Dab tsi yog lub luag haujlwm ntawm diodes nyob rau hauv faib cov cua fais fab mov system?

1, Kev Pom Zoo Circuit Court: ua tiav tau txais txiaj ntsig hloov dua tshiab los ntawm AC rau DC
Ib qho ntawm cov haujlwm tseem ceeb ntawm kev faib cov hluav taws xob system yog kom hloov rau lub zog hluav taws xob rau hauv DC lub zog rau kev cia hauv cov roj teeb lossis kev tsav tsheb ncaj qha ntawm DC loads. Cov ntaub ntawv Diode ib qho kev tswj hwm tsis tau muaj tseeb ntawm cov txheej txheem no, ua tiav "puv ib nrab ntawm cov cim kos npe rau hauv Unidirectional Pulsating DC Zog.

Cov txiaj ntsig kev ua haujlwm:

Yooj yim thiab txhim khu kev qha qauv: Peb {{}}}}}}}}}} pa taws rectex, tsis tas yuav muaj kev tswj hwm cov nyom, thiab muaj qhov tsis ua tiav. Piv txwv li, Fuji lub Mur60120 diode (withstand voltage 124 6} {}}} pa hluav taws xob ntawm 98.5% hauv 10kW qib cov tshuab.
Tseem ceeb tus nqi - ua tau zoo: piv nrog cov hluav taws xob rectifier muaj ntau dua 60%, thiab cua sov dissupation tsim, tus nqi tiv thaiv kev nqis peev, tus nqi tiv thaiv kev nqis peev ntawm lub cev.
Haum rau qhov chaw hnyav uas muaj peev xwm nyob hauv qhov kub thiab txias, tiv taus ntau dua ntawm cov xwm txheej ntawm ntau dua 20 xyoo.
Rooj plaub:
An offshore wind farm uses diode rectifier valve to replace the traditional modular multi-level rectifier valve (MMC). Raws tib yam kev sib kis tau, lub chaw hloov tsheb hloov tau txo qis ntawm 80%, qhov hnyav los ntawm 65%, thiab lub sijhawm teeb tsa los ntawm 20%. Tus tub laj thawj tseem ceeb yog hais tias doifier valve tsis tas yuav tau kev ywj pheej ntawm ib qho kev poob qis ntawm 20% piv rau MMC, ua rau 3.2% nce hauv kev ua haujlwm.

2, anti rov qab kev tiv thaiv kev sib txuas: Tsim thawj kab ntawm kev tiv thaiv rau kev ruaj ntseg
Kev them nyiaj sib txuas ntawm kev faib tawm cov pa hluav taws xob system yuav tsum tau tshaj tawm nrog ntau lub zog hluav taws xob (xws li cov hluav taws xob tseem ceeb, cov roj hluav taws xob, thiab roj teeb). Yog hais tias tus neeg siv tau thim rov qab cov polarity ntawm lub zog hluav taws xob, nws yuav ua rau cov capitalitors, nws yuav ua rau lub capacitors sab hauv, mosfets, thiab lwm yam ntawm tus maub los hlawv tawm. Los ntawm kev sib txuas dones nyob rau hauv cov lus ntawm lub hwj chim tawm, tsawg- tus nqi ·

Cov ntsiab lus tsim:

Optimization ntawm nraim coltition voltage poob: schottky diodes, thiab nyob rau hauv 5kw qib qis dua li 0.3V%, ntau dua li ib txwm muaj silicon diodes (0.7v).
Rov Qab Primage Tam Sim No Tswj: Zoo tagnrho Diode ICS (xws li Dhuav IcS (xws li ROC4412) tuaj yeem thim rov qab ntawm lub roj teeb vim yog kev xau tam sim no hauv hom standby.
Surge tam sim no supression: los ntawm txuas NTC cov cua nab kuab nyob rau hauv parallel nrog dodges nrog lub sij hawm ntawm lub zog ntawm tuaj yeem txwv, tiv thaiv cov castresk capacitor. Piv txwv li, qee hom ntawm stacked lub zog cia khoom yuav khoom adopts lub tswvyim ntawm "schottky diode + NTC thermistor". Hauv kev ntsuam xyuas thim rov qab, qhov rov qab tam sim no tsuas yog txwv tsis pub dhau 12ma, thiab lub kaw lus tsis raug puas.
Ua tsis tiav Pode tsom xam:
Nyob rau hauv cov ntaub ntawv txij nkawm ntawm lub zog cua maub los, vim tsis muaj kev tiv thaiv kev tiv thaiv kev tiv thaiv rov qab, tus neeg siv hluav taws xob yuam kev, ua rau tawg ntawm cov twj tso tawm tswv yim. Qhov ua raws li {{{{-}}} kev txhim kho Circuitualion Circuitualion "tus kheej rov qab ua fuse", uas txiav tawm ntawm lub fuse ", uas txiav tawm ntawm lub fuse", uas txiav tawm ntawm lub fuse "

