Rudzi rweDambudziko: Hunhu Hwakawanda-Hunhu
Mubvunzo: Sei hunhu hwe "high-frequency" hweMa capacitor eDC-Linkyakaoma zvikuru mumapuratifomu emagetsi e800V?
A: Papuratifomu ye800V, voltage yebhazi re inverter yakakwira, uye frequency yekuchinja yemidziyo yeSiC inowanzo kuwedzera kusvika pa20 ~ 100kHz. Kuchinja kwefrequency yepamusoro kunogadzira dv/dt yakakura uye ripple current, zvichiwedzera zvakanyanya zvinodiwa zve capacitor's ESR, ESL, uye resonant hunhu. Kana mhinduro ye capacitor isingaitwe nenguva, inotungamira mukuchinja kwevoltage yebhazi uye kutokonzera kukwira kwevoltage.
Rudzi rweDambudziko: Kuenzanisa Kwekushanda
Mubvunzo: Mupuratifomu ye800V, mabhenefiti chaiwo eDC-Link film capacitors pane echinyakare aruminiyamu electrolytic capacitors mu high-frequency response angayerwa sei? Kunyanya, ndeapi data rinotsigira mukana uyu mukudzvinyirira voltage surges?
A: Macapacitor emafirimu anoratidza resistance yakaderera ye equivalent series (ESR) pamafrequencies akakwira, akadai se2.5mΩ pa50kHz, nepo macapacitor ealuminium electrolytic anowanzova nemaESR anotangira pamakumi kusvika kumazana e mΩ. ESR yakaderera inokonzera kurasikirwa nekupisa kwakaderera uye kugona kwakakwira kwe dV/dt kunodzivirira, zvichinyatso deredza voltage inokonzerwa nekumhanya kwakanyanya kwekuchinja kwema capacitor eSiC. Ruzivo rwechokwadi rwekuyera runoratidza kuti pasi pe800V/300A mamiriro ezvinhu, macapacitor emafirimu anogona kudzvinyirira voltage surge peaks kusvika mukati me110% yevoltage yakayerwa, nepo macapacitor ealuminium electrolytic anogona kudarika 130%.
Rudzi rweMubvunzo: Dhizaini yeDziviriro yeDunhu
Q: Maitiro ekugadzira circuit yekudzivirira ma voltage e surge yeDC-Link capacitorkudzivirira kuputsika kwemagetsi akawandisa kunokonzerwa nekuchinja ma transients?
A: Kudzivirirwa kwesimba remagetsi kunoda kufungwa nezvesarudzo ye capacitor uye dhizaini yedunhu rekunze. Chekutanga, pakusarudza voltage yakayerwa ye capacitor, bvumira kanenge 20% margin (semuenzaniso, shandisa capacitor ye1000V ye 800V system). Chechipiri, wedzera transient voltage suppressor (TVS) kana varistor (MOV) kubhawa, ine voltage ye clamping yakakwira zvishoma pane voltage yakajairika yekushanda. Panguva imwe chete, shandisa RC snubber circuit yakabatana pamwe chete ne switching device kuti itore simba panguva ye switching process. Munguva yekugadzira, tevedzera uye ongorora mhinduro ye transient kune short circuits uye load surges, uye simbisa nguva yekupindura ye protection circuit kuburikidza nekuyera chaiko (kazhinji inodiwa kuti ive pasi pe 1μs).
Rudzi rweDambudziko: Kudzora Kubuda Kwemvura
Mubvunzo: Pasi pemamiriro ekunze akabatana ekupisa kwakanyanya kwe125℃ uye 800V high voltage, kuyerera kwekubuda kweDC-Link capacitor kunowedzera kubva pa1μA pakupisa kwemumba kusvika pa50μA, zvichipfuura mwero wekuchengetedza. Ungagadzirisa sei izvi?
A: Gadzirisa kugadzirwa kwezvinhu zve dielectric, wedzera ukobvu hwe dielectric (semuenzaniso, kubva pa3μm kusvika pa5μm) kuti uvandudze mashandiro ekudzivirira kupisa; dzora kuchena kwefirimu re dielectric panguva yekugadzira kudzivirira kusvibiswa kunokonzera kuwanda kwemagetsi anobuda; pukuta capacitor core usati waisa mupurasitiki kuti ubvise hunyoro hwemukati uye uderedze kuwanda kwemagetsi kunokonzereswa nehunyoro.
