Peb -Phase Inverters Nrog SiC MOSFET: Lub Ntsiab Rau Kev Txhim Kho Lub Cev Muaj Zog

Industrial motors xav tau kev txhim khu kev qha thiab siv zog daws teeb meem. Qhov nopeb -phase inverter, tsim nrog Silicon Carbide (SiC) MOSFET thev naus laus zis, sawv cev rau ib kauj ruam tseem ceeb hauv kev ua kom tau raws li qhov xav tau ntawm lub zog thiab kev ua haujlwm ntawm cov kev siv niaj hnub no. SiC MOSFETs raug lees paub rau lawv qhov qis dua ntawm -tsis kam thiab siab dua qhov kev puas tsuaj hluav taws xob, ua rau lawv zoo tagnrho rau kev ua haujlwm siab -voltage, siab - kev siv tau zoo. Kab lus no nthuav tawm lub inverter cov lus qhia, cov khoom tseem ceeb, thiab cov yam ntxwv ua haujlwm.

1. Cov ntsiab lus tseem ceeb

Qhov peb -theem inverter no yog tsim los txhim kho lub zog hloov pauv nrog lub zog siab siab -voltage tso zis:

Input thiab Output Ratings: Lub inverter txais peb -theem AC input ntawm 340-440V, nrog rau tam sim no tuav txog li 16A. DC tso zis ntau yam yog 530-600V, txhawb kev hloov hluav taws xob zoo rau kev lag luam motors.

Tswj fais fab mov: Ib qho 20V tswj fais fab mov yog pub rau lub rooj tsav xwm inverter kom ntseeg tau tias kev tswj fais fab zoo ib yam thoob plaws hauv Circuit Court.

Tsav System thiab Txias: Lub inverter siv 2-theem tsav system nrog qhov siab tshaj plaws hloov zaus ntawm 100 kHz. Nws suav nrog cov kev xaiv txias rau convection lossis yuam cua, ua kom muaj kev ruaj ntseg hauv kev thauj khoom.

Dimensions: Lub rooj tsavxwm ntsuas 250x145 mm, featuring plaub -txheej txheej txheem rau ib tug compact hneev taw thiab lub zog siab.

2. Cov ntsiab lus tseem ceeb thiab kev sib txuas

Lub inverter muaj xws li AC-DC Circuit Board thiab ib lub rooj tsavxwm inverter, txhua qhov sib xyaw ua ke ntawm cov khoom tseem ceeb uas haum rau siab - lub zog, cov khoom tso tawm kom ntseeg tau:

SiC MOSFETs: Lub inverter siv Toshiba's TW045Z120C thiab TW045N120C SiC MOSFETs, ua kom muaj kev hloov pauv ntawm cov hluav taws xob siab, uas yog qhov tseem ceeb rau kev thov kev lag luam.

Gate Driver thiab Isolation Amplifier: Tus neeg tsav tsheb rooj vag TLP5774H ua kom ceev ceev thiab cais lub rooj vag tswj, thaum lub TLP7820 cais amplifier muab cais sensing ntawm lub cev muaj zog theem tam sim no thiab tsheb npav voltage. Qhov kev sib cais no txhim kho kev nyab xeeb thiab raug ntawm lub cev muaj zog tswj qhov system.

Main Terminals:

AC Input thiab DC Output Terminals: Cov terminals no tso cai rau lub inverter txuas mus rau peb -theem AC fais fab mov, tso zis DC fais fab, thiab tswj lub hwj chim tswj ntawm AC-DC thiab inverter boards.

Temperature Sensing and Fault Detection: Kev ntsuas kub kom ntseeg tau tias SiC MOSFETs ua haujlwm nyob rau hauv qhov txwv tsis pub muaj kev nyab xeeb, thaum lub tshuab kuaj xyuas qhov yuam kev daws teeb meem xws li overcurrent, overvoltage, thiab overtemperature.

3. Kev saib xyuas kev ua haujlwm

Cov qauv kev ua haujlwm ntawm lub inverter no suav nrog cov ntsiab lus tseem ceeb ntawm kev sib txuas thiab kev tiv thaiv kev ua txhaum:

Gate Voltage Setting: Rooj vag voltage jumpers yog teem los tswj SiC MOSFETs hauv lawv lub xeev on/off. Lawv tuaj yeem raug teeb tsa rau 18V (ntawm- xeev) thiab -2V (tawm- xeev), ua kom muaj txiaj ntsig zoo ntawm ob sab siab- sab thiab qis-sab MOSFETs.

Fault Detection and Protection: Lub kaw lus yog tsim los tswj ntau yam kev txhaum, xws li overcurrent, overvoltage, thiab kub. Raws li cov xwm txheej no, MOSFETs tau kaw cia kom tsis txhob muaj kev puas tsuaj, rov ua haujlwm thaum muaj kev nyab xeeb rov qab los.

4. Kev ua tau zoo thiab siv tau

Hauv kev ntsuas kev ua tau zoo, lub inverter tau pom qhov ua tau zoo tshaj plaws ntawm 98.6% nyob rau hauv qhov kev pom zoo-tshwj xeeb, thaum tsav tsheb 2.2 kW lub cev muaj zog nrog 400V AC input thiab 440V tso zis. Qhov kev ua haujlwm siab no qhia txog qhov inverter qhov haum rau hnyav- daim ntawv thov lub luag haujlwm uas txuag hluav taws xob thiab kev ua haujlwm txhim khu kev qha yog qhov tseem ceeb.

Toshiba peb -theem inverter siv SiC MOSFETs qhia kev nce qib hauv kev ua haujlwm ntawm lub cev muaj zog thiab kev nyab xeeb. Nrog nws cov qauv tsim, kev ua haujlwm siab, thiab ua tau - hauv kev tiv thaiv cov yam ntxwv, nws muab cov kev daws teeb meem zoo rau kev siv hluav taws xob niaj hnub kev lag luam. SiC MOSFET thev naus laus zis ua kom lub tshuab hluav taws xob no yog yav tom ntej - pov thawj, muab kev txhawb nqa rau siab -voltage, siab - kev ua haujlwm.