Yisiphi isici sohlelo lwe-PV solar esisebenzisa i-MPPT?
Context:Ukulandelela iphuzu lamandla amakhulu (i-MPPT) noma kwesinye isikhathi ukulandelela iphuzu lamandla (PPT), kuyindlela esetshenziswa ngemithombo yamandla eguquguqukayo ukukhulisa ukukhishwa kwamandla njengoba izimo zihluka. Le nqubo isetshenziswa kakhulu ngezinhlelo zelanga ze-photovoltaic (PV), kodwa ingasetshenziswa futhi ngama-wind turbines, ukudluliswa kwamandla kagesi kanye ne-thermophotovoltaics.  Izinhlelo ze-PV zelanga zinobudlelwano obuhlukahlukene nezinhlelo ze-inverter, amanethiwekhi angaphandle, amabhange ebhethri, neminye imithwalo kagesi. Inkinga eyinhloko ebhekiswe yi-MPPT ukuthi ukusebenza kahle kokudluliswa kwamandla kusuka kuseli elanga kuncike enanini lokukhanya kwelanga okutholakalayo, umthunzi, izinga lokushisa kwephaneli yelanga kanye nezici zikagesi zomthwalo. Njengoba lezi zimo ziyahlukahluka, izici zomthwalo (impedance) ezinikeza ushintsho oluphakeme kakhulu lokudluliswa kwamandla. Isistimu yenziwa ibe ngcono lapho isimo somthwalo sishintsha ukuze kugcinwe ukudluliswa kwamandla kusebenza kahle kakhulu. Lesi sici somthwalo omuhle kakhulu sibizwa ngokuthi iphuzu lamandla amakhulu (MPP). I-MPPT inqubo yokulungisa isici somthwalo njengoba izimo zishintsha. Ama-circuits angaklanywa ukuze anikeze imithwalo efanelekile kumaseli e-photovoltaic bese eguqula i-voltage, i-current, noma imvamisa ukuze ihambisane namanye amadivayisi noma amasistimu.  Ubuhlobo obungekho emgqeni bamaseli elanga phakathi kwamazinga okushisa nokumelana okuphelele kungahlaziywa kususelwa ku-current-voltage (I-V) curve kanye ne-power-voltage (P-V) curves. I-MPPT ithatha amasampula okukhipha iseli bese isebenzisa ukumelana okufanele (umthwalo) ukuthola amandla amakhulu. Amadivayisi e-MPPT ngokuvamile ahlanganiswe ohlelweni lokuguqula amandla kagesi olunikeza ukuguqulwa kwamandla kagesi noma kwamanje, ukuhlunga, nokulawula ukushayela imithwalo ehlukahlukene, kufaka phakathi amanethiwekhi kagesi, amabhethri, noma izinjini. Ama-inverter elanga aguqula amandla e-DC abe amandla e-AC futhi angahlanganisa i-MPPT.  Amandla e-MPP (Pmpp) awumkhiqizo we-MPP voltage (Vmpp) kanye ne-MPP current (Impp).  Ngokuvamile, ijika le-P-V lezinhlaka zelanga ezifihliwe ngokwengxenye lingaba neziqongo eziningi, futhi amanye ama-algorithm angagcina engaphansi kwesilinganiso esiphezulu sendawo kunesilinganiso esiphezulu sejika.
Idivayisi ye-MPPT ivame ukuhlanganiswa ohlelweni lokuguqula amandla kagesi. Isistimu yokuguqula amandla kagesi ibhekene nokuxhumana kwamandla kagesi nokwamanje njenge-DC kuya ku-AC solar inverter.