3, Lub zog rov qab txoj kev tswj: Ua kom pom kev tswj hwm lub zog ntawm braking resistors
Thaum cov cua ceev tshaj qhov ntsuas tus nqi, cov cua tshuab yuav tsum tau haus lub zog ntau dhau los ntawm kev tswj lub zog lossis kev tawm tsam. Yog tias tus nres tsis kam Circuitor tsis tsim nyog tsim kom yog, rov qab tam sim no tuaj yeem ntws mus rau hauv lub maub los los ntawm lub cev igb los ntawm lub cev igb los ntawm lub cev igb los ntawm lub cev igb los, ua rau muaj feem tiv thaiv dhau los. Cov Diode tuaj yeem tsim lub zog ywj pheej txoj kev rov qab txoj kev, kom lub braking tam sim no tsuas yog tso tawm los ntawm lub resistor.

Cov Kev Siv Raug:

Khaws cov hluav taws xob ua ke: hauv DC / DC buck ci ntsa iab cia, tsis txhob muaj ntau tiam neeg (xws li 1n58193}} voltage rov qab lub zog hluav taws xob thaum igbt raug muab tua. Raws li cov ntaub ntawv ntsuas tiag tiag, qhov kub nce ntawm lub braking resistor siv cov txheej txheem no txo ​​ntawm 120 qib, thiab lub system ua haujlwm tau nce los ntawm 3.2%.
Boost Circuit Coion Diode: Hauv kev txhawb nqa Circuit Court, ib qho Diode (xws li mbr20100CT) tiv thaiv lub davhlau ya tawm ntawv, tiv thaiv cov qes- voltage sab cheebtsam. Piv txwv li, tom qab muaj qee hom hluav taws xob ntawm 5kw cua fais fab kev ua tiav cov phiaj xwm no, lub neej kev pabcuam ntawm peb zaug, thiab lub voj voog txij nkawm txuas ntxiv ntawm 6 lub hlis mus rau 18 lub hlis.
4, Daim Ntawv Thov Khoom Tshiab: Silicon Carbide Diode Drives System Txhim Kho
Nrog kev paub tab ntawm silicon carbide (sic) diodes, lawv tus lej rov qab los hloov pauv ntawm silicon} Piv txwv li, CREE's C3D10060AA SIC SCHOTTKY DIODE txo qis los ntawm kev ua silicon donges

Daim Ntawv Thov:

Loj zog DC / DC converter: SIC DIODES tuaj yeem nce cov chaw hloov mus rau tshaj 200kHz, txo qis qhov loj ntawm inductors thiab capacitors. Tom qab txais cov sic dic diodes nyob rau hauv ib qho hom hluav taws xob hauv 10%, qhov hnyav yog txo los ntawm 30%, thiab lub zog hluav taws xob tau nce rau 5kW / kg.
Nruab nrab cov zaus hloov pauv hloov pauv: nyob rau hauv 10kv hluav taws xob hluav taws xob hloov pauv, SIC DIODES tuaj yeem txo tus lej cascades thiab txo qis system nyuaj. Siemens siv tsib qib cascaded h {2} Tus choj toppe nrog rau cov neeg muaj hnub nyoog qis dua, tsawg dua, peb npaug, thiab txo qis ntim los ntawm 40%.