Njengenxalenye ebalulekileyo yesikhululo samandla sonke, i-solar inverter isetyenziselwa ukukhangela amacandelo e-DC kunye nezixhobo eziqhagamshelwe kwigridi. Ngokusisiseko, zonke iiparamitha zesikhululo samandla zinokubonwa yiinverter yelanga. Ukuba kukho into engaqhelekanga, impilo yezixhobo ezixhasa isikhululo samandla inokujongwa ngolwazi olunikwe sisiguquli selanga. Oku kulandelayo sisishwankathelo solunye ulwazi oluqhelekileyo lwephutha kunye neendlela zonyango ze-photovoltaic inverters zelanga.
Akukho qhagamshelwano lweemayini
unobangela womba:
Kuthetha ukuba amandla e-AC akaqhagamshelwanga okanye i-AC yesekethe i-breaker inqanyuliwe, ibangelainverter yelangaukungakwazi ukubona amandla ombane e-AC.
Isisombululo:
1. Qinisekisa ukuba igridi yamandla iphelelwe ngamandla. Ukuba kunjalo, linda igridi yamandla ukuba iqalise kwakhona unikezelo lwamandla.
2. Ukuba umbane ovela kwigridi yamandla uqhelekile, sebenzisa uluhlu lwe-AC voltage ye-multimeter ukulinganisa ukuba i-AC output voltage iqhelekile. Okokuqala, linganisa i-port ye-solar inverter output kwaye ukhangele ukuba kukho nayiphi na ingxaki kwicala lokuphuma kwe-solar inverter. Ukuba akukho ngxaki, kuthetha ukuba kukho ikhefu lesiphaluka kwicala langaphandle le-AC. Kufuneka ukhangele ukuba i-air switch, i-knife switch, i-over-voltage kunye nomkhuseli ongaphantsi kwe-voltage kunye nezinye izitshixo zokhuseleko zonakele okanye isekethe evulekileyo.
Umbane we-AC uphumile kuluhlu
unobangela womba:
Xa ukuveliswa kwamandla e-photovoltaic kuxhunyiwe kwigridi yamandla ecala lomsebenzisi, i-voltage yendawo yokufikelela iya kwanda. Okukhona ukuchasana kwangaphakathi kwegridi yamandla, kokukhona oku kuxatyiswa. Ukusondela kwi-transformer, encinci ukuchasana komgca, ukuguquguquka okuncinci kwigridi kuya kuba, kwaye isondele ekupheleni kwegridi, ixesha elide imigca, i-voltage eguquguqukayo inkulu. Ngoko ke, xa iinverter yelangaixhunywe kwigridi ekude ne-transformer, indawo yokusebenza yegridi ye-inverter yelanga iya kuba mbi kakhulu. Emva kokuba umda ophezulu we-voltage yokusebenza ye-solar inverter ugqithisiwe, i-inverter yelanga iya kuxela impazamo kwaye iyeke ukusebenza. Ngokweenkcukacha zobugcisa ze-photovoltaic power generation grid-connected inverters elanga (NB/T 32004-2018), iimfuno zokukhuselwa kwe-overvoltage/undervoltage kwicala lemveliso ye-AC: Xa i-voltage kwi-terminal ye-AC yemveliso ye-solar inverter idlula uluhlu oluvumelekileyo lwe-voltage yegridi, i-inverter yelanga ivunyelwe ukuvala. Vula unikezelo lwamandla kwigridi yamandla kwaye uthumele uphawu lwesilumkiso xa lucinyiwe. I-inverter yelanga kufuneka ikwazi ukuqala kwaye isebenze ngokuqhelekileyo xa i-voltage yegridi ibuyela kuluhlu lwamandla oluvumelekileyo.
Isisombululo:
1. Zama ukubeka indawo yokufikelela kwisikhululo samandla e-photovoltaic ngokusondeleyo ekupheleni kwemveliso ye-transformer ukunciphisa ilahleko yomgca.
2. Zama ukunciphisa ubude bomgca we-solar inverter ye-AC ekupheleni kwemveliso, okanye usebenzise iintambo ze-core copper ezityebileyo ukunciphisa umahluko wombane phakathi kwe-solar inverter kunye negridi.
