Hnub ci photovoltaic lub zog tsim hluav taws xob yuav ua lub luag haujlwm tseem ceeb hauv lub ntiaj teb kev siv hluav taws xob nyob rau yav tom ntej, tsis yog los hloov qee qhov chaw siv hluav taws xob, tab sis kuj los ua lub hauv paus tseem ceeb ntawm lub ntiaj teb cov khoom siv hluav taws xob.
Photovoltaic inverters yog inverters uas hloov qhov sib txawv DC voltage tsim los ntawm photovoltaic (PV) hnub ci vaj huam sib luag rau hauv hluav taws xob zaus alternating tam sim no (AC), uas tuaj yeem muab rov qab rau hauv kev lag luam xa mus los yog siv hauv cov kab sib chaws.Txij li thaum inverters feem ntau siv rau sab nraum zoov thiab xav tau kev ua haujlwm ntev ntev thiab kev saib xyuas tsawg dua, cov neeg siv khoom kawg thiab cov neeg tsim qauv muaj cov kev cai nruj heev 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 hluav taws xob, zaj duab xis capacitors ua lub luag haujlwm tseem ceeb hauv txhua yam ntawm photovoltaic inverters.Yog tias lawv tsis raug xaiv kom raug, lawv yuav muaj kev cuam tshuam rau kev ruaj ntseg thiab lub neej ntawm cov khoom siv.
Rau kev siv nyob rau hauv lub inverter Circuit Court, thov mus saib daim ntawv thov piv txwv nyob rau hauv daim duab hauv qab no:
Lub luag haujlwm ntawm DC-link capacitor:
1) Nyob rau hauv lub inverter Circuit Court, cov zis voltage ntawm lub rectifier mas smoothed thiab lim;
2) Absorb lub siab-amplitude pulsating tam sim no thov los ntawm inverter los ntawm "DC-Txuas", tiv thaiv nws los ntawm generating high-amplitude pulsating voltage ntawm lub impedance ntawm "DC-Txuas", thiab ua kom lub voltage fluctuation ntawm lub DC tsheb npav nyob rau hauv lub tso cai ntau yam;
3) Tiv thaiv qhov voltage overshoot thiab transient overvoltage ntawm "DC-Txuas" los ntawm kev cuam tshuam rau IGBT.
Yog li ntawd, cov kev xav tau rau capacitor:
1) Xyuas kom txaus tiv taus voltage
2) txaus capacitance
3) Muaj peev xwm txaus dhau tam sim no, qis ESR raws li qhov ua tau
4) Xav tau cov yam ntxwv zoo zaus, qis ESL raws li qhov ua tau
5) Txaus siab rau qhov hnyav sab nraum zoov kub thiab av noo siab thov
Wuxi CRE Tshiab Zog Technology Co., Ltd. tau tsom mus rau daim ntawv thov ntawm zaj duab xis capacitors nyob rau hauv lub hwj chim electronics rau lub sij hawm ntev.Lub hom phiaj ntawm qhov kev thov hnyav nyob rau hauv photovoltaic inverters, raws li CRE's DC-txhawb siab-txheej zaj duab xis thev naus laus zis, nws tau txais kev poob qis, kub-resistant Polypropylene Dielectric tau tsim thiab tsim cov yeeb yaj kiab capacitors nrog kub thiab av noo. tsis kam, tsis tshua muaj ESR (tsim hluav taws xob qis), muaj kev ntseeg siab thiab lub neej ntev.
Ntawm lawv, cov yam ntxwv ua tau zoo ntawm DMJ-PS DC bus capacitor yog raws li hauv qab no:
Ua haujlwm kub siab tshaj plaws: 105 ° C (cov ntaub ntawv yas)
Kev nyab xeeb qeb (IEC 60068-1: 2013): 40/105/56
Dielectric: Polypropylene (MKP)
Lub thawv yas (UL 94 V-0)
Resin sealing (UL 94 V-0)
Capacitance tus nqi max.200 μF
Voltage ntau yam 300V ~ 2000VDC
Kev ua tau zoo ntawm tus kheej zoo, kev tiv thaiv overvoltage, siab tam sim no tsis kam thiab poob qis
Ua haujlwm kub thiab av noo ib puag ncig (85 ℃ / 85% RH 1000h), kev ntseeg siab, kev ua haujlwm ntev
Ua raws li RoHS thiab ua tau raws li cov kev cai ntawm qib tsheb AEC-Q200