Rudzi rweMubvunzo: Kusimbiswa kweKuvimbika
Mubvunzo: Mune sisitimu ye800V, ungasimbisa sei kuvimbika kwenguva refu kwemacapacitor eDC-Link, kunyanya hupenyu hwawo pasi pekumanikidzwa kwemagetsi akawanda?
A: Kusimbiswa kwekuvimbika kunoda musanganiswa wekuyedza kwekukurumidza kwehupenyu uye simulation yemamiriro ekushanda chaiwo. Chekutanga, ita bvunzo dze high-voltage stress: ita bvunzo dzenguva refu dzekukwegura (semuenzaniso, maawa 1000) pa1.2-1.5 kakapetwa voltage yakayerwa, uchitarisa capacitance drift, kuwedzera kweESR, uye shanduko dzemagetsi anobuda. Chechipiri, shandisa Arrhenius model yekuyedza kwekupisa nekukurumidza, uchiongorora hunhu hwehupenyu pakupisa kwakanyanya (semuenzaniso, 85℃ kana 105℃) kuti uongorore hupenyu hwemuviri pasi pemamiriro chaiwo ekushanda. Panguva imwe chete, simbisa kugadzikana kwechimiro kuburikidza nekuyedza vibration uye mechanical shock.
Rudzi rweMubvunzo: Kuenzanisa Zvinhu
Mubvunzo: Mumidziyo yeSiC inoshanda pamafrequencies akakwira (≥20kHz), macapacitor eDC-Link anogona sei kuenzana neESR yakaderera nezvinodiwa zvemagetsi anomira zvakanyanya? Zvinhu zvechinyakare zvinowanzopa gakava: "ESR yakaderera inokonzera voltage isina kukwana, nepo voltage inomira yakawanda inotungamira kuESR yakawandisa."
A: Isa zvinhu zvemafirimu epolypropylene (PP) kana polyimide (PI) zvakakosheswa pakutanga, sezvo zvichipa simba guru re dielectric uye kurasikirwa kwakaderera kwe dielectric. Ma electrode anoshandisa dhizaini ye "thin metal layer + multi-electrode partitioning" kuderedza ganda uye kuderedza ESR. Muchimiro, nzira yekumonera yakakamurwa inoshandiswa, ichiwedzera insulating layer pakati pe electrode layers kuti ivandudze kumira kwemagetsi uku ichidzora ESR iri pasi pe5mΩ.
Rudzi rweMubvunzo: Saizi uye Mashandiro
Mubvunzo: Pakusarudza macapacitor eDC-Link e800V emagetsi anofambisa magetsi, zvakakosha kusangana nezvinodiwa zvekutora ma ripple ari pamusoro pe20kHz, nepo nzvimbo yePCB ichingobvumira saizi yekuiswa ye ≤50mm×25mm×30mm. Nzira yekuenzanisa mashandiro nemiganhu yehukuru?
A: Isa pamberi macapacitor epolypropylene film capacitors ane metallized, ayo anopa ESR yakaderera uye frequency yakakwira. Nekugadzirisa chimiro chemukati che capacitor uye kushandisa zvinhu zvitete zve dielectric, huwandu hwe capacitance hunowedzerwa. Kurongeka kwePCB kunopfupisa daro riri pakati pe capacitor leads nezvishandiso zvemagetsi, zvichideredza inductance yeparasitic uye kudzivirira kushaya simba muhukuru kana kushanda kwefrequency yakakwira nekuda kwekushomeka kwe layout.
Rudzi rweMubvunzo: Kudzora Mutengo
Mubvunzo: Puratifomu ye800V inotarisana nematambudziko makuru emari. Tingadzora sei mari yekusarudza nekugadzira macapacitor eDC-Link uku tichiona kuti ESR yakaderera uye hupenyu hurefu?
A: Sarudza ma capacitor zvichienderana nezvinodiwa chaizvo, uchidzivisa kutsvaga ma parameter akawanda (semuenzaniso, 20% ripple current redundancy reserve yakakwana; kuwedzera kwakanyanya hakuna kukosha); shandisa hybrid configuration ye "high-specific core filtering area + standard-specific assistant area," uchishandisa low-ESR film capacitors munzvimbo yepakati uye polymer aluminium electrolytic capacitors yakaderera munzvimbo yekubatsira; gadzirisa supply chain nekuderedza mutengo weyuniti yema capacitor ega ega kuburikidza nekutenga zvakawanda; kurerutsa chimiro chekuisa capacitor nekushandisa plug-in type panzvimbo pe soldering type kuderedza mari yekugadzirira assembly.
