Ama-solar DC circuit breakers: ukuqinisekisa ukuphepha nokusebenza kahle
Njengoba isidingo samandla avuselelekayo siqhubeka nokukhula, amandla elanga asephenduke inketho yokukhiqizwa kwamandla ethandwayo futhi eqhubekayo. Njengoba izinhlelo ze-solar photovoltaic (PV) ziya zithandwa kakhulu, isidingo sama-DC circuit breaker athembekile futhi asebenzayo sesibaluleke kakhulu kunanini ngaphambili. Lawa ma-circuit breaker adlala indima ebalulekile ekuqinisekiseni ukuphepha nokusebenza kahle kokufakwa kwakho kwelanga.
Ama-circuit breaker e-DC aklanyelwe ngqo ukuvikela ama-circuit ezinhlelweni ze-solar photovoltaic ngokuphazamisa ugesi we-DC uma kwenzeka ukugcwala ngokweqile, i-short circuit, noma enye iphutha likagesi. Ziyizingxenye ezibalulekile ezisiza ukuvimbela ukulimala kohlelo futhi ziqinisekise ukuphepha kwemishini nabasebenzi ababandakanyeka ekufakweni nasekugcinweni kohlelo lwelanga.
Omunye wemisebenzi ebalulekile ye-DC circuit breaker ekusetshenzisweni kwelanga ukuhlukanisa izingxenye ezinephutha noma ezingasebenzi kahle ohlelweni. Ngokuphazamisa ngokushesha ukuhamba kukagesi, lezi zi-circuit breaker zisiza ekuvimbeleni umonakalo ongaba khona kumaphaneli elanga, ama-inverter, nezinye izingxenye ezibalulekile. Lokhu akugcini nje ngokuvikela ukutshalwa kwezimali ezinhlelweni zamandla elanga, kodwa futhi kunciphisa nengozi yemililo nezingozi zikagesi.
Ngaphezu kokucabangela ukuphepha, ama-DC circuit breaker adlala indima ebalulekile ekwenzeni ngcono ukusebenza kanye nokusebenza kahle kwezinhlelo ze-solar PV. Ama-circuit breaker enza ukulungiswa kanye nokuxazulula izinkinga kube lula ngokunikeza indlela yokukhipha izingxenye ezithile zesistimu, njengezintambo zamaphaneli elanga noma ama-subarrays ngamanye. Leli khono libaluleke kakhulu ekufakweni okukhulu kwelanga, lapho ukuhlonza kanye nokuxazululwa kwezinkinga ngesikhathi kungaba nomthelela omkhulu ekukhiqizweni kwamandla jikelele.
Uma ukhetha i-DC circuit breaker yokusetshenziswa kwelanga, kunezici eziningana okufanele uzicabangele ukuqinisekisa ukuhambisana nokuthembeka. Lokhu kufaka phakathi izilinganiso ze-voltage kanye nezamanje, uhlobo lwamaphaneli elanga kanye nama-inverter asetshenziswayo, izimo zemvelo kanye nokuhambisana nezindinganiso nemithethonqubo yemboni efanele. Ama-circuit breaker aklanywe futhi ahlolwe ngokukhethekile ukuthi asetshenziswe nezinhlelo ze-solar photovoltaic kumele akhethwe ukuqinisekisa ukusebenza kahle nokuphepha.
Ngaphezu kwalokho, intuthuko kubuchwepheshe be-DC circuit breaker iye yenza kwaba lula ukuthuthukiswa kwezixazululo eziyinkimbinkimbi nezihlakaniphile ezenzelwe ukusetshenziswa kwelanga. Isibonelo, amanye ama-DC circuit breaker esimanje afakwe amakhono okuqapha nokuxhumana akhelwe ngaphakathi avumela ukuqapha isimo esikude kanye nokuxilonga. Leli zinga lokusebenza liwusizo kakhulu ekuboneni izinkinga ezingaba khona kanye nokwenza ngcono ukusebenza kwesistimu yakho yelanga.
Njengoba imboni yelanga iqhubeka nokukhula, isidingo sama-DC circuit breaker anokuphepha okukhulu, ukuthembeka kanye nokusebenza kahle sizoqhubeka nokukhula. Abakhiqizi nabaphakeli basabela kulesi sidingo ngokuthuthukisa izixazululo ezintsha ezihlangabezana nezidingo ezithile zokufakwa kwe-solar PV. Kusukela kumiklamo emincane ye-modular kuya kuzici zokuvikela ezithuthukisiwe, la ma-circuit breaker aklanyelwe ukuhlangabezana nezidingo ezihlala zishintsha zemboni yelanga.
Ngamafuphi, i-DC circuit breaker iyisici esibalulekile sohlelo lwe-solar photovoltaic futhi iyithuluzi elibalulekile lokuphepha kanye nomgqugquzeli wokusebenza kahle. Ngokukhetha ama-circuit breaker afanele nokuwahlanganisa ngempumelelo ekufakweni kwamandla elanga, ababambiqhaza bangaqinisekisa ukuthembeka nokusebenza kwesikhathi eside kwezinhlelo zabo. Njengoba imboni yelanga ithuthuka, ama-DC circuit breaker azoqhubeka nokudlala indima ebalulekile ekusekeleni ukukhula nokusimama kwamandla elanga.
Isikhathi sokuthunyelwe: Juni-03-2024