Momo Raru: Ngā Āhuatanga Auau-Teitei
Q: He aha ngā āhuatanga auau-tiketike oNgā pūnga hiko DC-Linkhe pakari ake i roto i ngā papaaho taraiwa hiko 800V?
A: I runga i te tūāpapa 800V, he teitei ake te ngaohiko pahi inverter, ā, ko te auau whakawhiti o ngā taputapu SiC ka piki ake ki te awhe 20~100kHz. Ka nui ake te dv/dt me te au ripple i te whakawhiti auau-tiketike, ka nui ake te pikinga o ngā whakaritenga mō te ESR, ESL, me ngā āhuatanga resonant o te capacitor. Ki te kore te urupare a te capacitor i te wā tika, ka piki ake te pikinga o ngā nekehanga ngaohiko pahi, ā, ka puta ake hoki ngā ngaru ngaohiko.
Momo Raru: Whakataurite Mahi
P: I roto i tētahi tūāpapa 800V, me pēhea te ine i ngā painga motuhake o ngā pūnga kiriata DC-Link i runga i ngā pūnga hiko konumohe tuku iho i roto i te urupare auau-teitei? Ina koa, he aha ngā raraunga e tautoko ana i tēnei painga ki te pehi i ngā ngaru hiko?
A: He iti ake te ātete raupapa ōrite (ESR) o ngā pūnga kiriata i ngā auau teitei, pērā i te 2.5mΩ i te 50kHz, ko ngā pūnga hiko konumohe ia he ESR kei waenganui i ngā tekau ki ngā rau mΩ. Ko te iti o te ESR ka hua ake he iti ake te ngaronga wera me te kaha ake ki te tu atu ki te dV/dt, ka pehi pai i te ngaohiko nui rawa atu i puta mai i te tere whakawhiti tere rawa o ngā pūnga SiC. E whakaatu ana ngā raraunga ine tūturu i raro i ngā āhuatanga 800V/300A, ka taea e ngā pūnga kiriata te pehi i ngā tihi ngaru ngaohiko ki roto i te 110% o te ngaohiko kua whakatauria, ko ngā pūnga hiko konumohe ia ka neke ake i te 130%.
Momo Pātai: Hoahoa Ara iahiko Tiaki
P: Me pēhea te hoahoa i tētahi ara iahiko tiaki ngaohiko ngaru mō tētahiPūnga hiko Hononga-DChei ārai i te pakaru o te ngaohiko nui e puta mai ana i ngā whakawhiti whakawhiti?
A: Me whai whakaaro ki te kōwhiringa pūnga me te hoahoa ara iahiko o waho mō te tiakitanga ngaru. Tuatahi, i te wā e whiriwhiri ana i te ngaohiko whakatauranga o te pūnga, me whakarite kia 20% te iti rawa o te tawhiti (hei tauira, whakamahia he pūnga 1000V mō te pūnaha 800V). Tuarua, tāpirihia he pehi ngaohiko whakawhiti (TVS) he varistor rānei (MOV) ki te pae pahi, me te ngaohiko kume he teitei ake i te ngaohiko whakahaere noa. I te wā kotahi, whakamahia he ara iahiko RC snubber e hono ana i te taha o te taputapu whakawhiti hei mimiti i te kaha i te wā o te tukanga whakawhiti. I te wā o te hoahoa, whakatauirahia me te tātari i te urupare whakawhiti ki ngā ara iahiko poto me ngā ngaru kawenga, ā, manatokohia te wā urupare o te ara iahiko tiaki mā te ine tuturu (me iti iho i te 1μs te tikanga).
Momo Raru: Mana Whakahaere Auaha Tūturu
P: I raro i te taiao whakakotahi o te pāmahana teitei 125℃ me te ngaohiko teitei 800V, ka piki te ia turuturu o te pūnga DC-Link mai i te 1μA i te pāmahana rūma ki te 50μA, ka nui ake i te paepae haumaru. Me pēhea te whakaoti i tēnei?
A: Whakapai ake i te hanganga rauemi whakawehe, whakanuia te matotoru o te whakawehe (hei tauira, mai i te 3μm ki te 5μm) hei whakapai ake i te mahi whakamarumaru; kia tino aroturukihia te ma o te kiriata whakawehe i te wā e hangaia ana kia kore ai e puta he paru e piki ake ai te ia turuturu; whakamarokehia te matua pūnga i mua i te takai hei tango i te makuku o roto, hei whakaiti hoki i te ia turuturu i puta mai i te makuku.