Rudzi rweMubvunzo: Kufananidza Nguva Yehupenyu
Mubvunzo: Sisitimu yemagetsi inoda hupenyu hwemakore ≥10 / makiromita 200,000. DC-Link capacitors inokurumidza kukwegura kana ichipisa zvakanyanya uye ine frequency stress. Tingaenzanisa sei hupenyu hwesisitimu?
A: Dhizaini yekudzima magetsi yashandiswa. Voltage yakayerwa ye capacitor inosarudzwa ne1.2-1.5 yakapetwa kupfuura voltage yepamusoro yesystem, uye rated ripple current inosarudzwa ne1.3 yakapetwa kupfuura voltage chaiyo yekushanda. Zvinhu zvinorasikirwa zvishoma zvine dielectric loss factor (tanδ) ≤0.001 zvinosarudzwa. Sensor yekupisa inoiswa pedyo ne capacitor. Kana tembiricha yadarika threshold, dziviriro yekudzima magetsi yesystem inotangwa kuti iwedzere hupenyu hwe capacitor.
Rudzi rweMubvunzo: Kurongedza Kupisa Kunoparadza
Mubvunzo: Pasi pe800V high-voltage conditions, voltage yekupwanyika kwezvinhu zveDC-Link capacitor packaging haina kukwana. Panguva imwe chete, kushanda zvakanaka kwekupisa kunofanirwa kufungwa. Mhinduro yekurongedza inofanira kusarudzwa sei?
A: Chigadziko chepurasitiki chakasimba chinodzivisa magetsi akawanda (voltage inoputsika ≥1500V) chinosarudzwa segoko. Chimiro chekurongedza chakagadzirwa sechimiro che "shell + insulating coating + thermally conductive silicone". Ukobvu hwe insulating coating hunodzorwa pa 0.5-1mm, uye silicone inofambisa magetsi inozadza mukaha uri pakati pegoko ne capacitor core. Migero yekurasa kupisa yakagadzirwa pamusoro pegoko kuti iwedzere nzvimbo yekurasa kupisa.
Rudzi rweMubvunzo: Kuvandudza Kuwanda kweSimba
Mubvunzo: Ma capacitor emafirimu ane simba shoma remagetsi kupfuura ma capacitor e aluminium electrolytic, izvo zvinokanganisa mapuratifomu e 800V compact. Kunze kwekushandisa voltage yakakwira kuderedza zvinodiwa zve capacitance, ndedzipi nzira dzakananga dzinogona kutsiva dambudziko iri?
A: 1. Shandisa firimu re polypropylene rakagadzirwa nesimbi + nzira itsva yekumonera kuti uvandudze kushanda zvakanaka pahuwandu hweyuniti;
2. Batanidza macapacitor akawanda emafirimu ane simba diki kuti aenderane nemidziyo yeSiC uye zvive nyore kuronga;
3. Batanidza nemamodule emagetsi nemabusbars, uchigadzirisa zviyero zvakanyatsonaka;
4. Shandisa zvakare ESR yakaderera uye hunhu hwema frequency akakwira kuti uderedze zvikamu zvekubatsira.
Rudzi rweMubvunzo: Kururamisa Mutengo
Mubvunzo: Mumapurojekiti e800V evatengi vanokoshesa mutengo, tingaratidza sei zvine musoro uye zvinogutsa kuti "mutengo wehupenyu" hwemacapacitor efirimu wakaderera pane wearuminiyamu electrolytic capacitors?
A: 1. Hupenyu hunopfuura maawa 100,000 (aruminiyamu electrolytic capacitors maawa 2,000-6,000 chete), zvichibvisa kudiwa kwekutsiviwa kakawanda;
2. Kuvimbika kwakanyanya, kuderedza kurasikirwa kwekugadzirisa uye kurasikirwa nenguva yekuzorora;
3. 60% saizi diki, zvichichengetedza mari yePCB nekugadzira zvivakwa uye yekugadzira;
4. Kuvandudzwa kweESR yakaderera + 1.5%, zvichideredza kushandiswa kwesimba.
Rudzi rweMubvunzo: Kuenzanisa Nzira Yekuzvirapa
Mubvunzo: "Kuzviporesa" kwearuminiyamu electrolytic capacitors kunoreva kuora kwe capacitance zvachose mushure mekuputsika, nepo ma film capacitors achizivisawo "kuzviporesa." Ndeipi misiyano yakakosha mumaitiro avo ekuzviporesa uye mhedzisiro? Izvi zvinorevei pakuvimbika kwesystem?