3. Ngoku uninzi lwee-inverters ze-solar ezixhunyiwe kwigridi zinomsebenzi wokulawula amandla ombane we-AC. Ungaqhagamshelana nomvelisi ukuba andise uluhlu lwamandla ombane we-AC ukuziqhelanisa nokuguquguquka kwamandla ombane wegridi.
4. Ukuba kunokwenzeka, i-voltage ephumayo ye-transformer inokwehliswa ngokufanelekileyo.
Ukuxhathisa okuphantsi kwe-insulation
unobangela womba:
I-inverter yelanga inomsebenzi wokubona i-impedance ye-insulation yecala le-DC. Xa ibona ukuba i-DC-positive kunye ne-negative impedance emhlabeni ingaphantsi kwe-50kΩ, i-solar inverter iya kunika ingxelo "i-PV insulation impedance yimpazamo ephantsi kakhulu" ukukhusela umzimba womntu ukuba uthintele indawo ephilayo yepaneli kunye nomhlaba kwindawo. ngexesha elifanayo, kubangela umngcipheko wokutshatyalaliswa kombane. Izinto ezinempembelelo ziquka: ukuvuza kwecandelo le-DC; Umonakalo we-cable insulation, uhlala utyhile inxalenye yokufuma; ukumiselwa kwesibiyeli secandelo kubi; imozulu kunye nokufuma okusingqongileyo kwesikhululo samandla kuphezulu kakhulu, njl.
Isisombululo:
Nqamula i-AC kunye ne-DC i-circuit breakers, sebenzisa i-MC4 ekhethekileyo ye-disssembly wrench ukususa izibonda ezilungileyo kunye nezibi zomtya wovavanyo we-DC ukuqinisekisa ukuba isibiyeli secandelo sisekelwe ngokuthembekileyo, sebenzisa uluhlu lwe-multimeter megohm, qhagamshela uvavanyo olubomvu kwi-positive. isibonda somtya, kunye novavanyo olumnyama lukhokelela emhlabeni, funda ukufundwa kwe-impedance yepali nganye elungileyo emhlabeni, kwaye emva koko uqhagamshele uvavanyo olubomvu olukhokelela kwipali engalunganga yomtya, emva koko ufunde ukufundwa kwe-impedance nganye engalunganga. ipali emhlabeni. Ukuba kukhulu kune-50kΩ, kugwetywa ukuba ukugquma komtya kunokwethenjelwa. Ukuba ingaphantsi okanye ilingana ne-50kΩ, kugwetywa ukuba kukho ingxaki kunye nokufakwa kwentambo. Unokujonga imeko yentambo yomtya ngokwahlukileyo ukuze ubone ukuba kukho nawuphi na umonakalo okanye uqhagamshelwano olubi. I-impedance ye-insulation ephantsi ngokubanzi ithetha ukuba iipali ezilungileyo kunye nezibi zifutshane-zijikeleze emhlabeni.
Ukuvuza kwangoku kuphezulu kakhulu
unobangela womba:
Imodyuli yokufumanisa i-solar inverter evuzayo yangoku ifumanisa ukuba ukuvuza kwangoku kukhulu kakhulu. Ukukhusela ukhuseleko lomntu, iyayeka ukusebenza kwaye inike ingxelo ngeenkcukacha eziphosakeleyo.
Isisombululo:
1. Nciphisa igalelo lePV, qalisa ngokutsha umatshini, kwaye ujonge ukuba umatshini unokubuyela kwinto eqhelekileyo.
2. Khangela ukuba i-AC wire yomhlaba iqhagamshelwe kucingo oluphilayo, jonga ukuba ingaba i-voltage phakathi kocingo olusemhlabeni kunye nocingo oluphilayo iqhelekile, okanye sebenzisa i-detector yangoku evuzayo ukuyibhaqa.
3. Ukuba akukho nxu lumano phakathi kocingo lomhlaba wokulinganisa kunye nocingo oluphilayo, kunokwenzeka ukuba umatshini uyavuza, kwaye kufuneka uqhagamshelane nomenzi woncedo.
