Yintoni umlawuli welanga?
Umlawuli wentlawulo yelanga (ekwabizwa ngokuba yi-solar panel voltage regulator) ngumlawuli olawula inkqubo yokutshaja kunye nokukhupha kwinkqubo yamandla elanga.
Umsebenzi oyintloko wesilawuli sentlawulo kukulawula umbane wokutshaja ophuma kwiphaneli ye-PV ukuya kwibhetri, ukugcina umbane ojikelezayo ungabi phezulu kakhulu ukukhusela ibhanki yebhetri ukuba ingahlawuliswa kakhulu.
Iintlobo ezimbini zesilawuli sentlawulo yelanga
MPPT & PWM
Bobabini i-MPPT kunye ne-PWM ziindlela zokulawula amandla ezisetyenziswa ngabalawuli bentlawulo yokulawula ukuhamba kwangoku ukusuka kwimodyuli yelanga ukuya kwibhetri.
Ngelixa iitshaja ze-PWM zifunwa ukuba zingabizi mali ininzi kwaye zibe ne-75% yokuguqulwa, iitshaja zeMPPT zibiza imali eninzi kakhulu ukuyithenga, iMPPT yamva nje inokunyusa izinga loguqulo ukuya kuthi ga kwi-99%.
Isilawuli se-PWM ngokusisiseko sisitshixo esidibanisa uluhlu lwelanga kwibhetri.Isiphumo kukuba i-voltage ye-array iya kutsalwa phantsi kufuphi nombane webhetri.
Umlawuli weMPPT unzima kakhulu (kwaye ubiza kakhulu): uya kulungelelanisa i-voltage yegalelo lakhe ukuze athathe amandla amaninzi ukusuka kwi-solar array, kwaye emva koko aguqulele loo mandla kwiimfuno ezahlukeneyo zombane kwibhetri kunye nomthwalo.Ngaloo ndlela, ngokuqinisekileyo i-decouples i-voltages ye-array kunye neebhetri, ukwenzela ukuba, ngokomzekelo, kukho ibhetri ye-12V kwelinye icala lomlawuli wentlawulo ye-MPPT kunye neepaneli ezixhunyiwe kwichungechunge ukuvelisa i-36V kwelinye icala.
Umahluko phakathi kweMPPT kunye nezilawuli zelanga zePWM kwisicelo
Abalawuli be-PWM basetyenziswa ikakhulu kwiinkqubo ezincinci ezinemisebenzi elula kunye namandla aphantsi.
Abalawuli beMPPT basetyenziselwa iinkqubo zePV ezincinci, eziphakathi, kunye nezikhulu, kwaye abalawuli beMPPT basetyenziselwa iinkqubo eziphakathi kunye nezikhulu kunye neemfuno zemisebenzi emininzi, ezifana nezitishi zamandla.
Abalawuli abakhethekileyo beMPPT basetyenziswa kwiinkqubo ezincinci zegridi, iikharavani, izikebhe, izibane zesitalato, amehlo e-elektroniki, iinkqubo ze-hybrid, njl.
Bobabini abalawuli be-PWM kunye ne-MPPT bangasetyenziselwa iinkqubo ze-12V 24V 48V, kodwa xa umbane wenkqubo uphezulu, umlawuli weMPPT ukhetho olungcono.
Abalawuli beMPPT nabo baxhasa iinkqubo ezinkulu ze-high-voltage kunye neepaneli zelanga kwichungechunge, ngaloo ndlela ukwandisa ukusetyenziswa kweepaneli zelanga.
Umahluko weNtlawulelo yeMPPT kunye nePWM yoMlawuli weTshaja yeSola
Itekhnoloji yokumodareyitha kobubanzi be-Pulse itshaja ibhetri kwintlawulo esisigxina yenqanaba eli-3 (isambuku, ukudada, kunye nokufunxa).
Itekhnoloji yeMPPT yincopho yokulandelela kwaye inokuthathwa njengokutshaja kwamanqanaba amaninzi.
Ukusebenza kokuguqulwa kwamandla kwe-MPPT generator yi-30% ephezulu xa kuthelekiswa ne-PWM.
I-PMW ibandakanya amanqanaba ama-3 okutshaja:
Ukutshaja ibhetshi;Ukutshaja ukufunxa;Ukutshaja okudadayo
Apho ukutshaja okudadayo kukwinqanaba lokugqibela kwizigaba ezi-3 zokutshaja, okwakwaziwa njengokutshaja okuncinci, kwaye kukufakwa kwentlawulo encinci kwibhetri ngesantya esiphantsi nangendlela ezinzileyo.
Uninzi lweebhetri ezinokutshajwa kwakhona ziphelelwa ngamandla emva kokuba zigcwaliswe ngokupheleleyo.Oku kubangelwa kukuzikhupha.Ukuba umrhumo ugcinwa kwinqanaba eliphantsi elifanayo njengomlinganiselo wokuzikhupha, umrhumo unokugcinwa.
I-MPPT nayo inenkqubo yokutshaja ye-3, kwaye ngokungafaniyo ne-PWM, i-MPPT inamandla okutshintsha ngokuzenzekelayo ukutshaja ngokusekelwe kwiimeko ze-PV.
Ngokungafaniyo ne-PWM, isigaba sokutshaja isambuku sinombane wokutshaja osisigxina.
Xa ukukhanya kwelanga kunamandla, amandla okuphuma kweseli yePV ayanda kakhulu kwaye umsinga wokutshaja (Voc) unokufikelela ngokukhawuleza kumgubasi.Emva koko, izakumisa ukutshaja kweMPPT kwaye itshintshele kwindlela yokutshaja engaguqukiyo yangoku.
Xa ukukhanya kwelanga kuba buthathaka kwaye kunzima ukugcina ukutshaja rhoqo kwangoku, kuya kutshintshela kwi-MPPT yokutshaja.kwaye utshintshe ngokukhululekileyo de amandla ombane kwicala lebhetri anyukele kwivoltheji yesaturation ye-Ur kwaye ibhetri itshintshela kwi-voltage yokutshaja rhoqo.
Ngokudibanisa ukutshaja kweMPPT kunye nokutshaja rhoqo-ngoku kunye nokutshintsha ngokuzenzekelayo, amandla elanga angasetyenziswa ngokupheleleyo.
Ukuqukumbela
Isishwankathelo, ndicinga ukuba inzuzo yeMPPT ingcono, kodwa iitshaja ze-PWM nazo zifunwa ngabanye abantu.
Ngokusekwe kwinto oyibonayo: nasi isiphelo sam:
Abalawuli bentlawulo ye-MPPT bafaneleke kakhulu kubanini abaqeqeshiweyo abafuna umlawuli onokwenza imisebenzi enzima (amandla asekhaya, amandla eRV, izikhephe, kunye nezityalo zamandla eziboshwe ngegridi).
Izilawuli zentlawulo ye-PWM zezona zilungele usetyenziso lwamandla amancinci angaphandle kwegridi engadingi naziphi na ezinye iimpawu kwaye anohlahlo lwabiwo-mali olukhulu.
Ukuba ufuna nje isilawuli sentlawulo esilula kunye nesoqoqosho kwiinkqubo zokukhanyisa ezincinci, ke abalawuli be-PWM benzelwe wena.
Ixesha lokuposa: May-04-2023