A: 1. Misiyano mikuru muNzira dzeKuzvirapa
MaCapacitors eFirimu: Kana firimu repolypropylene rakaiswa simbi rikapwanyika munzvimbo iyoyo, electrode metal layer inopwanyika ipapo ipapo, zvichiita nzvimbo inodzivira pasina kukuvadza chimiro che dielectric.
Macapacitor eAluminium Electrolytic: Mushure mekunge firimu reoxide raputsika, electrolyte inoedza kugadzirisa asi inooma zvishoma nezvishoma, isingakwanise kudzoreredza mashandiro ekutanga e dielectric; iyi inzira yekugadzirisa isingashande, inodyiwa.
2. Kusiyana kweMigumisiro yeKuzvirapa
Ma capacitor efirimu: Kugona kwemuchina hakuchinji zvachose, zvichichengetedza hunhu hwepakati hwekushanda senge ESR yakaderera uye frequency yakakwira ye resonant.
Macapacitor emagetsi ealuminium: Kugona kwemagetsi kunodzikira zvachose mushure mekuzviporesa, ESR inowedzera, mhinduro yefrequency inoderera, uye njodzi yekukundikana inoungana.
3. Kukosha kweKuvimbika kweSisitimu
Ma capacitor emafirimu: Kushanda zvakanaka kunogadzikana mushure mekuzviporesa, hakudi nguva yekuzorora kuti utsive, kuchengetedza kushanda zvakanaka kwesystem kwenguva refu, kusangana nezvinodiwa zve high-frequency, high-voltage zvepuratifomu ye800V.
Macapacitor emagetsi ealuminium: Kuora kwemagetsi akawandisa kunotungamira nyore nyore mukukwira kwemagetsi uye kudzikira kwekushanda zvakanaka, zvichikonzera kutadza kushanda kwesystem uye kuwedzera njodzi dzekugadzirisa uye dzenguva yekushanda.
Rudzi rweMubvunzo: Nzvimbo Yekukwidziridza Brand
Mubvunzo: Sei mamwe marudzi achisimbisa kushandiswa kwe "film capacitors" mumotokari dze800V?
A: Muchina uyu unonyanya kusimbisa kushandiswa kwema capacitor emafirimu muzvishandiso zvemotokari zve800V. Zvakanakira zvikuru ndezvekuti ESR yavo yakaderera (inodarika 95% yekudzikiswa), frequency yakakwira ye resonant (≈40kHz) yakakodzera zvinodiwa ne high-frequency, high-voltage ye800V+SiC, uye hupenyu hwenguva inodarika maawa 100,000 (inodarika maawa 2000-6000 e aluminium electrolytic capacitors). Anozvirapa ega uye haaderedzi, achichengetedza 60% muhuwandu uye anopfuura 50% munzvimbo yePCB, zvichivandudza kushanda kwesystem ne1.5%. Izvi zvese zviri zviviri zvinhu zvakakosha zvetekinoroji uye zvakanakira makwikwi.
Rudzi rweMubvunzo: Kuenzanisa Kwehuwandu Hwekukwira Kwetembiricha
Mubvunzo: Ndapota verenga uye enzanisai kukosha kweESR kwemafirimu capacitors nemaaluminium electrolytic capacitors pa125°C ne100kHz, uye kukanganisa kwemusiyano uyu wekuwedzera kwekushisa kunokonzerwa neESR pahurongwa.
A: Mhedziso Yekutanga: Pa 125°C/100kHz, ESR yemacapacitor efirimu inenge iri 1-5mΩ, nepo yearuminiyamu electrolytic capacitors inenge iri 30-80mΩ. Yekutanga inowana kukwira kwetembiricha kwe5-10°C chete, nepo yekupedzisira ichisvika 25-40°C, zvichikanganisa zvakanyanya kuvimbika kwesystem, kushanda zvakanaka, uye mari yekupisa.
