He kore-tukutahi-wāhanga-torumōtaHe momo motuka hiko whakapūmau e whakakahangia ana mā te hono tahi i tētahi iahiko AC toru-wāhanga 380V (he rerekētanga wāhanga o te 120 nekehanga). Nā te mea ka huri te papa aukume hurihuri o te rotor me te stator o tētahi motuka kore-tukutahi-wāhanga-toru i te ahunga kotahi me ngā tere rerekē, he tere paheke, nō reira ka kiia he motuka kore-tukutahi-wāhanga-toru.
He iti iho te tere o te rotor o tētahi motuka kore-tukutahi-toru i te tere o te papa aukume hurihuri. Ka whakaputahia e te takai rotor te kaha hiko me te iahiko nā te nekehanga whanaunga me te papa aukume, ā, ka taunekeneke ki te papa aukume hei whakaputa i te taipana hikohiko, ka tutuki ai te whakawhiti pūngao.
Ki te whakataurite ki te kore-whakawhitiwhiti kotahi-wāhangangā motuka, ā-wāhanga-toru kore-tukutahingā motukahe pai ake te mahi, ā, ka taea te penapena i ngā rauemi maha.
E ai ki ngā hanganga rotor rerekē, ka taea te wehewehe i ngā motuka kore-whakawhitiwhiti-wāhanga e toru ki te momo whare herehere me te momo takai
He māmā te hanganga o te motuka kore-tukutahi me te rotor whare herehere, he pono te whakahaere, he māmā te taumaha, he iti hoki te utu, ā, kua whānuitia te whakamahinga. Ko tōna ngoikoretanga matua ko te uaua ki te whakahaere tere.
Kei roto hoki i te rotor me te stator o tētahi motuka kore-whakawhitiwhiti-wāhanga-toru he takai-wāhanga-toru, ā, e honoa ana ki tētahi rheostat o waho mā roto i ngā mowhiti paheke, ngā paraihe. Mā te whakatikatika i te ātete o te rheostat ka taea te whakapai ake i te mahi tīmatanga o te motuka me te whakatikatika i te tere o te motuka.
Te kaupapa mahi o te motuka kore-whakawhitiwhiti-wāhanga-toru
Ina whakamahia te iahiko whakawhiti-wāhanga-toru ōrite ki te takai stator-wāhanga-toru, ka puta he papa aukume hurihuri e huri ana i te taha matau i te wāhi porowhita o roto o te stator me te rotor i te tere tukutahi n1.
I te mea ka huri te papa aukume hurihuri i te tere n1, ka tū te arataki rotor i te tīmatanga, nō reira ka tapahia e te arataki rotor te papa aukume hurihuri o te stator hei whakaputa i te kaha hiko whakaawe (ka whakatauhia te ahunga o te kaha hiko whakaawe e te ture ringa-matau).
Nā te porowhita poto o te ara iahiko hurihuri i ngā pito e rua e te mowhiti porowhita poto, i raro i te mahi a te kaha hiko whakaawe, ka whakaputa te ara iahiko hurihuri i te iahiko whakaawe e rite ana te ahunga ki te kaha hiko whakaawe. Ka pāngia te ara iahiko o te ara iahiko e te kaha hiko i roto i te papa aukume stator (ka whakatauhia te ahunga o te kaha mā te whakamahi i te ture ringa-maui). Ka whakaputa te kaha hiko i te taipana hiko i runga i te kakau hurihuri, ka akiaki i te hurihuri kia huri i te ahunga o te papa aukume hurihuri.
Mā te tātaritanga i runga ake nei, ka taea te whakatau ko te kaupapa mahi o te motuka hiko penei: ina whāngaihia ngā takai stator toru-wāhanga o te motuka (he rerekētanga koki hiko 120 nekehanga ia ia) ki te au hurihuri ōrite-wāhanga, ka puta he papa aukume hurihuri, ka tapahia te takai rotor ka whakaputa aukume whakaoho i roto i te takai rotor (he ara iahiko kati te takai rotor). Ka whakaputa te kaiārahi rotor e kawe ana i te au i raro i te mahi a te papa aukume hurihuri stator. Nō reira, ka hangaia he taipana aukume ki runga i te rakau motuka, ka akiaki i te motuka kia hurihuri i te ahunga kotahi me te papa aukume hurihuri.
Te hoahoa waea o te motuka kore-whakawhitiwhiti-toru-wāhanga
Te waea taketake o ngā motuka kore-tukutahi-toru-wāhanga:
Ka taea te wehewehe i ngā waea e ono mai i te takai o tētahi motuka kore-tukutahi-toru-wāhanga ki ngā tikanga hononga taketake e rua: te hononga delta delta me te hononga whetu.
E ono ngā waea = e toru ngā takai mōtini = e toru ngā pito pane + e toru ngā pito hiku, me te mita maha e ine ana i te hononga i waenga i te pane me ngā pito hiku o te takai kotahi, arā, U1-U2, V1-V2, W1-W2.
