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Iwo magineti emunda mitsetse inogadzirwa necoil haigone kupfuura yese yechipiri coil, saka inductance inoburitsa iyo leakage yemagineti inonzi leakage inductance. Inoreva chikamu cheiyo magineti flux yakarasika panguva yekubatanidza maitiro ekutanga uye echipiri ekushandura.
Tsanangudzo yekuvuza inductance, zvikonzero zvekuvuza inductance, kukuvadzwa kwekuvuza inductance, akati wandei anokanganisa leakage inductance, nzira huru dzekudzikisa leakage inductance, kuyerwa kwekudonha inductance, mutsauko pakati pekudonha inductance uye magineti flux leakage.
Leakage Inductance Tsanangudzo
Iyo leakage inductance chikamu cheiyo magineti flux inorasika panguva yekubatanidza maitiro ekutanga uye echipiri emota. Iyo leakage inductance yetransformer inofanirwa kunge iri iyo magineti mitsara yesimba inogadzirwa necoil haigone kupfuura yese yechipiri coil, saka inductance inoburitsa iyo magineti leakage inonzi leakage inductance.
Chikonzero chekudonha inductance
Leakage inductance inoitika nekuti imwe yekutanga (yechipiri) flux haina kubatanidzwa kune yechipiri (yekutanga) kuburikidza nepakati, asi inodzokera kune yekutanga (yechipiri) kuburikidza nekuvharwa kwemhepo. Iyo conductivity yewaya inokwana ka109 iyo yemhepo, nepo kupera kweiyo ferrite core material inoshandiswa mumatransformer inongoita ka104 nguva yemhepo. Naizvozvo, kana iyo magineti ichipfuura nepakati remagineti inoumbwa neiyo ferrite core, chikamu chayo chinodonhedza mumhepo, ichigadzira yakavharwa magineti mumhepo, zvichikonzera kubuda kwemagineti. Uye sezvo iyo frequency yekushanda ichiwedzera, iyo permeability yeiyo ferrite core material inoshandiswa inodzikira. Nokudaro, pamatunhu akakwirira, chiitiko ichi chinonyanya kutaurwa.
Ngozi yekudonha inductance
Leakage inductance chiratidzo chakakosha chekuchinja kushandura, iyo ine simba guru pane zviratidzo zvekushanda zvekushandura magetsi. Kuvepo kwekudonhedza inductance kunoburitsa kumashure emagetsi emagetsi kana switching mudziyo yakadzimwa, zviri nyore kukonzera overvoltage kuparara kweiyo switching mudziyo; leakage inductance inogona zvakare kuenderana neiyo yakagovaniswa capacitance mudunhu uye yakagovaniswa capacitance ye transformer coil inoumba oscillation wedunhu, iyo inoita kuti dunhu riite oscillate uye kupenya emagetsi emagetsi kunze, zvichikonzera kukanganiswa kwemagetsi.
Zvinhu zvakawanda zvinokanganisa leakage inductance
Kune yakagadziriswa transformer yakatoitwa, iyo leakage inductance inoenderana nezvinhu zvinotevera: K: mhepo inoputika, iyo inofananidzwa neiyo leakage inductance. Nekureruka kwepuraimari uye yechipiri windings, tora 3. Kana iyo yechipiri mhepo uye yekutanga mhepo inoputika yakakuvadzwa zvakare, tora 0.85, ndosaka sandwich inotenderedza nzira inokurudzirwa, iyo leakage inductance inodonha zvakanyanya, pamwe isingasviki 1/3 ye yepakutanga. Lmt: Hurefu hwepakati hwekutendeuka kwega kwega kwese kupeta paskeleton Naizvozvo, vagadziri ve transformer vanofarira kusarudza core ine refu core. Iyo yakafararira inomonereka, idiki iyo leakage inductance. Izvo zvinobatsira kwazvo kudzikisa iyo leakage inductance nekudzora huwandu hwekutendeuka kwemhepo kune hushoma. Kufurira kweiyo inductance hukama hwequadratic. Nx: nhamba yekutendeuka kwemhepo inoputika W: hupamhi hwemhepo inoputika Matini: hupamhi hwekudzivirira kwemhepo bW: hupamhi hwemamhepo ose emushanduri akapedzwa. Nekudaro, iyo sandwich winding nzira inounza dambudziko iro parasitic capacitance inowedzera, iko kushanda kwakaderedzwa. Aya macapacitances anokonzerwa nekukwanisa kwakasiyana kwemakoiri ari padyo ekubatana kwakabatana. Kana shanduko ichishandurwa, simba rakachengetwa mairi richasunungurwa nenzira ye spikes.