1. Kuenzanisa Data reHuwandu
Ma capacitor efirimu: ESR iri muhuwandu hwe milliohm (1-5mΩ), kukwira kwetembiricha kunodzorwa pa 5-10°C pa 125°C/100kHz.
Macapacitor emagetsi ealuminium: ESR iri muhuwandu hwemakumi emamiriyoni (30-80mΩ), kukwira kwetembiricha kusvika 25-40°C pasi pemamiriro akafanana ekushanda.
2. Kukanganisa Kukwira Kwekupisa Pamusana Pemaitiro Emuviri
Kukwira kwakanyanya kwekushisa muma capacitor e aluminium electrolytic kunokurumidza kuoma kwema electrolyte, zvichideredza hupenyu hwema electrolyte ne30%-50% zvichienzaniswa netembiricha yemumba, zvichiwedzera njodzi yekukundikana kwesystem.
ESR yakakwira inotungamira mukurasikirwa kunoderedza kushanda zvakanaka kwesystem ne2%-3%, zvichida mamwe mamodule ekupisa, ayo anotora nzvimbo uye anowedzera mari. Ma capacitor efirimu ane tembiricha yakaderera uye haadi kupisa kwakawedzerwa. Akakodzera mamiriro ekushanda e800V high-frequency, ane kugadzikana kwakasimba kwenguva refu kwekushanda, uye anoderedza zvinodiwa pakugadzirisa.
Rudzi rweMubvunzo: Kukanganiswa kweRange
Mubvunzo: Pamotokari itsva dzemagetsi dze800V high-voltage platform, mhando yeDC-Link capacitor inokanganisa zvakananga mafambiro ezuva nezuva here? Ndeapi musiyano chaiwo unogona kuonekwa?
A: Zvinokanganisa zvakananga nzvimbo. Hunhu hwakaderera hweESR hweDC-Link capacitor hunoderedza kurasikirwa kwekuchinja kwema frequency akawanda, zvichivandudza kushanda zvakanaka kwesystem yemagetsi uye zvichikonzera nzvimbo chaiyo yakasimba. Nesimba rakafanana, capacitor yemhando yepamusoro inogona kuwedzera nzvimbo ne1%-2%, uye kudzikira kwenzvimbo kunononoka panguva yekutyaira nekukurumidza uye kumhanyisa kakawanda. Kana mashandiro e capacitor asina kukwana, ichapedza simba nekuda kwekuwedzera kwemagetsi, zvichikonzera kuratidzwa kwenhema kwenzvimbo yakashambadzirwa.
Rudzi rweMubvunzo: Kuchengetedzwa kwekuchaja
Mubvunzo: Mamodheru e800V anoshambadza kumhanya kwekuchaja nekukurumidza. Izvi zvine chekuita neDC-Link capacitor here? Pane njodzi dzekuchengetedza dzinoenderana necapacitor panguva yekuchaja here?
A: Pane kubatana, asi hapana chikonzero chekunetseka nezvenjodzi dzekuchengetedza. Macapacitor eDC-Link emhando yepamusoro anogona kukurumidza kupinza simba remagetsi rinotenderera panguva yekuchaja, zvichidzikamisa voltage yebhazi uye kudzivirira kushanduka kwemagetsi kuti kusakanganisa simba rekuchaja, zvichikonzera kuchaja kwakanyatsogadzikana uye kwakasimba. Macapacitor anoenderana akagadzirwa ane simba remagetsi rinokwanisa kutsungirira voltage kanenge ka1.2 pane voltage yesystem uye ane hunhu hwemagetsi anodonha zvishoma, zvichidzivirira matambudziko ekuchengetedza akadai sekubuda kwemvura nekuputsika panguva yekuchaja. Vagadziri vemotokari vanosanganisirawo nzira dzekudzivirira overvoltage kuti dzidzivirire kaviri.
Rudzi rweMubvunzo: Kushanda Pakupisa Kwakanyanya
Mubvunzo: Simba remota ye800V richadzikira here mushure mekusangana nekupisa kwakanyanya muzhizha? Izvi zvine chekuita nekudzivirira kupisa kweDC-Link capacitor here?
