Mabhenefiti ezvigadzirwa zvemafirimu capacitor
Macapacitor ekutanga eDC anotsigira mafirimu ese aishandisa macapacitor emagetsi. Nekuvandudzwa kwetekinoroji yecapacitor yefirimu, kunyanya kuvandudzwa kwetekinoroji yebase film uye kubuda kwetekinoroji ye metallization segmentation, kwete chete huwandu hwemacapacitor efirimu hwava hudiki uye hushoma, asi huwandu hwemagetsi anomira hwechigadzirwa hwaramba huri padanho rakakura. Iye zvino makambani akawanda anoshandisa macapacitor epolypropylene ekupisa kwakanyanya semacapacitor ekutsigira eDC. Muenzaniso wakajairika ndewekuvandudzwa kweToyota's RIUS model; uye vamiririri vemakambani emota dzemumba ndiBYD F3DM naE6, ese ari maviri anoshandisa macapacitor efirimu semacapacitor ekutsigira eDC. Macapacitor efirita anoshandiswa muchizvarwa chekutanga cheToyota Prius macapacitor emagetsi. Kutanga kubva kuchizvarwa chechipiri, macapacitor efirita efirimu DC-LINK capacitors akashandiswa panzvimbo pezvo.
A. Kuchengetedzwa kwakanaka kwechigadzirwa uye kuramba kwakasimba kwemagetsi akawandisa
Sezvo macapacitor efirimu aine hunhu hwekuzviporesa uye akagadzirwa zvinoenderana ne1EC61071 standard, resistance ye surge voltage ye capacitor yakakura kupfuura 1.5 ye rated voltage. Pamusoro pezvo, capacitor inoshandisa split film technology, saka capacitor haizoburitse short circuit breakdown mu theory, izvo zvinovandudza zvakanyanya kuchengetedzeka kwerudzi urwu rwe capacitor. Nzira yakajairika yekukundikana i open circuit. Mumashandisirwo chaiwo, peak voltage resistance ye capacitor zvakare chiratidzo chakakosha chekuongorora ma capacitor. Kutaura zvazviri, kune electrolytic capacitors, maximum surge voltage inobvumirwa i1.2 times, izvo zvinomanikidza vashandisi kufunga nezve peak voltage pane nominal voltage.
B. Hunhu hwakanaka hwekupisa, huwandu hwekupisa kwechigadzirwa hwakafara, kubva -40C-105C
Firimu repolypropylene rinopisa zvakanyanya rinoshandiswa muDC support film capacitor rine kugadzikana kwekushisa uko kusina polyester film uye electrolytic capacitors. Sezvo tembiricha ichikwira, kugona kwepolypropylene film capacitor kunoderera zvakanyanya, asi chiyero chekuderera chishoma, chingangoita 300PPM/C; nepo kugona kwepolyester film kuchichinja zvakanyanya netembiricha, kungave kuri muchikamu chekupisa chakakwira kana muchikamu chekupisa chakaderera, chinova +200~+600PPM/C.
C. Hunhu hwakagadzikana hwema frequency, hunhu hwakanaka hwema frequency epamusoro echigadzirwa
Parizvino, ma frequency mazhinji ekuchinjana kwe controller anenge 10K HZ, izvo zvinoda kuti chigadzirwa chive nekushanda kwakanaka kwe high-frequency. Kune ma electrolytic capacitors uye polyester film capacitors, chinodiwa ichi idambudziko.
D. Hapana polarity, inogona kumira reverse voltage
Maelectrode emacapacitor emafirimu isimbi dzakakura dzakaiswa pamafirimu matete. Chigadzirwa ichi hachina polarity, saka chiri nyore kushandisa, uye hapana chikonzero chekufunga nezvepositi dzakanaka nedzisina kunaka. Kune macapacitor emaelectrolytic, kana voltage inodzokera shure inodarika 1.5 times Un ikaiswa pa electrolytic capacitor, inokonzera makemikari mukati me capacitor. Kana voltage iyi ikagara kwenguva yakareba, capacitor inoputika, kana kuti electrolyte inobuda sezvo kumanikidzwa kwemukati kwe capacitor kuchiburitswa.
