Ukubuka konke kwe-inverter ye-PV I-Inverter, eyaziwa nangokuthi i-power regulator, ingasetshenziswa ezinhlelweni zokukhiqiza amandla elanga njengezinto ezizimele zamandla noma ezixhunywe kugridi. Ngokusho kokuguqulwa kwe-waveform, ama-inverter angaba yi-square wave, i-step wave, i-sine wave, noma i-integrated three-phase. Ezinhlelweni ezixhunywe kugridi, ama-inverter angaba uhlobo lwe-transformer noma abe yi-transformer encane. Ukwakheka kwe-PV inverter Amadivayisi e-semiconductor akha isekethe ye-boost kanye nesekethe ye-inverter bridge ye-inverter, elungisa amandla okuguqulwa kwe-AC ngqo. Okulandelayo amadivayisi e-semiconductor ayinhloko:
(1) Inzwa yamanje: idinga ukunemba okuphezulu, ukusabela okusheshayo, ukumelana nokushisa okuphansi, ukumelana nokushisa okuphezulu, njll., izinzwa zamanje ezahlukene zisebenzisa amandla ahlukahlukene, ngokuvamile inzwa yamanje ye-Hall yokuthatha amasampula amanje;
(2) I-transformer yamanje: ububanzi bamanje, ngokuvamile uchungechunge lwe-BRS;
(3) I-Reactor. Isimiso sokusebenza sama-inverter e-PV Ama-inverter e-PV anesekethe yokukhulisa kanye nesekethe yebhuloho le-inverter. Isekethe yokukhulisa i-voltage ye-DC ikhuphukele ku-voltage yokuphuma, kuyilapho isekethe yebhuloho iyiguqula ibe yi-voltage ye-AC eguquguqukayo. Ngakho-ke, amasekethe ebhuloho le-boost kanye ne-inverter aguqula amandla e-DC abe amaphuzu e-AC. Ama-inverter e-Photovoltaic anezinkinga eziyi-10 ezivamile kanye namasu okucubungula.
1. Izinkinga zezinsizakusebenza I-voltage ephansi kakhulu, ephezulu kakhulu kanye nemvamisa kuyizinkinga zamandla ezinsizakusebenza (amakhodi ephutha F00-F03). ① Nquma ukuthi izinga lokuphepha lomshini liyahlangabezana yini nezindinganiso zegridi yamandla endawo. ② Qinisekisa ukuxhumana kwetheminali yokukhipha i-AC bese ulinganisa i-voltage usebenzisa i-multimeter. ③ Nqamula okokufaka kwe-PV, qala kabusha umshini, bese uhlola ukusebenza okuvamile. ④ Uma inkinga iqhubeka, xhumana nomsabalalisi.
2. Iphutha le-insulation eliphansi F07. ① Nqamula okokufaka kwe-PV, qala kabusha umshini, bese uhlola ukusebenza okuvamile. ② Qinisekisa ukuthi ukumelana komhlaba we-PV+ kanye ne-PV kudlula u-500KΩ. Uma unezinkinga ezingaphansi kuka-500KΩ, xhumana nomsabalalisi wendawo we-inverter noma umhlinzeki webhodi lebhethri ukuze uthole usizo.
3. Ukuvuza okudlulele Iphutha le-F20 Nqamula okokufaka kwe-PV, qala kabusha umshini, bese uhlola ukusebenza okuvamile. ② Uma ungaphumeleli, xhumana nomsabalalisi.
4. I-radiator kanye namazinga okushisa azungezile aphezulu kakhulu. Amaphutha e-F12, F13. ① Nqamula okokufaka kwe-PV, qala kabusha umshini, bese uhlola ukusebenza okuvamile ngemva kwemizuzu embalwa yokupholisa. ② Qinisekisa ukuthi izinga lokushisa elizungezile lidlula ububanzi obujwayelekile bomshini. Uma inkinga iqhubeka, xhumana nomsabalalisi.
5. Ukuqapha ngaphandle kwedathaUkulandelela i-WiFi: Xhuma i-inverter WiFi, hlola ikhasi lokuqapha ukuthola ulwazi lwe-inverter, xhuma kabusha i-WiFi module eyakhelwe ngaphakathi noma hlola uxhumano lwangaphandle lwe-WiFi RS485 uma lungekho ulwazi lwe-inverter, futhi uma ungakwazi ukusesha i-inverter WiFi, hlola i-WiFi module eyakhelwe ngaphakathi ukuthola ukuxhumana okungekuhle noma amandla e-WiFi angaphandle. Ukuze uqaphe i-GPRS, hlola amandla esignali ye-inthanethi yomhlinzeki wesevisi ofanayo endaweni yokufaka i-inverter. Hlola ukuthintana okubuthakathaka noma amamojula e-GPRS angaphandle angasebenzi.
6. I-insulation impedance ephansi Sebenzisa ukukhishwa. Susa zonke izintambo zikagesi ohlangothini lokufaka lwe-inverter, bese uzixhuma ngayinye ngayinye, sebenzisa i-inverter ukuthola i-insulation impedance ukuze uthole izintambo zenkinga, hlola isixhumi se-DC ukuthi sinesibani esifushane esigcwele amanzi noma isibani esifushane se-fusion esishisiwe, bese uhlola ukuthi ingxenye ishisiwe yini emaphethelweni okubangela ukuvuza kwengxenye.
