Njengengxenye ebalulekile yaso sonke isiteshi samandla, i-solar inverter isetshenziselwa ukuthola izingxenye ze-DC kanye nemishini exhunywe kugridi. Ngokuyisisekelo, wonke amapharamitha esiteshi samandla angatholwa yi-i-solar inverter. Uma kwenzeka okuthile okungavamile, impilo yezinto ezisekelayo zesiteshi sikagesi ingabhekwa ngolwazi olunikezwa yi-solar inverter. Okulandelayo isifinyezo solwazi oluthile oluvamile lwephutha nezindlela zokwelashwa ze-photovoltaic inverters zelanga.
Alukho uxhumano lwamapayipi
imbangela yenkinga:
Kusho ukuthi amandla e-AC awaxhunyiwe noma i-AC circuit breaker inqanyuliwe, okubangelei-solar inverterukuze ungakwazi ukubona i-voltage yamandla e-AC.
Isixazululo:
1. Thola ukuthi igridi yamandla iphelelwe amandla. Uma kunjalo, linda igridi yamandla ukuthi iqalise kabusha ukuhlinzekwa kwamandla.
2. Uma ukunikezwa kwamandla okuvela kugridi yamandla kujwayelekile, sebenzisa ububanzi be-voltage ye-AC ye-multimeter ukuze ulinganise ukuthi i-voltage ephumayo ye-AC ijwayelekile yini. Okokuqala, linganisa imbobo yokukhipha i-solar inverter bese uhlola ukuthi ingabe ikhona yini inkinga ohlangothini lokuphumayo lwe-solar inverter. Uma ingekho inkinga, kusho ukuthi kukhona ikhefu lokujikeleza ohlangothini lwe-AC lwangaphandle. Udinga ukubheka ukuthi switch yomoya, iswishi yommese, i-over-voltage ne-under-voltage protector namanye amaswishi okuphepha alimele noma isekethe evuliwe.
I-voltage ye-AC iphumile ebangeni
imbangela yenkinga:
Uma ukukhiqizwa kwamandla e-photovoltaic kuxhunywe kugridi yamandla ohlangothini lomsebenzisi, i-voltage yendawo yokufinyelela izokhuphuka. Uma kukhulu ukumelana kwangaphakathi kwegridi yamandla, kukhulu lokhu kwazisa. Ukusondela ku-transformer, kuncane ukumelana nomugqa, ukuguquguquka okuncane kugridi kuzoba, futhi eduze nokuphela kwegridi, imigqa ende, ukuguquguquka okukhulu kwe-voltage. Ngakho-ke, lapho i-i-solar inverterixhunywe kugridi kude ne-transformer, indawo yokusebenza yegridi ye-inverter yelanga izoba mpofu kakhulu. Ngemuva kokuthi umkhawulo ongaphezulu we-voltage yokusebenza ye-solar inverter udluliwe, i-inverter yelanga izobika iphutha futhi iyeke ukusebenza. Ngokwezicaciso zobuchwepheshe zama-photovoltaic power generation-connected solar inverters (NB/T 32004-2018), izidingo zokuvikela i-overvoltage/undervoltage ohlangothini oluphumayo lwe-AC: Lapho i-voltage kutheminali yokuphuma kwe-AC ye-solar inverter idlula ububanzi be-voltage obuvumelekile begridi, i-inverter yelanga ivunyelwe ukuvala. Vula ukunikezwa kwamandla kugridi yamandla bese uthumela isignali eyisixwayiso uma inqanyulwa. I-inverter yelanga kufanele ikwazi ukuqala futhi isebenze ngokujwayelekile lapho i-voltage yegridi ibuyela ebangeni le-voltage elivumelekile.
Isixazululo:
1. Zama ukubeka indawo yokufinyelela yesiteshi samandla e-photovoltaic eduze nokuphela kokuphuma kwe-transformer ukuze unciphise ukulahlekelwa komugqa.
2. Zama ukufinyeza ubude bomugqa we-solar inverter AC ophumayo ekugcineni, noma usebenzise izintambo eziwumgogodla wethusi eziwugqinsi ukuze unciphise umehluko we-voltage phakathi kwesiguquli selanga negridi.
