Yintoni iSigaba seSithathu soguqulo lwelanga?
Iinqanaba lesithathu inverter yelangaluhlobo lwe-inverter olusetyenziswa kwiinkqubo zamandla elanga ukuguqula umbane we-DC (umbane othe ngqo) oveliswa ziipaneli zelanga zibe yi-AC (alternating current) umbane olungele ukusetyenziswa ezindlini okanye kumashishini.
Igama elithile"inqanaba lesithathu"ibhekisa kuhlobo lwesixokelelwano sombane apho i-inverter isebenza khona.Kwinkqubo yeSigaba esiThathu, kukho imigca emithathu eyahlukileyo okanye izigaba ezihlanjululwayo ukusuka komnye nomnye ngama-degrees angama-120, okubangela ukusabalalisa okulinganayo kunye nokusebenza kakuhle kwamandla.
Eziii-inverterszidla ngokusetyenziswa kurhwebo okanye kufakelo lwelanga kwimizi-mveliso apho izixa ezikhulu zombane zenziwa kwaye zisetyenziswe.Ziyilelwe ukuphatha ii-voltages eziphezulu kunye namandla ombane kunee-inverters zesigaba esinye, zibenza bafanelekele ii-arrays ezinkulu zelanga.
NjaniIziguquli zelanga ezithathuumsebenzi
Nantsi ingcaciso eyenziwe lula yendlela inqanaba lelanga eliThathuii-invertersumsebenzi:
Ukuguqulwa kwe-DC ukuya kwi-AC: Iiphaneli zelanga zivelisa amandla e-DC xa zibekwe elangeni.La mandla eDC afakwaInqanaba lesithathu le-solar inverter.
Ukulandelela i-MPPT: I-inverter yenza i-Maximum Power Point Tracking (MPPT), eyenza umbane wokuphuma kwamandla eepaneli zelanga ngokumisela i-voltage kunye nokudibanisa kwangoku okuvelisa amandla aphezulu ombane.
I-Inverter: Amandla e-DC aguqulelwa kumandla e-AC ngamacandelo e-elektroniki afana ne-IGBT (I-Insulated Gate Bipolar Transistors) okanye i-MOSFETs (i-Metal-Oxide-Semiconductor Field-Effect Transistors).
Ungqamaniso lwegridi: Iinverterehlala ebeka iliso kwi-voltage yegridi kunye ne-frequency ukuqinisekisa ulungelelwaniso kunye negridi eluncedo.
Ulawulo lwamandla: Iinverterilungisa imveliso yamandla ngokusekelwe kwiimfuno zombane kunye namandla akhoyo elanga.
Uqhagamshelwano lwegridi kunye nokubeka iliso: IInqanaba lesithathu le-solar inverteridityaniswe kuthungelwano lwegridi, ivumela amandla angaphezulu ukuba athunyelwe ngaphandle kwigridi okanye atsalwe kwigridi xa kufuneka.
Iimpawu zokukhusela kunye nokhuseleko: Isigaba sesithathu solarii-inverterszixhotyiswe ngeendlela ezahlukeneyo zokukhusela, kubandakanywa ukukhuselwa kwe-anti-islanding, ukukhuselwa kwe-overvoltage kunye nokukhuselwa kwe-undervoltage.
Iimpawu eziphambili zeInqanaba lesithathu le-solar inverter
1. Amagalelo eMPPT amaninzi: ManinziIziguquli zesigaba ezintathuunikezela ngeengeniso ezininzi ze-Maximum Power Point Tracking (MPPT), ezivumela uxhulumaniso lweentambo ezininzi zeepaneli zelanga ezineendlela ezahlukeneyo zokuqhelaniswa okanye iimeko ze-shading.
2. Ulawulo lwamandla olusebenzayo: AbanyeIziguquli zesigaba ezintathunikeza ulawulo lwamandla olusebenzayo.Eli nqaku livumela i-inverter ukuba ilawule ngokusebenzayo ukuhamba kwamandla asebenzayo, iqinisekisa ukulungiswa kwezinto zamandla kunye nokuzinza kwegridi.Ivumela ulawulo olungcono kunye nokuthotyelwa kwemimiselo yegridi.
3. Ukhuseleko oluchasene nesiqithi:Abaguqulikunye nokukhusela i-anti-islanding ibonakaliso yeendlela zokhuseleko eziphambili ezibona iimeko ezingaqhelekanga zegridi, ezifana nokuphuma kombane, kunye nokuqhawula ngokuzenzekelayo inkqubo yelanga kwigridi.Oku kukhusela abasebenzi bezinto eziluncedo kwiingozi zombane ngexesha lokugcinwa okanye ukulungiswa.
4. Ukubeka iliso kunye nolawulo olukude: Uninzi lwezigaba eziThathu zesolaii-invertersbanezakhono zonxibelelwano ezakhelwe ngaphakathi ezivumela ukubeka esweni okude kunye nolawulo lwenkqubo.
5. Imisebenzi yenkxaso yegridi: Ikwinqanaba eliphezuluIziguquli zesigaba ezintathuinokubonelela ngenkxaso yegridi ngokulawula amandla ombane kunye namaxesha.Oku kuluncedo kakhulu kwiinkqubo ezidityaniswe negridi, apho i-inverter inokuzinzisa ngokusebenzayo ukuguquguquka kombane kunye nokunceda ukulinganisela igridi.
6. Iiprothokholi zonxibelelwano oluphezulu lwenethiwekhi: Ukongeza ekubekweni kweliso kude kunye nolawulo, ezinyeIziguquli zesigaba ezintathuukuxhasa iiprothokholi zonxibelelwano eziphucukileyo ezifana ne-Modbus okanye i-Ethernet, eyenza ukudityaniswa komthungo kunye nezinye iinkqubo zokubeka iliso okanye amaqonga olawulo lwamandla.
7. Ukudibanisa kunye neeNkqubo zokuGcinwa kwamandla: Ngokukhula kokuthandwa kwezisombululo zokugcina amandla, ezinyeNtathuii-inverters zelanga zesigabazinika iinketho zokudityaniswa kweenkqubo zokugcina ibhetri.
Ixesha lokuposa: Aug-28-2023