Ukuthenga iMPPT yoMlawuli waMandla eSolar: Yonke into ekufuneka uyazi

Kutshanje, abantu abaninzi bebesiya kumandla ahlaziyekayo ukuze basindise indalo. Omnye wemithombo yamandla ahlaziyekayo esetyenziswa kakhulu ngamandla elanga. Ngokufakela ilanga, umntu ufuna i-solar umlawuli wecala ukulawula amandla ombane kunye ne-amperage ehanjiswa kwimithwalo. Uninzi lwabathengi kusenokwenzeka ukuba abazange basebenzise izilawuli zentlawulo yelanga ngaphambili kwaye banokuzibuza ukuba kuyafuneka kwaye, ukuba kunjalo, ukuba bathenge yeyiphi.

Eli nqaku liza kuphonononga ukuba ngabaphi abalawuli bentlawulo ye-MPPT, basebenza njani, mabajonge ntoni xa ukhetha izilawuli zentlawulo yelanga, kunye noncedo lwesilawuli sentlawulo seMPPT.

Isiqulatho
Yintoni umlawuli wentlawulo weMPPT?
Izinto ekufuneka ziqwalaselwe xa uthenga iMPPT
Iindidi ezahlukeneyo zabalawuli bentlawulo yelanga
isiphelo

Yintoni umlawuli wentlawulo weMPPT?

 Ulawulo lokutsalwa kwelanga lubalulekile kufakelo lwelanga. Abalawuli bentlawulo ibhetri yelanga iitshaja eziqhagamshelwe kwiipaneli zelanga kunye nebhetri. Umlawuli wentlawulo yelanga ulawula imveliso kumthwalo kunye neebhetri, ukuqinisekisa ukuba zisebenza ngokufanelekileyo kwaye azihlawulisi kakhulu.

Abalawuli bentlawulo ye-Maxim Power Point Tracking (MPPT) yenye yezona zilawuli zelanga ezidumileyo kwiimarike. I-MPPT inkulu ekudaleni ukufakwa kwelanga okusebenzayo kunye nokuqhubela phambili. I-MPPT sisilawuli esikhulu sentlawulo yelanga, kwaye isetyenziswa kwiinkqubo ezinkulu zamandla angaphandle kwegridi enezixhobo zelanga.

Izilawuli zentlawulo yelanga zilinganiswe ngokuhambelana nomthamo ophezulu wokufaka i-voltage kunye neyona ntlawulo iphezulu yangoku. Ukulinganisa kugqiba inani leepaneli zelanga ezixhunyiwe kwisilawuli sentlawulo.

I-MPPT iguqula amandla ombane aphezulu ukusuka kwiipaneli zelanga ukuya kumbane ophantsi ofunekayo ukutshaja iibhetri. I-MPPT ibeka iliso kwaye ilungelelanise igalelo lokulawula i-solar system yangoku. Bandisa ukusebenza kakuhle kwemveliso, kwaye umntu unokulindela izinga le-90% nangaphezulu.

Isebenza njani iMPPT?

The umgaqo wokusebenza weMPPT kulula noko; I-voltage yepaneli kunye neyangoku iyahluka ngenxa yobuninzi bokukhanya kwelanga kwiipaneli zelanga ezifumana emini. Ukufumana amandla amaninzi, iMPPT ifumana eyona ndibaniselwano yamandla ombane kunye neyangoku ukuvelisa amandla aphezulu.

Ihlala ilandelela kwaye ilawula amandla ombane we-PV ukuvelisa awona mandla anamandla, kungakhathaliseki ukuba iimeko zemozulu okanye ixesha losuku. Oku kwandisa ukusebenza kakuhle kunye namandla avelisiweyo ukuya kuthi ga kwi-30% ngaphezulu komlawuli wentlawulo we-PWM.

Izinto ekufuneka ziqwalaselwe xa uthenga iMPPT

Xa kuthengwa isilawuli setshaja yelanga, abathengi kufuneka baqwalasele izinto ezininzi. Eminye yale miba ibandakanya:

Imithwalo

Xa uthenga isilawuli setshaja yelanga, into yokuqala umntu ekufuneka ayithathele ingqalelo kukuba zingaphi izixhobo zombane ekufuneka zisebenze kwaye ixesha elingakanani. Umlinganiselo wamandla wesixhobo ubala umthwalo oqikelelweyo (W) ophindaphindwe ngomndilili wexesha lokubaleka kwiiyure okanye umyinge wokutsalwa kwangoku (A) ophindwe ngomndilili wexesha lokusebenza (hr).

• Amandla afunekayo kwi Iiyure zeWatt (Wh) = Amandla (W) × Ixesha (iiyure)
• Amandla afunekayo ngaphakathi Amp-iiyure (Ah) = IiAmps (A) × Ixesha (iiyure)

Emva kokubala umthwalo oqikelelweyo kwisixhobo ngasinye, uyongeza ukuze ufumane uqikelelo lwemfuneko yamandla ngosuku.

