Kev tsom xam ntawm cov laj thawj rau lub zog qis ntawm lub cev muaj zog PFC
Kuv, lub cev muaj zog tsim thiab cov kev ua haujlwm ua haujlwm
1. Kev tsim qauv tsis xws nyob rau hauv windings thiab hlau cores
Cov qauv siv winding uas tsis tsim nyog ntawm lub cev muaj zog (xws li kev faib cov khoom sib nqus hlau uas muaj peev xwm ua rau cov khoom siv sib nqus hlau) lossis thaum kawg siv hluav taws xob, thiab thaum kawg yuav txo tau lub hwj chim.
2. Lub teeb thauj lossis tsis muaj kev ua haujlwm
Thaum lub nra hnyav ntawm lub cev muaj zog yog qhov qis dua li lub zog hluav taws xob nce ntxiv, thiab lub zog rau cov hluav taws xob ua kom tiav, thiab lub zog hluav taws xob yuav poob hauv qab 0. 5. Piv txwv li, nyob rau hauv lub teeb ntsaws cov kev mob, qhov kev tsim nyog tam sim no ntawm lub cev muaj zog tuaj yeem suav tau ntau dua 60% ntawm tag nrho cov tam sim no.
3. Voltage hloov pauv thiab theem ua haujlwm
Tsis khov kho voltage (xws li Volfage tso tawm) tuaj yeem ua rau muaj kev nce qib tam sim no, ua haujlwm theem ntawm voltage thiab tam sim no, thiab tsis tshua muaj hwj chim. Yog tias PFC Circuit Court yog tsis dynamically hloov kho, voltop compressuab kuj tseem ua rau hom (DCM), ua rau muaj kev cuam tshuam ntawm cov nthwv dej tam sim no.
II, PFC Circuit Court thiab Tswj Cov Teeb Meem
1. Kev tiv thaiv tsis sib xws
PFC Inductance saturation lossis tsawg dua hauv inductance tuaj yeem ua rau muaj kev cuam tshuam ncaj qha rau cov nthwv dej tam sim no (thir), thiab txo qis zog. Piv txwv li, thaum inductance yog noo noo, cov feem ntawm Harrortive tau tshaj 20%.
2. Tswj lub tswv yim thiab parameter miscatch
Tsis tsim nyog hloov chaw lossis lub voj voog kev sib tw ntawm PWM kev hloov kho thiab tsis muaj zog ntawm kev siv hluav taws xob tsis muaj zog ntawm kev kho zem tam sim no. Yog hais tias lub dual kaw-voj tswj ntawm voltage Voltage thiab tam sim no lub voj tsis dynamically phim lub load hloov, nws yuav ntxiv exacerbate lub theem hloov.
3. Qhov kub siab ntxhov siab thiab cov khoom siv ntaus ntawv
Nyob rau hauv cov kev mob siab, lub peev xwm ntawm lub lim dej capital resistance (ESR) nce ntxiv, ua rau muaj kev phom sij ntawm PFC los ntawm kev ua phem; Kev laus ntawm lub cev muaj zog stator windings los yog hnav bearings kuj tseem tuaj yeem nce cov kev ua kom muaj zog poob.
III, Kev cuam tshuam Harmonic Thiab Lub Zog Hluav Taws Xob Coupling
1. Nonlinear Load Harmonic Puring
Cov kev sib haum xeeb tsim los ntawm cov khoom siv tsis xws li Rectifiers thiab cov hloov pauv ntawm cov hluav taws xob ua ke los ntawm cov hluav taws xob nrawm nrawm nrawm thiab ua rau muaj zog tsis txaus ntseeg ntsuas qhov tseem ceeb.
2. Peb Theem Load tsis txaus
Yog tias muaj thauj cov asymmetry hauv peb-theem system uas lub cev muaj zog nyob rau hauv cov kab nruab nrab tam sim no yuav ua rau muaj zog hauv zos thiab tshem tawm tag nrho cov hwj chim.
Iiii, Cov Lus Qhia Txhim Kho Kom Txhim Kho
1. Txhim kho lub cev muaj zog tsim: Siv cov khoom siv sib nqus siab sib nqus thiab cov qauv hluav taws xob kom txo cov zog winding;
2. Dynamic them nyiaj thev naus laus zis: sib txuas ua ke SVG (Staticic var generator) thiab APP (nquag tso tawm tsam Harmonics thiab theem offsets hauv lub sijhawm tiag tiag;
3. PFC Parameter Tuning: Kho lub chaw tswj hwm ntawm load tus nqi los xyuas kom ntseeg tau tag nrho cov haujlwm tag nrho;
4. Cua sov dissipation thiab kev tswj hwm txij nkawm: nquag saib lub peev xwm thiab inductance cov ntsiab lus tseem ceeb kom tsis txhob muaj kev laus ntawm cov kev laus nrawm nrawm nrawm nrawm nrawm nrawm nrawm nrawm nrawm.