Sithini isilawuli se-solar charge?
I-solar charge controller (eyaziwa nangokuthi i-solar panel voltage voltage regulator) isilawuli esilawula inqubo yokushaja nokukhipha kusistimu yamandla elanga.
Umsebenzi oyinhloko wesilawuli sokushaja ukulawula ukushaja kwamanje okugeleza kusuka kuphaneli ye-PV kuya ebhethrini, ukugcina amandla agelezayo angabi phezulu kakhulu ukuvimbela ibhange lebhethri ukuthi lingakhokhiswa ngokweqile.
Izinhlobo ezimbili ze-solar charge controller
I-MPPT ne-PWM
Kokubili i-MPPT ne-PWM izindlela zokulawula amandla ezisetshenziswa izilawuli zokushaja ukuze zilawule ukuhamba kwamandla ukusuka kumojula yelanga ukuya ebhethrini.
Nakuba amashaja e-PWM ngokuvamile adingeka ukuthi ashibhile futhi abe nezinga lokuguqulwa elingu-75%, amashaja e-MPPT ayabiza kakhulu ukuwathenga, i-MPPT yakamuva ingakhuphula ngokuphawulekayo izinga lokuguqulwa kufika ku-99%.
Isilawuli se-PWM empeleni siyiswishi exhumanisa i-solar array nebhethri.Umphumela uba ukuthi i-voltage ye-array izodonselwa phansi eduze ne-voltage yebhethri.
Isilawuli se-MPPT siyinkimbinkimbi kakhulu (futhi sibiza kakhulu): sizolungisa i-voltage yaso yokufaka ukuze sithathe amandla amaningi avela kuhlelo lwelanga, bese sihumusha lawo mandla ngezidingo ezahlukene zamandla ebhethri nomthwalo.Ngakho-ke, empeleni ihlukanisa ama-voltages we-array namabhethri, ukuze, isibonelo, kube nebhethri engu-12V ohlangothini olulodwa lwesilawuli sokushaja se-MPPT namaphaneli axhunywe ochungechungeni ukukhiqiza i-36V ngakolunye uhlangothi.
Umehluko phakathi kwe-MPPT kanye nezilawuli zokushaja zelanga ze-PWM ekusetshenzisweni
Izilawuli ze-PWM zisetshenziselwa ikakhulukazi amasistimu amancane anemisebenzi elula namandla aphansi.
Izilawuli ze-MPPT zisetshenziselwa izinhlelo ze-PV ezincane, eziphakathi, nezinkulu, futhi izilawuli ze-MPPT zisetshenziselwa izinhlelo eziphakathi nendawo ezinkulu ezinezidingo zemisebenzi eminingi, njengeziteshi zamandla.
Izilawuli ezikhethekile ze-MPPT zisetshenziswa ezinhlelweni ezincane zangaphandle kwegridi, amakharavani, izikebhe, izibani zasemgwaqweni, amehlo kagesi, izinhlelo ezixubile, njll.
Zombili izilawuli ze-PWM ne-MPPT zingasetshenziselwa izinhlelo ze-12V 24V 48V, kodwa uma amanzi esistimu ephakeme, isilawuli se-MPPT siyisinqumo esingcono.
Abalawuli be-MPPT baphinde basekele izinhlelo ezinkulu ze-high-voltage ezinama-solar panel ochungechungeni, ngaleyo ndlela ukwandisa ukusetshenziswa kwama-solar panel.
Umehluko Wezindleko ze-MPPT kanye Nesilawuli Seshaja Solar se-PWM
Ubuchwepheshe bokuguquguquka kobubanzi be-Pulse bushaja ibhethri ngeshaji egxilile yezigaba ezi-3 (inqwaba, ukuntanta, nokumuncwa).
Ubuchwepheshe be-MPPT wukulandelela okuphezulu futhi bungabhekwa njengokushaja kwezigaba eziningi.
Ukusebenza kahle kokuguqulwa kwamandla kwejeneretha ye-MPPT kuphakeme ngo-30% uma kuqhathaniswa ne-PWM.
I-PMW ifaka amaleveli angu-3 wokushaja:
Ukushaja inqwaba;Ukushaja ukumuncwa;Ukushaja okuntantayo
Lapho ukushaja okuntantayo kuwukugcina kwezigaba ezi-3 zokushaja, okubuye kwaziwe njengokushaja okuconsisayo, futhi kuwukusetshenziswa kwenani elincane lokushaja ebhethrini ngenani eliphansi futhi ngendlela enganyakazi.
Amabhethri amaningi aphinde ashajwe aphelelwa amandla ngemva kokuba eseshajwe ngokugcwele.Lokhu kubangelwa ukuzikhipha.Uma inkokhiso igcinwa isezingeni elifanayo eliphansi njengesilinganiso sokuzikhulula, inkokhiso ingagcinwa.
I-MPPT futhi inenqubo yokushaja enezigaba ezi-3, futhi ngokungafani ne-PWM, i-MPPT inamandla okushintsha ngokuzenzakalelayo ukushaja ngokusekelwe ezimeni ze-PV.
Ngokungafani ne-PWM, isigaba sokushaja ngobuningi sine-voltage yokushaja engaguquki.
Uma ukukhanya kwelanga kunamandla, amandla okukhiphayo eseli ye-PV akhuphuka kakhulu futhi i-charging current (Voc) ingase ifike ngokushesha embundwini.Ngemva kwalokho, izomisa ukushaja kwe-MPPT futhi ishintshele endleleni yokushaja yamanje engashintshi.
Uma ukukhanya kwelanga kuba buthaka futhi kuba nzima ukugcina ukushaja okungapheli, kuzoshintshela ekushajweni kwe-MPPT.futhi ushintshe ngokukhululekile kuze kube yilapho i-voltage ohlangothini lwebhethri ikhuphukela ku-voltage yokugcwaliswa kwe-Ur futhi ibhethri lishintshela ekushajeni kwamandla kagesi njalo.
Ngokuhlanganisa ukushaja kwe-MPPT nokushaja kwamanje kanye nokushintsha okuzenzakalelayo, amandla elanga angasetshenziswa ngokugcwele.
Isiphetho
Kafushane, ngicabanga ukuthi inzuzo ye-MPPT ingcono, kodwa amashaja e-PWM nawo ayadingeka ngabanye abantu.
Ngokusekelwe kulokho ongakubona: nasi isiphetho sami:
Izilawuli zokushaja ze-MPPT zifaneleka kakhulu kubanikazi abangochwepheshe abafuna isilawuli esingenza imisebenzi enzima (amandla asekhaya, amandla e-RV, izikebhe, nezitshalo zamandla eziboshwe ngegridi).
Izilawuli zokushaja ze-PWM zifaneleka kangcono izinhlelo zokusebenza zamandla angaphandle kwegridi ezincane ezingadingi noma yiziphi ezinye izici futhi ezinesabelomali esikhulu.
Uma udinga nje isilawuli sokushaja esilula nesongayo sezinhlelo zokukhanyisa ezincane, izilawuli ze-PWM ngezakho.
Isikhathi sokuthumela: May-04-2023