Umbane weDC uphezulu kakhulu
unobangela womba:
Maninzi kakhulu amacandelo aqhagamshelene ngothotho kumtya omnye wePV, obangela ukuba amandla ombane agqithe kumda ongaphezulu wePV wombane wesolar inverter.
Isisombululo:
Khangela iiparamitha ze-inverter yelanga, misela uluhlu lwegalelo lombane we-DC, kwaye emva koko ulinganise ukuba i-voltage yesiphaluka evulekileyo yomtya ingaphakathi kuluhlu oluvumelekileyo lwe-solar inverter. Ukuba idlula uluhlu oluvumelekileyo, nciphisa inani lamacandelo ochungechunge kumtya.
Ngendlela efanayo, ukuba i-voltage ye-PV ixelwe ukuba iphantsi kakhulu, khangela ukuba inani leemodyuli ezixhunyiwe kwichungechunge lincinci kakhulu, okanye ukuba izibonda ezilungileyo kunye nezibi zomtya zixhunyiwe ngokuphambeneyo, ii-terminals zikhululekile, uqhagamshelwano. ihlwempuzekile, okanye intambo ivuliwe.
Akukho mboniso kwiscreen sesolar inverter
unobangela womba:
1. Akukho igalelo le-DC okanye ukungaphumeleli kombane oncedisayo, i-LCD ye-solar inverter inikwe amandla yi-DC, kwaye i-voltage yecandelo ayikwazi ukufikelela kwi-solar inverter yokuqala yombane.
2. I-PV input terminals ixhunywe ngasemva. I-terminals ye-PV inezibonda ezintle kunye nezibi, ekufuneka zihambelane kunye kwaye azikwazi ukudibaniswa kwichungechunge kunye namanye amaqela.
3. Ukutshintsha kwe-DC akuvaliwe.
4. Elinye icandelo linqanyuliwe, libangela ukuba ezinye iintambo zingakwazi ukusebenza.
Isisombululo:
1. Sebenzisa i-multimeter ukulinganisa i-DC input voltage ye-solar inverter. Xa i-voltage iqhelekile, i-voltage iyonke sisimbuku se-voltage yecandelo ngalinye.
2. Ukuba akukho mbane, khangela ukuba i-DC switch, i-wiring terminals, i-cable joints, amacandelo, njl.
Imiba yokubeka iliso
unobangela womba:
Umqokeleli kunye ne-inverter yelanga ayinxibelelani; umqokeleli akanikwanga amandla: ingxaki yomqondiso kwindawo yofakelo; izizathu zangaphakathi zomqokeleli.
Isisombululo:
1. Khangela ukuba ngaba unxibelelwano phakathi komqokeleli kunye neinverter yelangaiqhelekile, kwaye ujonge ukukhanya kwesalathisi sonxibelelwano;
2. Jonga amandla omqondiso wendawo. Iindawo ezineempawu ezibuthathaka kufuneka zisebenzise i-eriyali ezomeleziweyo.
3. Skena inombolo yesiriyeli yomqokeleli echanekileyo
4. Xa kungekho ngxaki ngeemeko zangaphandle, ukuba umqokeleli akaphenduli naluphi na uxhumano, kunokuqwalaselwa ukuba kukho ukungaphumeleli kwangaphakathi komqokeleli.
Shwankathela
Ngaphezulu, iingxaki eziqhelekileyo zeinverter yelangas kwiiprojekthi ze-photovoltaic zihlalutywa kwaye ezinye iingcebiso zinikezelwa, zijolise ekuqondeni izizathu kunye neendlela zonyango lweengxaki eziqhelekileyo. Ngexesha elifanayo, ekugcinweni kwansuku zonke kwezikhululo zamandla, amanyathelo okukhusela okhuseleko olupheleleyo kunye nokusebenza kakuhle okusemgangathweni kunye nokugcinwa kuyadingeka. Ikwasisitshixo ekuqinisekiseni ingeniso yesikhululo samandla.
Njengomvelisi we-solar inverter kunye neminyaka eyi-12 yobuchwephesha, i-Amensolar inikezela ngenkonzo ye-24/7 emva kokuthengisa, ukwamkela abasasazi ukuba bajoyine inethiwekhi yethu kwaye bakhule kunye.
Ixesha lokuposa: May-12-2024
