Kalubalen tsarin 800V: tarin caji don tsarin caji

Tarin caji na 800V "Asalin caji"

Wannan labarin ya fi magana ne game da wasu buƙatun farko na 800Vtara cajiDa farko bari mu dubi ka'idar caji: Lokacin da aka haɗa maɓallin caji da ƙarshen abin hawa, tarin caji zai samar da (1) wutar lantarki mai ƙarancin wutar lantarki ta DC ga ƙarshen abin hawa don kunna BMS da aka gina a ciki (tsarin sarrafa batir) na abin hawa na lantarki Bayan kunnawa, (2) haɗa ƙarshen motar zuwa ƙarshen tarin, musanya sigogin caji na asali kamar matsakaicin ƙarfin buƙatar caji na ƙarshen abin hawa da matsakaicin ƙarfin fitarwa na ƙarshen tarin, bayan an daidaita ɓangarorin biyu daidai, BMS (tsarin sarrafa batir) na ƙarshen abin hawa zai aika bayanai game da buƙatar wutar lantarki gatashar caji ta ev, kumatara caji na motar lantarkizai daidaita ƙarfin fitarwa da wutar lantarki bisa ga wannan bayanin, kuma a hukumance zai fara cajin abin hawa, wanda shine babban ƙa'idarhaɗin caji, kuma muna buƙatar mu saba da shi da farko.

Cajin 800V: "ƙara ƙarfin lantarki ko halin yanzu"

A ka'ida, idan muna son samar da wutar lantarki don rage lokacin caji, yawanci akwai hanyoyi guda biyu: ko dai ku ƙara batirin ko ƙara wutar lantarki; A cewar W=Pt, idan aka ninka wutar lantarki sau biyu, lokacin caji zai ragu da rabi; A cewar P=UI, idan aka ninka wutar lantarki ko wutar lantarki sau biyu, za a iya ninka wutar lantarki sau biyu, wanda aka ambata akai-akai kuma ana ɗaukarsa a matsayin hankali.

Idan wutar lantarki ta fi girma, za a sami matsaloli biyu, girman wutar lantarki, girmanta da girmanta, kebul ɗin da ke buƙatar wutar lantarki, wanda zai ƙara diamita da nauyi na waya, ya ƙara farashi, kuma bai dace da ma'aikata su yi aiki ba; Bugu da ƙari, bisa ga Q=I²Rt, idan wutar lantarki ta fi girma, asarar wutar lantarki ta fi girma, kuma asarar tana nuna zafi, wanda hakan kuma yana ƙara matsin lamba na sarrafa zafi, don haka babu shakka ba shi da kyau a ƙara ƙarfin caji ta hanyar ci gaba da ƙara wutar lantarki, ko dai caji ne ko tsarin tuƙi a cikin mota.

Idan aka kwatanta da caji mai sauri mai yawan gaske,babban ƙarfin lantarki mai sauri cajiyana haifar da ƙarancin zafi da ƙarancin asara, kuma kusan kamfanonin motoci na yau da kullun sun ɗauki hanyar ƙara ƙarfin lantarki, idan aka yi amfani da babban ƙarfin lantarki cikin sauri, a ka'ida, lokacin caji zai iya raguwa da kashi 50%, kuma ƙaruwar ƙarfin lantarki kuma zai iya ƙara ƙarfin caji cikin sauƙi daga 120KW zuwa 480KW.

Cajin 800V: "Tasirin zafi wanda ya dace da ƙarfin lantarki da halin yanzu"

Amma ko dai ƙara ƙarfin lantarki ne ko ƙara ƙarfin lantarki ne, da farko dai, tare da ƙaruwar ƙarfin caji, zafinka zai bayyana, amma bayyanar zafi na ƙara ƙarfin lantarki da ƙara ƙarfin lantarki ya bambanta. Duk da haka, na farko ya fi dacewa idan aka kwatanta.