Momo Pātai: Manatoko Pono
P: I roto i tētahi pūnaha 800V, me pēhea te manatoko i te pono mō te wā roa o ngā pūnga DC-Link, inā koa ko tō rātou roanga mahi i raro i te ahotea ngaohiko teitei?
A: Ko te manatoko pono e hiahia ana ki te whakakotahi i te whakamātautau ora tere me te whakatauira āhua mahi o te ao tūturu. Tuatahi, whakahaerehia te whakamātautau ahotea ngaohiko teitei: whakahaerehia ngā whakamātautau koroheketanga roa (hei tauira, 1000 hāora) i te 1.2-1.5 ngā wā o te ngaohiko whakatauranga, te aroturuki i te nekehanga kaha, te pikinga ESR, me ngā huringa iahiko turuturu. Tuarua, whakamahia te tauira Arrhenius mō te whakamātautau tere wera, te aromatawai i ngā āhuatanga roa o te ora i ngā pāmahana teitei (hei tauira, 85℃, 105℃ rānei) hei whakawhānui i te roa o te ora i raro i ngā āhuatanga mahi tūturu. I te wā kotahi, manatokohia te pumau hanganga mā te whakamātautau wiri me te ru miihini.
Momo Pātai: Taurite Rauemi
P: I roto i ngā taputapu SiC e mahi ana i ngā auau teitei (≥20kHz), me pēhea te whakataurite i ngā pūnga DC-Link i te ESR iti me ngā whakaritenga ngaohiko ātete teitei? He maha ngā wā ka puta he whakahē i ngā rauemi tuku iho: "ka hua ake te ESR iti i te ngaohiko ātete koretake, engari ka hua ake te ngaohiko ātete teitei i te ESR nui rawa."
A: Whakatairangahia ngā rauemi kiriata polypropylene (PP) whakarewa, polyimide (PI) rānei, nā te mea he kaha teitei te kaha o te dielectric me te iti o te mate dielectric. Ka whakamahia e ngā irahiko he hoahoa "paparanga whakarewa angiangi + wehewehenga maha-irahiko" hei whakaiti i te pānga kiri me te whakaiti i te ESR. I roto i te hanganga, ka whakamahia he tukanga takai wāhanga, ka tāpirihia he paparanga ārai i waenga i ngā paparanga irahiko hei whakapai ake i te ngaohiko ātete me te whakahaere i te ESR i raro i te 5mΩ.
Momo Pātai: Rahi me te Mahi
P: I te wā e whiriwhiri ana i ngā pūnga DC-Link mō te kaitahuri hiko 800V, me tutuki ngā whakaritenga mimiti ripple auau teitei i runga ake i te 20kHz, engari ko te rahi tāutanga anake e whakaaetia ana e te wāhi tahora PCB he ≤50mm×25mm×30mm. Me pēhea te whakataurite i ngā herenga mahi me te rahi?
A: Whakatairangahia ngā pūnga kiriata polypropylene whakarewa, e tuku ana i te ESR iti me te auau resonant teitei. Mā te arotau i te hanganga takai o roto o te pūnga me te whakamahi i ngā rauemi dielectric angiangi, ka piki ake te kiato capacitance. Ka whakapotohia e te tahora PCB te tawhiti i waenga i ngā taura pūnga me ngā taputapu hiko, ka whakaitihia te inductance parasitic me te karo i ngā patunga i roto i te rahi, i te mahi auau teitei rānei nā te tahora tauutuutu.
Momo Pātai: Whakahaere Utu
P: He nui ngā utu e pā ana ki te tūāpapa 800V. Me pēhea tā tātou whakahaere i ngā utu whiriwhiri me te hanga o ngā pūnga DC-Link me te whakarite kia iti te ESR me te roa o te ora?
