Q1: Ndeipi basa rekutanga remafirimu capacitors mumagetsi ekuvaka emagetsi emagetsi matsva?
A: SeDC-link capacitors, basa ravo rekutanga nderekutora mabhazi akakwira, kushanduka kwemagetsi, uye kudzivirira IGBT/SiC MOSFET switching madivayiri kubva kumagetsi enguva pfupi uye masurges aripo.
Q2: Sei iyo 800V chikuva ichida yepamusoro-inoshanda firimu capacitors?
A: Sezvo simba rebhazi rinowedzera kubva ku400V kusvika ku800V, zvinodiwa zve capacitor zvinomira magetsi, ripple current absorption performance, uye kupisa kwekushisa kunowedzera zvakanyanya. Iyo yakaderera ESR uye yakakwira inomira voltage maitiro emufirimu capacitor akanyanya kukodzera kune yakakwira-voltage nharaunda.
Q3: Ndeapi mabhenefiti emufirimu capacitors pamusoro pe electrolytic capacitors mumotokari nyowani dzesimba?
A: Ivo vanopa yakakwirira inomira voltage, yakaderera ESR, isiri-polar, uye ine hupenyu hurefu. Yavo inonzwika frequency yakakwira zvakanyanya kupfuura iyo ye electrolytic capacitors, inoenderana nepamusoro-frequency switching zvinodiwa zveSiC MOSFETs.
Q4: Nei mamwe ma capacitor achikonzera zviri nyore kukwira kwemagetsi muSiC inverters?
A: Yakakwira ESR uye yakaderera resonant frequency inovadzivirira kubva zvinobudirira kutora yakakwira-frequency ripple current. Kana SiC ichichinja nekumhanya nekukurumidza, kukwira kwemagetsi kunowedzera, zvinogona kukuvadza mudziyo.
Q5: Ko mafirimu capacitors anobatsira sei kuderedza saizi yemagetsi drive masisitimu?
A: Muchidzidzo cheWolfspeed, 40kW SiC inverter yaida mafirimu masere chete capacitor (achienzaniswa ne22 electrolytic capacitors yesilicon-based IGBTs), zvakanyanya kuderedza PCB tsoka uye uremu.
Q6: Ndezvipi zvitsva zvinodiwa zvinoita yakakwirira switching frequency nzvimbo paDC-Link capacitors?
A: Lower ESR inodiwa kuderedza kuchinja kwekurasikirwa, yakakwirira resonant frequency inodiwa kudzvinyirira yakakwira-frequency ripple, uye zvirinani dv/dt kutsungirira kugona kunodiwa zvakare.
Q7: Kuvimbika kwehupenyu hwemafirimu capacitors kunoongororwa sei?
A: Izvo zvinoenderana nekugadzikana kwekupisa kwezvinhu (semuenzaniso, polypropylene firimu) uye dhizaini yekupisa kupisa. Semuyenzaniso, iyo YMIN MDP yakatevedzana inonatsiridza hupenyu pakupisa kwakanyanya nekugadzirisa kupisa kwekupisa chimiro.
Q8: Ko ESR yefirimu capacitors inokanganisa sei kushanda kwehurongwa?
A: Yakaderera ESR inoderedza kurasikirwa kwesimba panguva yekuchinja, inoderedza kushushikana kwemagetsi, uye inovandudza zvakananga inverter kushanda.
Q9: Sei mafirimu capacitor akakodzera zvakanyanya kune yakakwirira-vibration nharaunda dzemotokari?
A: Yavo yakasimba-nyika chimiro, isina mvura ye electrolyte, inopa yepamusoro vibration kuramba kana ichienzaniswa ne electrolytic capacitors, uye yavo polarity-isina kuisirwa kunoita kuti iwedzere kuchinjika.
Q10: Ndeipi ikozvino yekupinda chiyero chemufirimu capacitors mumagetsi drive inverters?
A: Muna 2022, iyo yakaiswa yefirimu capacitor-based inverters yakasvika 5.1117 miriyoni units, inoverengera 88.7% yehuwandu hwakaisirwa huwandu hwemagetsi ekudzora masisitimu. Makambani anotungamira akadai saTesla neNidec akaverengera 82.9%.
Q11: Sei mafirimu capacitors ari kushandiswawo mune photovoltaic inverters?
A: Zvinodiwa zvekuvimbika kwepamusoro uye hupenyu hurefu zvakafanana nezviri mumotokari kunyorera, uye ivo zvakare vanofanirwa kushingirira kuchinja kwekunze kwekushisa.
Q12: Iyo MDP yakatevedzana inogadzirisa sei voltage kusagadzikana nyaya mumaseketi eSiC?
A: Yayo yakaderera ESR dhizaini inoderedza switching overshoot, inovandudza dv/dt inomira ne30%, uye inoderedza njodzi yekuparara kwemagetsi.
Q13: Iyi nhevedzano inoita sei pakupisa kwakanyanya?
A: Tichishandisa zvinhu zvakatsiga zvakadzikama uye chimiro chinoshanda chekupisa kupisa, tinova nechokwadi chekuora kwehuwandu hwepasi pasi pe5% pa125 ° C.
Q14: Iyo MDP yakatevedzana inowana sei miniaturization?
A: Inovandudza tekinoroji-yefirimu tekinoroji inowedzera huwandu pavhoriyamu yeyuniti, zvichikonzera kuwanda kwesimba kudarika avhareji yeindasitiri, ichigonesa compact electric drive dhizaini.
Q15: Mari yekutanga yefirimu capacitors yakakwirira kudarika ye electrolytic capacitors. Vanopa mukana wemubhadharo pamusoro pehupenyu?
A: Hongu. Firimu capacitors inogona kugara kusvika kuhupenyu hwemotokari pasina kutsiva, nepo electrolytic capacitors inoda kugara ichigadziriswa. Mukufamba kwenguva, mafirimu capacitors anopa mari yakaderera.
Nguva yekutumira: Oct-14-2025