dingbo@dieselgeneratortech.com
+86 134 8102 4441
Iulai 24, 2021
ʻO ka ʻokoʻa maʻamau ma waena o DC Generator a me syncrhonous generator hiki ke hoʻomaopopo ʻia mai ko lākou mau inoa, hāʻawi ʻo DC generator i Direct Current (DC) a hāʻawi ʻo Synchronous Generator i Alternating Current (AC).
He aha ka mea hana generator?
ʻO ka mīkini hana hoʻoheheʻe he mea hana electro-mechanical e hoʻololi i ka Mechanical Energy i Energy Electrical.
He aha ke kumu o mīkini hana hana ?
Hoʻokomo ʻia kahi EMF i loko o kahi conductor e ʻoki ana i ka flux magnetic.ʻO ke kānāwai hoʻokomo o Faraday.
E like me kēia loina, no ka hana ʻana i ka uila e pono ai:
He kahua mākia.
Hoʻokomo ʻia kahi alakaʻi i loko o ke kahua.
He mīkini e hana i ka wikiwiki pili ma waena o nā mea ʻelua.
He mīkini e unuhi ai i ka uila mai ka conductor.
ʻO kahi generator DC, e like me ka inoa e hoʻopuka ai, DC uila.I kēia hihia, paʻa ke kahua.ʻO ke kahua wili me nā ʻauamo kahi i ʻeha ai ka ʻauamo, a ʻo ka ʻauamo waho o ka mīkini, kahi i hui ʻia ai nā ʻauamo, ua kapa ʻia ʻo stator.Aia i loko o ka stator ka pūlima i hoʻokumu ʻia me ke kumu armature a me ka wili pūlima, i kapa ʻia ʻo ka rotor.
Ke hoʻohuli ʻia ka rotor e kekahi ʻano o waho, ʻoki ka coil armature i ke kahua magnetic i hana ʻia e ka stator.ʻO ka uila i hana ʻia pēlā e unuhi ʻia e ke aniani o nā apo slip a me ke keleawe a i ʻole ke kalapona.ʻAʻole DC ka uila i hana mua ʻia, ʻo ia ka ʻāpana AC hoʻokahi.
Ma ka hoʻohana ʻana i ka commutator ua hoʻololi ʻia kēia AC bidirectional i AC unidirectional.He unidirectional kēia akā ʻaʻole maʻemaʻe DC.
Ma muli o ke ʻano o ka hoʻonohonoho ʻia ʻana o ke kahua kaapuni i nā mea hana DC he 2 ʻano:
Hoʻokaʻawale ʻia: hoʻoikaika ʻia ke kahua e kahi kumu DC waho.
ʻOluʻolu iā ʻoe iho: hoʻohana ʻia kahi ʻāpana o ka EMF i hana ʻia e hoʻoikaika i ke kaapuni kahua.Hoʻohana ʻia ke koena magnetism e hana i ka uila mua.Aia he 3 mau ʻano o nā mea hoʻoheheʻe DC hoihoi:
ʻO Shunt Generator- Aia ke kahua i ka shunt me ka armature.
Generator Series- Aia ke kahua me ka armature.
Compound Generator- He hui ia o nā pūʻulu ʻelua a me nā mīkini shunt.
ʻO kahi mea hoʻoheheʻe hui pū- e hana ma ka loina like akā hoʻopuka i ka 3-phase AC.Aia kekahi ʻokoʻa koʻikoʻi, i ka hihia o ka DC generator ua paʻa ke kahua, akā i ke ʻano o ka synchronous generator field ke rotating a paʻa ka armature.ʻO ka stator ka hale i 3-phase wili.ʻO nā volta i hana ʻia i kēia mau wiliwili he 120 degere ka ʻokoʻa mai kekahi i kekahi i ka pae.ʻO nā mīkini hana hoʻoheheʻe ʻia he mau mīkini ikaika ikaika.
ʻO ka pōmaikaʻi o ka armature paʻa, ʻo ia ka mea e hoʻopau ai i nā apo slip a me nā pulupulu mai ka hiʻohiʻona, hiki ke unuhi pololei ʻia ka uila mai nā pahu armature e hoʻomaikaʻi i ke kaʻina hana ma ka hōʻemi ʻana i ka nalowale pili.Hoʻoulu ʻia ke kahua kaapuni e kahi kaapuni exciter brushless i kau ʻia ma ke kumu rotor.
He mea hoʻoheheʻe AC liʻiliʻi ka mea i kau ʻia ma luna o ke kumu rotor a paʻa ke kahua.Hāʻawi ʻia ke kahua o ka exciter e paʻa ana me waho dc.Me ka hoʻololi ʻana o ka rotor, 3-phase ac i hoʻololi ʻia i dc me ka hoʻohana ʻana i ka rectifier 3-phase i kau ʻia ma ka rotor.Hoʻohana ʻia kēia DC e hoʻoikaika i ke kahua nui.
Hoʻololi ʻia ka rotor me ka hoʻohana ʻana i ka mover prime i hiki ke ʻano o nā ʻano he nui, no ka laʻana: turbine mahu, turbine wai, turbine makani, ʻenekini a me nā mea ʻē aʻe.
No ka mea pahu hoʻoheheʻe diesel , ua lako ka hapa nui me ka mea hana AC.Manaʻo mākou he mea kōkua ka ʻike ma luna iā ʻoe e aʻo e pili ana i nā generator.
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