A: Kōwhiria ngā pūnga hiko i runga i ngā hiahia tūturu, me te karo i te whai i te taurite tawhā teitei (hei tauira, he rawaka te rahui taurite iahiko ripple 20%; kāore e hiahiatia he pikinga nui rawa); whakamahia he whirihoranga ranu o te "rohe tātari matua whakatakotoranga-teitei + rohe āwhina whakatakotoranga-paerewa," ma te whakamahi i ngā pūnga kiriata ESR-iti i te rohe matua me ngā pūnga hiko konumohe polymer-utu iti i te rohe āwhina; arotau i te mekameka tuku mā te whakaiti i te utu wae o ngā pūnga takitahi mā te hoko nui; whakangawari i te hanganga tāutanga pūnga mā te whakamahi i te momo mono-mai hei utu mō te momo whakapiri hei whakaiti i ngā utu tukanga huihuinga.
Momo Pātai: Taurite Roanga Ora
Q: E hiahiatia ana te roanga o te ora o te pūnaha taraiwa hiko mō te ≥10 tau / 200,000 kiromita. Ka ngāwari ngā pūnga hiko DC-Link ki te koroheketanga i raro i te pāmahana teitei me te ahotea auau teitei. Me pēhea te whakataurite i te roanga o te ora o te pūnaha?
A: Kua whakamahia te hoahoa tango-hiko. Ka tīpakohia te ngaohiko whakatauranga o te pūnga i te 1.2-1.5 ngā wā o te ngaohiko pūnaha teitei rawa atu, ā, ka tīpakohia te iahiko riporipo whakatauranga i te 1.3 ngā wā o te iahiko whakahaere tuturu. Ka tīpakohia ngā rauemi mate-iti me te tauwehenga mate hiko-kore (tanδ) ≤0.001. Ka tāutahia he pūoko pāmahana tata ki te pūnga. Ina neke ake te pāmahana i te paepae, ka whakaohohia te parenga tango-hiko o te pūnaha hei whakaroa i te roa o te ora o te pūnga.
Momo Pātai: Te Whakamarara Wera o te Takai
P: I raro i ngā āhuatanga ngaohiko teitei 800V, kāore e ranea te ngaohiko pakaru o ngā rauemi takai pūnga DC-Link. I taua wā anō, me whai whakaaro ki te whai huatanga o te whakamarara wera. Me pēhea te whiriwhiri i te otinga takai?
A: Ko te rauemi PPA kua whakapakarihia ki te muka karāhe ātete-ngaohiko teitei (ngaohiko pakaru ≥1500V) kua tīpakohia hei anga. Ko te hanganga takai he hanganga paparanga-toru o te "anga + paninga ārai + silicone kawe wera". Ko te matotoru o te paninga ārai ka whakahaeretia i te 0.5-1mm, ā, ka whakakīia e te silicone kawe wera te āputa i waenga i te anga me te matua pūnga. Kua hangaia ngā awaawa whakamarara wera ki te mata o te anga hei whakanui ake i te horahanga whakamarara wera.
Momo Pātai: Whakapai ake i te Kiato Pūngao
P: He iti ake te mātotoru o te kaha o ngā pūnga kiriata i ngā pūnga hiko konumohe, he ngoikoretanga tēnei i roto i ngā tūāpapa kiato 800V. Haunga te whakamahi i te ngaohiko teitei ake hei whakaiti i ngā whakaritenga kaha, he aha ngā tikanga motuhake ka taea te whakakapi i tēnei ngoikoretanga?
A: 1. Whakamahia te kiriata polypropylene whakarewa me te tukanga takai auaha hei whakapai ake i te whai huatanga mō ia rōrahi;
2. Honoa ngā pūnga kiriata iti-kaha maha kia rite ki ngā taputapu SiC, kia māmā ake ai te tahora;
3. Whakauruhia ki ngā kōwae hiko me ngā pae pahi, me te whakarite i ngā inenga tika;
4. Whakamahia anō ngā āhuatanga ESR iti me ngā āhuatanga auau whakakorikori teitei hei whakaiti i ngā wāhanga āwhina.
Momo Pātai: Whakamārama Utu
P: I roto i ngā kaupapa 800V mō ngā kiritaki e aro nui ana ki te utu, me pēhea e taea ai e tātou te whakaatu mā te arorau me te whakapono he iti ake te "utu huringa ora" o ngā pūnga kiriata i tērā o ngā pūnga hiko konumohe?
