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Imigca yemagnethi eveliswa yikhoyili ayinakudlula yonke ikhoyili yesibini, ngoko ke i-inductance evelisa ukuvuza kwemagnethi ibizwa ngokuba yi-leakage inductance. Ibhekisela kwinxalenye ye-magnetic flux elahlekileyo ngexesha lokudibanisa i-transformer yokuqala kunye neyesibini.
Inkcazo ye-inductance yokuvuza, izizathu zokuvuza, ukulimala kokuvuza, izinto ezininzi ezichaphazela ukuvuza, iindlela eziphambili zokunciphisa inductance yokuvuza, umlinganiselo wokuvuza, umahluko phakathi kokuvuza kokuvuza kunye nokuvuza kwamagnetic flux.
Ukuvuza Inductance Definition
I-inductance yokuvuza yinxalenye ye-magnetic flux elahlekileyo ngexesha lokudibanisa kweprayimari kunye neyesibini yemoto. I-inductance yokuvuza ye-transformer kufuneka ibe imigca yamagnetic yamandla eyenziwa yi-coil ayikwazi ukudlula yonke i-coil yesibini, ngoko ke i-inductance evelisa ukuvuza kwamagnetic ibizwa ngokuba yi-leakage inductance.
Isizathu sokuvuza kwe-inductance
I-Leakage inductance iyenzeka ngenxa yokuba enye i-flux ephambili (yesibini) ayidityaniswanga neyesibini (eyiprayimari) ngokusebenzisa i-core, kodwa ibuyela kwindawo yokuqala (yesibini) ngokuvalwa komoya. I-conductivity yocingo malunga namaxesha angama-109 omoya, ngelixa ukunyanzeliswa kwezinto ezingundoqo ze-ferrite ezisetyenziswe kwi-transformers kuphela malunga ne-104 ngamaxesha omoya. Ke ngoko, xa i-magnetic flux idlula kwisekethe yamagnetic eyenziwe ngumbindi we-ferrite, inxalenye yayo iya kuvuza emoyeni, yenze isekethe yamagnetic evaliweyo emoyeni, okukhokelela ekuvuzeni kwamagnetic. Kwaye njengoko i-frequency yokusebenza isanda, ukunyanzeliswa kwezinto eziphambili ze-ferrite ezisetyenzisiweyo kuncipha. Ngoko ke, kwiifrikhwensi eziphezulu, le nto ibonakala ngakumbi.
Ingozi yokuvuza kwe-inductance
Ukuvuza kwe-inductance kuyisalathisi esibalulekileyo sokutshintsha i-transformers, enempembelelo enkulu kwiimpawu zokusebenza zokutshintsha umbane. Ubukho be-inductance yokuvuza buya kuvelisa amandla e-electromotive emva xa isixhobo sokutshintsha sicinyiwe, ekulula ukubangela ukuchithwa kwe-overvoltage yesixhobo sokutshintsha; ukuvuza inductance kusenokunxulunyaniswa I-Capacitance eyasasazwa kwisekethe kunye nokuhanjiswa kwe-capacitance ye-coil ye-coil ye-coil ye-oscillation yesekethe, eyenza i-oscillation yesekethe kwaye ikhuphe amandla e-electromagnetic ngaphandle, okubangela ukuphazamiseka kwe-electromagnetic.
Izinto ezininzi ezichaphazela ukuvuza kwe-inductance
Kwi-transformer esisigxina esele yenziwe, i-inductance yokuvuza ihambelana nezi zinto zilandelayo: K: i-coefficient yomoya, ehambelana ne-inductance yokuvuza. Kwii-windings ezilula eziphambili kunye nesekondari, thatha i-3. Ukuba i-winding yesibini kunye ne-primary winding inxeba ngokutshintshana Emva koko, thabatha i-0.85, yingakho indlela yokuguqula i-sandwich inconywa, ukuvuza kwe-inductance kwehla kakhulu, mhlawumbi ngaphantsi kwe-1/3 ye eyokuqala. I-Lmt: Ubude obuqhelekileyo bokujika ngakunye kwe-winding yonke kwi-skeleton Ngoko ke, abaqulunqi be-transformer bathanda ukukhetha i-core kunye ne-core ende. Okukhona i-winding ebanzi, incinci i-inductance yokuvuza. Kuyinzuzo kakhulu ukunciphisa i-inductance yokuvuza ngokulawula inani lokujika kwe-winding ukuya kubuncinci. Impembelelo ye-inductance ubudlelwane be-quadratic. Nx: inani lokujika kokujija kwe-W: ububanzi obujikelezayo I-Tins: ubukhulu be-insulation ejikelezayo bW: ubukhulu bazo zonke ii-windings ze-transformer egqityiweyo. Nangona kunjalo, indlela ye-sandwich winding izisa ingxaki yokuba i-parasitic capacitance iyanda, ukusebenza kakuhle kuyancipha. Ezi zakhono zibangelwa amandla ahlukeneyo eekhoyili ezikufutshane zomoya odibeneyo. Xa utshintsho lutshintshiwe, amandla agcinwe kuyo aya kukhutshwa ngendlela yeespikes.
