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ʻAʻole hiki i nā laina kahua magnetic i hana ʻia e ka coil ke hele a pau ma ka lua o ka coil, no laila ua kapa ʻia ka inductance e hana ai i ka leakage magnetic field. E pili ana i ka ʻāpana o ka mea hoʻoheheʻe magnetic i nalowale i ka wā o ka hoʻohui ʻana o nā mea hoʻololi mua a me ka lua.
ʻO ka wehewehe ʻana o ka leakage inductance, nā kumu o ka leakage inductance, ka pōʻino o ka leakage inductance, kekahi mau mea e pili ana i ka leakage inductance, nā ala nui e hōʻemi ai i ka leakage inductance, ke ana o ka leakage inductance, ka ʻokoʻa ma waena o ka leakage inductance a me ka leakage flux magnetic.
Wehewehe Inductance Leakage
ʻO ka leakage inductance ka ʻāpana o ka flux magnetic i nalowale i ka wā o ka hoʻohui ʻana o ka mea mua a me ke kula kiʻekiʻe o ka kaʻa. ʻO ka leakage inductance o ka transformer ʻaʻole hiki i nā laina magnetic o ka ikaika i hana ʻia e ka coil ʻaʻole hiki i nā mea āpau ke hele i loko o ka coil lua, no laila ua kapa ʻia ka inductance e hoʻopuka ai i ka leakage magnetic.
Ke kumu o ka leakage inductance
Loaʻa ka leakage inductance no ka mea ʻaʻole i hoʻohui ʻia kekahi o ka flux mua (kekona) i ke kula kiʻekiʻe (primary) ma o ke kumu, akā hoʻi hou i ka mua (kekona) ma o ka pani ʻana o ka ea. ʻO ka conductivity o ka uea ma kahi o 109 mau manawa o ka ea, aʻo ka permeability o ka ferrite core material i hoʻohana ʻia i nā transformers ma kahi o 104 mau manawa wale nō o ka ea. No laila, i ka wā e hele ai ka mea hoʻoheheʻe magnetic i ke kaapuni magnetic i hoʻokumu ʻia e ka ferrite core, e kahe ana kekahi hapa o ia mea i ka lewa, e hana ana i kahi kaapuni magnetic paʻa i ka lewa, e hopena i ka leakage magnetic. A i ka piʻi ʻana o ke alapine hana, e emi ana ka permeability o ka mea ferrite core i hoʻohana ʻia. No laila, i nā alapine kiʻekiʻe, ʻoi aku ka nui o kēia ʻano.
ʻO ka pilikia o ka leakage inductance
ʻO ka leakage inductance kahi hōʻailona koʻikoʻi o ka hoʻololi ʻana i nā mea hoʻololi, he hopena nui ia i nā hōʻailona hana o ka hoʻololi ʻana i nā lako mana. ʻO ka loaʻa ʻana o ka leakage inductance e hoʻihoʻi i ka ikaika electromotive i ka wā e pio ai ka mea hoʻololi, kahi maʻalahi e hoʻopau i ka overvoltage o ka mea hoʻololi; Hiki ke hoʻopili ʻia ka leakage inductance i ka capacitance i hoʻokaʻawale ʻia i ke kaapuni a me ka capacitance puʻupuʻu o ka transformer coil e hana i kahi kaapuni oscillation, ka mea e hoʻoheheʻe ai ke kaapuni a hoʻomālamalama i ka ikehu electromagnetic i waho, e hoʻopilikia ai i ka electromagnetic interference.
Nui nā kumu e pili ana i ka leakage inductance
No ka mea hoʻololi paʻa i hana mua ʻia, pili ka leakage inductance i kēia mau mea: K: winding coefficient, i like me ka leakage inductance. No ka wili mua a me ka wili lua maʻalahi, e lawe i ka 3. Inā e ʻeha ka wili lua a me ka wili mua A laila, e lawe i ka 0.85, ʻo ia ke kumu e ʻōlelo ʻia ai ke ʻano o ka wili sanwī, hāʻule nui ka leakage inductance, ma lalo paha o ka 1/3 o. ke kumu. Lmt: ʻO ka lōʻihi maʻamau o kēlā me kēia huli o ka wili holoʻokoʻa ma ka iwi No laila, makemake nā mea hoʻolālā transformer e koho i kahi kumu me kahi kumu lōʻihi. ʻOi aku ka nui o ka wili, ʻoi aku ka liʻiliʻi o ka leakage inductance. He mea maikaʻi loa ia e hōʻemi i ka leakage inductance ma ka hoʻomalu ʻana i ka helu o nā huli o ka wili i ka liʻiliʻi. ʻO ka mana o ka inductance he pilina quadratic. Nx: ka heluna o na huli ana o ka wiliwili W: ka laula wiliwili Tins: ka manoanoa o ka wili wiliwili bW: ka manoanoa o na wiliwili a pau o ka transformer i pau. Eia nō naʻe, ʻo ke ʻano wili ʻana i ka sanwiti e lawe mai i ka pilikia e hoʻonui ai ka capacitance parasitic, hoʻemi ʻia ka pono. Hoʻokumu ʻia kēia mau capacitances e nā ʻokoʻa like ʻole o nā coils pili o ka wili hui. Ke hoʻololiʻia ka hoʻololi, e hoʻokuʻuʻia ka ikehu i mālamaʻia i loko ma keʻano o nā spike.