A: 1. Neke atu i te 100,000 hāora te roa o te ora (2,000-6,000 hāora noa iho ngā pūnga hiko konumohe), ā, kāore e hiahiatia he whakakapinga auau;
2. Te pono nui, te whakaiti i ngā mate tiaki me ngā mate wā-kore;
3. 60% te iti ake o te rahi, ka penapena i ngā utu PCB me te hoahoa hanganga me te hanga;
4. He iti te ESR + 1.5% te whakapai ake i te whai huatanga, ka whakaiti i te whakapaunga pūngao.
Momo Pātai: Whakataurite i te Tikanga Whakaora-ā-Iho
P: Ko te "whakaora-ā-koe" o ngā pūnga hiko konumohe e pā ana ki te pirau pūnga tūturu i muri i te pakaru, i te mea e pānuitia ana hoki e ngā pūnga kiriata te "whakaora-ā-koe". He aha ngā rerekētanga nui o ā rātou tikanga whakaora-ā-koe me ngā hua? He aha te tikanga o tēnei mō te pono o te pūnaha?
A: 1. Ngā Rerekētanga Taketake o ngā Tikanga Whakaora-ā-Iho
Ngā Pūnga Kiriata: Ina pakaru te kiriata polypropylene whakarewa i te rohe, ka mimiti tonu te paparanga whakarewa hiko, ka hanga he wāhi whakamarumaru me te kore e kino te hanganga dielectric whānui.
Ngā Pūngao Hikohiko Konumohe: I muri i te pakaru o te kiriata waikura, ka ngana te electrolyte ki te whakatika engari ka maroke haere, kāore e taea te whakahoki mai i te mahi dielectric taketake; he tikanga whakatika kore mahi tēnei, he tikanga pau.
2. Ngā Rerekētanga o ngā Huanga Whakaora-ā-Iho
Ngā pūnga kiriata: Kāore i tino rerekē te kaha o te pūnga, e mau tonu ana ngā āhuatanga mahi matua pērā i te ESR iti me te auau teitei o te oro.
Ngā pūnga hiko konumohe: Ka heke tonu te kaha i muri i te whakaora-ā-ia anō, ka piki ake te ESR, ka heke te urupare auau, ā, ka nui haere te mōrearea o te rahunga.
3. Te Hiranga ki te Pono o te Pūnaha
Ngā pūnga kiriata: He pumau te mahi i muri i te whakaora-ā-ia anō, kāore e hiahiatia he wā whakatā mō te whakakapinga, e mau tonu ana te mahi pai o te pūnaha mō te wā roa, e tutuki ana i ngā whakaritenga auau-tiketike, ngaohiko-tiketike o te tūāpapa 800V.
Ngā pūnga hiko konumohe: Nā te pirau o te pūnga kua kohia, ka tere te pikinga o ngā ngaohiko me te hekenga o te pai o te pūnaha, ā, ka mutu, ka rahua te pūnaha, ka nui ake ngā mōrearea tiaki me te wā whakatā.
Momo Pātai: Pūwāhi Whakatairanga Waitohu
P: He aha ētahi waitohu e whakanui ana i te whakamahinga o ngā "pūngao kiriata" i roto i ngā waka 800V?
A: E aro nui ana te waitohu ki te whakamahinga o ngā pūnga kiriata i roto i ngā tono motuka 800V. Ko ngā painga matua ko te iti o te ESR (neke atu i te 95% te whakahekenga), te auau teitei o te oro (≈40kHz) e tika ana mō ngā whakaritenga auau teitei, ngaohiko teitei o te 800V+SiC, me te roa o te ora neke atu i te 100,000 hāora (he nui ake i te 2000-6000 hāora o ngā pūnga hiko konumohe). Ka whakaora-ā-koe anō hoki, ā, kāore e pirau, ka penapena i te 60% o te rōrahi me te neke atu i te 50% o te rohe PCB, ka whakapai ake i te pai o te pūnaha mā te 1.5%. He mea hangarau ēnei, he painga whakataetae hoki.
Momo Pātai: Whakataurite Taurite mō te Pikinga o te Pāmahana
T: Tena koa tatauhia, whakatairitehia hoki ngā uara ESR o ngā pūnga kiriata me ngā pūnga hiko konumohe i te 125°C me te 100kHz, me te pānga o tēnei rerekētanga pikinga pāmahana i puta mai i te ESR ki te pūnaha.
