uye kuiswa maererano nezvinodiwa zve inverter.
Zvishandiso zvekuchengetedza magetsi: Zvishandiso zvekuchengetedza magetsi zvinogona kubatsira kugadzirisa inverter's backflow dambudziko.Kana simba rinogadzirwa neiyo inverter richipfuura kudiwa kweiyo grid, iyo yakawandisa simba inogona kuchengetwa mumudziyo wekuchengetedza simba.Zvigadzirwa zvekuchengetedza magetsi zvinogona kuva bhatiri packs, supercapacitors, hydrogen storage devices, etc. Apo grid inoda mamwe simba, simba rekuchengetedza simba rinogona kusunungura simba rakachengetwa uye kuderedza kutsamira pane grid, nokudaro kudzivirira kudzoka shure.
Kucherekedza Voltage uye Frequency: Iyo inverter haingoone ikozvino kuti ione kana reverse iripo iripo asi zvakare inotarisisa iyo grid voltage uye frequency kuti ione anti-reverse ikozvino.Kana iyo inverter inotarisisa kuti grid voltage kana frequency iri kunze kweiyo yakatarwa renji, inoderedza kana kumisa kuendesa simba kune grid kudzivirira reverse currents.
Izvo zvinofanirwa kucherechedzwa kuti iyo chaiyo nzira yekuona inverter backflow kudzivirira ichasiyana zvichienderana nemhando uye muenzaniso weiyo inverter.Naizvozvo, zvinokurudzirwa kuti kana uchishandisa inverter, verenga bhuku rekushandisa uye bhuku rekushandisa nekungwarira kuti unzwisise chaiyo yekuzadzikiswa uye nzira yekushanda yeiyo anti-reverse ikozvino basa.
Nguva yekutumira: Jul-21-2023