Photovoltaic off-grid inverter

Khoom Taw Qhia
Lub PV off-grid inverter yog lub zog hloov dua siab tshiab uas thawb-rub boosts lub tswv yim DC lub zog thiab tom qab ntawd hloov mus rau 220V AC lub zog los ntawm inverter choj SPWM sinusoidal pulse width modulation technology.
Zoo li daim phiaj sib txuas inverters, PV off-grid inverters xav tau kev ua haujlwm siab, kev ntseeg siab, thiab ntau yam ntawm DC input voltage;nyob rau hauv nruab nrab- thiab loj-muaj peev xwm PV tshuab, cov zis ntawm lub inverter yuav tsum yog ib tug sinusoidal yoj nrog tsawg distortion.

Kev ua tau zoo thiab nta
1. 16-ntsis microcontroller lossis 32-ntsis DSP microprocessor yog siv los tswj.
2. PWM tswj hom, txhim khu kev ua tau zoo.
3. Txais cov digital lossis LCD los tso saib ntau yam kev ua haujlwm, thiab tuaj yeem teeb tsa qhov tsis sib xws.
4. Square yoj, hloov yoj, sine yoj tso zis.Sine yoj tso zis, waveform distortion tus nqi tsawg dua 5%.
5. High voltage stabilization raug, nyob rau hauv rated load, cov zis qhov tseeb yog feem ntau tsawg tshaj li ntxiv los yog rho tawm 3%.
6. Ua haujlwm qeeb qeeb kom tsis txhob muaj kev cuam tshuam tam sim no ntawm roj teeb thiab thauj khoom.
7. High zaus transformer cais, me me thiab lub teeb yuag.
8. Nruab nrog tus qauv RS232/485 kev sib txuas lus interface, yooj yim rau kev tswj cov chaw taws teeb.
9. tuaj yeem siv rau hauv ib puag ncig siab tshaj 5500 meters saum hiav txwv theem.
10 、 Nrog kev tiv thaiv kev tiv thaiv kev tiv thaiv kev tiv thaiv, kev tiv thaiv kev tiv thaiv hluav taws xob, kev tiv thaiv kev tiv thaiv kev tiv thaiv, kev tiv thaiv kev tiv thaiv kev tiv thaiv, kev tiv thaiv kev tiv thaiv kev tiv thaiv, kev tiv thaiv luv luv Circuit Court, tiv thaiv overheat thiab lwm yam kev tiv thaiv.

Qhov tseem ceeb technical parameter ntawm off-grid inverters
Thaum xaiv ib qho off-grid inverter, dhau li ntawm kev them nyiaj rau cov zis waveform thiab cais hom ntawm inverter, muaj ntau yam kev tsis sib xws uas tseem ceeb heev, xws li qhov system voltage, tso zis zog, ncov zog, conversion efficiency, hloov lub sij hawm, thiab lwm yam. Cov kev xaiv ntawm cov kev txwv no muaj kev cuam tshuam zoo rau cov khoom siv hluav taws xob xav tau.
1) Qhov system voltage:
Nws yog qhov voltage ntawm lub roj teeb pob.Lub input voltage ntawm off-grid inverter thiab cov zis voltage ntawm tus maub los yog tib yam, yog li thaum tsim thiab xaiv cov qauv, xyuam xim kom zoo ib yam nrog cov maub los.
2) Lub zog tso zis:
Off-grid inverter tso zis hluav taws xob qhia muaj ob yam, ib qho yog qhov pom tseeb lub zog qhia, chav tsev yog VA, qhov no yog siv UPS cim, qhov tseeb tso zis hluav taws xob kuj yuav tsum tau muab ntau lub zog, xws li 500VA off-grid inverter Lub hwj chim yog 0.8, qhov tseeb tso zis zog yog 400W, uas yog hais tias, muaj peev xwm tsav 400W resistive load, xws li hluav taws xob teeb, induction cookers, thiab lwm yam .;Qhov thib ob yog lub zog qhia tawm, chav tsev yog W, xws li 5000W off-grid inverter, qhov tseeb tso zis zog yog 5000W.
3) Peak zog:
Nyob rau hauv lub PV off-grid system, modules, roj teeb, inverters, loads tsim cov hluav taws xob system, lub inverter tso zis hwj chim, yog txiav txim los ntawm lub load, ib co inductive loads, xws li cua txias, twj tso kua mis, thiab lwm yam, lub cev muaj zog nyob rau hauv, lub pib fais fab tuag yog 3-5 npaug ntawm lub zog ntsuas, yog li lub tshuab hluav taws xob tawm hluav taws xob muaj cov kev cai tshwj xeeb rau overload.Lub zog siab tshaj plaws yog qhov muaj peev xwm tshaj tawm ntawm qhov tawm-grid inverter.
Lub inverter muab lub zog pib rau lub nra, ib feem ntawm lub roj teeb lossis PV module, thiab qhov ntau tshaj yog muab los ntawm lub zog cia khoom hauv lub inverter - capacitors thiab inductors.Capacitors thiab inductors yog ob qho tib si lub zog cia khoom, tab sis qhov txawv yog tias cov capacitors khaws cov hluav taws xob hluav taws xob nyob rau hauv daim ntawv ntawm hluav taws xob, thiab lub peev xwm loj ntawm lub capacitor, lub hwj chim yuav khaws tau ntau dua.Inductors, ntawm qhov tod tes, khaws lub zog nyob rau hauv daim ntawv ntawm magnetic teb.Qhov ntau dua qhov sib nqus permeability ntawm cov tub ntxhais inductor, qhov inductance ntau dua, thiab lub zog ntau dua tuaj yeem khaws cia.
4) Conversion efficiency:
Off-grid system conversion efficiency muaj xws li ob yam, ib tug yog cov efficiency ntawm lub tshuab nws tus kheej, off-grid inverter Circuit Court yog complex, mus los ntawm multi-theem hloov dua siab tshiab, yog li ntawd lub zuag qhia tag nrho efficiency yog me ntsis qis dua daim phiaj-txuas inverter, feem ntau. nruab nrab ntawm 80-90%, qhov ntau dua lub zog ntawm lub tshuab inverter efficiency, high-frequency cais ntau zaus kev rho tawm efficiency yog siab dua, qhov system voltage efficiency kuj siab dua.Qhov thib ob, qhov ua tau zoo ntawm cov roj teeb them thiab tso tawm, qhov no yog hom roj teeb muaj kev sib raug zoo, thaum lub zog photovoltaic tsim thiab thauj khoom fais fab synchronization, photovoltaic tuaj yeem ncaj qha muab cov khoom thauj mus rau kev siv, tsis tas yuav mus dhau lub roj teeb hloov pauv.
5) Lub sijhawm hloov pauv:
Off-grid system nrog load, muaj PV, roj teeb, hluav taws xob peb hom, thaum lub roj teeb lub zog tsis txaus, hloov mus rau kev siv hluav taws xob, muaj lub sijhawm hloov, qee qhov off-grid inverters siv hluav taws xob hloov pauv, lub sijhawm hauv 10 milliseconds, desktop computers yuav tsis kaw, teeb pom kev zoo yuav tsis flicker.Qee qhov off-grid inverters siv relay hloov, lub sijhawm yuav ntau dua 20 milliseconds, thiab lub khoos phis tawj desktop yuav kaw lossis rov pib dua.