A: Whakatau Matua: I te 125°C/100kHz, ko te ESR o ngā pūnga kiriata he tata ki te 1-5mΩ, ko te ESR o ngā pūnga hiko konumohe he tata ki te 30-80mΩ. Ko te tuatahi ka piki ake te pāmahana o te 5-10°C anake, ko te tuarua ka eke ki te 25-40°C, ka pā nui ki te pono o te pūnaha, te whai huatanga, me ngā utu whakamarara wera.
1. Whakataurite Raraunga Tauanga
Ngā pūnga kiriata: ESR i te awhe milliohm (1-5mΩ), ka whakahaeretia te pikinga pāmahana i te 5-10°C i te 125°C/100kHz.
Ngā pūnga hiko konumohe: Ko te ESR kei roto i te awhe tekau miriōhm (30-80mΩ), ka eke te pikinga pāmahana ki te 25-40°C i raro i ngā tikanga whakahaere ōrite.
2. Te Pānga o ngā Rerekētanga o te Pikinga o te Pāmahana ki te Pūnaha
Ka tere ake te maroke o ngā irahiko i te pikinga teitei o te pāmahana o ngā pūnga hiko konumohe, ka whakaitihia ake te roa o te ora mā te 30%-50% ki te whakaritea ki te pāmahana rūma, ka piki ake te mōrearea o te rahunga o te pūnaha.
Ko te ESR teitei ka hua ake he ngaronga e whakaiti ana i te pai o te pūnaha mā te 2%-3%, ka hiahiatia he kōwae whakamarara wera tāpiri, e noho ana i te wāhi me te whakapiki i ngā utu. He iti te pikinga pāmahana o ngā pūnga kiriata, ā, kāore e hiahiatia he whakamarara wera tāpiri. He pai mō ngā āhuatanga whakahaere auau-teitei 800V, he kaha ake te pumau whakahaere mō te wā roa, ā, ka whakaiti i ngā whakaritenga tiaki.
Momo Pātai: Pānga ki te Awhe
P: Mō ngā waka pūngao hou pūngao hiko-tiketike 800V, ka pā tika te kounga o te pūnga DC-Link ki te whānuitanga o ia rā? He aha ngā rerekētanga motuhake ka kitea?
A: Ka pā tika ki te whānuitanga. Ko te āhuatanga iti o te ESR o te pūnga DC-Link ka whakaiti i ngā mate whakawhiti auau-tiketike, ka whakapai ake i te whai huatanga o te pūnaha taraiwa hiko, ā, ka hua ake he whānuitanga tūturu pakari ake. Mēnā he rite te nui o te mana, ka taea e te pūnga kounga teitei te whakanui ake i te whānuitanga mā te 1%-2%, ā, ka puhoi ake te hekenga o te whānuitanga i te wā e taraiwa tere ana me te whakaterenga auau. Mēnā kāore i te rawaka te mahi a te pūnga, ka maumauria te pūngao nā ngā ngaru hiko, ka puta he whakaaro hē ki te whānuitanga kua pānuitia.
Momo Pātai: Haumaru Utu
Q: E whakatairangahia ana e ngā tauira 800V ngā tere utu tere. He hononga tēnei ki te pūnga DC-Link? He tūponotanga haumaru kei te pūnga i te wā e utu ana?
A: He hononga kei reira, engari kāore he take e manukanuka ai mō ngā tūponotanga haumaru. Ka taea e ngā pūnga DC-Link kounga teitei te mimiti tere i te iahiko riporipo auau teitei i te wā e utu ana, ka whakau i te ngaohiko pahi me te ārai i ngā rerekētanga ngaohiko kei pā ki te mana utu, ka hua ake he utu tere maeneene ake, he pumau ake hoki. Kua hangaia ngā pūnga e tutuki ana i ngā whakaritenga me te kaha tu atu i te ngaohiko o te iti rawa 1.2 ngā wā o te ngaohiko pūnaha, ā, he iti ngā āhuatanga o te iahiko turuturu, ka ārai i ngā take haumaru pēnei i te turuturu me te pakaru i te wā e utu ana. Ka whakauruhia hoki e ngā kaihanga waka ngā tikanga tiaki ngaohiko nui mō te tiaki rua.
Momo Pātai: Mahi Mahana-Tiketike
P: Ka ngoikore te mana o tētahi waka 800V i muri i te pānga ki ngā pāmahana teitei i te raumati? He hononga tēnei ki te ātete pāmahana o te pūnga DC-Link?
