96kVA High-Voltage Medium-Frequency Transformer Multi-Dimensional Optimization: Txhim Kho Kev Ua Haujlwm Zoo, Kev Tswj Xyuas Thermal, thiab Electromagnetic Compatibility

Cov transformers nruab nrab-zaus (MFTs) yog cov khoom tseem ceeb hauv cov khoom siv hluav taws xob niaj hnub no, ua rau muaj kev hloov pauv hluav taws xob me me, ua haujlwm tau zoo thoob plaws cov ntawv thov xws li kev sib koom ua ke ntawm lub zog rov ua dua tshiab, cua sov hauv kev lag luam, thiab cov tshuab traction. Rau cov xwm txheej muaj zog siab uas xav tau 96kVA lub peev xwm, kev ua kom zoo dua cov transformers no hla kev ua haujlwm tau zoo, kev tswj hwm thermal, thiab kev sib raug zoo electromagnetic (EMC) yog qhov tseem ceeb kom ua tau raws li kev ua tau zoo thiab kev ntseeg tau. Tsab xov xwm no tshawb nrhiav txoj hauv kev ua kom zoo dua ntau qhov ntev rau 96kVA high-voltage MFTs, kev sib xyaw ua ke ntawm cov khoom siv tshiab, kev ua qauv siab heev, thiab kev tsim qauv zoo nkauj.

1. Kev Xaiv Cov Khoom Siv Tseem Ceeb: Kev Sib Npaug ntawm Kev Poob thiab Kev Teb Zaus

Ntawm cov zaus nruab nrab (feem ntau 1–20 kHz), kev poob tseem ceebthiab kev poob qisua rau muaj kev cov nyom loj. Cov hlau silicon ib txwm muaj (SiFe) alloys qhia txog kev poob siab thiab eddy-current ntawm cov zaus siab, txo qis kev ua haujlwm. Lwm txoj hauv kev zoo li nanocrystallinethiab cov hlau tsis muaj zogmuab kev ua tau zoo dua:

• Nanocrystalline cores (piv txwv li, Vitroperm) ua ke cov dej ntws ceev ceev (≥1.2 T) nrog cov kev poob qis tshwj xeeb, ua tiav txog li 6% kev ua haujlwm zoohauv 50 kW–5 kHz prototypes.
• Cov hlau amorphous txo cov kev poob ntawm cov tub ntxhais los ntawm ≈60% piv rau SiFe, qhov tseem ceeb rau kev txo qis kev poob tsis muaj kev thauj khoom.

Rau cov windings, Hlau txuasua tau zoo dua cov ntawv ci tooj liab hauv cov xwm txheej siab los ntawm kev txo cov teebmeem ntawm daim tawv nqaij thiab qhov sib ze. Cov kev tshawb fawb qhia tau tias cov qauv hlau Litz txo qhov tsis kam AC los ntawm ≈30%, txo qhov kev poob ntawm cov winding tag nrho thiab ua rau muaj zog ntau dua.

2. Kev Tswj Xyuas Kub: Tiv Thaiv Kev Kub Dhau Hauv Zos

Kev poob ntau ntxiv ntawm cov zaus nruab nrab ua rau muaj kev ntxhov siab thermal. Kev sim ntau yam physics (piv txwv li, ANSYS Maxwell + Icepak) kos duab kev faib tawm ntawm kev poob thiab txheeb xyuas cov hotspots. Cov tswv yim txhim kho suav nrog:

• Cov tshuab cua txias siab heevCov qauv tsim uas muaj roj ntau txoj hauv kev txo qhov kub ntawm qhov kub thiab txias mus txog rau 18%piv rau passive txias.
• Cov khoom siv thermally conductive encapsulantsCov ntaub ntawv xws li epoxy resins ua rau cov cua sov tawm zoo dua thaum tswj kev rwb thaiv tsev.
• Kev hloov kho cov qauvKev kho qhov sib piv ntawm qhov siab thiab qhov dav ntawm lub core ua rau qhov sib piv ntawm thaj chaw thiab qhov ntim zoo dua, txhim kho kev sib hloov pauv ntuj.

3. EMC thiab Kev Tswj Xyuas Kev Xaim: Kev Tiv Thaiv thiab Kev Tsim Kho Winding

Kev ua haujlwm siab ua rau muaj kev cuam tshuam hluav taws xob (EMI) ntau ntxiv los ntawm cov dej xau. Txhawm rau txhim kho EMC:

• Kev tiv thaiv hluav taws xobFerrite lossis nanocrystalline shields tiv thaiv cov teb stray zaus siab.
• Cov kev teeb tsa windingCov xov hlau sib txuas lossis sib cais txo qhov xau hluav taws xob los ntawm ≈25%, txo qis EMI tiam.
• Kev tsim cov rwb thaiv tsev kom meejKev sib npaug ntawm cov rwb thaiv tsev tuab (rau kev rho tawm hluav taws xob siab) nrog rau qhov me me txwv cov peev xwm parasitic, txo cov resonant oscillations.

4. Kev lees paub: Kev ua qauv thiab kev tsim qauv

Kev tshuaj xyuas cov khoom siv finite (FEA) thiab kev siv tshuab xam zauv (CFD) los xyuas kom meej cov qauv tsim ua ntej tsim qauv. Piv txwv li:

• Tau txais ib qho qauv MFT 4.1 MVA/1 kHz > 99.2% kev ua haujlwm zoosiv cov amorphous cores thiab cov optimized Litz wire windings.
• Cov algorithms raws li gradient (piv txwv li, txoj kev nqes mus rau qhov ntxhab tshaj plaws) ua kom yooj yim rau kev ua kom zoo dua ntawm ntau lub hom phiaj, tib lub sijhawm txhim kho kev ua haujlwm zoo, lub zog ceev, thiab kev ua haujlwm thermal.

5. Cov Ntawv Thov thiab Cov Lus Qhia Txog Tus Nqi

Cov 96kVA MFTs zoo tshaj plaws muab cov txiaj ntsig pom tseeb:

• Lub zog rov ua dua tshiabQhov loj me dua (≈43% txo qhov hnyav piv rau cov transformers kab-zaus) thiab kev ua haujlwm zoo dua haum rau cov hloov pauv hnub ci/cua.
• Cov txheej txheem kev lag luam: Kev ua kom muaj zog thermal zoo dua ua kom muaj kev ntseeg siab hauv kev ua haujlwm tas mus li xws li kev yaj induction.
• Kev tsim kho vaj tse thiab kev siv hluav taws xobKev ua raws li cov qauv EMC (piv txwv li, IEC 61800-3) txo qhov kev cuam tshuam ntawm lub kaw lus.

Xaus lus

Kev ua kom zoo dua ntawm 96kVA high-voltage MFTs ntau yam - los ntawm kev tshawb fawb txog cov khoom siv, kev tsim qauv thermal, thiab kev tsim kho EMC - ua rau muaj kev hloov pauv zoo hauv kev ua haujlwm zoo, lub zog ceev, thiab kev ntseeg siab. Los ntawm kev siv cov cuab yeej ua qauv siab heev thiab kev lees paub, cov chaw tsim khoom tuaj yeem xa cov kev daws teeb meem tshwj xeeb rau cov khoom siv hluav taws xob tiam tom ntej.

Tshawb nrhiav peb cov kev daws teeb meem transformer uas siv thev naus laus zis siab heev—tsim los rau kev ua haujlwm tau zoo thiab ruaj khov. Tiv tauj peb kom kho 96kVA MFT rau koj daim ntawv thov.