Tus txheej txheem ntawm kev siv ib tug multimeter mus ntes lub hwj chim module ntawm ib zaus converter
Thaum lub hwj chim module nyob rau hauv Circuit Court nrhiav tau (tso tawm los ntawm lub hwj chim daim phiaj), siv ib tug multimeter los ntsuas rau lub diodes ntawm lub rectifier choj thiab lub collector thiab emitter ntawm rau lub IGBT raj ntawm cov zis choj nyob rau hauv ob qho tib si zoo thiab tsis zoo cov lus qhia, feem. , los txiav txim seb lawv puas tawg. Cov lus 1 thiab 2 yog cov txiaj ntsig ntsuas ib txwm muaj, txwv tsis pub muaj cov khoom tawg sab hauv. Ntsuas qhov tsis kam ntawm lub rooj vag thiab emitter ntawm rau IGBT raj siv lub pointer multimeter hauv Bx1k ntau. Qhov kev tawm tsam (ntawm qhov kev tawm tswv yim kawg ntawm lub teeb liab tsav tsheb) yuav tsum yog tib yam. Yog tias nws txawv, nws qhia txog kev puas tsuaj rau lub voj voog tsav tsheb lossis IGBT raj. Cov kev ntsuas saum toj no tsuas yog ntsuas qhov kev puas tsuaj ntawm cov hlab IGBT. Tsis muaj qhib Circuit Court puas lawm. Tom qab tshem tawm lub hwj chim module los ntawm lub rooj tsav xwm Circuit Court, kev ntsuas ntxiv tuaj yeem ua rau ntawm txhua lub IGBT raj, raws li pom nyob rau hauv daim duab 1. Sab laug tes ntawm lub 'meter' qhia tias tsis muaj conduction. Lub koob saib ntawm sab xis qhia txog kev txuas ntxiv. Yog tias nws tsis tuaj yeem ua thiab txiav tawm, nws yog vim kev puas tsuaj rau lub raj.
Cov qauv ntawm zaus converter fais fab module:
Lub ntim sab hauv ntawm lub inverter fais fab module muaj ib-theem ib theem lossis peb-theem choj rectifier Circuit Court tsim los ntawm diodes, thiab peb-theem choj tso zis hluav taws xob tsim los ntawm rau IGBT transistors (insulated gate bipolar transistors) thiab rau damping diodes siv nyob rau hauv. ua ke.
Peb lub IGBT tube collectors ntawm lub sab sauv ib nrab choj ntawm peb-theem tso zis choj txuas mus rau qhov zoo kawg ntawm lub hwj chim mov, thiab cov emitters yog U, V, thiab W peb-theem tso zis terminals. Cov emitters thiab rooj vag ntawm peb lub raj tsim cov input terminals GU-U, GV-V, thiab GW-W rau lub teeb liab tsav tsheb ntawm peb-theem sab sauv ib nrab choj. Qhov qis dua ib nrab ntawm peb-theem tso zis choj muaj peb lub IGBT tube collectors txuas nrog U, V, thiab W feem, nrog cov emitter txuas nrog qhov tsis zoo kawg ntawm cov khoom siv hluav taws xob. Lub rooj vag ntawm peb lub raj thiab qhov tsis zoo kawg ntawm cov khoom siv hluav taws xob tsim cov tswv yim terminals GX, GY, thiab GZ rau lub teeb liab tsav tsheb ntawm peb theem qis ib nrab choj. B yog lub braking tswj davhlau ya nyob twg.
Tsis muaj braking circuit hauv no module. TH yog cov khoom siv hluav taws xob tiv thaiv los ntawm cov thermistor sab hauv. Txawm hais tias cov pins thiab cov cim ntawm lub rooj tsav xwm hauv Circuit Court ntawm lwm cov qauv ntawm universal zaus converter fais fab modules yuav txawv, nws tsis yooj yim los txheeb xyuas cov haujlwm tseem ceeb ntawm tus pin. Cov khoom lag luam siab txais yuav cov khoom siv hluav taws xob ntse, uas muaj cov tsav tsheb thiab cov braking circuits sab hauv, nrog rau ntau tus pins.
Lub hwj chim module ntawm ib zaus converter, raws li lub npe qhia, yog ib tug module uas encapsulates lub hwj chim hluav taws xob thiab lub hwj chim Cheebtsam ntawm zaus converter raws li ib tug tej yam functional ua ke. Lub zaus converter nws tus kheej yog tsim los ntawm chav tswj thiab lub zog module. Nyob rau hauv dav dav, lub hwj chim module ntawm ib zaus converter yog tsim los ntawm integrating lub plhaub sab nraud thiab sab nraud electrode terminals kom txo tau tus naj npawb ntawm cov Cheebtsam thiab inductance ntawm sab hauv.
