I roto i te whanaketanga o tētahi rihi hiko 6.6 kW (OBC), ehara i te mea ko ngā wāhanga aukume (ngā inductors, ngā transformers) he mea nui ki te rōrahi me te taumaha anake, engari he mea nui anō hoki ki te whakatau i te whai huatanga me te mahi EMI. I runga i ngā au hou o te ahumahi me ngā wheako mahi, kua whakarāpopototia e mātou ngā tohutohu mahi e whai ake nei mō te whiriwhiri i ngā wāhanga aukume OBC, hei āwhina i a koe ki te whakatutuki i te taurite pai i waenga i te "mahi, te rahi, me te utu."
TOHUTOHU1.Kōwhiringa Inductor PFC — "Pai ake te Nui i te Iti," Te Arotahi ki te Pīhanga DC
I roto i tētahi hoahoa mana-teitei o te 6.6 kW, ko te raruraru tino noa me te inductor PFC ehara i te "kore ine i te ine" engari ko te "kūkū i raro i te iahiko teitei."
* Ngā Whakamaharatanga Whaihua: "kia aro ki te kōpiko, kaua ki te uara ingoa."
* He maha ngā inductors e whakaatu ana i te inductance teitei i te pāmahana rūma (25°C), engari ina tukuna ki te iahiko rītaha DC o te 30A-50A, ka heke pea tō rātou inductance neke atu i te 50%.
*I te wā e whiriwhiri ana i tētahi wāhanga, me tono tonu te kōpiko LI (inductance-current) mai i te kaiwhakarato. Me whakarite kia noho tonu te inductance ki runga ake i te 80% o te uara e hiahiatia ana i tō au teitei (hei tauira, 55A).
* Kōwhiringa Rauemi:
Te Whai i te Tino Pai: Kōwhiria ngā matua paura aukume Sendust, te paura rino-nickel-molybdenum rānei, e whakaatu ana i te ātete kaha ki te mākū, te pikinga pāmahana iti, engari he nui ake te utu.
Te whai i te whai huatanga utu: Kōwhiria te ferrite me te whakahaere tika i te āputa hau mō te utu iti, engari kia tūpato ki ngā ngaronga o te au hurihuri (ngā pānga taha) i te āputa hau. E taunakihia ana kia whakamahia te takai maha-aho, te waea Litz rānei hei whakaiti i ngā ngaronga.
Tohutohu 2:Whakawhiti LLC – Te whakamahi i te "Leakage Inductance" hei utu mō te "Resonant Inductance"
Koinei te tikanga whakaiti utu tino rongonui mō te 6.6kW OBC (ina koa mō te kaitahuri oro CLLC o muri).
*Te mahi whaihua:
*Kaua e hoko motuhake i tētahi inductor resonant, engari me whakanui ake i te inductor turuturu o te whakawhiti hiko mā te whakarite i te hanganga o te whakawhiti hiko (pērā i te whakarite i te tawhiti i waenga i ngā takai tuatahi me te tuarua, mā te whakamahi i ngā angaanga wehewehe).
*Tohutohu: Whakamahia tēnei ine turuturu hei ine whakaoho (L_r) o te kōhao whakaoho.
*Whiwhinga:
*Rōrahi: Kua whakaitihia te maha o ngā matua aukume motuhake, ā, ka taea te whakaiti i te rōrahi mā te neke atu i te 20%.
*Utu: Mā te tango i te matua aukume kotahi me te takai ka whakaiti i te utu BOM.
*Te marara wera: He pai ake ngā āhuatanga marara wera o ngā whakawhiti hiko (pēnei i te whakakī me te pā atu ki ngā pereti whakamatao-wai), e māmā ake ai te marara wera i ngā ine hiko iti motuhake.
Tohutohu 3:Hoahoa Wera – He mea nui ake te "Ātete Wera" i te "Pikinga o te Pāmahana"
I te wā whakamātautau tauira, tera pea ka kitea e koe he tino wera te mata o te inductor (>100 ℃). He mea noa tēnei?
*Ngā pūkenga whakatau:
*Kaua e ine noa i te pāmahana o te mata, engari tirohia te pāmahana o roto.
*Tātai tātai: T {wāhi wera}=T { mata}+(R {th} whakareatia ki te P { ngaronga})
*Tohutohu: I te wā e whiriwhiri ana, pātai atu ki te kaiwhakarato mō tā rātou tauwehenga ātete wera (R_ {th}). Mena kāore e taea te tiki, ka taea te whakahaere i te kawenga katoa tae noa ki te taurite wera, ā, ka matawaihia ki te pūrere whakaahua wera.
*Ngā mehua mō te whakamarara wera:
*Hiri: Ko te whakamahi i te piripiri kawe wera hei whakawhiti wera ki te anga o waho (pereti raro) te tikanga tino rongonui mō te OBC.
*Tahora: Whakatakotoria te inductor PFC me te whakaputa wera nui rawa atu ki te pereti wai-whakamatao, ki te paipa whakamarara wera rānei, kia tata rawa atu ki te pereti wai-whakamatao, ki te paipa whakamarara wera rānei.
Tohutohu 4:Te aro atu ki ngā wero auau teitei – Kia aro ki te "pānga kiri" me te tukanga takai
I te pikinga ake o te auau whakawhiti OBC (ka eke te PFC ki te 40kHz-100kHz, teitei ake te LLC), he maha ake te whakamate o ngā mate AC (I ^ 2R_ {ac}) i ngā mate DC.
*Ngā pūkenga whiriwhiri waea takai:
*Auhiko teitei auau iti (PFC): E taunakihia ana kia whakamahia he waea parahi papatahi mō te takai poutū. He teitei te tauwehenga whakakī o ngā rārangi papatahi, ā, he pai ake te pānga kiri i te roopu auau waenga (tekau kHz) i tērā o ngā rārangi porowhita.
*Auau teitei (whakawhitiwhiti/whakapūngao ātete): Me whakamahi te waea Litz. He mea whatu te waea Leeds mai i ngā miro maha o te waea tino angiangi kua whakamahanatia, ka taea te whakanui ake i te horahanga mata o te kaiārahi me te ātete i te "pānga kiri" o ngā ia au teitei.
*He aratohu mō te karo i ngā mahanga: Mēnā ka whakamahia he waea parahi matotoru kotahi hei takai i te ine hiko auau-tiketike hei penapena wā, ka nui ake pea te pikinga pāmahana ine i te 30 ℃ i te uara kua tatauhia, ka arahi ki te koroheketanga o te paparanga whakamarumaru, ki te ara iahiko poto rānei.
Nau mai ki te whakapuaki mai i ō whakaaro ki a mātou!
Wā tuku: Hakihea-18-2025