PCS Khaws Cia Zog
Cov txheej txheem khaws cia hluav taws xob yog ib qho tseem ceeb ntawm cov txheej txheem siv hluav taws xob tshiab niaj hnub no. Lawv siv dav vim lawv txo cov khoom pov tseg hluav taws xob thiab txhim kho kev ua haujlwm zoo ntawm cov txheej txheem fais fab. Vim muaj kev sib cuam tshuam ntawm cov roj teeb thiab lub zog fais fab, cov converters yuav tsum tau ua AC-DC hloov pauv thiab ua kom muaj zog ob txoj kev. Tsis tas li ntawd, cov converters ua lub luag haujlwm tseem ceeb hauv cov txheej txheem khaws cia hluav taws xob los ntawm kev tswj hwm lub zog los ntawm kev tswj hwm qhov loj thiab kev coj ntawm tam sim no, ua kom muaj kev txiav siab tshaj plaws thiab kev sau dej kom txhim kho kev siv hluav taws xob zoo, nrog rau kev tiv thaiv kev thauj khoom ntau dhau kom ntseeg tau tias muaj kev nyab xeeb ntawm lub cev.
Nruab nrab ntawm lub voj voog rectifier thiab lub voj voog converter, ib qhoDC-LINK capacitoryog qhov yuav tsum tau rau kev txhawb nqa tam sim no thiab kev lim dej. Nws lub luag haujlwm tseem ceeb yog nqus cov tam sim no siab ntawm lub tsheb npav DC-LINK, tiv thaiv cov hluav taws xob siab los ntawm kev tsim tawm ntawm impedance ntawm DC-LINK. Qhov no kuj tiv thaiv qhov kawg ntawm qhov load los ntawm kev cuam tshuam ntawm overvoltage.
Cov capacitors YMIN muaj cov yam ntxwv hauv qab no hauv thaj teb converter
01. Muaj Peev Xwm Loj
Lub DC-Link capacitor khaws lub zog hluav taws xob, ua rau nws muaj peev xwm muab lub zog txuas ntxiv mus rau lub converter system thaum muaj kev hloov pauv loj ntawm lub grid voltage lossis hluav taws xob tsis ua haujlwm, ua kom lub system ua haujlwm ib txwm. Tsis tas li ntawd, thaum lub converter system xav tau lub zog ntau, lub DC-Link capacitor tuaj yeem tso tawm lub zog khaws cia sai sai kom tau raws li qhov xav tau ib ntus. Hauv cov khoom siv inductive xws li cov motors, lub capacitor kuj muab kev them rov qab zog reactive, tswj lub zog voltage, thiab txhim kho kev ua haujlwm ntawm lub cev muaj zog. Qhov no ua lub luag haujlwm tseem ceeb hauv kev txhim kho kev ua haujlwm zoo thiab kev ruaj khov ntawm lub system.
02. Kev Tiv Thaiv Hluav Taws Xob Siab Ultra-High
Cov YMIN capacitors, nrog lawv qhov kev tiv thaiv hluav taws xob siab heev, kuj tseem tuaj yeem ua haujlwm ua cov khoom tiv thaiv. Thaum lub sijhawm ua haujlwm ntawm lub converter, lawv tiv thaiv cov khoom siv hluav taws xob rhiab heev los ntawm kev puas tsuaj los ntawm qhov hluav taws xob nce siab. Qhov no ua rau cov converters khaws cia hluav taws xob muab kev txhawb nqa hluav taws xob thiab zaus ruaj khov rau lub zog hluav taws xob, kom ntseeg tau tias kev ua haujlwm ntawm lub system txhim khu kev qha.
03. Kev Tiv Thaiv Surge Tam Sim No Siab
Cov capacitors YMIN zoo nqus tau cov hluav taws xob siab uas tsim los ntawm lub converter ntawm qhov kawg DC-Link, ua rau muaj kev tswj hwm lub zog tso zis kom raug los ntawm kev tswj hwm tam sim no. Qhov no ua kom lub converter ua tau raws li qhov xav tau ntawm ntau yam xwm txheej thiab xa cov zis AC zoo. Thaum lub sijhawm pib mos ntawm cov converters, YMIN capacitors yog ib feem ntawm lub voj voog them, pab tiv thaiv kev cuam tshuam ntau dhau rau lub zog nkag thiab lub nra.
04. Lub Neej Ntev
Cov YMIN capacitors, tsim los ntawm cov txheej txheem txheem thiab raug kuaj xyuas ua ntej xa khoom, muaj qhov ceev ceev thiab zoo heev tiv taus tam sim no. Cov yam ntxwv no ua rau cov converters hauv cov txheej txheem khaws cia hluav taws xob ua haujlwm ruaj khov rau lub sijhawm ntev, txo cov kev ua tsis tiav thiab cov nqi txij nkawm.
Snap-inaluminium electrolytic capacitorkev pom zoo xaiv
| Chaw Nres Tsheb Thov | Cov duab | Cov koob | Qhov ntsuas hluav taws xob (qhov hluav taws xob nce siab) | Kev Muaj Peev Xwm μF | Qhov Loj D * L | Kev ua haujlwm kub thiab lub neej |
| Kev Hloov Pauv Fais Fab |  | CW3 | 550 (600) | 470 | 35 * 50 | 105 ℃ 3000H |
 | CW6 | 550 (600) | 270 | 35 * 40 | 105 ℃ 6000H | |
| 560 | 35 * 70 | |||||
| 450 (500) | 680 | 35 * 50 |
Lub luag haujlwm, qhov zoo thiab cov yam ntxwv ntawmCov khoom siv hluav taws xob aluminium electrolytic capacitorshauv cov ntawv thov converter PCS:
Kev tiv thaiv hluav taws xob siab:Cov capacitors hluav taws xob siab tuaj yeem tswj tau cov dej ntws loj dua thiab tiv taus kev poob siab los ntawm kev hloov pauv hluav taws xob siab lossis kev hloov pauv ntawm lub nra hnyav.
