I-inverter, eyaziwa ngokuba ngumlawuli wamandla kunye nomlawuli wamandla, yinxalenye ebalulekileyo yenkqubo ye-photovoltaic.Umsebenzi oyintloko we-photovoltaic inverter kukuguqula umbane othe ngqo owenziwe yipaneli yelanga kwi-alternating current esetyenziswa zizixhobo zasekhaya.Ngokusebenzisa i-circuit-bridge epheleleyo, iprosesa ye-SPWM isetyenziselwa ukumodareyitha, ukucoca, ukunyusa, njl., Ukufumana amandla e-AC sinusoidal ahambelana nomthamo wokukhanya okukhanyisayo, i-voltage elinganisiweyo, njl njl kumsebenzisi wokugqibela wenkqubo.Nge-inverter, ibhetri ye-DC ingasetyenziselwa ukubonelela ngombane we-AC kwisixhobo.
Inkqubo yokuvelisa amandla elanga ye-AC yenziwe ngeepaneli zelanga, izilawuli zentlawulo, ii-inverters kunye neebhetri;inkqubo yokuvelisa amandla elanga ye-DC ayiquki ii-inverters.Inkqubo yokuguqula amandla e-AC abe ngamandla e-DC kuthiwa lulungiso, isekethe egqibezela umsebenzi wolungiso ibizwa ngokuba yi-rectifier circuit, kwaye isixhobo esiqonda inkqubo yolungiso sibizwa ngokuba sisixhobo sokulungisa okanye isilungisi.Ngokuhambelanayo, inkqubo yokuguqula amandla e-DC kumandla e-AC ibizwa ngokuba yi-inverter, isekethe egqibezela umsebenzi we-inverter ibizwa ngokuba yi-inverter circuit, kunye nesixhobo esiqonda inkqubo yokuguqula ibizwa ngokuba yi-inverter isixhobo okanye inverter.
Ingundoqo yesixhobo se-inverter yisekethe yokuguqula i-inverter, ebizwa ngokuba yi-inverter circuit ifutshane.Isekethe igqibezela umsebenzi we-inverter ngokuvula kunye nokucima umbane wombane wombane.Ukucinywa kwezixhobo zokutshintsha i-elektroniki kufuna ii-pulses ezithile zokuqhuba, kwaye ezi pulse zinokuhlengahlengiswa ngokutshintsha isignali yombane.Iisekethe ezivelisa kunye nemeko yee-pulses zihlala zibizwa ngokuba ziisekethe zokulawula okanye iilophu zokulawula.Isakhiwo esisisiseko sesixhobo sokuguqula i-inverter sibandakanya isiphaluka sokukhusela, i-circuit ye-output, i-input circuit, i-output circuit, kunye nezinto ezifana nezo zikhankanywe ngasentla kwi-inverter circuit kunye ne-control control circuit.
I-inverter ayinayo kuphela umsebenzi we-DC-AC yokuguqulwa, kodwa inomsebenzi wokwandisa ukusebenza kweseli yelanga kunye nomsebenzi wokukhusela inkqubo yokungaphumeleli.Isishwankathelo, kukho ukusebenza okuzenzekelayo kunye nokuvalwa komsebenzi, ubuninzi bolawulo lokulawula ukulandelwa kwamandla, umsebenzi wokusebenza ochasene nokuzimela (kwinkqubo edityanisiweyo yegridi), umsebenzi wokulungelelanisa umbane ozenzekelayo (kwinkqubo edityanisiweyo yegridi), umsebenzi wokufumanisa i-DC (ukudibanisa igridi). inkqubo), i-DC yokubona i-Fanction grounding (yenkqubo edityaniswe kwigridi).Nantsi intshayelelo emfutshane yokusebenza ngokuzenzekelayo kunye nemisebenzi yokuvala kunye nomsebenzi wokulawula ukulandelwa kwamandla aphezulu.
1. Ukusebenza ngokuzenzekelayo kunye nomsebenzi wokuvala: Emva kokuphuma kwelanga ekuseni, amandla emitha yelanga ayanda ngokuthe ngcembe, kwaye imveliso yeseli yelanga nayo iyanda.Xa amandla aphumayo afunwa ngumsebenzi we-inverter afinyelelwe, i-inverter iqala ukusebenza ngokuzenzekelayo.Emva kokungena ekusebenzeni, i-inverter iya kukunyamekela ukukhutshwa kwemodyuli yeseli yelanga lonke ixesha.Ngethuba nje amandla okuvelisa imodyuli yeseli yelanga inkulu kunamandla okuvelisa afunwa ngumsebenzi we-inverter, i-inverter iya kuqhubeka isebenza;I-inverter inokusebenza ngeentsuku zemvula.Xa imveliso yemodyuli yeseli yelanga iba yincinci kwaye imveliso ye-inverter isondele kwi-0, i-inverter yenza i-standby state.
2. Ubuninzi bomsebenzi wokulawula ukulandelela umbane: Ukukhutshwa kwemodyuli yeseli yelanga itshintsha kunye nobukhulu bemitha yelanga kunye nobushushu bemodyuli yeseli yelanga ngokwayo (ubushushu be-chip).Ukongezelela, ngenxa yokuba imodyuli yeseli yelanga inempawu yokuba i-voltage iyancipha ngokunyuka kwangoku, kukho indawo efanelekileyo yokusebenza apho amandla amaninzi angafumaneka.Ubunzulu bemitha yelanga buyatshintsha, njengokuba injalo eyona ndawo ilungileyo yothumo.Ngokumalunga nolu tshintsho, indawo yomsebenzi wemodyuli yeseli yelanga isoloko ikwindawo ephezulu yamandla, kwaye inkqubo isoloko ifumana umbane ophezulu ophuma kwimodyuli yeseli yelanga.Olu lawulo lolona lawulo lokulandelela amandla aphezulu.Olona phawu lukhulu lwee-inverters kwiinkqubo zamandla elanga kukuba lubandakanya umsebenzi wokulandelela ubungakanani bamandla obuninzi (MPPT).
Ixesha lokuposa: Sep-12-2022
