Ingaba ii-photovoltaic inverters zimelana njani namaqondo obushushu angaphezu kwama-40°C?

Ngeli hlotyeni, imimandla emininzi kulo lonke elaseTshayina ikhuphe izilumkiso ezibomvu malunga nobushushu obugqithisileyo, kunye namaqondo obushushu emini kwizixeko ezininzi asondela kuma-40°C, edala iimeko ezisikhumbuza 'iziko lomlilo'. Kwezi meko zigqubayo, nabantu bayasokola ukushiya iindawo ezinomoya, ngelixa izixhobo ze-photovoltaic ezisebenza ngaphandle zijongene nemingeni enkulu. Ngokukodwa malunga 'yingqondo engundoqo' yeenkqubo ze-photovoltaic - i-inverter. Ingaba ezi zixhobo zimelana njani nobushushu obugqithisileyo?

Konakala kangakanani ubushushu obuphezulu kumalungu e-inverter?

Ii-inverters ze-Photovoltaic zizixhobo ezintsonkothileyo ezidibanisa uninzi lwezixhobo ze-elektroniki ezichanekileyo, kubandakanywa iindawo eziphambili ezifana ne-inductors, ii-capacitors, kunye neemodyuli ze-semiconductor zamandla. Amaqondo obushushu aphezulu angonakalisi nje ukusebenza kakuhle kwala malungu kodwa anyusa isantya sokuguga kwawo, anciphise ubomi bawo, kwaye asenokude abangele ukusilela kwesixhobo.

Abaqhubi: Kwiindawo zobushushu obuphezulu, ii-inductors zigcwala ngokulula, zinciphisa inductance yazo egcweleyo. Oku kukhokelela ekunyukeni kweencopho zangoku, ukunyusa umngcipheko wokudlula ngokugqithisileyo kunye nokutshisa izixhobo zombane.

Abaphathi: I-Aluminiyam i-electrolytic capacitors, ngokukodwa, ivakalelwa kakhulu kwiqondo lokushisa. Idatha ibonisa ukuba yonke i-10 ° C yonyuka kwiqondo lokushisa le-ambient, ubomi babo bube sisiqingatha. Nangona ii-capacitors zefilimu zibonisa ukumelana nobushushu obuphezulu, iindleko kunye nobungakanani bezithintelo zinciphisa ukwamkelwa kwazo ngokubanzi.

Iimodyuli zamandla: Kwiitshiphu zamandla ezifana nee-IGBTs kunye nee-MOSFET, 'iqondo lobushushu lokuhlangana' lisebenza njengomgangatho obalulekileyo wokusebenza. Nje ukuba iqondo lobushushu letshiphu ligqithise kumda walo, 'ukuqhekeka kwe-thermal' kwenzeka, okubangela ukuvalwa kwe-inverter ngokuthe ngqo.

Uyilo lweThermal: Isixhobo esiyimfihlo soMenzi we-Inverter

Ukuqinisekisa ukusebenza okuzinzile kwiindawo eziphezulu zokushisa, i-photovoltaic inverters zisebenzisa iinkqubo zokulawula ukushisa ezicwangcisiweyo. Umgaqo ongundoqo kukugcina icandelo ngalinye ngaphakathi koluhlu lobushushu olwamkelekileyo.

Iindlela eziqhelekileyo zolawulo lwe-thermal ziquka:

Iinkqubo zokupholisa umoya: Ixhotyiswe ngeefeni ezikrelekrele eziguquguqukayo ezilungelelanisa ngokuzenzekelayo ukuhamba komoya ngokusekwe kuguquko lwangaphakathi lobushushu, ukulinganisa ukupholisa okuguquguqukayo kunye nokusebenza kakuhle kwamandla kunye nokunciphisa ingxolo.