Ubungakanani benkqubo yelanga

IMPPT kufuneka iphantse ifane Ubungakanani njengenkqubo yelanga. Ukuba uyawazi amandla elanga ewonke kwii-watts kunye nombane webhetri, unokujonga obona buninzi bangoku benkqubo usebenzisa le fomula ilandelayo:

Okwangoku (A) = Amandla (W) / Voltage okanye (I = P/V)

Iipros and cons of MPPT solar charge controller

eziluncedo: 

• Ukubeka iliso ngokunyanisekileyo iimeko zeepaneli ezikhokelela kumanqanaba aphezulu okusebenza
• Yenza ngcono xa ibhetri iphantsi
• Eyona ndawo ibandayo kunye namafu
• Ifanelekile kwiinkqubo ezinkulu
• Isebenza xa amandla ombane ebhetri engaphantsi kombane welanga

bendlela:

• Ibiza kakhulu kunabalawuli be-PWM; banokubiza ukuya kuthi ga kwi-US $230, ngelixa i-PWM inokubiza kancinci njenge-US $30.
• Yiba nexesha elifutshane lokuphila ngenxa yezinto ezininzi

Iindidi ezahlukeneyo zabalawuli bentlawulo yelanga

Kukho iintlobo ezine zezilawuli zentlawulo yelanga. Bahlelwa ngendlela abayisebenzisayo ukulawula intlawulo ukusuka kwiipaneli zelanga ukuya kwiibhetri. Ezi ndidi zine zezi:

• Izilawuli zentlawulo ye-Shunt
• Iintlobo zechungechunge zihlawulisa abalawuli
• Izilawuli zentlawulo yokuguqulwa kobubanzi be-Pulse
• abalawuli bentlawulo yeMPPT

Ezona zixhaphakileyo yi-PWM kunye neMPPT, abalawuli bentlawulo.

I-PWM kunye ne-MPPT ye-solar charge control control comparison

Ukumodareyitha kobubanzi be-Pulse (PWM) izilawuli zentlawulo yelanga zinonxibelelwano oluthe ngqo ukusuka kuluhlu lwelanga ukuya kwibhetri. Basebenzisa inguqu elula, ekhawulezayo yolawulo lwentlawulo yelanga. Iswitshi ivula de ibhetri ifike kumbane wentlawulo yokufunxa. Iswitshi emva koko ivula kwaye ivale ngokukhawuleza- amakhulu amaxesha ngesekhondi ukumodareyitha yangoku kunye nokugcina amandla ombane ebhetri.

I-PWM iyasebenza kodwa yehlisa amandla ombane wepaneli yelanga ukuze ihambelane nombane webhetri. Oku kunciphisa amandla epaneli yelanga, kwaye ngokulandelelana, ukusebenza kakuhle kwayo njengoko ipaneli ingekho kumbane osebenza kakhulu.

Umzekelo wesilawuli sentlawulo ye-PWM yiShinefar PWM yolawulo lwelanga. Inomlinganiselo ophezulu wangoku we-60A kunye nebhetri ngaphezu kokukhusela i-voltage ye-66V. I-PWM ingabizi kakhulu kwaye umntu unoku-odola ukuya kumaqhekeza angamashumi amahlanu kunye nexesha elihamba phambili leentsuku ezilishumi elinesibini. Zisenokwenziwa ngokwezifiso ukuba ukhetha ukuba nelogo yenkampani kwimveliso.

I-PWM ingcono xa umntu efuna inketho enexabiso eliphantsi kwiisistim ezincinci kubuninzi be-12V. Zingcono xa i-solar panel enye okanye ezimbini zisetyenziselwa imithwalo elula efana nokukhanyisa, ukutshaja ifowuni, kunye nokumisa inkampu. Ngokwahlukileyo, iMPPT isetyenziselwa imithwalo emikhulu kunye noluhlu lweepaneli zelanga.

KUFUNEKA MPPT kunye neSuntree PWM uthelekiso lwesilawuli selanga

Ukukhetha esona silawuli sentlawulo yelanga kubathengi

Xa ukhetha abalawuli belanga abagqwesileyo kwisitokhwe, umntu kufuneka aqwalasele abathengi abajolise kubo. Indawo yomthengi ibalulekile. Ukuba abathengi bakwindawo ebandayo kunye namafu, isitokhwe seMPPT abalawuli belanga. Aba balawuli basebenza ngcono kwiindawo ezibandayo kwaye bandise amandla, banike umsebenzisi ubuninzi bokusebenza kwamandla.

Ubungakanani bomthwalo bubalulekile ekufumaneni olona lawulo lwetshaja yelanga. Ukuba umthengi unomthwalo omncinci, unokusebenzisa i-PWM; nangona kunjalo, ukuba umthwalo oqikelelweyo uphezulu, eyona ndlela ingcono yiMPPT. Uyakwazi ukugcina i KUFUNEKA MPPT isilawuli sentlawulo yelanga njengoko yenye yezona zinto zibalaseleyo kwimarike enamandla amakhulu e-PV ye-600W kunye ne-PV ephezulu yombane we-130V.

isiphelo

IMPPT ibalulekile kufakelo lwelanga. Inceda ukulawula i-voltage kunye ne-amperage ehanjiswa kumthwalo. Izilawuli zelanga zeMPPT zisebenza kakuhle kuluhlu lwepaneli zesola ezinkulu kwaye zisebenza kakuhle ngombane ophantsi webhetri nakwiindawo ezibandayo, ezinamafu.

Fumana ulwazi oluthe kratya kwi umoya ovuselelekayo kunye nemithombo yayo evela Cooig.com.