I-inverter iyingqondo nenhliziyo yesistimu yokukhiqizwa kwamandla e-photovoltaic. Enkambisweni yokukhiqizwa kwamandla e-photovoltaic yelanga, amandla akhiqizwa yi-photovoltaic array ngamandla e-DC. Kodwa-ke, imithwalo eminingi idinga amandla e-AC, kanti uhlelo lokuphakelwa kwamandla e-DC lunemikhawulo emikhulu futhi alulungele ukuguqula i-voltage. , ububanzi bokusetshenziswa komthwalo bunqunyelwe, ngaphandle kwemithwalo yamandla ekhethekile, ama-inverter ayadingeka ukuguqula amandla e-DC abe amandla e-AC. I-inverter ye-photovoltaic iyinhliziyo yesistimu yokukhiqizwa kwamandla e-photovoltaic yelanga, eguqula ugesi oqondile okhiqizwa amamojula e-photovoltaic ube ugesi oshintshanayo, bese iwudlulisela kumthwalo wendawo noma kugridi, futhi iyidivayisi kagesi yamandla enemisebenzi yokuvikela ehlobene.
I-solar inverter yakhiwe kakhulu ngamamojula kagesi, amabhodi wesekethe yokulawula, ama-circuit breaker, izihlungi, ama-reactor, ama-transformer, ama-contactor kanye namakhabethe. Inqubo yokukhiqiza ifaka phakathi ukucubungula izingxenye ze-elekthronikhi kusengaphambili, ukuhlanganiswa komshini okuphelele, ukuhlolwa kanye nokupakishwa komshini okuphelele. Intuthuko yayo incike ekuthuthukisweni kobuchwepheshe be-elekthronikhi yamandla, ubuchwepheshe bedivayisi ye-semiconductor kanye nobuchwepheshe bokulawula besimanje.
Kuma-solar inverters, ukuthuthukisa ukusebenza kahle kokuguqulwa kokunikezwa kwamandla kuyindaba ehlala njalo, kodwa lapho ukusebenza kahle kohlelo kukhuphuka kakhulu, cishe cishe ku-100%, ukuthuthukiswa kokusebenza kahle okwengeziwe kuzohambisana nokusebenza okuphansi. Ngakho-ke, indlela yokugcina Ukusebenza kahle okuphezulu, kodwa futhi nokugcina ukuncintisana okuhle kwentengo kuzoba yisihloko esibalulekile njengamanje.
Uma kuqhathaniswa nemizamo yokuthuthukisa ukusebenza kahle kwe-inverter, indlela yokuthuthukisa ukusebenza kahle kwesistimu yonke ye-inverter kancane kancane iba enye inkinga ebalulekile yezinhlelo zamandla elanga. Ku-solar array, lapho kuvela indawo yendawo engu-2%-3% yesithunzi, ku-inverter esebenzisa umsebenzi we-MPPT, amandla okukhipha uhlelo ngalesi sikhathi angase ehle cishe ngo-20% lapho amandla okukhipha empofu. Ukuze uzivumelanise kangcono nesimo esinjengalesi, kuyindlela ephumelela kakhulu yokusebenzisa imisebenzi yokulawula ye-MPPT eyodwa kuya kwenye noma eminingi ye-MPPT kumamojula elanga angawodwa noma angaphelele.
Njengoba uhlelo lwe-inverter lusesimweni sokusebenza okuxhunywe kugridi, ukuvuza kohlelo phansi kuzobangela izinkinga ezinkulu zokuphepha; ngaphezu kwalokho, ukuze kuthuthukiswe ukusebenza kahle kohlelo, iningi lama-solar array lizoxhunywa ngochungechunge ukuze kwakheke i-voltage ephezulu yokuphuma kwe-DC; Ngenxa yokuvela kwezimo ezingavamile phakathi kwama-electrode, kulula ukukhiqiza i-DC arc. Ngenxa ye-voltage ephezulu ye-DC, kunzima kakhulu ukucima i-arc, futhi kulula kakhulu ukubangela umlilo. Ngokwamukelwa kabanzi kwezinhlelo ze-solar inverter, udaba lokuphepha kohlelo luzoba yingxenye ebalulekile yobuchwepheshe be-inverter.
Isikhathi sokuthunyelwe: Ephreli-01-2023
