I-Technical Deep Dive | I-DC-Link Film Capacitors Ingabhekana Kanjani Nezinselele Zokuhlinza Kwe-Voltage Nokuthembeka Ku-800V Electric Drive Platforms?

Isingeniso

Njengoba amapulatifomu anamandla kagesi angu-800V eba yinsakavukela ezimotweni zamandla amasha, ama-inverter kagesi abeka izidingo eziphakeme ezicini zefrikhwensi ephezulu yama-DC-Link capacitor. Ama-electrolytic capacitor e-aluminium endabuko, anomkhawulo nge-ESR yawo ephezulu kanye nokusabela kwemvamisa, athambekele ekukhuphukeni kwamandla kagesi, abeke umkhawulo ekusebenzeni kahle kwesistimu futhi avimbele ukusebenza okugcwele kwamadivayisi we-SiC.

Umdwebo wohlelo lwendawo ye-I-DC-Link capacitorku-inverter

Izixazululo ze-YMIN Film Capacitor

- Ukuhlaziywa Kobuchwepheshe Kwemsuka Yembangela - Ngenxa yezinto zazo ezibonakalayo kanye nezici zesakhiwo, ama-aluminium electrolytic capacitor ngokuvamile ane-ESR ephezulu kanye nefrikhwensi yokuziphendulela ephansi (imvamisa kuphela cishe ku-4kHz). Ngaphansi kokushintshwa kwemvamisa ephezulu, ikhono lazo lokumunca i-high-frequency ripple current alanele, okubangela kalula ukuguquguquka kwamandla kagesi webhasi, okubuye kuthinte ukuzinza kwesistimu nempilo yedivayisi yamandla. - Izixazululo ze-YMIN kanye Nezinzuzo Zenqubo -Uchungechunge lwe-MDP lwe-YMINama-filimi capacitor asebenzisa i-metallized polypropylene film material kanye nenqubo yokuvunguza emisha ukuze kuzuzwe ukuthuthukiswa kokusebenza okulandelayo: I-ESR yehliswa ibe sezingeni le-miliohm, inciphisa kakhulu ukulahlekelwa kokushintsha; imvamisa ye-resonant iyakhuphuka ibe amashumi e-kHz, ivumelana ngokugcwele nezidingo zohlelo lokusebenza lwe-high-frequency ye-SiC/MOSFETs; kanye nezinzuzo zabo zihlanganisa amandla okumelana nomthamo omkhulu, ukuvuza okuphansi kwamanje, nokuphila isikhathi eside, okubenza bafaneleke ngokukhethekile ezindaweni zokusebenza zamandla kagesi aphezulu, ama-high-frequency.

- Ukuqinisekiswa Kwedatha kanye Nencazelo Yokwethembeka -

Izimo zohlelo lokusebenza namamodeli anconyiwe -

Ikesi Lokufaka Isicelo Esijwayelekile: Inkundla enkulu yedrayivu kagesi engu-800V ye-automaker isebenzisa ama-capacitor ayisishiyagalombili e-MDP-800V-15μF kusekethe ye-DC-Link ye-inverter yedrayivu eyinhloko, ithathela indawo ngempumelelo ama-22 450V e-aluminium electrolytic capacitor yesixazululo sokuqala. Lokhu kunciphisa indawo ye-PCB ngaphezu kuka-50%, kunciphisa ukuphakama kwamandla kagesi wamabhasi ngo-40%, futhi kuthuthukisa ukusebenza kahle kokuphakama kohlelo cishe ngo-1.5%. - Amamodeli Anconyiwe -

Isiphetho
Uchungechunge lwe-YMIN MDP alulona nje kuphela i-capacitor esebenza kahle kakhulu kodwa futhi luyisilawuli samandla kagesi esibalulekile ku-high-voltage, ama-high-frequency systems. Ingasiza onjiniyela babhekane ngqo nezinselele zedizayini futhi bathuthukise ngokugcwele ukusebenza kwesistimu nokuthembeka.