M'makina atsopano a photovoltaic, chosinthira magetsi (PCS) ndiye maziko osinthira mphamvu ya photovoltaic DC kukhala grid AC mphamvu. Ma capacitor a filimu a YMIN, omwe ali ndi mphamvu zambiri zotsutsa, kutaya pang'ono, ndi moyo wautali, ndizo zigawo zikuluzikulu zopititsa patsogolo ntchito ya photovoltaic PCS inverters, kuthandiza zomera zamagetsi za photovoltaic kuti zitheke kutembenuka kwamphamvu ndi kutulutsa kokhazikika. Ntchito zawo zazikulu komanso zabwino zaukadaulo ndi izi:
1. "Voltage Stabilization Shield" ya DC-Link
Panthawi ya kutembenuka kwa AC-DC mu ma inverters a photovoltaic PCS, basi ya DC (DC-Link) imayang'aniridwa ndi mafunde apamwamba komanso ma voteji. YMIN mafilimu capacitors amapereka ubwino ndi:
• High-Voltage Surge Absorption: Kulimbana ndi ma voltages apamwamba a 500V mpaka 1500V (customizable), amatenga ma spikes osakhalitsa opangidwa ndi ma switch a IGBT / SiC, kuteteza zipangizo zamagetsi ku zoopsa zowonongeka.
• Low ESR Current Smoothing: Low ESR (1/10 ya chikhalidwe cha aluminiyamu electrolytic capacitors) imagwira bwino kwambiri pa DC-Link, kuchepetsa kutayika kwa mphamvu ndikusintha mphamvu zosintha mphamvu.
• High-Capacity Energy Storage Buffer: Kuchuluka kwa mphamvu kumalola kuti azilipiritsa ndi kutulutsa mofulumira panthawi ya kusinthasintha kwa magetsi a gridi, kusunga mphamvu yamagetsi ya basi ya DC ndikuwonetsetsa kuti PCS ikugwira ntchito mosalekeza.
2. Kutetezedwa Kwapawiri Kwambiri Kupirira kwa Voltage ndi Kukhazikika kwa Kutentha
Malo opangira magetsi a PV nthawi zambiri amakumana ndi malo ovuta monga kutentha kwambiri komanso chinyezi chambiri. Ma capacitors a YMIN amakumana ndi zovuta izi kudzera muzopanga zatsopano:
• Ntchito Yokhazikika pa Kutentha Kwambiri Kwambiri: Kutentha kwa ntchito kumaphimba -40 ° C mpaka 105 ° C, ndi mphamvu yowonongeka ya capacitance yosachepera 5% m'madera otentha kwambiri, kuteteza kutsika kwa dongosolo chifukwa cha kusinthasintha kwa kutentha.
• Ripple Current Capacity: Ripple panopa akugwira mphamvu ndi nthawi 10 kuposa capacitor electrolytic capacitors, mogwira bwino kusefa harmonic phokoso pa PV linanena bungwe ndi kuonetsetsa kuti gululi-olumikizidwa mphamvu mphamvu zikugwirizana ndi mfundo dziko.
• Moyo Wautali ndi Wopanda Kusamalira: Ndi moyo wautali mpaka maola 100,000, kupitirira kwambiri maola 30,000-50,000 a aluminiyamu electrolytic capacitors, izi zimachepetsa ntchito ndi kukonza ndalama zopangira magetsi a photovoltaic.
3. Synergy ndi SiC/IGBT Devices
Pamene makina opangira ma photovoltaic amasintha kupita ku ma voltages apamwamba (zomangamanga za 1500V zikukhala zodziwika bwino), ma capacitor a mafilimu a YMIN opyapyala amagwirizana kwambiri ndi ma semiconductors amagetsi am'badwo wotsatira:
• Thandizo la Kusintha Kwapamwamba Kwambiri: Mapangidwe otsika otsika amafanana ndi mawonekedwe apamwamba a SiC MOSFETs (kusintha pafupipafupi> 20kHz), kuchepetsa chiwerengero cha zigawo zowonongeka ndikuthandizira kuti miniaturization ya machitidwe a PCS (dongosolo la 40kW limafuna ma capacitor a 8 okha, poyerekeza ndi 22 kwa mayankho a silicon).
• Kuwongolera kwa dv/dt Kupirira: Kupititsa patsogolo kusinthasintha kwa kusintha kwa magetsi, kuteteza kusinthasintha kwa magetsi chifukwa cha kuthamanga kwambiri kwa makina a SiC.
4. Kufunika Kwadongosolo ladongosolo: Kupititsa patsogolo Mphamvu Zamagetsi ndi Kukonzekera Mtengo
• Kuchita Bwino Kwambiri: Mapangidwe otsika a ESR amachepetsa kutentha, kukulitsa mphamvu zonse za PCS ndikuwonjezera kwambiri kupanga mphamvu pachaka.
• Kupulumutsa Malo: Kapangidwe kamphamvu kachulukidwe kamphamvu (40% yaing'ono kuposa ma capacitor achikhalidwe) imathandizira masanjidwe a zida zophatikizika za PCS ndikuchepetsa mtengo woyika.
Mapeto
Ma capacitor a filimu a YMIN, omwe ali ndi ubwino wawo waukulu wa kulekerera kwamagetsi, kutentha kwapansi, ndi kukonza ziro, amaphatikizidwa kwambiri muzinthu zazikulu za photovoltaic PCS inverters, kuphatikizapo DC-Link buffering, chitetezo cha IGBT, ndi grid harmonic kusefa. Amakhala ngati "woyang'anira wosawoneka" wa ntchito yabwino komanso yokhazikika mumagetsi a photovoltaic. Ukadaulo wawo umangoyendetsa makina osungira mphamvu a photovoltaic kukhala "opanda chisamaliro m'moyo wawo wonse," komanso amathandizira makampani opanga mphamvu zatsopano kufulumizitsa kukwaniritsidwa kwa grid parity komanso kusintha kwa zero-carbon.
Nthawi yotumiza: Aug-14-2025