7. Iphutha lamanje lokuvuza Imishini esezingeni eliphansi, ukufakwa okungekuhle, kanye nokubekwa okungafanele kuyayibhebhethekisa le nkinga. Amaphuzu okwehluleka ayanda: izixhumi ze-DC ezisezingeni eliphansi, izingxenye, ukuphakama kokufakwa kwezingxenye akufanelekile, imishini exhunywe ngegridi esezingeni eliphansi noma ukuvuza kwamanzi, kanye nezinkinga ezifanayo zingatholakala ngephuzu lokufafaza ** futhi zixazululwe ngokufakwa kahle kokushisa. Uma inkinga iyindawo yezinto ezibonakalayo, shintsha izinto.
8. I-inverter ayiphenduli Izintambo zokufaka ze-DC akufanele zibuyiselwe emuva, uxhumano olujwayelekile lwe-DC lunomphumela wokulwa nokungaguquguquki kodwa ama-crimp terminals awakwenzi. Sicela ufunde incwadi ye-inverter ukuze uqinisekise ukuthi ama-terminals amahle nangalungile kanye ne-crimp abalulekile. Ukuvikelwa kwe-reverse short circuit ye-inverter kuyivumela ukuthi iqale ngokujwayelekile ngemva kokuxhuma okuvamile.
9. Iphutha legridiUkweqiwa kwamandla kagesi: Umthwalo osindayo womsebenzi (ukusetshenziswa kwamandla amahora amaningi okusebenza) kanye nomthwalo olula (ukusetshenziswa kwamandla isikhathi esincane sokuphumula) kubonakala lapha, kusengaphambili ukuhlola i-voltage yegridi, kanye nabakhiqizi be-inverter ukuxhumana negridi ukwenza inhlanganisela yobuchwepheshe ukuqinisekisa ukuthi umklamo wephrojekthi ungaphakathi kobubanzi obufanele, "ungawuthathi kalula", ikakhulukazi kumagridi kagesi asemakhaya, i-inverter kuya kugridi, i-inverter ibaluleke kakhulu. Amagridi asemakhaya nama-inverter anemikhawulo eqinile ye-voltage, i-waveform kanye nebanga. Izinkinga eziningi ze-overvoltage zibangelwa ama-voltage omthwalo wokukhanya kwegridi eluhlaza adlula noma asondela emananini okuvikela ukuphepha. Uma umugqa wegridi umude kakhulu noma ungagoqekile kahle, isitshalo samandla asikwazi ukusebenza ngokujwayelekile nangokuqhubekayo. Impendulo iwukunquma igunya lokunikezwa kwamandla ukuxhumanisa i-voltage noma ukuxhumanisa igridi nokuqapha ikhwalithi yokwakhiwa kwesiteshi samandla. "Ukweqiwa kwamandla kagesi": Le nkinga ifana ne-grid over-voltage, kodwa ingabangela futhi i-voltage engamanga uma ama-voltage esigaba esizimele ephansi kakhulu, ukusatshalaliswa komthwalo kugridi kungaphelele, futhi izigaba zegridi zehliswa noma zinqanyuliwe. Imvamisa Yegridi Engaphezulu/Ngaphansi: Imvamisa Yegridi Engaphezulu/Ngaphansi: Ukuba khona kwalobu bunzima kugridi evamile kubonisa impilo embi yegridi. Ayikho i-voltage yegridi? Hlola imigqa yokubopha yegridi. Hlola ukuthi ayinaso yini isiphazamiso sesigaba segridi, noma ayikho i-voltage.
10. Ukuvikelwa kwe-DC overvoltage Ngokuphishekela izingxenye zokuthuthukisa inqubo esebenza kahle kakhulu, izinga lamandla livuselelwa njalo ukuze likhuphuke, kanye ne-voltage ye-open-circuit yezingxenye kanye ne-voltage yokusebenza. Ama-coefficient okushisa kumele acatshangelwe esigabeni sokuklama ukuze kugwenywe i-overvoltage kanye nomonakalo oqinile emishinini emazingeni okushisa aphansi.
IZINTO EZIYISITHUPHA ZOBUCHWEPHESHE EKUTHUTHUKENI AMA-PV INVERTER
Umkhuba 1: Ihadiwe ye-inverter ishintsha ngokushesha, okuhlanganisa i-SiC, i-CAN, i-DSP kanye ne-topology entsha, okuholela ekusebenzeni kahle okuthuthukisiwe. Ukusebenza kahle kweShayina kufinyelele ku-A+, ngenhloso ye-A+++.
