Thyristor converter: āhuatanga o te mahi me te whanaketanga opuaraa

Ko te ako o te āhuatanga o Semiconductors whakaaetia ki te waihanga tūemi hou e kua kaha whakamahia i roto i ngā ara iahiko hiko. Āta i reira nga whakaaro ake kaha e tukua whakawhiti iahiko o te kaha nui.

He tauira pai o tenei ko te pūtahuri thyristor. Mai i töna tïmatanga, ka anga ia ki te oaoa i te rongonui pai-tika ana i roto i kaihoahoa. Kei te whānui whakamahia tenei pūrere i roto i ngā ara iahiko: timata me te pākahiko peihana, mīhini fehokotakianga, hatete, inverters, rectifiers whakahaere , me ētahi atu e kore te mea he rārangi tino o ngā pūrere i roto i i whakamahia te pūtahuri thyristor te tenei.

Neke atu i te wa, i reira nga mea kaha i roto i i meinga e taea ki te whakahaere i te tere o motors hiko tipu whakawera ranei. Kua mātātoa whakamahia ratou i roto i te hanga, me te i roto i ētahi wā noa whakakapi te pūnaha tuku iho i te wa "generator-nekeneke" (GD).

iahiko mana ake tino nui haere tika o enei pūrere. pūtahuri thyristor mano ahei o te whakahaere i te nāianei excitation, ngā tika ki te ranei punga mekameka pūkaha. Heoi, he maha tikanga te pūnaha tuatahi o te mana pini-wāhanga (IFSB) pārorirori. taea hua tenei i roto i, mea, he "pukapuka-i runga i" o te inverter me te putanga o te wāhanga kaha o te pūnaha. Te turanga hanganga, rawa, rau nui ki te e minaminatia. Neke atu i te wa, i enei raruraru ko te mea o te mua. He ko pūrere hiko pono e te humarie te mana me te, ki te tika, ki te tiaki i tairongo pūtahuri kikī thyristor. Ko reira tika hoki ki te mōhio i te tōtika tiketike, maintainability pai me te rahi iti o tenei pūrere ki te faatura ki te pūnaha kē.

Otiia haunga pai ana te whakahaere, riro taua whakaaro etahi tōnounoú i roto i te pā ana ki te ara iahiko mana:

• Ko te ōwehenga o te kaha urupare me te kaha, ka whakamahi i kore ratou e huri mo te pai mo te taha whatunga supply whānui. Hei whakaora i te cos Φ whai ki te whakamahi i compensators o te mana urupare i runga i te pūtake o te pūnga iahiko.

• I roto i tona mahi, pūtahuri thyristor whakapokea rawa taumaha whatunga mana o te raweketia auau tiketike. E whakamahia motuhake RC-iahiko ki te aro i tēnei ngoikoretanga.

Ki te whakamahi o ngā pūrere i āta hangaia taea te huri i te tawhā pērā i te auau o te mains. Kei te whakamahia te reira i roto i te oumu arataki, ka hanga he whakarewa atu utanga hiko ranei. whakamana ana tēnei taumahi e te whakawhanakehia rawa hoki tenei whakaaro thyristor auau converter. Kua tino pai ake te tona hanga ngā i te wa o te hangarau whakarewa mahi i roto i te wāhi mahi.

Neke atu i te wa, whakaaro kē e whakahaere katoa i runga i te mau parau tumu i te tahi atu. kaupapa whakawhanakehia i runga i te pūtake o te mana-nui IGBT-transistors e kua whakamahia ki te whakahaere i te motors o te mana iti, me te reo. E āta whakakapi ratou pūnaha tawhitotia.