Kev tiv thaiv qis sib npaug (ESR) thiab kev kam rau siab tam sim no:Nrog ESR qis thiab siab ripple tam sim no tsis kam, ESR qis ntawm lub capacitor pab txo cov kev hloov pauv voltage thiab txhim kho kev ruaj khov ntawm lub kaw lus.
Lub neej ntev thiab kev ntseeg siab siab:Kev ua haujlwm kub thiab lub neej ntev ua rau nws ua haujlwm ruaj khov hauv qhov chaw nyuaj. Qhov no yog qhov tseem ceeb rau kev siv hluav taws xob tsis tu ncua xws li cua thiab photovoltaic fais fab.
Cov yam ntxwv zoo ntawm kev tswj cua sov:Ua kom cov cua sov tawm zoo kom tiv thaiv kev kub dhau los ntawm kev ua rau kev ua haujlwm poob qis lossis ua tsis tiav.
Kev ua kom zoo dua ntawm qhov ntim:Muaj peev xwm ceev ceev thaum siv qhov chaw tsawg dua.
Pom zoolub capacitor zaj duab xiskev xaiv
| Chaw Nres Tsheb Thov | Cov duab | Cov koob | Qhov ntsuas hluav taws xob (qhov hluav taws xob nce siab) | Kev Muaj Peev Xwm μF | Qhov Loj W*H*B | Kev ua haujlwm kub thiab lub neej |
| Kev Hloov Pauv Fais Fab |  | MDP | 500 | 22 | 32 * 37 * 22 | 105 ℃ 100000H |
| 120 | 57.5 * 56 * 35 | |||||
| 800 | 50 | 57.5 * 45 * 30 | ||||
| 65 | 57.5 * 50 * 35 | |||||
| 120 | 57.5 * 65 * 45 | |||||
| 1100 | 40 | 57.5 * 55 * 35 | ||||
| 1500 xyoo | Kho tau raws li koj xav tau | Kho tau raws li koj xav tau |
Lub luag haujlwm, qhov zoo thiab cov yam ntxwv ntawmcov capacitors zaj duab xishauv cov ntawv thov converter PCS:
Kev tiv thaiv qis dua (ESR):Piv nrog cov electrolytic capacitors ib txwm muaj, nws muaj ESR qis dua, kev poob me dua, thiab txhim kho kev ua haujlwm ntawm tag nrho lub cev.
Kev tiv thaiv hluav taws xob siab:Nws tuaj yeem tiv taus cov hluav taws xob siab dua kom ntseeg tau tias lub kaw lus ua haujlwm ruaj khov hauv qhov chaw muaj hluav taws xob siab. Nws qhov ntsuas hluav taws xob tuaj yeem ncav cuag 350V-2700V, ua tau raws li qhov xav tau ntawm ntau yam kev siv.
Kev ruaj khov kub zoo heev:Kev ruaj khov ntawm qhov kub thiab txias siab dua, los ntawm cov ntaub ntawv zoo thiab cov txheej txheem tsim khoom siab heev, ua kom muaj kev ua haujlwm ruaj khov hauv qhov chaw kub siab.
Lub neej ua haujlwm ntev dua:Cov capacitors zaj duab xis metallized muaj lub neej ua haujlwm ntev dua thiab muab kev txhawb nqa zoo dua rau cov tshuab hluav taws xob fais fab.
Qhov me dua:Cov txheej txheem tsim khoom tshiab tsis yog tsuas yog txhim kho qhov ceev ntawm cov capacitors xwb, tab sis kuj txo qhov ntim thiab qhov hnyav ntawm tag nrho lub tshuab nrog qhov ntim me dua, muab ntau txoj hauv kev rau kev nqa khoom thiab kev ywj pheej ntawm cov khoom siv.
Kev ua tau zoo dua ntawm tus nqi:Cov khoom lag luam DC-Link zaj duab xis capacitor muaj 30% siab dua dv/dt kam rau siab thiab 30% ntev dua li lwm cov zaj duab xis capacitors hauv khw, uas tsis yog tsuas yog muab kev ntseeg siab zoo dua rau SiC/IGBT circuits, tab sis kuj muab kev siv nyiaj zoo dua.
Sau luv luv
YMINCov capacitors ua lub luag haujlwm tseem ceeb hauv cov txheej txheem khaws cia lub zog vim lawv muaj peev xwm loj, tiv taus hluav taws xob siab heev, thiab lub neej ntev. Lawv pab cov inverters khaws cia lub zog ua tiav kev hloov pauv hluav taws xob ob txoj kev, kev tswj hwm hluav taws xob thiab lwm yam haujlwm, thiab ua kom zoo dua qhov kev faib tawm ntawm lub zog hluav taws xob los ntawm kev txiav qhov siab tshaj plaws thiab kev sau cov hav. Lawv txhim kho kev siv hluav taws xob ntawm cov inverter hauv lub cev khaws cia lub zog thiab yog qhov kev xaiv zoo tshaj plaws rau cov inverters hauv thaj chaw capacitor.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-17-2024