Umkhuba 2: amandla e-inverter ahlanganisiwe, ukusebenza kahle, ukwanda kwe-voltage. Ama-inverter angu-2.5MW kanye namanye amazinga aphezulu kagesi azosetshenziswa kakhulu njengoba ebiza cishe ama-yuan angu-0.1/W ngaphansi kwe-1MW square array, okunciphisa izindleko zokuqala eziyizigidi eziyi-10 zesitshalo samandla esingu-100MW. Ukufaniswa kwekhebula kuqinisekisa ukuqina kokulahlekelwa izingxenye ze-DC. Uhlelo lwe-1500V luzolawula ukwakhiwa kwesitshalo samandla esikhulu. Ngaphandle kwezingxenye, lugcina ama-yuan angu-0.2/W, noma ama-20 million esiteshi samandla esingu-100MW.
Ithrendi 3: Ama-inverter ezintambo ayanda ngobuningi bamandla kanye namandla ngeyunithi ngayinye. Ama-inverter ezintambo ayaqhubeka nokukhula ngamandla afinyelela ku-80kW, ukwanda kobuningi bamandla, kanye nokwehla kwesisindo sezinhlelo zokusebenza eziyinselele lapho ukufakwa nokugcinwa kunzima khona. Ama-inverter ezintambo angu-40kW avela ku-Sunny Power alula kakhulu embonini, anesisindo esingu-39kg kuphela. I-Sunny Power ibilokhu isebenzisa ukupholisa okuhlakaniphile kwabalandeli ukuvimbela ukwanda kokushisa kwezingxenye zangaphakathi nokuthuthukisa umthamo wokulayisha ngokweqile kwe-inverter ezimweni zokushisa okuphezulu.
Ithrendi 4: Imikhiqizo Eyengeziwe Yezinga Lemojuli Amamojula afana nama-microinverter e-Enphase kanye nama-SolarEdge power optimizer aya ngokuya evame kakhulu. Inkampani yocwaningo lwemboni i-GTM ilindele ukuthi ukuthunyelwa kwama-electronics kagesi asezingeni lemojuli (MLPE) kukhuphuke kusuka ku-1.1GW ngo-2013 kuye ngaphezu kuka-5GW ngo-2017.
Ithrendi 5: Ukuzivumelanisa Negridi Nokuphepha Okukhulu Nokuvikelwa Kokuthembeka Ukuvikelwa kokuvuza, ukusebenza kwe-SVG, ukuvikelwa kwe-LVRT, i-DC module, ukuvikelwa kokutholwa kwe-insulation impedance, ukuvikelwa kwe-PID, ukuvikelwa kombani, ukuvikelwa kwe-PV okuhle nokubi kwe-reverse polarity, kanye nezinye izici ezihlala zithuthuka kwandisa ukuzivumelanisa negridi nokuphepha kohlelo lwama-inverters.
Umkhuba 6: Ukuzivumelanisa nezimo kwemvelo kwe-inverter Okuthuthukisiwe Ngokusetshenziswa okwandisiwe kweziteshi zamandla ze-photovoltaic ezindaweni ezinzima njengezingasogwini, ugwadule, ithafa, njll., ukumelana nokugqwala kwe-inverter, ukumelana nesihlabathi, nokunye ukuzivumelanisa nezimo kwemvelo kuyathuthuka ukuqinisekisa ukuthembeka okuphezulu.
UZhao Wei uthe ngokusebenzisa ubuchwepheshe obusha obuhlukahlukene, ukusetshenziswa kwemikhiqizo emisha kuyaqhubeka nokukhuthaza ubuchwepheshe be-PV, ukuthuthukisa ukusebenza kahle kwesistimu i-PR, ukunciphisa izindleko zikagesi zesistimu (i-LCOE), futhi ekugcineni kufinyelele ukulingana kwe-inthanethi, okuwumzabalazo ovamile wawo wonke umuntu. Ukwakheka kwesiteshi samandla kuzoshintshwa, ukuhlanganiswa kwesistimu kuthuthukiswe, futhi isisombululo se-inverter esihlanganisiwe, i-medium voltage transformer singenza uhlelo lube lula kakhulu, sinciphise izindleko, kube lula ukusetshenziswa, ukusebenza kahle, kanye nokwethenjelwa. Ukuthuthukiswa kwemboni ye-PV inverter kuyanda, ubuchwepheshe obuhlukahlukene obusha, imikhiqizo emisha, eshintsha njalo, evumelana nezimo zendawo, imincintiswano eyikhulu; eziteshini zamandla ezinkulu zomhlaba, izixazululo eziphakathi zokutshalwa kwezimali kokuqala ziphansi, izindleko zokusebenza nokugcinwa kamuva ziyintambo 1/3 kuphela, imiphumela eminingi yokusebenza kwesiteshi samandla ikhombisa ukuthi ukukhiqizwa kwamandla entambo ngentambo ephakathi kuyisinqumo esikhethwa ngumsebenzisi; Ama-inverter entambo angu-2/2.5M kuzinhlelo zokusebenza ezisatshalaliswa nawo ayakhula, futhi amandla aphezulu, ukusebenza kahle, kanye nobuningi bamandla yiziqondiso zesikhathi esizayo. I-PV + I-inthanethi izoba yinto evamile, futhi izinhlelo zokusebenza zokugcina amandla ze-PV + zizoba nekusasa eliqhakazile.
