1. Dab tsi yog Islanding Phenomenon hauv Grid-Tied PV Systems?
Txhais
Cov Islands tuaj tshwm sim tshwm sim nyob rau hauv daim phiaj-tied photovoltaic (PV) systems thaum daim phiaj hluav taws xob muaj hluav taws xob, tab sis PV system tseem muab lub zog rau cov khoom sib txuas. Qhov no tsim ib lub zos "kos" ntawm lub zog tsim.
Kev phom sij ntawm Islanding
- Kev Nyab Xeeb Kev Nyab Xeeb: Kev pheej hmoo rau cov neeg ua haujlwm kho hluav taws xob kho kab sib chaws.
- Cov khoom puas tsuaj: Cov khoom siv hluav taws xob tuaj yeem ua haujlwm tsis zoo vim qhov tsis muaj zog thiab zaus.
- Grid Instability: Cov Islands tuaj yeem tswj tsis tau tuaj yeem cuam tshuam kev ua haujlwm synchronized ntawm daim phiaj loj.
2. Cov yam ntxwv tseem ceeb thiab cov yam ntxwv ntawm qhov tsim nyog Inverters
Cov yam ntxwv tseem ceeb ntawm Inverters
- Anti-Islanding Protection: Siv txoj hauv kev nrhiav kom tau nquag thiab tsis muaj zog kom kaw tam sim thaum lub phiaj xwm tsis ua haujlwm.
- Ua tau zoo MPPT (Maximum Power Point Tracking): Maximizes zog hloov los ntawm PV panels.
- High conversion efficiency: Feem ntau> 95% kom txo qis zog poob.
- Kev sib txuas lus ntse: Txhawb cov txheej txheem xws li RS485, Wi-Fi, lossis Ethernet rau kev saib xyuas.
- Kev Tswj Chaw Taws Teeb: Tso cai rau kev saib xyuas thiab tswj lub kaw lus nyob deb.
Ntsiab Technical Parameters
| Parameter | Pom zoo Range |
|---|---|
| Output Power Range | 5 kW-100 kW |
| Cov zis Voltage/Frequency | 230V / 50Hz lossis 400V / 60Hz |
| Kev tiv thaiv ntsuas | IP65 lossis siab dua |
| Tag nrho Harmonic Distortion | <3% |
Lub rooj sib piv
| Feature | Inverter A | Inverter B | Inverter C |
| Kev ua tau zoo | 97% | 96% | 95% |
| MPPT Channels | 2 | 3 | 1 |
| Kev tiv thaiv ntsuas | IP66 | IP65 | IP67 |
| Anti-Islanding teb | <2 vib nas this | <3 vib nas this | <2 vib nas this |
3. Kev sib txuas ntawm PV Cable xaiv thiab kev tiv thaiv Island
Qhov tseem ceeb ntawm PV Cables
High-quality PV cables ua lub luag haujlwm tseem ceeb hauv kev tswj hwm kev ruaj ntseg thiab ua kom ntseeg tau qhov tseeb ntawm daim phiaj xwm txheej, uas yog qhov tseem ceeb rau kev tiv thaiv kev tiv thaiv.
- Kev xa hluav taws xob zoo: Txo qhov hluav taws xob poob thiab lub zog poob, kom ntseeg tau lub zog zoo ib yam rau lub inverter.
- Teeb liab raug: Minimizes hluav taws xob suab nrov thiab impedance variations, kev txhim kho lub inverter lub peev xwm mus ntes kab sib chaws tsis ua hauj lwm.
- Durability: Ua kom muaj kev ntseeg tau ntev ntev hauv ntau yam ib puag ncig, tswj kev ua haujlwm tsis tu ncua.
4. Pom zooPV Cables rau Grid-Tied Systems
Sab saum toj PV Cable Options
- EN H1Z2Z2-K
- Nta: Tsis tshua muaj pa luam yeeb, tsis muaj halogen, huab cua tsis kam.
- Ua raws: Ua tau raws li IEC 62930 tus qauv.
- Daim ntawv thov: Hauv av-mounted thiab ru tsev PV systems.
- TUV PV1-F
- NtaKev ntsuas kub zoo heev (-40 ° C txog + 90 ° C).
- Ua raws: TÜV ntawv pov thawj rau cov qauv kev nyab xeeb siab.
- Daim ntawv thov: Distributed PV systems thiab agrivoltaics.
- Armored PV Cables
- Nta: Txhim kho txhua yam kev tiv thaiv thiab kav ntev.
- Ua rawsUa tau raws li IEC 62930 thiab EN 60228 tus qauv.
- Daim ntawv thov: Industrial-scale PV systems thiab hnyav ib puag ncig.
Parameter Sib piv Table
| Cable Model | Qhov kub thiab txias | Cov ntawv pov thawj | Daim ntawv thov |
| EN H1Z2Z2-K | -40 ° C rau + 90 ° C | TS EN 62930 IEC 62930 (ib | Lub ru tsev thiab hluav taws xob PV systems |
| TUV PV1-F | -40 ° C rau + 90 ° C | TÜV Certified | Distributed thiab hybrid systems |
| Armored PV Cable | -40 ° C rau + 125 ° C | IEC 62930, EN 60228 | Industrial PV installations |
Danyang Winpower Hlau thiab Cable Mfg Co., Ltd.
Cov chaw tsim khoom ntawm cov khoom siv hluav taws xob thiab cov khoom siv, cov khoom tseem ceeb suav nrog cov hlua hluav taws xob, cov hlua hluav taws xob thiab cov khoom siv hluav taws xob. Siv rau cov tshuab hauv tsev ntse, cov tshuab photovoltaic, lub zog cia, thiab cov tshuab hluav taws xob tsheb
Cov lus xaus thiab cov lus pom zoo
- Nkag siab txog Islanding: Islanding ua rau muaj kev pheej hmoo loj rau kev nyab xeeb, khoom siv, thiab kab sib chaws ruaj khov, yuav tsum muaj kev tiv thaiv zoo.
- Xaiv txoj cai Inverter: Xaiv cov inverter nrog kev tiv thaiv kev tiv thaiv, kev ua haujlwm siab, thiab muaj peev xwm sib txuas lus zoo.
- Muab qhov tseem ceeb ntawm cov kab hluav taws xob zoo: Opt rau PV cables nrog siab durability, tsis tshua muaj impedance, thiab txhim khu kev qha kev ua tau zoo los xyuas kom meej system stability.
- Tsis tu ncua: Kev tshuaj xyuas ib ntus ntawm PV system, suav nrog inverters thiab cables, yog qhov tseem ceeb rau kev ntseeg tau ntev.
Los ntawm kev ua tib zoo xaiv cov khoom tsim nyog thiab tswj xyuas qhov system, daim phiaj-khi PV kev teeb tsa tuaj yeem ua tiav qhov kev ua tau zoo thiab kev nyab xeeb thaum ua raws li cov qauv kev lag luam.
Post lub sij hawm: Dec-24-2024