1. Tikanga hononga tapatoru delta mō ngā motuka kore-tukutahi-wāhanga-toru
Ko te tikanga hononga tapatoru delta he hono i ngā pane me ngā hiku o ngā takai e toru i te raupapatanga hei hanga i tētahi tapatoru, e whakaaturia ana i te pikitia:
2. Tikanga hononga whetu mō ngā motuka kore-tukutahi-wāhanga-toru
Ko te tikanga hononga whetu he hono i ngā pito hiku, i ngā pito pane rānei o ngā takai e toru, ā, ko ngā waea e toru e toe ana ka whakamahia hei hononga hiko. Ko te tikanga hononga e whakaaturia ana i te pikitia:
He Whakamārama mō te Kauwhata Waea o te Mōta Asynchronous Wāhanga Toru i roto i ngā Pikitia me te Kuputuhi
Pouaka hononga motuka toru-wāhanga
Ina honoa te motuka kore-tukutahi-toru-wāhanga, ko te tikanga hononga o te wahi hono i roto i te pouaka hononga koia tēnei:
Ina honoa te motuka kore-tukutahi-toru ki te kokonga, ko te tikanga hononga o te pouaka hononga koia tēnei:
E rua ngā tikanga hononga mō ngā motuka kore-tukutahi-toru: te hononga whetu me te hononga tapatoru.
Tikanga tapatoru
I roto i ngā koiri takai he rite te ngaohiko me te whānui o te waea, e toru ngā wā iti iho o ngā hurihanga mō ia wāhanga (1.732 ngā wā) me te toru ngā wā iti iho o te mana i te tikanga hononga tapatoru. Kua whakaritea te tikanga hononga o te motuka kua oti kia tu atu ki te ngaohiko o te 380V, ā, kāore i te pai mō te whakarerekētanga.
Ka taea anake te whakarerekē i te tikanga hononga ina rerekē te taumata ngaohiko toru-wāhanga mai i te 380V noa. Hei tauira, ina 220V te taumata ngaohiko toru-wāhanga, ka taea te whakamahi i te whakarerekē i te tikanga hononga whetu o te ngaohiko toru-wāhanga taketake 380V ki te tikanga hononga tapatoru; ina 660V te taumata ngaohiko toru-wāhanga, ka taea te whakarerekē i te tikanga hononga delta ngaohiko toru-wāhanga taketake 380V ki te tikanga hononga whetu, ā, ka noho tonu tōna mana. Ko te tikanga, ko ngā motuka mana-iti he hononga whetu, ko ngā motuka mana-tiketike he hononga delta.
I te ngaohiko whakatauranga, me whakamahi he motuka honohono-tara. Mena ka hurihia ki te motuka honohono-whetu, ka uru ki te mahi ngaohiko whakaiti, ka heke te mana o te motuka me te iahiko tīmatanga. Ina tīmatahia he motuka mana-teitei (tikanga hononga-tara), he tino teitei te iahiko. Hei whakaiti i te pānga o te iahiko tīmatanga ki te raina, ka whakamahia te tīmatanga whakaheke-heke. Ko tētahi tikanga ko te huri i te tikanga hononga-tara taketake ki te tikanga hononga-whetu mō te tīmatanga. I muri i te tīmatanga o te tikanga hononga-whetu, ka hurihia anō ki te tikanga hononga-tara mō te mahi.
Te hoahoa waea o te motuka kore-whakawhitiwhiti-toru-wāhanga
Te hoahoa ā-tinana o ngā rārangi whakawhiti whakamua me te whakamuri mō ngā motuka kore-tukutahi-toru-wāhanga:
Hei whakatutuki i te mana whakahaere whakamua me te whakamuri o te motuka, ka taea te whakarite i ngā wāhanga e rua o tana pūhiko tetahi ki tetahi (e kiia ana ko te whakawhitiwhiti). I te nuinga o te wā, ka noho tonu te wāhanga V, ā, ka whakaritea te wāhanga U me te wāhanga W tetahi ki tetahi. Hei whakarite kia taea te whakawhiti pono i te raupapa wāhanga o te motuka ina mahi ngā hononga e rua, me rite te waea i te tauranga o runga o te hononga, ā, me whakarite te wāhanga i te tauranga o raro o te hononga. Nā te whakawhiti raupapa wāhanga o ngā wāhanga e rua, me whakarite kia kore e taea te whakakā i ngā koiri KM e rua i te wā kotahi, ki te kore ka puta he hapa nui o te ara iahiko poto wāhanga ki te wāhanga. Nō reira, me whakamahi i te hononga honohono.
Mō ngā take haumaru, he maha ngā wā ka whakamahia he ara iahiko whakahaere raka-rua whakamua me te whakamuri me te raka pātene (mīhini) me te raka whakapā (hiko); Mā te whakamahi i te raka pātene, ahakoa ka pēhia ngā pātene whakamua me te whakamuri i te wā kotahi, kāore e taea te whakakā i ngā whakapā e rua e whakamahia ana mō te whakatikatika ā-wāhanga i te wā kotahi, ka karohia ai ngā ara iahiko poto ā-wāhanga ki te ā-wāhanga.
Hei tāpiritanga, nā te hononga o ngā hononga whakapā, mēnā kei te whakakāhia tētahi o ngā hononga, e kore tōna hononga roa e kati e kati. Mā tēnei, i roto i te whakamahinga o te hononga takirua ā-mīhini me te hiko, kāore e taea e te pūnaha tuku hiko o te motuka te whai ara iahiko poto ā-wāhanga ki te ā-wāhanga, ka tiakina pai te motuka me te karo i ngā aituā i puta mai i ngā ara iahiko poto ā-wāhanga ki te ā-wāhanga i te wā o te whakarerekētanga ā-wāhanga, ka taea ai te tahu i te hononga.
Wā tuku: Akuhata-07-2023