A: Simba risina simba rinogona kunge rakabatana nekusagona kupisa kwe capacitor. Kana kusagona kupisa kwe capacitor kusina kukwana, ESR ichawedzera zvakanyanya pakupisa kwakanyanya, zvichikonzera kuwedzera kwekushanduka kwemagetsi ebhazi. Sisitimu iyi inoderedza mutoro otomatiki semudziyo wekudzivirira, zvichikonzera simba risina simba. Ma capacitor emhando yepamusoro anogona kushanda zvakatsiga kwenguva yakareba munzvimbo dziri pamusoro pe85℃, neESR shoma pakupisa kwakanyanya, zvichiita kuti simba ribude harikanganisike nekupisa uye kuchengetedza kushanda kwakajairika kwekumhanya kunyangwe mushure mekusangana nekupisa kwakanyanya.
Rudzi rweMubvunzo: Kuongorora Kukwegura
Mubvunzo: Mota yangu ye800V yave ichishandiswa kwemakore matatu, uye munguva pfupi yapfuura kumhanya kwekuchaja kwadzikira uye huwandu hwayo hwadzikira. Izvi zvinokonzerwa nekukwegura kweDC-Link capacitor here? Ndingaziva sei izvi?
A: Zvingangodaro zvine chekuita nekukwegura kwecapacitor. DC-Link capacitors dzine hupenyu hwakatarwa. Macapacitor asina simba anogona kuratidza kukwegura kwe dielectric mushure memakore 2-3, zvichiratidza kudzikira kwekugona kwe ripple current absorption uye kuwedzera kurasikirwa, zvichikonzera kudzikira kwekugona kuchaja uye kupfupika kwenzvimbo. Kuongorora kuri nyore: tarisa kana paine "kusvetuka kwesimba" kakawanda panguva yekuchaja, kana kuti huwandu hwekuchaja hwakazara huri pasi pe10% pane mota yaive itsva. Mushure mekuramba kuora kwebhatiri, zvinogona kugumiswa kuti mashandiro ecapacitor aderera.
Rudzi rweDambudziko: Kunyorova kweTembiricha Yakaderera
Mubvunzo: Munzvimbo dzechando dzine tembiricha yakaderera, kupfava kwekutanga nekutyaira kwemotokari ye800V kuchakanganiswa here neDC-Link capacitor?
A: Ehe, zvichakanganisa. Kupisa kwakaderera kunogona kuchinja kwenguva pfupi hunhu hwe dielectric hwema capacitor. Kana frequency ye resonant ye capacitor yakaderera zvakanyanya, inogona kukonzera kudedera kwemota uye kunonoka kutanga panguva yekutanga nekuti haigone kuenderana nehunhu hwe high-frequency hwezvishandiso zveSiC. Ma capacitor emhando yepamusoro anogona kusvika ku resonant frequency yemakumi e kHz, zvichiratidza kushanduka kudiki kwekushanda patembiricha yakaderera, zvichikonzera kuendesa simba zvakanaka panguva yekutanga uye pasina kuzununguka panguva yekutyaira nekukurumidza.
Rudzi rweMubvunzo: Yambiro yeMhosva
Mubvunzo: Mota ichapihwa yambiro dzipi kana DC-Link capacitor ikakundikana? Ichangoerekana yaparara here?
A: Haizongoerekana yaparara; mota ichapa yambiro dzakajeka. Kana capacitor ikatadza kushanda, unogona kunzwa simba richinonoka, dzimwe nguva uchinzwa yambiro yekuti "Powertrain Fault" iri padashboard, uye kushaikwa kwekuchaja kakawanda. Sisitimu yekudzora mota inotarisa kugadzikana kwemagetsi ebhazi munguva chaiyo. Kana capacitor ikatadza kushanda zvakanaka ikakonzera kuchinja-chinja kwemagetsi zvakanyanya, inotanga yaderedza simba rinobuda (semuenzaniso, kuderedza kumhanya kwakanyanya) pane kungodzima injini pakarepo, zvichipa mushandisi nguva yakakwana yekusvika panzvimbo yekugadzirisa.