E. Voltage yepamusoro, hapana ma series uye balancing resistors anodiwa
Kuti simba remagetsi riwedzere, volteji yemabhazi yemota dzehybrid nemota dzefuel cell dziri kuwedzera. Mavolteji ebhatiri anowanzo pihwa kumota dziri pamusika ndee280V, 330V ne480V. Macapacitor anoenderana nawo akasiyana neavagadziri vakasiyana, asi kazhinji ndee450V, 600V, 800V, uye kugona kwawo kunobva pa0.32mF kusvika 2mF. Voltage yakayerwa yemacapacitor eelectrolytic haisi yepamusoro pe500V, saka kana voltage yebhazi yakakwira kupfuura 500V, sisitimu inogona kungovandudza voltage inomira yecapacitor bank nekubatanidza macapacitor eelectrolytic akatevedzana. Nenzira iyi, kwete chete vhoriyamu nemutengo wecapacitor bank zvinowedzerwa, asiwo inductance neESR mucircuit zvinowedzerwa.
F. ESR yakaderera, kuramba kwakasimba kweripple current
Capacitor yefirimu yakakura kupfuura 200mA/μF, uye capacitor yemagetsi ine simba re ripple current re20mA/μF. Izvi zvinogona kuderedza zvakanyanya kugona kwe capacitor inodiwa musystem.
G. ESL Yakaderera
Dhizaini yeinverter yekudzika kwemhepo inoda kuti chikamu chayo chikuru, iyo DC-Link capacitor, ive neinductance yakaderera zvikuru. Macapacitor eDC-Link DC filter film capacitors anoshanda zvakanyanya anobatanidza busbar mu capacitor module kuderedza self-inductance yayo (<30nH), zvichideredza zvakanyanya oscillation effect pakuchinja kunodiwa. Nokudaro, capacitor yekudzika kwemhepo yakabatana neDC-Link capacitor inowanzosiyiwa, uye capacitor electrode yakabatana zvakananga neIGBT.
H. Kudzivirira kwakasimba kwesimba remagetsi
Inogona kutsungirira mafungu makuru pakarepo. Tekinoroji yekucheka mafungu uye tekinoroji yekukora capacitor inogona kuvandudza tembiricha yemagetsi inokwira nekukwira uye kugona kwemagetsi kuvhundutsa chigadzirwa.
J. Hupenyu hurefu hwebasa
Hunhu hwefirimu husingachemberi hunoratidza kuti capacitor yefirimu ine hupenyu hwakareba, kunyanya kana iine voltage yakayerwa uye tembiricha yekushanda yakayerwa, hupenyu hwebasa hwakakura kupfuura maawa 15000-20000; kana avhareji iri 30Km/H, inogona kuva ne450000Km muhupenyu hwebasa, uye hupenyu hwecapacitor hwakakwana makiromita emota.
Macapacitor efirimu eDC-LINK anoshanda zvakanyanya macapacitor anoshandisa maitiro matsva ekugadzira uye tekinoroji yefirimu yakagadzirwa nesimbi. Anowedzera simba remagetsi emacapacitor efirimu echinyakare, zvinoreva kuti saizi yemacapacitor inoderedzwawo. Kune rumwe rutivi, inobatanidza capacitor core nebusbar kuti isangane nezvinodiwa nevatengi zvehukuru hunochinjika, izvo hazvingoiti kuti inverter module yese ive diki, asiwo zvinoderedza zvakanyanya inductance inodonha muchikamu chekushandisa, zvichiita kuti mashandiro edunhu ave akagadzikana. Dhizaini yedunhu inoshandiswa mumotokari dzemagetsi ine voltage yakakwira, current inoshanda zvakanyanya, overvoltage, reverse voltage, high peak current, uye zvinodiwa zvehupenyu hurefu. Macapacitor efirimu pasina mubvunzo ndiyo sarudzo yemotokari dzemagetsi seDC support capacitors.
CRE inopa mhinduro dzehunyanzvi dze capacitor dzemotokari dzemagetsi nemotokari dzemagetsi dzehybrid. DKMJ-AP series yedu neDMJ-PC series zvinopa basa rakakosha rekusefa reDC-Link mu EV ne HEV motor controllers. Dzine simba rakakura muhukuru hudiki uye bandgap yakafara (WGB) kuti ienderane nezvinodiwa zvekugadzira.
Dhawunirodha Mafaira
