I tēnei wiki ka tātarihia e mātou te whakamahinga o ngā pūnga kiriata hei utu mō ngā pūnga hikohiko i roto i ngā pūnga hononga-DC. Ka wehea tēnei tuhinga kia rua ngā wāhanga.

I te whanaketanga o te umanga pūngao hou, ka whakamahia whānuitia te hangarau au hurihuri, ā, he mea tino nui ngā pūnga DC-Link hei tetahi o ngā taputapu matua hei whiriwhiri. Ko ngā pūnga DC-Link i roto i ngā tātari DC e hiahia ana ki te kaha nui, te tukatuka au teitei me te ngaohiko teitei, me ētahi atu. Mā te whakataurite i ngā āhuatanga o ngā pūnga kiriata me ngā pūnga hikohiko me te tātari i ngā tono e pā ana, ka whakatau tēnei pepa i roto i ngā hoahoa ara iahiko e hiahia ana ki te ngaohiko whakahaere teitei, te au ripple teitei (Irms), ngā whakaritenga ngaohiko-nui, te hurihanga ngaohiko, te au urunga nui (dV/dt) me te roa o te ora. I te whanaketanga o te hangarau whakatakotoranga kohu whakarewa me te hangarau pūnga kiriata, ka noho ngā pūnga kiriata hei ia mō te kaihoahoa ki te whakakapi i ngā pūnga hikohiko i runga i te mahi me te utu a meake nei.

I te whakaurunga o ngā kaupapa here hou e pā ana ki te pūngao me te whanaketanga o te umanga pūngao hou i roto i ngā whenua maha, kua puta mai ngā whai wāhitanga hou i te whanaketanga o ngā umanga e pā ana ki tēnei mara. Ā, ko ngā pūngao, hei umanga hua e pā ana ki te awa, kua whiwhi hoki i ngā whai wāhitanga whanaketanga hou. I roto i ngā waka pūngao hou me ngā waka pūngao hou, ko ngā pūngao he wāhanga matua i roto i te whakahaere pūngao, te whakahaere hiko, te inverter hiko me ngā pūnaha tahuritanga DC-AC e whakatau ana i te roa o te ora o te kaitahuri. Heoi, i roto i te inverter, ka whakamahia te mana DC hei pūtake mana whakauru, e hono ana ki te inverter mā te pahi DC, e kiia nei ko te DC-Link, ko te tautoko DC rānei. Nā te mea ka whiwhi te inverter i te RMS teitei me ngā iahiko pupuhi tihi mai i te DC-Link, ka whakaputahia he ngaohiko pupuhi teitei ki runga i te DC-Link, ka uaua ki te inverter te tu atu. Nō reira, me mimiti te pūngao DC-Link i te iahiko pupuhi teitei mai i te DC-Link me te ārai i te piki haere o te ngaohiko pupuhi teitei o te inverter i roto i te awhe e whakaaetia ana; i tetahi atu taha, ka ārai hoki i ngā inverter kei pāngia e te nui rawa o te ngaohiko me te nui rawa o te ngaohiko i runga i te DC-Link.

Kei ngā Pikitia 1 me te 2 te hoahoa kauwhata o te whakamahinga o ngā pūnga DC-Link i roto i te pūngao hou (tae atu ki te whakaputa hiko hau me te whakaputa hiko photovoltaic) me ngā pūnaha taraiwa motuka waka pūngao hou.

E whakaatu ana te Pikitia 1 i te āhua o te ara iahiko whakawhiti hiko hau, ko C1 te DC-Link (e whakaurua whānuitia ana ki te kōwae), ko C2 te mimiti IGBT, ko C3 te tātari LC (taha kupenga), me te tātari DV/DT taha rotor C4. E whakaatu ana te Pikitia 2 i te hangarau ara iahiko whakawhiti hiko PV, ko C1 te tātari DC, ko C2 te tātari EMI, ko C4 te DC-Link, ko C6 te tātari LC (taha whatunga), ko C3 te tātari DC, ā, ko C5 te mimiti IPM/IGBT. E whakaatu ana te Pikitia 3 i te pūnaha taraiwa motuka matua i roto i te pūnaha waka hiko hou, ko C3 te DC-Link, ā, ko C4 te pūnga mimiti IGBT.