Indlela ephambili yokunciphisa ukuvuza kwe-inductance
Iikhoyili ezidibeneyo 1. Iqela ngalinye le-windings kufuneka liboshwe ngokuqinileyo, kwaye kufuneka lihanjiswe ngokulinganayo. 2. Imigca ekhokelayo kufuneka ilungelelaniswe kakuhle, uzame ukwenza i-angle echanekileyo, kwaye isondele kudonga lwamathambo 3. Ukuba umaleko omnye awukwazi ukwenzakala ngokupheleleyo, enye ingqimba kufuneka ibe nenxeba elincinci. 4 Umaleko we-insulating kufuneka uncitshiswe ukuhlangabezana neemfuno zombane kwaye ukuba kukho indawo eninzi, qwalasela i-skeleton emide kwaye unciphise ubukhulu. Ukuba i-coil ye-multi-layer, imephu yokusabalalisa intsimi yamagnetic yeeleyile ezininzi zeekhoyili zingenziwa ngendlela efanayo. Ukunciphisa inductance yokuvuza, zombini eziziiprayimari kunye nezesekondari zinokuhlulwa. Ngokomzekelo, yahlulahlulwe yaba yiprayimari 1/3 → eyesibini 1/2 → eprayimari 1/3 → eyesibini 1/2 → eprayimari 1/3 okanye eprayimari 1/3 → eyesibini 2/3 → eprayimari 2/3 → eyesibini 1/ 3 njl., amandla ombane aphezulu ancitshiswa abe yi-1/9. Nangona kunjalo, iikhoyili zihlulwe kakhulu, inkqubo yokucima inzima, umlinganiselo wekhefu phakathi kweekhoyili zanda, into yokuzalisa iyancitshiswa, kwaye ukuvinjelwa phakathi kweprayimari kunye neyesibini kunzima. Kwimeko apho i-output kunye ne-input voltages iphantsi kakhulu, i-inductance yokuvuza kufuneka ibe yincinci kakhulu. Ngokomzekelo, i-transformer ye-drive inokulimala ngeengcingo ezimbini ngokuhambelanayo. Ngelo xesha, i-core magnetic enobubanzi obukhulu befestile kunye nobude busetyenziswa, njengohlobo lwembiza, uhlobo lwe-RM, kunye nentsimbi ye-PM. I-oksijeni imagnetic, ukwenzela ukuba amandla amagnetic kwifestile aphantsi kakhulu, kwaye i-inductance yokuvuza encinci inokufumaneka.
Umlinganiselo wokuvuza kwe-inductance
Indlela eqhelekileyo yokulinganisa i-inductance yokuvuza kukujikeleza okufutshane kwisibini (esiprayimari) ukujika, ukulinganisa i-inductance ye-primary (yesibini) i-winding, kunye nexabiso le-inductance elibangelwa yiprayimari (yesibini) ukuya kweyesibini (ephambili) yokuvuza. I-transformer efanelekileyo yokuvuza inductance akufanele idlule i-2 ~ 4% ye-magnetizing inductance yayo. Ngokulinganisa ukuvuza kwe-inductance ye-transformer, umgangatho we-transformer unokugwetywa. I-inductance yokuvuza inempembelelo enkulu kwisekethe kwii-frequencies eziphezulu. Xa ujija i-transformer, i-inductance yokuvuza kufuneka iyancipha kangangoko kunokwenzeka. Uninzi lwezakhiwo ze "sandwich" zeprayimari (yesibini) -yesibini (eprayimari) -eprayimari (yesibini) isetyenziselwa ukubetha i-transformer. ukunciphisa ukuvuza inductance.
Umahluko phakathi kokuvuza kokuvuza kunye nokuvuza kwemagnethi
I-inductance yokuvuza kukudibanisa phakathi kweprayimari kunye neyesibini xa kukho amajiko amabini okanye ngaphezulu, kwaye inxalenye ye-magnetic flux ayidityaniswanga ngokupheleleyo kweyesibini. Iyunithi ye-inductance yokuvuza yi-H, eyenziwa yi-flux evuzayo yamagnetic ukusuka kwiprayimari ukuya kweyesibini. Ukuvuza kweMagnetic flux kunokuba ngumjiko omnye okanye amajiko-jiko amaninzi, kwaye inxalenye yokuvuza kwemagnethi ayikho kwicala leyona ndawo iphambili yemagnethi. Iyunithi yokuvuza kwemagnethi yi-Wb. Ukuvuza kokuvuza kubangelwa kukuvuza kwemagnethi, kodwa ukuvuza kwemagnethi akuvelisi inductance yokuvuza.