Chifukwa cha zochitika:

(1) Mphamvu yotulutsa gawo kapena chingwe ndi yotsika kuposa mphamvu yocheperako ya inverter.

(2) Polarity yolowetsa ya chingwe imasinthidwa. Chosinthira cholowetsa cha DC sichinatsekedwe.

(3) Chosinthira cholowetsa cha DC sichinatsekeke.

(4) Chimodzi mwa zolumikizira mu chingwe sichikulumikizidwa bwino.

(5) Chigawocho chimakhala chachifupi, chomwe chimachititsa kuti zingwe zina zilephere kugwira ntchito bwino.

Yankho:

Yezerani voteji ya DC ya inverter ndi voteji ya DC ya multimeter, voteji ikakhala yachilendo, voteji yonse ndi kuchuluka kwamagetsi agawo mu chingwe chilichonse. Ngati palibe voteji, yesani ngati DC circuit breaker, terminal block, cable connector, component junction box, etc. ndi zachilendo motsatira. Ngati pali zingwe zingapo, ziduleni padera kuti muyesere munthu payekha. Ngati palibe kulephera kwa zigawo zakunja kapena mizere, zikutanthauza kuti dera la mkati mwa hardware la inverter ndilolakwika, ndipo mukhoza kulankhulana ndi Renac kuti mukonze.

Chifukwa cha zomwe zachitika:

Makamaka chifukwa cholepheretsa gridi ndi yayikulu kwambiri, pomwe mbali ya ogwiritsa ntchito PV yogwiritsa ntchito mphamvu ndi yaying'ono kwambiri, kutulutsa kwamphamvu kumakhala kokwera kwambiri, zomwe zimapangitsa kuti inverter AC mbali yamagetsi yotulutsa ikhale yokwera kwambiri!

Yankho:

(1) Wonjezerani waya wa waya wa chingwe chotulutsa, kukula kwa chingwe, kuchepetsa kutsekeka. Kuchuluka kwa chingwe, kutsika kwa impedance.

(2) Inverter ili pafupi kwambiri ndi malo olumikizidwa ndi gridi, yayifupi chingwe, kutsika kwa impedance. Mwachitsanzo, kutenga 5kw gululi olumikizidwa inverter mwachitsanzo, kutalika kwa AC linanena bungwe chingwe mkati 50m, mukhoza kusankha dera mtanda gawo la 2.5mm2 chingwe: kutalika 50 - 100m, muyenera kusankha mtanda-gawo la 4mm2 chingwe: kutalika kuposa 100m -6mm2 gawo chingwe chingwe.

Chifukwa cha zomwe zachitika:

Ma module ambiri amalumikizidwa motsatizana, zomwe zimapangitsa kuti voteji yolowera mbali ya DC ipitirire mphamvu yayikulu yogwiritsira ntchito inverter.

Yankho:

Malinga ndi kutentha kwa ma module a PV, kutsika kwa kutentha kozungulira, kumapangitsa kuti magetsi atuluke. Ndi bwino sintha chingwe voteji osiyanasiyana malinga inverter datasheet. Mumtundu uwu wamagetsi, mphamvu ya inverter ndiyokwera kwambiri, ndipo inverter imatha kukhalabe ndi mphamvu yoyambira mphamvu pamene kuwala kumakhala kochepa m'mawa ndi madzulo, ndipo sikudzachititsa kuti magetsi a DC apitirire malire apamwamba a inverter voteji, zomwe zidzatsogolera ku alamu ndi kutseka.