Rudzi rweMubvunzo: Mutengo wekugadzirisa
Mubvunzo: Ndakaudzwa panguva yekugadzirisa kuti DC-Link capacitor inofanira kutsiviwa. Mari yekutsiva yakakwira here? Ichada kupatsanura zvikamu zvakawanda, zvichikanganisa kuvimbika kwemotokari? Mhinduro: Mutengo wekutsiva wakaderera uye hauzokanganisi kuvimbika kunotevera. Macapacitor eDC-Link mumotokari dze800V anowanzo kuve magadzirirwo akabatanidzwa. Kunyange zvazvo mutengo wecapacitor imwe chete yepamusoro wakakwira kupfuura wecapacitor yenguva dzose, kutsiva kakawanda hakudiwi (hupenyu hunodarika makiromita 100,000). Kutsiva hakudi kupatsanura zvikamu zvepakati nekuti macapacitor emhando yepamusoro madiki (semuenzaniso, 50×25×30mm) ane dhizaini yePCB diki. Kuparadzanisa kunoda chete kubvisa imba yemagetsi inofambisa inverter. Mushure mekugadzirisa, kugadzirisa kunogona kuitwa zvichienderana nezvinodiwa zvefekitori yekutanga, pasina kukanganisa kuvimbika kwemotokari pakutanga.
Rudzi rweMubvunzo: Kudzora Ruzha
Mubvunzo: Sei dzimwe mota dze800V dzisina ruzha rwemagetsi pakumhanya kwakaderera, nepo dzimwe dziine ruzha rwakakosha? Izvi zvine chekuita neDC-Link capacitor here?
A: Ehe. Ruzha rwemazuva ano runonyanya kugadzirwa nesystem resonance. Kana frequency yeDC-Link capacitor iri pedyo nefrequency yekuchinja kwemota nekumhanya kwakaderera, inokonzera ruzha rwekupindura. Ma capacitor emhando yepamusoro akagadzirwa zvakanaka kudzivirira huwandu hwema frequency anoshandiswa zvakanyanya uye anogona kutora simba re resonant, zvichikonzera ruzha rushoma pakumhanya kwakaderera uye runyararo rwekabhini rwuri nani.
Rudzi rweMubvunzo: Dziviriro yeKushandiswa
Mubvunzo: Ndinowanzo tyaira nzendo refu nemota ye800V, ndichichaja nekukurumidza uye ndichimhanya zvakanyanya. Izvi zvichakurumidzisa kukwegura kweDC-Link capacitor here? Ndingaidzivirira sei?
A: Zvinokurumidza kukwegura, asi izvi zvinogona kudzikiswa nenzira dziri nyore. Kuchaja nekukurumidza nguva nenguva uye kufamba nekukurumidza kunoita kuti capacitor ishande zvakanaka kwenguva yakareba, zvichiita kuti ichembere nekukurumidza. Dziviriro iri nyore: dzivisa kuchaja nekukurumidza kana bhatiri riri pasi pe10% (kuderedza kushanduka kwemagetsi). Mumamiriro ekunze anopisa, mushure mekuchaja nekukurumidza, usamhanye kutyaira nekukurumidza; tyaira nekukurumidza kwemaminitsi gumi kutanga kuti tembiricha yecapacitor iderere zvishoma nezvishoma, izvo zvinogona kuwedzera hupenyu hwayo zvakanyanya.
Rudzi rweMubvunzo: Nguva Yehupenyu uye Waranti
Mubvunzo: Waranti yebhatiri yemotokari dze800V inowanzo kuve makore masere / makiromita 150,000. Hupenyu hweDC-Link capacitor hunogona here kuenderana newaranti yebhatiri? Zvakakosha here kuitsiva kana waranti yapera?
A: Capacitor yemhando yepamusoro inogona kuva nehupenyu hunoenderana kana kutopfuura waranti yebhatiri (kusvika makiromita 100,000 kana kupfuura). Kuitsiva mushure mekunge waranti yapera kuchiri kukosha. Mhando dze800V dzinoenderana nemutemo dzichashandisa macapacitor eDC-Link anorarama kwenguva refu. Mukushandiswa kwakajairika, hupenyu hwecapacitor hahuzove hwakaderera pane hupenyu hwebhatiri. Kunyangwe kana ichida kutsiviwa mushure mekunge waranti yapera, mutengo wekutsiva capacitor imwe chete ingori zviuru zvishoma zveyuan, izvo zvakaderera pane mutengo wekutsiva bhatiri. Uyezve, kutsiva kunogona kudzorera mota kuti ishande zvakanaka, kuchaja uye kushanda nesimba, zvichiita kuti ive nemutengo wakaderera.
Nguva yekutumira: Zvita-03-2025