3. Manje ama-inverter amaningi elanga axhunywe kugridi anomsebenzi wokulawula ugesi we-AC. Ungathintana nomkhiqizi ukuze unwebe ububanzi be-voltage ye-AC ukuze uvumelane nokuguquguquka kwamandla kagesi wegridi.
4. Uma kungenzeka, i-voltage ephumayo ye-transformer ingahle yehliswe ngokufanelekile.
Ukumelana nokufakwa okuphansi
imbangela yenkinga:
I-inverter yelanga inomsebenzi wokuthola i-impedance ye-insulation yohlangothi lwe-DC. Uma ithola ukuthi i-DC positive and negative impedance phansi ingaphansi kuka-50kΩ, inverter yelanga izobika ukuthi "i-PV insulation impedance iyiphutha eliphansi kakhulu" ukuvimbela umzimba womuntu ukuthinta ingxenye ebukhoma yephaneli kanye nomhlabathi ngesikhathi esifanayo, okubangela ingozi yokushaqeka kukagesi. Izici ezinomthelela zihlanganisa: ukuvuza kwengxenye ye-DC; ukulimala kokufakwa kwekhebula, umswakama ophilayo oveziwe; isisekelo sengxenye yobakaki akulungile; isimo sezulu nesiteshi samandla umswakama uphezulu kakhulu, njll.
Isixazululo:
Nqamula ama-circuit breaker e-AC ne-DC, sebenzisa isikrufu esikhethekile se-MC4 ukuze ususe izigxobo ezinhle nezingezinhle zeyunithi yezinhlamvu yokuhlola ye-DC ukuze uqinisekise ukuthi ubakaki wengxenye usekelwe ngokuthembekile, sebenzisa ububanzi be-multimeter megohm, xhuma umthofu wokuhlola obomvu endaweni ephozithivu. isigxobo sentambo, futhi ukuhlolwa okumnyama kuholela emhlabathini, funda ukufundwa kwe-impedance yesigxobo ngasinye esiqondile phansi, bese uxhuma isivivinyo esibomvu esigxotsheni esinegethivu sentambo, bese ufunda ukufundwa kwe-impedance kwenegethivu ngayinye. isigxobo emhlabathini. Uma kukhulu kuno-50kΩ, kwahlulelwa ukuthi ukufakwa kwentambo kuthembekile. Uma ingaphansi noma ilingana no-50kΩ, kwahlulelwa ukuthi kunenkinga ngokufakwa kwentambo. Ungahlola isimo sekhebula lentambo ngokwehlukana ukuze ubone ukuthi akukho yini umonakalo noma ukuthintana okungekuhle. I-impedance ephansi ye-insulation ngokuvamile isho ukuthi izigxobo ezinhle nezingezinhle zifinyezwa phansi.
Ukuvuza kwamanje kuphezulu kakhulu
imbangela yenkinga:
Imojula yamanje yokuthola ukuvuza kwe-solar inverter ithola ukuthi ukuvuza kwamanje kukhulu kakhulu. Ukuze kuvikelwe ukuphepha komuntu siqu, iyayeka ukusebenza bese ibika ulwazi olunephutha.
Isixazululo:
1. Nqamula okokufaka kwe-PV, qala kabusha umshini, bese ubheka ukuthi umshini ungabuyela kokujwayelekile yini.
2. Hlola ukuthi intambo yaphansi ye-AC ixhunywe kwintambo ebukhoma yini, kala ukuthi ingabe i-voltage phakathi kwentambo yaphansi nentambo ebukhoma ijwayelekile yini, noma sebenzisa umtshina wamanje ovuzayo ukuze uyithole.
3. Uma kungekho ukuxhumana phakathi kwentambo yaphansi yokulinganisa kanye nentambo ephilayo, kungenzeka ukuthi umshini uyavuza, futhi udinga ukuxhumana nomkhiqizi ukuze uthole usizo.
I-voltage ye-DC iphezulu kakhulu
imbangela yenkinga:
Kunezingxenye eziningi kakhulu ezixhunywe ngochungechunge kuntambo eyodwa ye-PV, okubangela ugesi ukuba udlule umkhawulo ongaphezulu we-PV voltage we-solar inverter.