Iyo huru nzira yekudzikisa leakage inductance
Iyo inopindirana coils 1. Boka rimwe nerimwe remhepo rinoputika rinofanira kukuvadzwa zvakasimba, uye rinofanira kugoverwa zvakaenzana. 2. Mitsara inotungamira inofanira kunge yakanyatsorongeka, edza kuumba kona yakarurama, uye pedyo nemadziro emakumbo emakumbo 3. Kana imwe mutsara isingakwanisi kukuvadzwa zvakakwana, imwe nhanho inofanira kunge yakakuvadzwa zvishoma. 4 Iyo insulating layer inofanirwa kudzikiswa kuti isangane nezvinodiwa nevoltage uye kana paine nzvimbo yakawanda, funga nezve elongated skeleton uye kuderedza ukobvu. Kana iri yakawanda-layer coil, iyo magineti yekugovera mepu yemamwe maturu emakoiri anogona kugadzirwa nenzira imwecheteyo. Kuti uderedze leakage inductance, zvese zvekutanga uye zvechipiri zvinogona kupatsanurwa. Somuenzaniso, yakakamurwa kuva yepuraimari 1/3 → yechipiri 1/2 → yepuraimari 1/3 → yechipiri 1/2 → yepuraimari 1/3 kana yepuraimari 1/3 → yechipiri 2/3 → yepuraimari 2/3 → yechipiri 1/ 3 zvichingodaro, iyo yakanyanya magineti simba inoderedzwa kusvika 1/9. Zvisinei, mapeji akapatsanurwa zvakanyanya, maitiro ekuputika akaoma, chiyero chepakati pakati pemakoiri chinowedzera, chinhu chekuzadza chinoderedzwa, uye kurambidzwa pakati pekutanga uye yechipiri kwakaoma. Munyaya iyo inobuda uye yekupinza voltages yakadzikira, iyo leakage inductance inofanirwa kuve idiki kwazvo. Semuenzaniso, dhiraivha inoshandura inogona kukuvadzwa newaya mbiri dzakafanana. Panguva imwecheteyo, magineti musimboti ane hwindo rakakura uye kureba rinoshandiswa, senge mhando yepoto, mhando yeRM, uye PM iron. Okisijeni ine magineti, kuitira kuti simba remagineti muhwindo rakaderera kwazvo, uye diki inductance yekudonha inogona kuwanikwa.
Chiyero chekuvuza inductance
Iyo yakajairwa nzira yekuyera leakage inductance ndeyekupfupika mhepo yechipiri (yekutanga) mhepo, kuyera inductance yeyepuraimari (yechipiri) mhepo, uye inokonzeresa inductance kukosha ndiyo yekutanga (yechipiri) kune yechipiri (yeprimary) leakage inductance. Iyo yakanaka transformer leakage inductance haifanire kudarika 2 ~ 4% yayo yega magnetizing inductance. Nekuyera iyo leakage inductance ye transformer, kunaka kweshanduko kunogona kutongwa. Iyo leakage inductance ine hukuru hukuru padunhu pane yakakwira mafrequency. Paunenge uchitenderedza transformer, iyo leakage inductance inofanira kuderedzwa zvakanyanya sezvinobvira. Zvizhinji zve "sandwich" zvimiro zveprimary (secondary) -secondary (primary) -primary (secondary) inoshandiswa mhepo inoshandura. kuderedza leakage inductance.
Musiyano uripo pakati pekudonha inductance uye magineti flux leakage
Iyo leakage inductance ndiko kubatanidza pakati pepuraimari neyechipiri kana paine maviri kana anopfuura mamhepo, uye chikamu cheiyo magineti flux haina kunyatsobatanidzwa kune yechipiri. Iyo unit ye ​​leakage inductance iH, iyo inogadzirwa nekudonha kwemagineti flux kubva kune yekutanga kuenda kune yechipiri. Magnetic flux leakage inogona kuve imwe inomonereka kana akawanda mhepo, uye chikamu cheiyo magineti flux kuvuza haisi munzira yeiyo huru magineti flux. Iyo unit yemagnetic flux leakage ndeye Wb. Leakage inductance inokonzerwa nemagnetic flux leakage, asi magineti flux leakage hairevi kuburitsa leakage inductance.