Inganda za PV zifite ijambo: 2018 numwaka wambere wamashanyarazi yagabanijwe.Iyi nteruro yemejwe mubijyanye nifoto ya Photovoltaic agasanduku ka 2018 Nanjing yatanze amahugurwa yikoranabuhanga rya Photovoltaque!Abashiraho n'ababicuruza hirya no hino mu gihugu bateraniye i Nanjing kugira ngo bige kuri gahunda ubumenyi bwo gukwirakwiza amashanyarazi akwirakwizwa.
Nka nzobere mubijyanye na inverteri yifotora, Renac yamye yitangira siyanse yubumenyi.Ku mahugurwa ya Nanjing, Umuyobozi wa Serivisi ishinzwe Tekinike ya Renac yatumiriwe gusangira guhitamo inverter na serivisi zubwenge.Nyuma yamasomo, abanyeshuri bafashijwe gusesengura ibibazo rusange by’amashanyarazi y’amashanyarazi kandi bahabwa ishimwe ry’abanyeshuri.
Inama:
1. Mugaragaza inverter ntabwo igaragara
Isesengura ryatsinzwe:
Hatariho DC yinjiza, inverter LCD ikoreshwa na DC.
Impamvu zishoboka:
.Umuvuduko wibigize bifitanye isano nimirasire yizuba.
(2) PV yinjiza itumanaho irahindurwa.PV terminal ifite inkingi ebyiri, nziza nibibi, kandi bigomba guhuza.Ntibishobora guhuzwa muburyo butandukanye nandi matsinda.
(3) Guhindura DC ntabwo bifunze.
(4) Iyo umugozi uhujwe muburyo bubangikanye, umwe mubahuza ntabwo ahujwe.
(5) Hano harumuzunguruko mugufi muri module, bigatuma ntayindi migozi ikora.
Igisubizo:
Gupima DC yinjiza voltage ya inverter hamwe na voltage yumurongo wa multimeter.Iyo voltage isanzwe, voltage yose nigiteranyo cya voltage ya buri kintu.Niba nta voltage ihari, hanyuma ugenzure DC ihinduranya, itumanaho rya terefone, umuyoboro wa kabili, nibice bikurikirana;niba hari ibice byinshi, gutandukanya ibizamini bitandukanye.
Niba inverter ikoreshwa mugihe runaka kandi ntampamvu yo hanze yabonetse, ibyuma bya inverter byumuzunguruko ni amakosa.Menyesha injeniyeri tekinike nyuma yo kugurisha.
2. Inverter ntabwo ihujwe numuyoboro
Isesengura ryatsinzwe:
Nta sano riri hagati ya inverter na gride.
Impamvu zishoboka:
(1) AC switch ntabwo ifunze.
(2) AC isohoka rya terminal ya inverter ntabwo ihujwe.
(3) Iyo insinga, itumanaho ryo hejuru rya inverter isohoka risohoka.
Igisubizo:
Gupima AC isohoka ya voltage ya inverter hamwe na voltage intera ya multimeter.Mubihe bisanzwe, ibyasohotse bisohoka bigomba kugira 220V cyangwa 380V voltage.Niba atariyo, reba niba itumanaho ryihuza rirekuye, niba AC yahinduwe ifunze, kandi niba uburyo bwo kurinda ibimenetse bwaciwe.
3. Inverter PV Kurenga
Isesengura ryatsinzwe:
DC voltage cyane.
Impamvu zishoboka:
Umubare munini wibigize murukurikirane bitera voltage kurenza kwinjiza voltage ntarengwa ya inverter.
Igisubizo:
Kubera ubushyuhe buranga ibice, ubushyuhe buke, niko voltage iri hejuru.Iyinjiza rya voltage yumurongo umwe wumugozi inverter ni 50-600V, naho umurongo uteganijwe wa voltage uri hagati ya 350-400.Iyinjiza rya voltage urwego rwibice bitatu byumugozi inverter ni 200-1000V.Urwego rwa nyuma ya voltage iri hagati ya 550-700V.Muri iyi ntera ya voltage, imikorere ya inverter iri hejuru.Iyo imirasire iba mike mugitondo na nimugoroba, irashobora kubyara amashanyarazi, ariko ntabwo itera voltage kurenza urugero rwo hejuru rwumubyigano wa inverter, itera gutabaza no guhagarara.
4. Inverter amakosa yo gukumira
Isesengura ryatsinzwe:
Kurwanya insulisiyo ya sisitemu ya Photovoltaque hasi ni munsi ya megohms 2.
Impamvu zishoboka:
Imirasire y'izuba, agasanduku gahuza, insinga za DC, inverter, insinga za AC, insinga za insinga, nibindi, bifite umuzenguruko mugufi hasi cyangwa kwangirika kurwego.Amashanyarazi ya PV n'inzu ya AC wiring irekuye, bigatuma amazi yinjira.
Igisubizo:
Hagarika gride, inverter, reba ukurwanya kwa buri kintu kubutaka, hanyuma umenye ibibazo, hanyuma usimbuze.
5. Ikosa rya gride
Isesengura ryatsinzwe:
Umuyoboro wa gride na frequency biri hasi cyane cyangwa hejuru cyane.
Impamvu zishoboka:
Mu turere tumwe na tumwe, umuyoboro wo mu cyaro ntiwigeze wubakwa kandi ingufu za gride ntiziri mu rwego rw’umutekano.
Igisubizo:
Koresha multimeter kugirango upime grid voltage na frequency, niba ari hanze yo gutegereza ko gride isubira mubisanzwe.Niba amashanyarazi ari ibisanzwe, ni inverter yerekana kunanirwa kwinama yumuzunguruko.Hagarika imashini zose za DC na AC za mashini hanyuma ureke inverter isohore muminota 5.Funga amashanyarazi.Niba ishobora gusubukurwa, niba idashobora kugarurwa, hamagara.Nyuma yo kugurisha injeniyeri tekinike.