Kwiinkqubo ezintsha ze-photovoltaic zamandla, isiguquli sokugcina amandla (i-PCS) yeyona ndawo ingundoqo yokuguqulwa okusebenzayo kwamandla e-photovoltaic DC ibe yigridi yamandla e-AC. Ii-capacitors zefilimu ze-YMIN, kunye nokuchasana kwe-voltage ephezulu, ilahleko ephantsi, kunye nobomi obude, zizinto eziphambili zokuphucula ukusebenza kwee-inverters ze-PCS ze-photovoltaic, ukunceda izityalo zamandla e-photovoltaic zifezekise ukuguqulwa kwamandla okusebenzayo kunye nokuphuma okuzinzile. Imisebenzi yabo engundoqo kunye neenzuzo zobugcisa zezi zilandelayo:
1. "I-Voltage Stabilization Shield" ye-DC-Link
Ngethuba lenkqubo yokuguqulwa kwe-AC-DC kwii-inverters ze-PCS ze-photovoltaic, ibhasi ye-DC (DC-Link) ixhomekeke kwi-high pulse currents kunye ne-voltage spikes. I-YMIN ifilimu capacitors ibonelela ngezi nzuzo ngokuthi:
• I-High-Voltage Surge Absorption: Ukumelana nombane ophezulu we-500V ukuya kwi-1500V (i-customizable), ifunxa i-spikes yamandla exeshana eveliswa zizitshixo ze-IGBT/SiC, zikhusela izixhobo zombane kwiingozi zokuqhekeka.
• I-ESR ephantsi ye-Smoothing yangoku: I-ESR ephantsi (i-1/10 ye-aluminium yendabuko ye-electrolytic capacitors) ithatha ngokufanelekileyo i-high-frequency ripple current kwi-DC-Link, ukunciphisa ukulahlekelwa kwamandla kunye nokuphucula ukuguqulwa kwamandla okusebenza kakuhle.
• Isithinteli soGcino lwaMandla oMmandla oMkhulu: Uluhlu olubanzi lomthamo luvumela ukutshajiswa nokukhupha ngokukhawuleza ngexesha lokuguquguquka kwamandla ombane wegridi, ukugcina uzinzo lombane webhasi ye-DC kunye nokuqinisekisa ukusebenza okuqhubekayo kwe-PCS.
2. Ukukhuselwa kabini koMbane oPhezulu woMbane kunye noZinzo loBushushu
Izikhululo zombane zePV zihlala zijongana nemekobume erhabaxa efana nobushushu obuphezulu kunye nokufuma okuphezulu. I-YMIN capacitors bhanyabhanya ihlangabezana nale mingeni ngoyilo oluyilayo:
• Ukusebenza okuZinzileyo kuLuhlu oluBanzi loBubushushu: Amaqondo obushushu okusebenza agubungela -40°C ukuya kwi-105°C, kunye nezinga lokuthotywa kwe-capacitance elingaphantsi kwe-5% kwiindawo ezinobushushu obuphezulu, ukuthintela ukwehla kwenkqubo ngenxa yokuguquguquka kobushushu.
• Umthamo wangoku we-Ripple: I-Ripple yangoku yokusingatha i-Ripple ingaphezu kwamaxesha e-10 ye-electrolytic capacitors yendabuko, ukucoca ngokufanelekileyo ingxolo ye-harmonic kwimveliso ye-PV kunye nokuqinisekisa ukuba umgangatho wamandla odityanisiweyo udibana nemigangatho kazwelonke.
• Ubomi obude kunye noLondolozo lwaMahala: Ngobomi obufikelela kwiiyure ze-100,000, ukugqithisa kakhulu iiyure ze-30,000-50,000 ze-aluminium electrolytic capacitors, oku kunciphisa iindleko zokusebenza kunye nokugcinwa kwezityalo zamandla e-photovoltaic.
3. I-Synergy kunye ne-SiC / IGBT Devices
Njengoko iinkqubo ze-photovoltaic ziguqukela kwi-voltages ephezulu (i-1500V ye-architecture ibe yinto eqhelekileyo), i-YMIN ye-capacitor yefilimu encinci ihambelana ngokunzulu kunye ne-semiconductors yamandla esizukulwana esilandelayo:
• Inkxaso yoTshintsho oluPhezulu oluPhezulu: Uyilo oluphantsi lwe-inductance luhambelana neempawu eziphezulu ze-SiC MOSFETs (i-switch frequency> 20kHz), ukunciphisa inani lamacandelo angenayo kunye negalelo kwi-miniaturization yeenkqubo ze-PCS (inkqubo ye-40kW idinga kuphela i-8 capacitors, xa kuthelekiswa ne-22 ye-silicon-based solutions).
• Ukuphuculwa kwe-dv/dt Ukumelana: Ukuziqhelanisa okuphuculweyo kutshintsho lwamandla ombane, ukuthintela ukushukuma kwamandla ombane okubangelwa sisantya sokutshintsha ngokugqithisileyo kwizixhobo zeSiC.
4. Ixabiso leNqanaba leSistim: UkuPhuculwa kokuSebenza kwamandla kunye nokuPhuculwa kweNdleko
• Ukuphucula ukusebenza kakuhle: Uyilo oluphantsi lwe-ESR lunciphisa ukulahleka kobushushu, lukhulise ukusebenza kakuhle kwe-PCS lulonke kunye nokwandisa kakhulu ukuveliswa kwamandla ngonyaka.
• Ugcino lweNdawo: Uyilo oluphezulu loxinaniso lwamandla (ama-40% amancinci kuneecapacitors zesiqhelo) luxhasa ukumiselwa kwesixhobo se-PCS esibambeneyo kwaye sinciphisa iindleko zofakelo.
Ukuqukumbela
Ii-capacitors zefilimu ze-YMIN, kunye neenzuzo zabo eziphambili zokunyamezela kwamandla ombane, ukunyuka kweqondo lokushisa eliphantsi, kunye nokugcinwa kwe-zero, zihlanganiswe ngokunzulu kwiinkalo eziphambili ze-photovoltaic PCS inverters, kuquka i-DC-Link buffering, ukhuseleko lwe-IGBT, kunye nokucoca igridi ye-harmonic. Basebenza "njengomgcini ongabonakaliyo" wokusebenza ngokufanelekileyo kunye nokuzinza kwizityalo zamandla e-photovoltaic. Itekhnoloji yabo ayiqhubeli nje kuphela iinkqubo zokugcina amandla e-photovoltaic ukuya “kulondolozo-simahla kuwo wonke umjikelo wabo wobomi,” kodwa ikwanceda imboni yamandla entsha ikhawulezise ukufezekiswa kokulingana kwegridi kunye notshintsho lwe-zero-carbon.
Ixesha lokuposa: Aug-14-2025