Basic Overview Of Grid Connected Power Generation Systems

Daim phiaj hluav taws xob txuas nrog lub zog tsim hluav taws xob hloov lub hnub ci zog rau hauv hluav taws xob hluav taws xob, uas yog xa ncaj qha mus rau hauv daim phiaj los ntawm daim phiaj sib txuas inverters yam tsis tau khaws cia rau hauv cov roj teeb. Tom ntej no, peb yuav qhia txog cov ntsiab lus tseem ceeb ntawm daim phiaj txuas hluav taws xob tsim hluav taws xob.

Cov kab hluav taws xob txuas hluav taws xob tsim hluav taws xob feem ntau yog tsim los siv cov ntsiab lus ntawm cov nyhuv photovoltaic, uas yog lub zog tsim hluav taws xob uas ncaj qha hloov lub hnub ci hluav taws xob rau hauv hluav taws xob hluav taws xob. Qhov tseeb, nws tsuas yog muaj ob ntu: lub hnub ci cell array thiab inverter. Thaum muaj hnub ci thaum nruab hnub, hluav taws xob tsim los ntawm lub hnub ci cell array ncaj qha xa mus rau AC daim phiaj los ntawm daim phiaj sib txuas inverters. Qhov tseeb, nws tuaj yeem faib ua ob pawg tam sim no. Ib qho yog daim phiaj sib txuas hluav taws xob tsim hluav taws xob, uas txuas nrog rau pej xeem daim phiaj los ntawm cov txheej txheem kev sib txuas, xws li lub tshuab hluav taws xob me me; Lwm hom yog lub zog tsim hluav taws xob, uas tsim ib lub voj nyob rau hauv nws tus kheej kaw-loop system. Lub hnub ci hluav taws xob hluav taws xob tau txais los ntawm daim phiaj sib txuas hluav taws xob tsim hluav taws xob thaum lub sijhawm ua haujlwm yog tsuas yog hloov mus rau high-voltage direct tam sim no los ntawm high-frequency direct tam sim no hloov dua siab tshiab ntawm pawg photovoltaic. Cov zis yog sine wave alternating tam sim no nrog tib zaus thiab theem raws li daim phiaj voltage, uas yog inverted los ntawm ib tug inverter thiab ces txuas rau daim phiaj. Cov kab sib txuas dav dav txuas nrog lub zog tsim hluav taws xob ua ntej hloov cov hluav taws xob hluav taws xob uas tau txais lub hnub ci ncaj qha mus rau hauv hluav taws xob hluav taws xob los muab cov khoom thauj, thiab lub zog ntau dhau yog khaws cia rau hauv daim ntawv ntawm cov tshuaj siv hluav taws xob hauv lub roj teeb los ntawm kev them nyiaj.

Cov kab hluav taws xob txuas nrog lub zog tsim hluav taws xob feem ntau yog tsim los ntawm cov khoom siv hluav taws xob hnub ci, thiab ib lub hnub ci hluav taws xob tsuas tuaj yeem tsim qhov hluav taws xob ntawm 0.5V, uas yog qis dua qhov hluav taws xob tiag tiag uas yuav tsum tau siv. Nws yog ib qho tsim nyog los txuas cov hnub ci hlwb rau cov khoom siv kom ua tau raws li kev siv tau. Qhov tseem ceeb sib npaug yog tias cov khoom ntawm daim phiaj sib txuas hluav taws xob tsim hluav taws xob muaj xws li qee tus xov tooj ntawm lub hnub ci txuas nrog cov xov hlau. Piv txwv li, tus naj npawb ntawm lub hnub ci hauv ib feem yog 36, uas txhais tau hais tias lub hnub ci module tuaj yeem tsim qhov voltage ntawm kwv yees li 17V. Cov chav nyob hauv lub cev feem ntau txuas nrog lub hnub ci los ntawm cov xov hlau hu ua hnub ci xov tooj ntawm tes. Daim phiaj txuas hluav taws xob tsim hluav taws xob muaj qee yam kev tiv thaiv corrosion, windproof, lawg pov thawj, nag pov thawj thiab lwm yam kev ua tau zoo, thiab tau siv dav. Thaum daim ntawv thov teb yuav tsum muaj qhov hluav taws xob ntau dua thiab tam sim no, thiab ib qho kev tiv thaiv tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua, ntau yam khoom tuaj yeem hloov mus rau hauv lub hnub ci cell arrays kom tau txais qhov xav tau voltage thiab tam sim no. Inverters kuj tseem ceeb vim tias lawv yog DC, thiab qhov dav dav yog AC load. Ntawm chav kawm, nws cov inverters tuaj yeem muab faib ua kev khiav hauj lwm inverters thiab daim phiaj txuas nrog inverters raws li lawv hom kev ua haujlwm.