Ua rau Phase poob hauv zaus Converter

Inverter theem poob feem ntau manifests li input theem poob (lub hwj chim mov sab) los yog tso zis theem poob (mos sab). Nyob ntawm qhov chaw ntawm qhov txhaum, cov laj thawj tuaj yeem raug cais raws li hauv qab no:

I. Input Phase Loss (Power Supply Side Phase Poob)

Qhov Tseem Ceeb:

1. Cov teeb meem kev xa hluav taws xob sab nraud:
* Fais fab Line Fault: Theem poob hauv cov khoom siv hluav taws xob sab saud, tsis ruaj tsis khov, lossis qhov hluav taws xob nce siab.
* Pem hauv ntej-Xaum Kev Ua Tsis Zoo: Kev sib cuag tsis zoo, xoob, lossis txawm tias puas tsuaj rau lub tshuab hluav taws xob, fuse, AC contactor, lossis lub davhlau ya nyob twg ntawm qhov kawg nkag.
* Kev siv tsis raug ntawm ib zaug - Theem Fais Fab: Lub inverter, uas yuav tsum tau txuas nrog peb lub -theem fais fab mov, yog yuam kev txuas mus rau ib qho -theem fais fab mov.

2. Internal Inverter Teeb meem:
* Rectifier Choj Kev puas tsuaj: Lub diode hauv tus choj rectifier tau tawg lossis qhib -circuited.
* Aging Filter Capacitor: Lub tsheb npav DC lim capacitor muaj hnub nyoog lossis muaj peev xwm tsis txaus, ua rau muaj qhov hluav taws xob ntau dhau thiab ua rau muaj kev tiv thaiv theem poob.

II. Output Phase poob (Lub cev muaj zog-Side Phase poob)

Qhov Tseem Ceeb:
1. Sab Nrauv Hlau thiab Tsav:

Output Line Breakage: Muaj qhov qhib Circuit Court lossis kev sib cuag tsis zoo nyob rau hauv lub cable lossis terminals ntawm cov zis inverter thiab lub cev muaj zog.

Lub cev muaj zog Winding Burnout: Ib lossis ntau theem ntawm lub cev muaj zog winding muaj qhov qhib Circuit Court lossis luv luv.

Load Mismatch: Thaum lub zog inverter ntau dua li lub zog ntawm lub cev muaj zog, lub inverter yuav tsis tuaj yeem kuaj pom cov khoom tso tawm tam sim no vim qhov tsis txaus tsis muaj -load tam sim no ntawm lub cev muaj zog, ua rau cov lus qhia tsis raug.

2. Internal Inverter Teeb meem:

IGBT Module Kev puas tsuaj: Kev puas tsuaj rau IGBT (Insulated Gate Bipolar Transistor) module, ib qho tseem ceeb ntawm cov inverter seem, tiv thaiv cov theem ntawm kev tso tawm kom raug.

Tsav Circuit Court tsis ua haujlwm: Ib qho txawv txav tshwm sim hauv lub teeb liab amplification circuit tsav lub IGBT. Piv txwv li, kev puas tsuaj rau cov khoom xws li optocouplers, tsav transistors, Zener diodes, thiab capacitors tuaj yeem tiv thaiv IGBT los ntawm kev ua haujlwm kom raug.

III. Kev kuaj xyuas Circuit Failures (General)

Tam sim no / Voltage Detection Abnormalities: Ib qho txhaum tshwm sim nyob rau hauv lub inverter lub sab hauv tam sim no los yog voltage detection Circuit Court nws tus kheej. Piv txwv li, kev puas tsuaj rau cov khoom xws li Hall effect sensors, voltage divider resistors, thiab kev ua haujlwm amplifier circuits tuaj yeem ua rau lub tswb tsis raug rau theem poob.

IV. Lwm yam ua rau

1. Tsis yog Inverter Parameter Chaw: Qee hom tuaj yeem lov tes taw tsis pom kev. Yog hais tias yuam kev rau "ib zaug-theem fais fab mov" tab sis tau txuas nrog peb theem, lub tswb cuav yuav tshwm sim; los yog "lub cev muaj zog ntsuas tam sim no" yuav raug teeb tsa tsawg dhau, ua rau muaj kev ceeb toom tsis tseeb rau theem poob hauv lub teeb.

2. Cov yam ntxwv ib puag ncig: Cov av noo tuaj yeem ua rau lub davhlau ya nyob twg oxidation thiab corrosion; plua plav tsub zuj zuj ntawm cov khoom siv hluav taws xob tshawb pom tuaj yeem ua rau muaj teeb meem txawv txav.