Kev tsim hluav taws xob photovoltaic hnub ci yuav ua lub luag haujlwm tseem ceeb hauv kev siv hluav taws xob hauv ntiaj teb yav tom ntej, tsis yog tsuas yog hloov qee qhov chaw siv hluav taws xob ib txwm muaj, tab sis kuj tseem yuav dhau los ua qhov chaw tseem ceeb ntawm kev muab hluav taws xob hauv ntiaj teb.
Cov inverters photovoltaic yog cov inverters uas hloov cov hluav taws xob DC uas tsim los ntawm cov vaj huam sib luag photovoltaic (PV) hnub ci mus rau hauv cov zaus hloov pauv tam sim no (AC), uas tuaj yeem pub rov qab rau hauv lub kaw lus xa hluav taws xob lag luam lossis siv rau hauv lub kaw lus off-grid. Vim tias cov inverters feem ntau siv rau sab nraum zoov thiab xav tau kev ua haujlwm ntev thiab kev saib xyuas tsawg dua, cov neeg siv kawg thiab cov neeg tsim qauv muaj cov kev cai zoo thiab kev ntseeg siab rau cov khoom siv hauv cov khoom siv no. Raws li tus neeg nqa khoom thiab kev txhawb nqa hauv cov txheej txheem hloov pauv hluav taws xob, cov zaj duab xis capacitors ua lub luag haujlwm tseem ceeb hauv txhua yam ntawm cov inverters photovoltaic. Yog tias lawv tsis raug xaiv kom raug, lawv yuav muaj kev cuam tshuam loj heev rau kev ruaj khov thiab lub neej ntawm cov khoom siv.
Rau kev siv hauv lub voj voog inverter, thov saib cov piv txwv ntawm daim ntawv thov hauv daim duab hauv qab no:
Lub luag haujlwm ntawm DC-txuas capacitor:
1) Hauv lub voj voog inverter, qhov hluav taws xob tso zis ntawm lub rectifier feem ntau yog smoothed thiab lim;
2) Nqus cov hluav taws xob siab uas lub inverter xav tau los ntawm "DC-Link", tiv thaiv nws kom tsis txhob tsim cov hluav taws xob siab ntawm qhov impedance ntawm "DC-Link", thiab ua kom qhov hluav taws xob hloov pauv ntawm DC bus nyob rau hauv qhov ntau uas tso cai;
3) Tiv thaiv kom tsis txhob muaj qhov voltage overshoot thiab transient overvoltage ntawm "DC-Link" cuam tshuam rau IGBT.
Yog li ntawd, cov kev cai rau cov capacitors:
1) Xyuas kom muaj zog txaus
2) Muaj peev xwm txaus
3) Muaj peev xwm over-current txaus, ESR qis li sai tau
4) Xav tau cov yam ntxwv zoo ntawm zaus, ESL qis li sai tau
5) Txaus siab rau qhov kub thiab txias sab nraum zoov thiab cov av noo siab
Wuxi CRE Tshiab Zog Technology Co., Ltd. tau tsom mus rau kev siv cov zaj duab xis capacitors hauv cov khoom siv hluav taws xob tau ntev. Lub hom phiaj ntawm qhov xwm txheej siv hnyav hauv photovoltaic inverters, raws li CRE's DC-txhawb nqa cov thev naus laus zis siab tiv taus zaj duab xis, nws siv cov kev poob qis, kub-resistant Polypropylene Dielectric tau tsim thiab tsim cov koob ntawm cov zaj duab xis capacitors nrog kub thiab siab av noo tsis kam, qis ESR (tsawg dua cua sov tsim), kev ntseeg siab siab thiab lub neej ntev.
Ntawm lawv, cov yam ntxwv ntawm DMJ-PS DC bus capacitor yog raws li nram no:
Qhov kub siab tshaj plaws ua haujlwm: 105 ° C (lub thawv yas)
Pawg huab cua (IEC 60068-1:2013): 40/105/56
Dielectric: Polypropylene (MKP)
Lub thawv yas (UL 94 V-0)
Kev kaw cov roj hmab (UL 94 V-0)
Tus nqi capacitance siab tshaj plaws. 200μF
Qhov hluav taws xob ntau yam 300V ~ 2000VDC
Kev ua tau zoo ntawm tus kheej kho, kev tiv thaiv overvoltage, kev tiv thaiv tam sim no siab thiab kev poob qis
Kev tiv thaiv rau qhov kub thiab noo noo ib puag ncig (85 ℃ / 85% RH 1000h), kev ntseeg siab siab, lub neej ntev
Ua raws li RoHS thiab ua tau raws li qhov yuav tsum tau ua ntawm qib tsheb AEC-Q200