Ukwandiswa kobushushu bokutshona: Ukuphucula ukusebenza kakuhle kotshintshiselwano lwe-thermal ngokunyusa indawo ye-thermal-conductivity ephezulu, ukulungiswa kwezakhiwo (umzekelo, i-serrated fin designs), kunye nokusebenzisa imathiriyeli ephezulu ye-thermal-conductivity.

Uyilo lwe-chassis oludityanisiweyo: Ngokunyukayo, ii-inverters zeprimiyamu zisebenzisa i-aluminium alloy die-casting ukuhlanganisa izakhiwo zokulahla ubushushu kunye ne-chassis. Idityaniswe nejeli ye-silicone ye-thermal kunye nokusabalalisa ukushisa, oku kuququzelela ukukhutshwa kobushushu okukhawulezayo.

Umzekelo, ii-inverters ezithile 'ezinyamezela ubushushu obuphezulu' zineenkqubo zokupholisa ze-inshorensi ezimbini eziquka amaphiko angasemva kunye neefeni ezikrelekrele. Oku akuphuculi nje ukuguquguquka kwiimeko ezigqithisileyo kodwa kuqinisekisa ukuzinza kwenkqubo yexesha elide.

I-Inverter Heat Protection Strategy: Ukubeka phambili uFakelo kunye noLondolozo

Ngaphandle kokuxhathisa ubushushu obuphezulu, iindawo ezifanelekileyo zofakelo kunye nokugcinwa okucokisekileyo kwesiqhelo kubalulekile ngokulinganayo.

Imiba yoKhetho lwesiza: Faka ii-inverters kwiindawo ezinomoya opholileyo okhuselekileyo ekukhanyeni kwelanga. Ufakelo lwangaphandle, cinga ukongeza i-sunshades ukunciphisa ukukhanya kwelanga kunye nemvula. Xa unyusela ii-inverters ezininzi ngapha nangapha, qinisekisa ukuba isithuba esaneleyo sokwenza lula ukutshatyalaliswa kobushushu.

Ukucoca rhoqo kubalulekile: Kwiindawo ezinobushushu obuphezulu, uthuli luqokelelana ngokulula kwiisinki zobushushu kunye neefeni, ezibeka esichengeni ukusebenza kakuhle kokupholisa. Kuyacetyiswa ukuba uhlole inkqubo yokupholisa ubuncinci inyanga nenyanga ukuqokelela uthuli okanye ukuvaleka kwezinto zangaphandle, kuqhutywe ukucoca ngokukhawuleza apho kuyimfuneko.

Jonga imeko yokusebenza: Rhoqo jonga isibonisi soguqulo, izikhombisi ze-LED, kunye neenkqubo zokubeka iliso ezikude kwizilumkiso ezifana 'nezilumkiso zobushushu obugqithisileyo' okanye 'ukungasebenzi kakuhle kweefeni'. Ukuba kukho nakuphi na ukungahambi kakuhle, phanda ngokukhawuleza kwaye uqhagamshelane nenkxaso yokuthengisa emva kokuthengisa ukuba kuyimfuneko.

Iingcinga zokugqibela: Amaqondo obushushu aphezulu ayisosenzo sikaThixo, kodwa luvavanyo lwe-litmus kuyilo lwenkqubo

Njengoko amaza obushushu ehlotyeni esanda minyaka le kulo lonke elase-China, ukomelela kobushushu be-inverter kuye kwaba luphawu olubalulekileyo lokuthembeka kwemveliso. Kubanikazi bezityalo ze-PV kunye nabasebenzi be-O&M, ukukhetha ii-inverters ezikumgangatho ophezulu ezinolawulo oluphezulu lwe-thermal kubalulekile ekuqinisekiseni inzuzo yenkqubo kunye nokuzinza.

Amaqondo obushushu aphezulu ayilotshaba—ukungalungeli. Masikhusele ii-inverters zethu ze-PV 'ngekhaka le-heatwave' ukuze zimelane namaza atshisayo ehlobo, siqinisekisa ukuba yonke i-kilowatt-yure yamandla aluhlaza ihanjiswa ngokuthembekileyo.