Kwinkqubo edibeneyo yegridi yelanga, ixesha kunye nemozulu iya kubangela utshintsho kwimitha yelanga, kwaye i-voltage kwindawo yamandla iya kutshintsha rhoqo. Ukuze ukwandise umbane owenziweyo, kuqinisekiswa ukuba iipaneli zelanga zinokuhanjiswa ngeyona nto iphezulu xa ilanga libuthathaka kwaye linamandla. Amandla, ngokuqhelekileyo inkqubo yokunyusa ukunyusa yongezwa kwi-inverter ukwandisa i-voltage kwindawo yayo yokusebenza.
Olu luhlu luncinci lulandelayo luchaza ukuba kutheni kufuneka usebenzise i-boost boost, kwaye indlela yokonyusa inkqubo inokunceda njani inkqubo yamandla elanga ukunyusa ukuveliswa kwamandla.
Kutheni Ukhuthaza iSekethe?
Okokuqala, makhe sijonge inkqubo ye-inverter eqhelekileyo kwimarike. Ibandakanya i-boost boost circuit kunye ne-inverter circuit. Umbindi uqhagamshelwe ngebhasi yeDC.
Isekethe ye-inverter kufuneka isebenze ngokufanelekileyo. Ibhasi ye-DC kufuneka ibe phezulu kune-grid voltage peak (inkqubo yesigaba esithathu iphezulu kunexabiso eliphakamileyo le-voltage yomgca), ukwenzela ukuba amandla abe nokukhutshwa kwigridi phambili. Ngokwesiqhelo ukusebenza kakuhle, ibhasi yeDC itshintsha ngokubanzi ngevoltheji yegridi. , ukuqinisekisa ukuba iphezulu kunegridi yamandla.
Ukuba i-voltage yepaneli iphezulu kune-voltage efunekayo ye-busbar, i-inverter iya kusebenza ngokuthe ngqo, kwaye i-voltage ye-MPPT iya kuqhubeka ilandelela kwinqanaba eliphezulu. Nangona kunjalo, emva kokufikelela kubuncinci bemfuno yombane webhasi, ayinakuncitshiswa kwakhona, kwaye indawo ephezulu yokusebenza ayinakufezekiswa. Umda weMPPT uphantsi kakhulu, nto leyo inciphisa kakhulu ukusebenza kokuveliswa kwamandla kwaye inzuzo yomsebenzisi ayinakuqinisekiswa. Ke kufuneka kubekho indlela yokwenza le ntsilelo, kwaye iinjineli zisebenzisa iBoost boost circuits ukuphumeza oku.
IBoost Boost njani indawo yeMPPT ukunyusa ukuveliswa kwamandla?
Xa i-voltage yepaneli iphezulu kune-voltage efunwa yi-busbar, i-booster booster circuit ikwindawo yokuphumla, amandla ahanjiswa kwi-inverter ngokusebenzisa i-diode yayo, kwaye i-inverter igqiba ukulandelwa kwe-MPPT. Emva kokufikelela kumbane ofunekayo we-busbar, i-inverter ayikwazi ukuthatha. IMPPT isebenzile. Ngeli xesha, icandelo le-boost boost lithatha ulawulo lweMPPT, lilandelela iMPPT, kwaye liphakamise i-busbar ukuqinisekisa umbane wayo.
Ngoluhlu olubanzi lokulandelwa kwe-MPPT, inkqubo ye-inverter inokudlala indima ebalulekileyo ekwandiseni i-voltage yeepaneli zelanga ekuseni, isiqingatha sobusuku, kunye neentsuku zemvula. Njengoko sinokubona kumzobo ongezantsi, amandla exesha langempela ayabonakala. Yazisa.
Kutheni i-inverter enkulu yamandla ihlala isebenzisa iisekethe ezininzi zokunyusa i-Boost ukwandisa inani leesekethe zeMPPT?
Ngokomzekelo, inkqubo ye-6kw, ngokulandelanayo i-3kw ukuya kumaphahla amabini, ii-MPPT inverters ezimbini kufuneka zikhethwe ngeli xesha, kuba kukho iindawo ezimbini zokusebenza ezizimeleyo ezizimeleyo, ilanga lentsasa liphuma empuma, ukuchaswa ngokuthe ngqo kwi-A surface Kwiphaneli yelanga. , i-voltage kunye namandla kwicala le-A liphezulu, kwaye icala le-B liphantsi kakhulu, kwaye intambama ichasene. Xa kukho umahluko phakathi kwee-voltages ezimbini, i-voltage ephantsi kufuneka inyuswe ukuze kuhanjiswe amandla ebhasi kwaye kuqinisekiswe ukuba isebenza kwindawo ephezulu yamandla.
Isizathu esifanayo, indawo enenduli kwindawo enzima ngakumbi, ilanga liya kufuna i-irradiation engaphezulu, ngoko ifuna i-MPPT ezimeleyo, ngoko ke amandla aphakathi kunye aphezulu, njenge-inverters ye-50Kw-80kw ngokubanzi i-3-4 i-Boost ezimeleyo, ihlala ithi. 3-4 MPPT ezimeleyo.