Imirasire y'izuba: Anti-Reverse Diode na Bypass Diode

Mu mirasire y'izuba kare kare, diode nigikoresho gisanzwe.Dode ikoreshwa cyane ni silicon ikosora diode.Mugihe uhitamo, usige marike mubisobanuro kugirango wirinde gusenyuka.Mubisanzwe, reaction ya revers ya breakdown yamashanyarazi hamwe nigikorwa kinini kigomba kuba kirenze inshuro ebyiri imbaraga nini nini nini ikora.Diode igabanijwemo ibyiciro bibiri muri sisitemu yo kubyara amashanyarazi.

1. Anti-Reverse (Anti-Backflow) Diode

Imwe mu mikorere yaanti-revers diodeni ukurinda ikigezweho cya bateri kuva mumirasire y'izuba cyangwa umurongo wa kare kugirango uhindurwe kuri module cyangwa kare ya kare iyo idatanga amashanyarazi, idakoresha ingufu gusa, ahubwo inatera module cyangwa umurongo wa kare gushyushya cyangwa no kwangirika;Igikorwa cya kabiri ni ukurinda gutembera kwubu hagati yamashami ya kare ya array murwego rwa bateri.Ibi ni ukubera ko voltage isohoka ya buri shami murukurikirane idashobora kunganya rwose, burigihe hariho itandukaniro hagati yumuriro mwinshi na muto wa buri shami, cyangwa ibisohoka voltage yishami bigabanuka kubera ikosa cyangwa igicucu cyigicucu, kandi numuyoboro wamashanyarazi mwinshi uzatemba kumashami ya voltage ntoya, cyangwa nibisohoka voltage yumurongo wa kare wuzuye bizagabanuka.Iyi phenomenon irashobora kwirindwa muguhuza anti rezo yo kwishyuza ikurikiranye muri buri shami.
Muri sisitemu yigenga yo kubyara amashanyarazi, amashanyarazi amwe n'amwe yagenzuwe na diode yo kurwanya anti-revers, ni ukuvuga, mugihe mugenzuzi afite imikorere yo kurwanya anti-revers, ibyasohotse ntibikenewe guhuzwa na diode.
Diode irwanya-rever ifite umuvuduko wa voltage ugabanuka, kandi hazabaho gukoresha ingufu runaka mugihe uhujwe murukurikirane.Umuvuduko wa voltage ya silicon rectifier diode isanzwe ikoreshwa ni nka 0.7V, kandi umuyoboro mwinshi urashobora kugera kuri 1 ~ 20.3V, ariko kwihanganira voltage kandi Imbaraga ni ntoya, ikwiranye nimbaraga nke.

PV anti-reverse diode igomba kuba ifite ibintu bikurikira:

1. Umuvuduko mwinshi: muri rusange ugomba kurenga 1500V, kubera ko umurongo ntarengwa wamafoto uzagera cyangwa urenga 1000V.

2. Gukoresha ingufu nke, ni ukuvuga, kuri-kurwanya (kuri impedance kuri leta ni ntoya ishoboka, ubusanzwe iri munsi ya 0.8 ~ 0.9V): Kubera ko sisitemu ya Photovoltaque ikeneye kugumana imikorere myiza ya sisitemu yose, imbaraga gukoresha ikoreshwa rya anti-revers ya diode mumasanduku ikomatanya igomba kuba nto ishoboka.

3. Ubushobozi bwiza bwo gukwirakwiza ubushyuhe (birasabwa kurwanya ubushyuhe buke no gukwirakwiza ubushyuhe bwiza): Kubera ko aho akazi gakorerwa agasanduku ka fotokoltaque gasanzwe gakennye, diode anti-revers ikeneye kugira ubushobozi bwiza bwo gukwirakwiza ubushyuhe, kandi mubisanzwe nayo igomba tekereza ku bihe by'ikirere nka Gobi n'ibibaya.

2. Bypass Diode

Iyo hari imirasire y'izuba myinshi ihujwe murukurikirane kugirango ikore ingirabuzimafatizo ya kare cyangwa ishami rya kare kare, umurongo umwe (cyangwa 2 ~ 3) ugomba guhuzwa muburyo bubangikanye nibintu byiza kandi bibi biva muri buri bateri Umwanya.Diode ihujwe kuburinganire kumpande zombi zigizwe na bypass diode.
Imikorere ya bypass ya diode nugukumira ikintu runaka murwego rwa kare cyangwa igice runaka cyibigize igicucu cyangwa imikorere idahwitse kugirango ihagarike amashanyarazi.Kubogama kwimbere bizashyirwaho kumpande zombi zigizwe na diode kugirango ikore diode.Ikurikiranyanyuguti ikora ikuraho ibice bitari byo kandi ikanyura muri diode, itagira ingaruka kumashanyarazi yibindi bice bisanzwe.Muri icyo gihe, irinda kandi ibice byasimbuwe kwangizwa no kubogama kwimbere cyangwa gushyuha bitewe n "ingaruka zishyushye".
Bypass diode isanzwe ishyirwaho muburyo butandukanye.Ukurikije imbaraga zibigize hamwe numubare wa bateri ya selile, hashyizweho diode 1 kugeza kuri 3.
Bypass diode ntabwo isabwa mubihe byose.Iyo ibice bikoreshwa byonyine cyangwa muburyo bubangikanye, ntibikeneye guhuzwa na diode.Mubihe aho umubare wibigize murukurikirane ari muto kandi ibidukikije bikora nibyiza, birashoboka nanone gutekereza kudakoresha diode ya bypass.

Ihame ryumuzenguruko wa Diode

Igikorwa gikunze kugaragara cyane cya diode ni ukwemerera gusa ikigezweho kunyura mucyerekezo kimwe (bita kubogama imbere) no guhagarika icyerekezo (bita bias bias).

Iyo habaye imbaraga zo kubogama imbere, kubangikanya kumashanyarazi yo hanze hamwe numuriro wamashanyarazi wiyubashye byongera ikwirakwizwa ryikwirakwizwa ryabatwara kandi bigatera imbere yimbere (ni ukuvuga impamvu yo gutwara amashanyarazi).

Iyo habaye ingufu zinyuranye zibogamye, umurima wamashanyarazi wo hanze hamwe numurima wamashanyarazi wiyubashye urushaho gushimangirwa, ugakora ibyuma byuzuye byuzuye I0 bidafite aho bihuriye numuvuduko ukabije wa voltage mumurongo runaka wa voltage (iyi niyo mpamvu kubitagenda neza).

Iyo hari voltage ihindagurika ibogamye hanze, umurima wamashanyarazi wo hanze hamwe numurima wamashanyarazi wiyubashye urushaho gushimangirwa, ugakora ibyuzuye byuzuye byuzuye I0 bitigengwa nigiciro cya bias voltage mumurongo runaka wa voltage.