ʻO ke ala nui e hōʻemi i ka leakage inductance
ʻO nā wili i hoʻopili ʻia 1. Pono e ʻeha ʻia kēlā me kēia hui o nā wiliwili, a pono e puʻunaue like ʻia. 2. Pono e hoʻonohonoho pono ʻia nā laina alakaʻi, e hoʻāʻo e hana i kahi kihi ʻākau, a kokoke i ka paia o ka iwi 3. Inā ʻaʻole hiki ke ʻeha piha i kahi papa, pono e ʻeha liʻiliʻi kahi papa. 4 Pono e hoʻemi ʻia ka papa insulating no ka hoʻokō ʻana i nā koi voltage kūʻokoʻa a inā he nui ka nui, e noʻonoʻo i kahi iwi elongated a hoʻemi i ka mānoanoa. Inā ʻo ia ka nui-layer coil, hiki ke hana ʻia ka palapala ʻāina hoʻohele magnetic o nā ʻāpana ʻē aʻe o nā coils ma ke ʻano like. No ka hōʻemi ʻana i ka leakage inductance, hiki ke hoʻokaʻawale ʻia nā mea mua a me ka lua. No ka laʻana, ua māhele ʻia i ke kumu 1/3 → ke kula kiʻekiʻe 1/2 → ke kumu 1/3 → ke kula kiʻekiʻe 1/2 → ke kumu 1/3 a i ʻole ka 1/3 → ke kula kiʻekiʻe 2/3 → ke kumu 2/3 → ke kula kiʻekiʻe 1/ 3 a me nā mea ʻē aʻe, ua hoʻemi ʻia ka ikaika o ke kahua magnetic i 1/9. Eia nō naʻe, ua māhele nui ʻia nā coils, paʻakikī ke kaʻina hana wili, ua hoʻonui ʻia ka ratio waena ma waena o nā coils, hoʻemi ʻia ka mea hoʻopiha, a paʻakikī ka pāpā ʻana ma waena o ka mea mua a me ka lua. I ka hihia kahi i haʻahaʻa loa ka puka a me ka hoʻokomo ʻana, pono ka liʻiliʻi o ka leakage inductance. No ka laʻana, hiki ke hōʻeha ʻia ka mea hoʻololi hoʻokele me nā uea ʻelua i ka like. I ka manawa like, hoʻohana ʻia kahi kumu magnetic me kahi ākea ākea a me ke kiʻekiʻe, e like me ke ʻano ipu, ʻano RM, a me ka hao PM. ʻO ka Oxygen ka magnetic, no laila ua haʻahaʻa loa ka ikaika o ke kahua magnetic i ka puka makani, a hiki ke loaʻa kahi leakage inductance liʻiliʻi.
Ana o ka leakage inductance
ʻO ke ala maʻamau e ana i ka leakage inductance ʻo ia ke kaapuni pōkole i ka wili lua (kumu mua), e ana i ka inductance o ka wili mua (kekona), a ʻo ka waiwai inductance ka mea mua (kekona) a i ke kula kiʻekiʻe (primary) leakage inductance. ʻAʻole pono ka inductance leakage transformer maikaʻi ma mua o 2 ~ 4% o kāna inductance magnetizing ponoʻī. Ma ke ana ʻana i ka leakage inductance o ka transformer, hiki ke hoʻokolokolo ʻia ka maikaʻi o kahi transformer. ʻOi aku ka hopena o ka leakage inductance i ke kaapuni ma nā alapine kiʻekiʻe. I ka wili ʻana i ka transformer, pono e hoʻemi ʻia ka leakage inductance e like me ka hiki. Hoʻohana ʻia ka hapa nui o nā hale "sandwich" o ke kumu mua (kekona)-kekona (kumu)-kumu mua (kekona) e makani i ka transformer. e hoemi i ka leakage inductance.
ʻO ka ʻokoʻa ma waena o ka leakage inductance a me ka leakage flux magnetic
ʻO ka leakage inductance ka hoʻohui ʻana ma waena o ka mea mua a me ke kula kiʻekiʻe ke loaʻa ʻelua a ʻoi aku paha nā wiliwili, a ʻaʻole i hoʻopili piha ʻia kahi ʻāpana o ka flux magnetic i ka lua. ʻO ka ʻāpana o ka leakage inductance ʻo H, i hana ʻia e ka leakage magnetic flux mai ka mua a i ke kula lua. Hiki ke hoʻokuʻu ʻia ka leaka magnetic i hoʻokahi wili a i ʻole nā ​​wili he nui, a ʻo kahi ʻāpana o ka leaka hoʻoheheʻe magnetic ʻaʻole i ke kuhikuhi o ka flux magnetic nui. ʻO ka ʻāpana o ka leakage flux magnetic ʻo Wb. Hoʻokumu ʻia ka leakage inductance e ka leakage flux magnetic, akā ʻaʻole pono ka leakage flux leakage e hana i ka leakage inductance.