I roto i ngā tono pūngao hou kua whakahuatia ake nei, e hiahiatia ana ngā pūngao DC-Link, hei taputapu matua, mō te pono me te roa o te ora i roto i ngā pūnaha whakaputa hiko hau, ngā pūnaha whakaputa hiko photovoltaic me ngā pūnaha waka hiko hou, nō reira he mea tino nui te whiriwhiri i a rātou. Kei raro nei he whakataurite i ngā āhuatanga o ngā pūngao kiriata me ngā pūngao hikohiko me ō rātou tātaritanga i roto i te tono pūngao DC-Link.

1. Whakataurite āhuatanga

1.1 Ngā pūnga kiriata

Ka whakaurua tuatahitia te mātāpono o te hangarau whakarewa kiriata: ka mimitihia he paparanga whakarewa angiangi ki runga i te mata o te rauemi kiriata angiangi. Mēnā he hapa kei roto i te rauemi, ka taea e te paparanga te mimiti, ā, ka wehea te wāhi hapa hei tiaki, he āhuatanga e mōhiotia ana ko te whakaora-ā-ia-anō.

E whakaatu ana te Pikitia 4 i te kaupapa o te paninga whakarewa, kei reira te kiriata angiangi e tukatukahia ana (korona, i ētahi atu rānei) i mua i te mimiti kia piri ai ngā ngota whakarewa ki a ia. Ka mimiti te whakarewa mā te whakarewa i te pāmahana teitei i raro i te korehau (1400℃ ki te 1600℃ mō te konumohe me te 400℃ ki te 600℃ mō te konutea), ā, ka whakawhāitihia te mamaoa whakarewa ki runga i te mata o te kiriata ina tūtaki ki te kiriata whakamatao (te pāmahana whakamatao kiriata -25℃ ki te -35℃), ā, ka hangaia he paninga whakarewa. Nā te whanaketanga o te hangarau whakarewa kua whakapai ake i te kaha dielectric o te kiriata dielectric mō ia wae matotoru, ā, ko te hoahoa o te pūnga mō te tono pahū, tuku rānei o te hangarau maroke ka taea te eke ki te 500V/µm, ā, ko te hoahoa o te pūnga mō te tono tātari DC ka taea te eke ki te 250V/µm. Nō muri mai te pūnga DC-Link, ā, e ai ki te IEC61071 mō te tono hikohiko mana ka taea e te pūnga te tu atu i te ru ngaohiko kino ake, ā, ka taea te eke ki te 2 ngā wā o te ngaohiko kua whakatauria.

Nō reira, me whakaaro noa te kaiwhakamahi ki te ngaohiko whakahaere kua whakatauria e hiahiatia ana mō tā rātou hoahoa. He iti te ESR o ngā pūnga kiriata whakarewa, e āhei ai rātou ki te tu atu i ngā iahiko ripple nui ake; ko te ESL iti e tutuki ana i ngā whakaritenga hoahoa inductance iti o ngā inverters me te whakaiti i te pānga oscillation i ngā auau whakawhiti.

Ko te kounga o te kiriata dielectric, te kounga o te paninga whakarewa, te hoahoa pūnga me te tukanga hangahanga e whakatau ana i ngā āhuatanga whakaora-ake o ngā pūnga whakarewa. Ko te kiriata dielectric e whakamahia ana mō ngā pūnga DC-Link e hangaia ana he kiriata OPP te nuinga.

Ka whakaputaina ngā kōrero o te upoko 1.2 i roto i te tuhinga o te wiki e tū mai nei.