I-grid-tie, ekwaziwa ngokuba yigridi ebotshiweyoii-invertersokanye utility-interactiveii-inverters, dlala indima ebalulekileyo ekuququzeleleni ukuhlanganiswa kwamandla ahlaziyekayo kwigridi ekhoyo.Ubuchwephesha babo obutsha buguqula ngokufanelekileyo umbane othe ngqo (DC) oveliswe ziinkqubo zamandla ahlaziyekayo ezifana neepaneli zelanga okanye iiinjini zomoya zibe ngumsinga otshintshanayo (AC) onokubuyiselwa kwigridi.
Umgaqo-siseko osisiseko wokusebenza kwegridiinverterijikeleza ungqamaniso lwamandla avelisiweyo kunye nomthamo kunye nombane wegridi.Olu ngqamaniso lubalulekile ekuqinisekiseni inaliti engenamthungo yamandla ahlaziyekayo kwigridi, ngokufanelekileyo ukuguqula amakhaya kunye namashishini abe ngamaziko amancinci ombane.Makhe sijonge ngakumbi izigaba kunye namacandelo abandakanyekayo kule nkqubo yokuvelisa izinto ezintsha.
1. Ukuguqulwa kwe-DC kwi-AC: Inqanaba lokuqala legridi-eqhagamshelweinverterumsebenzi kukuguqula amandla eDC aveliswa ngamandla ahlaziyekayo abe ngamandla e-AC.Oku kuphunyezwa ngeesekethe ze-elektroniki ezisebenzisa ukutshintshwa kwe-frequency ephezulu ukuguqula amandla kunye nokuvelisa amaza e-sine afana namaxesha egridi.
2. I-Maximum Power Point Tracking (MPPT): Kwiinkqubo ze-photovoltaic zelanga, iteknoloji ye-MPPT isetyenziselwa ukunyusa amandla ombane weepaneli.I-algorithm yeMPPT ilandelela indawo ephezulu yamandla eepaneli zelanga, iqinisekisa ukubainverterisebenza ngobuchule obukhulu naphantsi kweemeko ezahlukeneyo zokukhanya kwelanga.
3. Ungqamaniso neeparamitha zegridi: Nje ukuba amandla eDC aguqulwe abe ngamandla e-AC, igridi-iqhagamshelwe.inverterIngqamanisa ukuphindaphinda kunye nombane wamandla e-AC avelisiweyo kunye neeparamitha zegridi.Oku kuphunyezwa ngolawulo oluphezulu lwe-algorithms oluhlala lubeka iliso rhoqo kunye nombane wegridi kunye nokulungelelanisainverterimveliso ngokufanelekileyo.
4. Ukukhuselwa kwe-Anti-islanding: Igridi-iqhagamshelweii-inverterszixhotyiswe ngendlela yokukhusela i-anti-islanding ukuthintela ukufakwa kwamandla kwigridi ngexesha leempazamo zegridi okanye imisebenzi yokulondoloza.La manyathelo abeka bucalainverterukusuka kwigridi, ziphephe iingozi ezinokubakho njengempendulo, kwaye uqinisekise ukhuseleko lwabasebenzi abaluncedo.
5. Umgangatho wamandla kunye nolawulo lwamandla olusebenzayo: Igridi-iqhagamshelweii-invertersinokugcina umgangatho wamandla ngokulawula ngokusebenzayo amandla asebenzayo, amandla ombane kunye neeharmonics.Banokutofa okanye bafunxe amandla asebenzayo ukubuyisela ukuguquguquka kwamandla ombane kunye nokuphucula uzinzo kunye nokuthembeka kwegridi.
6. Igrid feed-in: Nje ukuba igridi ibotshweinverterilungelelaniswa kunye negridi kwaye iqinisekisa ukuthotyelwa kwazo zonke iimfuno zobugcisa, amandla e-AC aguqulwayo abuyiselwa kwigridi.La mandla anokusetyenziswa ngabathengi abakufutshane okanye adluliselwe kwiindawo ezikude ngeziseko zothumelo ezikhoyo.
Umgaqo-nkqubo wokusebenza kwegridiii-invertersiguqula indlela izixokelelwano zamandla ahlaziyekayo ezidityaniswa ngayo kwigridi.Ubuchwephesha buvumela ukwamkelwa ngokungenamthungo kwelanga, umoya kunye neminye imithombo yamandla ahlaziyekayo kwinqanaba, ukunciphisa ukuxhomekeka kumafutha efosili kunye nokunciphisa ukukhutshwa kwegesi yegreenhouse.Ngaphezu koko, idityanisiwe kwigridiii-invertersukunika abanini bezindlu kunye namashishini ithuba lokuba ngabathathi-nxaxheba abakhutheleyo kwinguqu yamandla, igalelo kwikamva eliluhlaza kunye nozinzo.
Isishwankathelo, igridi-ibotshweii-inverterslikhonkco eliphambili phakathi kweenkqubo zamandla ahlaziyekayo kunye negridi.I-DC yayo esebenzayo kwi-AC yokuguqulwa, ukulungelelaniswa kunye neeparamitha zegridi kunye nokukhuselwa kwe-anti-islanding kuqinisekisa ukuhlanganiswa okukhuselekileyo nokuthembekileyo kwamandla avuselelekayo kwiziseko ezikhoyo.Njengegridi-iqhagamshelweinverteritekhnoloji iyaqhubeka nokuqhubela phambili, ukutshintshela kwindawo ecocekileyo, ezinzileyo yamandla ibe yinyani.
Ixesha lokuposa: Oct-13-2023