Isixazululo:
Hlola amapharamitha we-inverter yelanga, thola ububanzi bokufakwa kwe-voltage ye-DC, bese ukala ukuthi ingabe i-voltage yesifunda evulekile yeyunithi yezinhlamvu ingaphakathi kwebanga elivumelekile le-solar inverter. Uma idlula ububanzi obuvunyelwe, yehlisa inani lezingxenye zochungechunge kuyunithi yezinhlamvu.
Ngendlela efanayo, uma i-voltage ye-PV kubikwa ukuthi iphansi kakhulu, hlola ukuthi inani lamamojula axhunywe ochungechungeni lincane kakhulu, noma ukuthi izigxobo ezinhle nezimbi zentambo zixhumeke ngokuhlehlayo, amatheminali akhululekile, othintana naye. impofu, noma intambo ivuliwe.
Asikho isibonisi esikrinini se-solar inverter
imbangela yenkinga:
1. Akukho okokufaka kwe-DC noma ukwehluleka kokunikezwa kwamandla asizayo, i-LCD ye-solar inverter inikwa amandla yi-DC, futhi i-voltage yengxenye ayikwazi ukufinyelela ku-voltage yokuqala ye-solar inverter.
2. Amatheminali okufakwayo e-PV axhumeke ngokuhlehla. Amatheminali e-PV anezigxobo ezinhle nezimbi, okufanele zihambisane futhi azikwazi ukuxhunywa ochungechungeni namanye amaqembu.
3. Iswishi ye-DC ayivaliwe.
4. Ingxenye eyodwa inqanyuliwe, okwenza ezinye izintambo zingakwazi ukusebenza.
Isixazululo:
1. Sebenzisa i-multimeter ukukala i-voltage yokufaka ye-DC ye-inverter yelanga. Uma i-voltage ijwayelekile, isamba se-voltage iyisamba sama-voltage engxenye ngayinye.
2. Uma ingekho i-voltage, hlola ukuthi i-DC switch, amatheminali ezintambo, amajoyinti ekhebula, izingxenye, njll. zijwayelekile yini.
Izinkinga zokuqapha
imbangela yenkinga:
Umqoqi kanye ne-solar inverter abaxhumani; umqoqi akanikwanga amandla: inkinga yesignali endaweni yokufaka; izizathu zangaphakathi zomqoqi.
Isixazululo:
1. Hlola ukuthi ingabe ukuxhumana phakathi komqoqi kanye ne-i-solar inverterijwayelekile, futhi ubheke ukukhanya kwenkomba yokuxhumana;
2. Hlola amandla esignali yendawo. Izindawo ezinezimpawu ezibuthakathaka zidinga ukusebenzisa izinti ezithuthukisiwe.
3. Skena inombolo efanele ye-serial yomqoqi
4. Uma kungenazinkinga ngezimo zangaphandle, uma umqoqi engaphenduli kunoma yikuphi ukuxhumana, kungabhekwa ukuthi kukhona ukwehluleka kwangaphakathi komqoqi.
Fingqa
Ngenhla, izinkinga ezijwayelekile zei-solar inverters kumaphrojekthi we-photovoltaic ayahlaziywa futhi kunikezwe ezinye iziphakamiso, kugxile ekuqondeni izimbangela nezindlela zokwelapha zezinkinga ezijwayelekile. Ngesikhathi esifanayo, ekugcinweni kwansuku zonke kweziteshi zikagesi, izinyathelo eziphelele zokuvikela ukuphepha kanye nokusebenza okuhle okujwayelekile nokugcinwa kuyadingeka. Kuphinde kube wukhiye wokuqinisekisa imali engenayo yesiteshi sikagesi.
Njengomkhiqizi we-solar inverter neminyaka eyi-12 yobungcweti, i-Amensolar inikeza insizakalo engama-24/7 ngemva kokuthengisa, yamukela abasabalalisi ukujoyina inethiwekhi yethu futhi bakhule ndawonye.
Isikhathi sokuthumela: May-12-2024
