Arotake i te Āhuahanga me ngā Whakamahinga Whakahaere o ngā Whakawhiti Hikohiko Ngaohiko Waenga-Teitei III

3.3 Te Āhuatanga Taumata Maha kua Rawhia

Kei te whakaaturia te āhua maha-taumata o te Pūtake Kore-Whakapiri (NPC). Haunga te āhua NPC kua whakapirihia ki te diode, kei roto hoki i ngā āhua NPC te momo pūnga rere me te momo whakapiri ranu, me ētahi atu. Heoi, nā te nui o te rahinga pūnga, kei te whakamahi tonu ngā āhua NPC i ngā taputapu whakawhiti kore mahi, kaha rānei mō te whakapiri. Hei tauira, ko te āhua maha-taumata kua whakapirihia ki te diode, i roto i te āhua wāhanga whakatikatika toru-wāhanga, ko ia waewae wāhanga he transistors whakawhiti me ngā diode whakapiri, e honoa ana i te taha whakarara ki tētahi pahi DC ngaohiko-teitei kotahi. I whakaarohia e ngā tuhinga he āhua PET kotahi-wāhanga me tētahi wāhanga whakatikatika mā te whakamahi i tētahi ara iahiko kua whakapirihia ki te diode taumata-whā. Ka whaihia he pahi DC ngaohiko-teitei kotahi e ngā DAB whakauru-raupapa-putanga-whakarara, e whakaaturia ana. Ka taea te whakawhānui ake i tēnei āhua ki tētahi hanganga toru-wāhanga, ā, ka taea te whakarerekē i te maha o ngā taumata ngaohiko i runga i ngā taumata ngaohiko ātete taputapu me te taumata ngaohiko taha ngaohiko-teitei. Pērā i te āhua MMC, ka taea hoki te whakamahi i te āhua NPC i te wāhanga wehe, mā te hono i te pahi DC ngaohiko-tiketike ki te Whakawhiti Wehewehe, e whakaaturia ana. I whakamahia e ngā tuhinga he kaitahuri NPC kua herea ki te diode taumata-toru ki te taha ngaohiko-tiketike o te kaitahuri resonant LLC, me te manatoko i runga i te tauira 166kW/2kV~400V. I whakamahia e ngā tuhinga he ara iahiko NPC kua herea ki te diode taumata-toru ki te DAB wāhanga-toru, kia tutuki ai ngā āhuatanga ngaohiko me te iahiko DAB tino pai.

Ina whakamahia te āhua NPC hei wāhanga whakatikatika, kāore e hiahiatia he pahi DC motuhake, ka whakaiti i te maha o ngā whakawhiti āhua wehe. Hei tāpiri, i roto i ngā hanganga wāhanga-toru, kāore he ripiripiri ngaohiko auau-rua i runga i te pahi. Heoi, nā te mea he nui ngā taputapu whakapiri e hiahiatia ana e te āhua whakapiri, ka piki ake te maha o ngā taputapu whakapiri i te pikinga o te maha o ngā taumata, ka uaua te whakawhānui taumata, ā, ka uaua te whakatutuki i te auau. Mō te whakahaere, he rerekē ngā ia e rere ana ki roto i ia pūnga pahi o te kaitahuri NPC, ka hua ake he taurite kore o te ngaohiko pūnga. Mō ngā āhua NPC i runga ake i te toru ngā taumata, kāore he pūnaha taurite ngaohiko whai hua. Hei tāpiri, ko ngā wā mahi koretake o ngā pana i roto me waho o ngā ringa ka hua ake he whakamahana koretake, ka taea anake te whakatau mā te whakarerekē i te āhua porowhita whānui.

Nā te maha o ngā uauatanga i puta mai i te whakawhanuitanga taumata, ko te tikanga ka taea anake te whakamahi i ngā āhua NPC i ngā taumata ngaohiko reo/tiketike mā te hononga raupapa taputapu, mā te whakamahi rānei i ngā taputapu SiC ngaohiko-tiketike. Heoi, i ngā taumata ngaohiko iti iho, ki te whakaritea ki te āhua H-bridge kotahi, ko te NPC taumata-toru he haurua noa iho te ātete ngaohiko me te ahotea ngaohiko i runga i ia transistor whakawhiti, me te whakaputa i ngā taumata ngaohiko he nui ake, ka hua ake he iti ake ngā whakaritenga tātari putanga. He nui ngā painga tono hei wāhanga inverter i te taha ngaohiko-iti o te PET. Hei tauira, i whakamahia e ngā tuhinga he NPC here-diode taumata-toru hei wāhanga inverter o te PET hei taraiwa i te motuka toru-wāhanga, hei whakahaere i te manatoko whakamātautau me te whakatutuki i te mahi taraiwa motuka me te mahi haruru pai.