A: Tērā pea he pānga o te ngoikore o te mana ki te ātete pāmahana o te pūnga. Mēnā kāore i te rawaka te ātete pāmahana o te pūnga, ka tino piki ake te ESR i ngā pāmahana teitei, ka piki ake ngā pikinga o te ngaohiko pahi. Ka whakaiti aunoa te pūnaha i te kawenga hei taputapu tiaki, ka ngoikore ake te mana. Ka taea e ngā pūnga kounga teitei te mahi pumau mō ngā wā roa i roto i ngā taiao neke atu i te 85℃, me te iti o te nekehanga ESR i ngā pāmahana teitei, kia kore ai e pāngia te putanga mana e te pāmahana, ā, kia mau tonu te mahi whakaterenga noa ahakoa i muri i te pānga ki ngā pāmahana teitei.
Momo Pātai: Aromatawai Pakeketanga
Q: E toru tau te roa o taku waka 800V e whakamahia ana, ā, i ēnei rā kua puhoi te tere o te utu, kua heke hoki te whānuitanga o te utu. Nā te tawhito o te pūnga hiko DC-Link tēnei? Me pēhea taku whakatau i tēnei?
A: He tino tūponotanga kei te koroheketanga o te pūnga hiko. He roa te roa o te ora o ngā pūnga hiko DC-Link. Tērā pea ka kitea te koroheketanga o ngā pūnga hiko ngoikore i muri i te 2-3 tau, ka kitea ko te hekenga o te kaha mimiti o te au ripple me te pikinga o ngā ngaronga, ka arahi tika ki te hekenga o te pai o te utu me te poto o te whānuitanga. He māmā noa te aromatawai: tirohia mēnā he maha ngā "pekenga mana" i te wā e utu ana, mēnā rānei he nui ake i te 10% te iti iho o te whānuitanga i te wā e utu ana te motuka. Whai muri i te whakakore i te hekenga o te pākahiko, ka taea te whakatau whānui kua heke te mahi a te pūnga hiko.
Momo Raru: Maeneene Pāmahana Iti
P: I ngā taiao hotoke iti te pāmahana, ka pāngia rānei te maeneene o te tīmatanga me te taraiwa o tētahi waka 800V e te pūnga hiko DC-Link?
Āe, ka pāngia. Ka taea e ngā pāmahana iti te whakarerekē i ngā āhuatanga hiko o ngā pūnga hiko mō te wā poto. Mena he iti rawa te auau oro o te pūnga hiko, ka raru pea te wiri o te motuka me te whakaroa i te tīmatanga i te wā tīmatanga nā te mea kāore e taea te urutau ki ngā āhuatanga auau teitei o ngā taputapu SiC. Ka taea e ngā pūnga hiko kounga teitei te tae ki ngā auau oro o ngā tekau kHz, e whakaatu ana i ngā rerekētanga mahi iti i ngā pāmahana iti, ka hua ake he tuku hiko maeneene i te wā tīmatanga, ā, kāore he oho i te wā e taraiwa ana i te tere iti.
Momo Pātai: Whakatūpato Hapa
P: He aha ngā whakatūpato ka tukuna e te waka mēnā ka pakaru te pūnga hiko DC-Link? Ka pakaru ohorere rānei?
A: Kāore e pakaru ohorere; ka tukuna e te waka he whakatūpato mārama. I mua i te pakaru o te pūnga hiko, tera pea ka pāngia koe e te puhoi o te urupare hiko, ngā whakatūpato "Powertrain Fault" i ētahi wā i runga i te papaaho, me ngā aukati utu maha. Ka aroturukihia e te pūnaha whakahaere o te waka te pumau o te ngaohiko pahi i te wā tūturu. Mena ka puta he nui rawa ngā huringa ngaohiko i te pakaru o te pūnga hiko, ka whakawhāitihia tuatahitia te putanga hiko (hei tauira, whakaitihia te tere mōrahi) kaua e whakaweto tonu i te miihini, kia nui ai te wā e taea ai e te kaiwhakamahi te tae atu ki te toa whakatika.