Saboda ƙarancin juriya da wutar lantarki ke fuskanta lokacin da take wucewa ta cikin na'urar, hanyar ƙara ƙarfin lantarki tana rage girman kebul ɗin da ake buƙata, kuma zafin da za a watsar ya ragu, kuma yayin da wutar ke ƙaruwa, ƙaruwar yankin da ke ɗauke da wutar lantarki yana haifar da babban diamita na waje da babban nauyin kebul, kuma zafin zai ƙaru a hankali tare da tsawaita lokacin caji, wanda ya fi ɓoye, wanda hakan babban haɗari ne ga batirin.

Cajin 800V: "Wasu ƙalubale nan take game da tarin caji"

Cajin sauri na 800V shima yana da wasu buƙatu daban-daban a ƙarshen tarin:

Idan daga mahangar jiki, tare da ƙaruwar ƙarfin lantarki, girman ƙira na na'urori masu alaƙa zai ƙaru, misali, bisa ga matakin gurɓataccen iska na IEC60664 shine 2 kuma nisan rukunin kayan rufi shine 1, nisan na'urar wutar lantarki mai ƙarfi yana buƙatar zama daga 2mm zuwa 4mm, kuma buƙatun juriya iri ɗaya na rufi suma zasu ƙaru, kusan nisan da ke rarrafe da buƙatun rufi suna buƙatar ninka, wanda ke buƙatar sake fasalin a cikin ƙira idan aka kwatanta da ƙirar tsarin wutar lantarki na baya, gami da masu haɗawa, sandunan jan ƙarfe, masu haɗawa, da sauransu. Bugu da ƙari, ƙaruwar ƙarfin lantarki kuma zai haifar da ƙarin buƙatu don kashe baka, kuma yana da mahimmanci a ƙara buƙatun wasu na'urori kamar fis, akwatunan canzawa, masu haɗawa, da sauransu, waɗanda suma suka dace da ƙirar motar, wanda za a ambata a cikin labarai masu zuwa.

Tsarin caji mai ƙarfin lantarki mai ƙarfin lantarki 800V yana buƙatar ƙara tsarin sanyaya ruwa mai aiki na waje kamar yadda aka ambata a sama, kuma sanyaya iska ta gargajiya ba za ta iya biyan buƙatun ko sanyaya mai aiki ko mai aiki ba, da kuma kula da yanayin zafi natashar caji ta motar lantarkiLayin bindiga zuwa ƙarshen abin hawa shi ma ya fi na da, kuma yadda za a rage da kuma sarrafa zafin wannan ɓangaren na tsarin daga matakin na'urar da matakin tsarin shine abin da kowace kamfani za ta inganta kuma ta warware shi a nan gaba; Bugu da ƙari, wannan ɓangaren na zafi ba wai kawai zafi ne da ake kawowa ta hanyar caji fiye da kima ba, har ma da zafi da na'urorin wutar lantarki masu yawan mita ke kawowa, don haka yadda ake yin sa ido a ainihin lokaci da kwanciyar hankali, inganci da aminci don cire zafi yana da matuƙar mahimmanci, wanda ba wai kawai ci gaba ne a cikin kayan aiki ba, har ma da gano yanayin aiki, kamar ainihin lokaci da kuma sa ido kan zafin caji mai inganci.

A halin yanzu, ƙarfin fitarwa naTarin caji na DCA kasuwa akwai ƙarfin lantarki na 400V, wanda ba zai iya cajin batirin wutar lantarki na 800V kai tsaye ba, don haka ana buƙatar ƙarin ƙarfin DCDC don ƙara ƙarfin lantarki na 400V zuwa 800V, sannan a caji batirin, wanda ke buƙatar ƙarin ƙarfi da sauyawa mai yawa, kuma module ɗin da ke amfani da silicon carbide don maye gurbin IGBT na gargajiya shine zaɓin da ake so a yanzu, kodayake modules ɗin silicon carbide na iya ƙara ƙarfin fitarwa na tarin caji da rage asara, amma farashin kuma ya fi girma, kuma buƙatun EMC suma sun fi girma.

A taƙaice dai. A takaice dai, za a buƙaci a ƙara yawan ƙarfin lantarki a matakin tsarin da matakin na'ura, gami da tsarin sarrafa zafi, tsarin kariyar caji, da sauransu, kuma matakin na'urar ya haɗa da inganta wasu na'urorin maganadisu da na'urorin wutar lantarki.