Yuav ua li cas kuaj lub hwj chim module ntawm zaus converter nrog ib tug multimeter
Thaum kuaj pom lub zog hluav taws xob ntawm txoj kev (tshem tawm ntawm daim phiaj hluav taws xob), ntsuas cov khoom siv hluav taws xob thiab cov emitter ntawm rau lub diodes ntawm tus choj rectifier thiab rau IGBT raj ntawm tus choj tso zis feem nrog tus pointer multimeter R × l los txiav txim seb lawv tau tawg lawm. l thiab Table 2 yog cov txiaj ntsig ntsuas ib txwm, txwv tsis pub muaj cov khoom tawg hauv. Siv lub pointer multimeter Bx1k los ntsuas qhov tsis kam ntawm lub rooj vag thiab emitter ntawm rau IGBT raj (tsav lub teeb liab input terminals) thiab lawv yuav tsum zoo ib yam. Yog tias muaj qhov sib txawv, lub voj voog tsav lossis lub IGBT raj puas lawm. Cov kev ntsuas saum toj no tsuas yog ntsuas qhov kev puas tsuaj ntawm IGBT raj. Tsis muaj qhov qhib Circuit Court puas tuaj yeem kuaj pom. Tom qab lub hwj chim module raug tshem tawm ntawm lub rooj tsav xwm Circuit Court, txhua IGBT raj tuaj yeem ntsuas ntxiv. Cov txheej txheem muaj nyob rau hauv daim duab 1. Lub koob ntawm sab laug qhia tias tsis muaj conduction. Lub koob ntawm sab xis qhia txog kev txuas ntxiv. Yog tias nws tsis tuaj yeem qhib thiab kaw, lub raj puas lawm.
TLP251 yog optocoupler tsav Circuit Court feem ntau siv nyob rau hauv zaus converters. Thaum lub zog module tawg, nws feem ntau cuam tshuam rau lub voj voog. Nws sab hauv Circuit Court thiab ntsuas txoj kev yog qhia nyob rau hauv daim duab 2. Thaum lub ② tus pin raug txiav los yog txuas nrog 10V fais fab mov los ntawm 3kΩ resistor. ⑥ Tus pin muaj qhov hloov pauv siab lossis qis ntawm 0V lossis 9V.
Cov qauv ntawm lub zog inverter module:
Ib feem ntawm cov pob khoom sab hauv ntawm lub tshuab hluav taws xob inverter yog ib-theem lossis peb-theem choj rectifier Circuit Court tsim los ntawm diodes, thiab lwm qhov yog tus choj peb-theem uas muaj rau IGBT raj (insulated gate bipolar transistors) thiab rau damping. diodes siv ua ke hom tso zis Circuit Court.
Cov qauv sab hauv thiab tus pin daim duab kos ntawm P083A2003 lub hom phiaj dav dav inverter zog module. R, S, T yog lub hwj chim input terminals, lub module yog powered los ntawm AC 220V, tus R pin yog khoob, thiab sab hauv yog ib-theem choj rectifier.
P1 yog lub davhlau ya nyob twg zoo ntawm ntxiv rau 300V rectification tso zis, N1 yog qhov tsis zoo lub davhlau ya nyob twg ntawm rectification tso zis, ob lub pins yog sab nraud txuas nrog lim electrolytic capacitors, thiab txuas nrog P2 los ntawm kev sib nrig sib inductance coil P1, N1 txuas nrog N2, thiab cov khoom siv fais fab. mus rau tus choj tso zis muaj li ntawm rau IGBT raj.
Cov khoom siv ntawm peb lub IGBT raj ntawm sab sauv ib nrab ntawm peb-theem tso zis choj txuas nrog rau qhov zoo ntawm cov khoom siv hluav taws xob, thiab cov emitters yog peb-theem tso zis terminals ntawm U, V, thiab W feem. Cov emitters thiab daim phiaj ntawm peb lub raj tsim ib nrab ntawm peb-theem Choj tsav teeb liab input terminals GU-U, GV-V, GW-W. Cov khoom siv ntawm peb IGBT raj ntawm qhov qis dua ib nrab ntawm peb-theem tso zis choj txuas nrog U, V, thiab W feem, thiab cov emitters txuas nrog rau qhov tsis zoo ntawm cov khoom siv hluav taws xob. Cov kab hluav taws xob ntawm peb lub raj thiab qhov tsis zoo ntawm cov khoom siv hluav taws xob tsim cov teeb liab tsav ntawm peb-theem qis ib nrab choj. Input terminals GX, GY, GZ, B yog nres tswj terminals.
Tsis muaj braking circuit hauv no module. TH yog cov khoom siv thermistor sab hauv. Txawm hais tias cov pins ntawm lwm hom kev siv hluav taws xob siv hluav taws xob dav dav thiab cov cim ntawm lub rooj tsav xwm sib txawv, nws tsis yooj yim los txheeb xyuas cov haujlwm tseem ceeb ntawm tus pin. Cov khoom siv high-end siv cov khoom siv hluav taws xob ntse, uas muaj cov tsav tsheb thiab cov braking circuits, thiab sib txuas ntau tus pins.
Raws li lub npe implies, lub hwj chim module ntawm lub inverter yog kev sib txuas ntawm lub hwj chim hluav taws xob nyob rau hauv lub inverter thiab ces potting thiab sealing rau hauv ib tug module raws li tej yam functions. Lub inverter nws tus kheej yog tsim los ntawm chav tswj thiab lub zog module. Feem ntau, lub inverter fais fab module ua tiav lub hom phiaj ntawm kev txo tus naj npawb ntawm cov khoom thiab txo cov kab hluav taws xob hauv inductance los ntawm kev siv cov txheej txheem molding ntawm lub casing thiab sab nraud electrode terminals.
