Voltage kuruhande rwa DC ya sisitemu yizuba ryiyongereye kuri 1500v, kandi kuzamura no gushyira mu bikorwa selile 210 bishyiraho ibisabwa byinshi kumutekano wamashanyarazi yose. Seltage ya sisitemu imaze kwiyongera, itera ibibazo kubasuhuza n'umutekano wa sisitemu, kandi byongera ibyago byo gusenya ibihugu, insinge nyinshi. amakosa ajyanye.
Kugirango uhuze nibigize hamwe nabakora ibiki, abakora ingeso zongera kwinjiza umurongo kuva 15a kugeza 20a Mppt kuri bitatu cyangwa byinshi.in Ikibazo cyamakosa, umugozi urashobora kugira ikibazo cyo kuramba. Kugirango ukemure iki kibazo, DC ihinduka imikorere ya "Guhagarika ubwenge DC" byagaragaye nkuko ibihe bisaba.
01 Itandukaniro hagati yo gutoragura gakondo na DC ifite ubwenge DC
Mbere ya byose, guhindura gakondo DC Guhinduka birashobora kumeneka muri iki gihe, nkizina 15a, noneho irashobora kumena uburozi munsi ya 15a no muri rusange bizaranga ubushobozi bwo kwisiga , mubisanzwe ntibishobora guhagarika umuzunguruko.
Itandukaniro rinini riri hagati yo guhinduka hamwe no kumena umuzunguruko ni uko kumena umuzunguruko ufite ubushobozi bwo gucamo ibice ; Kubera ko ikigo kigufi cya DC kuruhande rwa Photovoltaic ubusanzwe ni inshuro 1.2 zubu zipiganwa, zimwe zo gutora cyangwa kwikorera imitwaro cyangwa gufunga kandi zirashobora kandi gucamo ibice bigufi byimpande za DC.
Kugeza ubu, smart dc switch yakoreshejwe na inverter, usibye kwemeza icyemezo cya IEC6947-3 ikemura ikibazo cyumugozi urenze. Mugihe kimwe, smart dc switch ihujwe na dsp yinzogera, kugirango urugendo rwo guhindura ibintu rushobore kandi vuba rukamenya imirimo nko kurengera bikabije hamwe no kurinda umutekano mugufi.
Igishushanyo cyamashanyarazi cya Smart DC
02 Igishushanyo mbonera cyizuba gisaba ko mugihe umubare wimiyoboro yinjiza munsi ya buri Mppt ni ≥3, Kurinda umugozi bigomba gushyirwaho ku ruhande rwa DC Igikorwa no gufata neza kwa Gusimbuza kenshi puse kuruhande rwa DC. Abagenzi bakoresha ubwenge bwa DC ubwenge aho kuba fuse. Mppt irashobora kwinjiza amatsinda 3 yimigozi. Mu bihe bikomeye, hazabaho ingaruka ku matsinda 2 y'imirongo izajya mu matsinda 1 y'imigozi. Muri iki gihe, sction yubwenge dc izafungura DC ifunguye unyuze kure irekurwa no kuyihagarika mugihe. Umuzunguruko kugirango umenye neza amakosa yihuse.
Igishushanyo cya Schematic cya Mppt String Inyuma
Kurekura shunt ni igice cyo gutembera hiyongereyeho ikigo cyitsinda, kandi binyuze mu bikorwa nkibikorwa bya electromagnetic gukurura Akenshi ikoreshwa muburyo bwa kure-off igenzura.Iyo spect dc switch yagizwe intsinzi, DC ihinduka irashobora gukandagira kandi ifunguye ihindagurika rya DC kugirango ihagarike RSC yo guhindura imizungu.
Kubwurukundo ukoresheje imikorere yo kurinda Urugendo, ni ngombwa mbere kugirango umenye neza ko umuzenguruko ugenzura wa SPOL ubonye imbaraga zigenzura Urugendo rwumuzunguruko wumukinnyi wingenzi urashobora kwizerwa.
03 Gusaba ibyifuzo bya DC ubwenge dc
Nkumutekano wa DC Photovoltaic buhoro buhoro, imikorere yumutekano nka AFCO na RSD yavuzwe cyane.SMar DC ingenzi cyane. Iyo ikosa ribaye, Smart DC switch irashobora gukoresha neza kugenzura kure na rusange kugenzura logique ya SMARCH. Nyuma yibikorwa ya AFCI cyangwa RSP, DSP izohereza ikimenyetso cyurugendo kugirango uhite urugendo rwa DC DC kwigunga. Shiraho ikiruhuko cyerekana kugirango umutekano wumuntu ushinzwe kubungabunga. Iyo DC ihindura ibirenze ubu, bizagira ingaruka kumibereho yamashanyarazi. Iyo ukoresheje DC ifite ubwenge DC, kumena gusa ubuzima bwa mashini ya dc switch, irinda neza ubuzima bwamashanyarazi na ARC izimya ubushobozi bwa DC.
Gushyira mu bikorwa DC ifite ubwenge bwa DC nabyo bituma bishoboka "guhagarika" mu buryo bw'ingenzi mu bikoresho byo mu mibereho. Gufunga neza binyuze mubimenyetso bya DSP, gushiraho ingingo yizewe kubungabunga.
04 Incamake
Gushyira mu bikorwa DC ifite ubwenge bwa DC bukemura ikibazo cyo kurinda umutekano, ariko niba imikorere y'urugendo rwa kure bushobora gukoreshwa mu zindi gahunda yo gukwirakwiza no mu rugo kugira ngo hashingiwe ku bikorwa byo kwizerwa no guteza imbere umutekano mu bihe byihutirwa. Ubushobozi bwo guhangana namakosa aracyasaba gusaba no kugenzura ubwenge bwa SMART DC mu nganda.
Igihe cyagenwe: Feb-16-2023