Momo Pātai: Utu Whakatika
P: I te wā o ngā whakatikatika, i kīia mai ki ahau me whakakapi te pūnga hiko DC-Link. He nui te utu mō te whakakapinga? Me wetewete ngā wāhanga maha, ka pā ki te pono o te waka i muri mai? W: He taurite te utu whakakapinga, ā, kāore e pā ki te pono o muri mai. Ko ngā pūnga hiko DC-Link i roto i ngā waka 800V he hoahoa whakauru te nuinga. Ahakoa he nui ake te utu o te pūnga hiko kotahi kounga teitei i te pūnga hiko noa, kāore e hiahiatia te whakakapinga auau (neke atu i te 100,000 kiromita te roa o te ora). Kāore e hiahiatia te wetewete i ngā wāhanga matua mō te whakakapinga nā te mea he iti ngā pūnga hiko kounga teitei (hei tauira, 50×25×30mm) me te tahora PCB kiato. Ko te wetewete anake me tango te whare inverter puku hiko. I muri i te whakatikatika, ka taea te mahi whakatikatika kia rite ki ngā paerewa wheketere taketake, me te kore e pā ki te pono taketake o te waka.
Momo Pātai: Whakahaere Haruru
P: He aha ētahi waka 800V kāore he haruru iahiko i ngā tere iti, ko ētahi he haruru e kitea ana? He hononga tēnei ki te pūnga iahiko DC-Link?
A: Āe. Ko te haruru o ia au e puta ake ana i te nuinga o te wā e ahu mai ana i te haruru o te pūnaha. Mena kei te tata te auau haruru o te pūnga DC-Link ki te auau whakawhiti o te motuka i ngā tere iti, ka puta he haruru haruru. Kua arotauhia te hoahoa o ngā pūnga kounga teitei kia kore ai e whakamahia whānuitia te awhe auau whakawhiti, ā, ka taea te mimiti i ētahi pūngao haruru, ka hua ake he iti ake te haruru o ia au i ngā tere iti, ā, he pai ake te marino o te kāpata.
Momo Pātai: Te Tiakitanga Whakamahinga
Q: He maha ngā wā ka taraiwa ahau i ngā tawhiti roa i roto i tētahi waka 800V, me te utu tere me te tere tere. Ka tere ake te tawhito o te pūnga DC-Link i tēnei? Me pēhea taku tiaki?
A: Ka tere ake te koroheketanga, engari ka taea te whakaroa mā te whakamahi i ngā tikanga māmā. Mā te utu tere me te tere tere tonu ka noho te pūnga i roto i te āhua mahi auau teitei, ngaohiko teitei mō ngā wā roa, ka tere ake te koroheketanga. He māmā noa te tiaki: karohia te utu tere ina kei raro iho te taumata pākahiko i te 10% (hei whakaiti i ngā piki me ngā heke o te ngaohiko). I te rangi wera, i muri i te utu tere, kaua e tere ki te taraiwa i ngā tere teitei; taraiwa i te tere iti mō te 10 meneti i te tuatahi kia heke haere te pāmahana o te pūnga, ka taea ai te whakaroa ake i tōna roanga ora.
Momo Pātai: Roanga Ora me te Pūtāhui
Q: Ko te wā whakamana pākahiko mō ngā waka 800V he 8 tau/150,000 kiromita te tikanga. Ka taea e te pūnga hiko DC-Link te pupuri i te roanga o te ora ki te wā whakamana pākahiko? He pai te whakakapi i muri i te paunga o te wā whakamana?
A: Ka taea e te pūnga hiko kounga teitei te roa o te ora e rite ana, e neke atu rānei i te wā whakamana pākahiko (tae atu ki te 100,000 kiromita, neke atu rānei). He mea tika tonu te whakakapi i muri i te paunga o te wā whakamana. Ka whakamahia e ngā tauira 800V e tutuki ana ngā whakaritenga hiko ngā pūnga hiko DC-Link roa te ora. I raro i te whakamahinga noa, kāore te roa o te ora o te pūnga hiko e iti iho i te roa o te pākahiko. Ahakoa me whakakapi i muri i te paunga o te wā whakamana, ko te utu mō te whakakapi i tētahi pūnga hiko kotahi he torutoru mano yuan noa iho, he iti iho i te utu mō te whakakapi i te pākahiko. Heoi anō, ka taea e te whakakapinga te whakahoki mai i te whānuitanga o te waka, te utu me te mahi hiko, ā, he tino whai hua.
Wā tuku: Hakihea-03-2025