Toddobaadkan waxaan dooneynaa inaan falanqeyno isticmaalka capacitors filimada halkii laga isticmaali lahaa capacitors electrolytic capacitors DC-link.Maqaalkan waxa loo qaybin doonaa laba qaybood.

Iyada oo la horumarinayo warshadaha tamarta cusub, tignoolajiyada isbeddelka ee hadda jira ayaa si caadi ah loo isticmaalaa si waafaqsan, iyo capacitors DC-Link ayaa si gaar ah muhiim u ah mid ka mid ah aaladaha muhiimka ah ee xulashada.The capacitors DC-Link in filtarrada DC guud ahaan u baahan tahay awood weyn, processing hadda sare iyo danab sare, iwm By barbar sifooyinka capacitors film iyo capacitors electrolytic iyo falanqaynta codsiyada la xiriira, warqad this soo gabagabeeyey in in designs wareeg ah u baahan danab hawlgalka sare. Dhaqdhaqaaq sare oo kacsan (Irms), shuruudaha korantada ee xad-dhaafka ah, rogidda danabka, qulqulka sare ee hadda (dV/dt) iyo nolol dheer.Iyada oo la horumarinayo tignoolajiyada kaydinta uumiga birta ah iyo tignoolajiyada capacitor filimada, capacitors filimku waxay noqon doonaan isbeddel loogu talagalay naqshadeeyayaasha si ay u beddelaan capacitors electrolytic marka la eego waxqabadka iyo qiimaha mustaqbalka.

Iyada oo la soo bandhigay siyaasado cusub oo la xidhiidha tamarta iyo horumarinta warshadaha tamarta cusub ee waddamo kala duwan, horumarinta warshadaha la xidhiidha goobtan ayaa keenay fursado cusub.Iyo capacitors, sida warshadaha wax soo saarka ee muhiimka ah ee la xidhiidha, waxay sidoo kale heleen fursado horumarineed oo cusub.Tamarta cusub iyo baabuurta tamarta cusub, capacitors waa qaybaha muhiimka ah ee kontoroolka tamarta, maaraynta awooda, beddelka tamarta iyo nidaamyada beddelka DC-AC ee go'aamiya nolosha beddelaha.Si kastaba ha ahaatee, inverter-ka, korontada DC waxaa loo isticmaalaa sida isha tamarta, kaas oo ku xiran beddelka iyada oo loo marayo baska DC, kaas oo loo yaqaan DC-Link ama taageerada DC.Maaddaama rogaal-geliyaha uu ka helo qulqulka garaaca wadnaha sare ee RMS iyo DC-Link, waxay ku dhalisaa korantada garaaca wadnaha sare ee DC-Link, taas oo adkeynaysa rogaha inuu u adkaysto.Sidaa darteed, capacitor-ka DC-Link ayaa loo baahan yahay si uu u nuugo garaaca garaaca wadnaha sare ee hadda jira ee DC-Link oo looga hortago isbeddelka korantada garaaca wadnaha sare ee inverter waa gudaha xadka la aqbali karo;Dhanka kale, waxa ay sidoo kale ka hortagtaa rogoyaasha in ay saameeyaan korontada xad-dhaafka ah iyo ku-meel-gaadhka-korka-dhaafka ah ee DC-Link.

Jaantuska jaantuska isticmaalka capacitors-ka DC-Link ee tamarta cusub (oo ay ku jiraan koronta dabaysha iyo soo saarista korantada tamarta) iyo hababka cusub ee wadista baabuurta tamarta ayaa lagu muujiyay jaantusyada 1 iyo 2.

Jaantuska 1 wuxuu muujinayaa wareegga wareegga wareegga awoodda dabaysha, halkaasoo C1 uu yahay DC-Link (guud ahaan isku dhafan moduleka), C2 waa nuugista IGBT, C3 waa shaandhaynta LC (dhinaca saafiga ah), iyo C4 rotor side DV/DT filter.Jaantuska 2 wuxuu muujinayaa tignoolajiyada wareegtada korantada ee PV, halka C1 ay tahay shaandhaynta DC, C2 waa shaandhaynta EMI, C4 waa DC-Link, C6 waa shaandhaynta LC (dhinaca grid), C3 waa shaandhaynta DC, iyo C5 waa nuugista IPM/IGBT.Jaantuska 3 wuxuu muujinayaa habka ugu muhiimsan ee wadista mootada nidaamka cusub ee baabuurta tamarta, halkaasoo C3 uu yahay DC-Link iyo C4 waa IGBT capacitor nuugista.

Codsiyada tamarta cusub ee kor ku xusan, DC-Link capacitors, oo ah qalab muhiim ah, ayaa looga baahan yahay kalsoonida sare iyo nolosha dheer ee nidaamyada tamarta dabaysha, nidaamyada korantada sawir-qaadista iyo hababka baabuurta tamarta cusub, sidaas darteed doorashadooda ayaa si gaar ah muhiim u ah.Kuwa soo socdaa waa isbarbardhigga sifooyinka fiilooyinka capacitors iyo capacitors electrolytic iyo falanqayntooda codsiga capacitor DC-Link.

1.Isbarbardhigga Feature

1.1 Capacitors filimada

Mabda'a tikniyoolajiyadda biraha filimka ayaa marka hore la soo bandhigay: lakab khafiif ah oo ku filan oo bir ah ayaa ku soo baxay dusha sare ee warbaahinta filimka khafiifka ah.Marka ay jirto cillad dhexdhexaad ah, lakabku wuxuu awood u leeyahay inuu uumi baxo oo sidaas darteed go'doomiyo meesha cilladaysan ee ilaalinta, dhacdo loo yaqaan is-bogsiin.

Jaantuska 4 wuxuu muujinayaa mabda'a daahan biraha, halkaas oo warbaahinta filimka khafiifka ah la sii daayay (corona of haddii kale) ka hor inta aan uumiga si molecules biraha u hoggaansamaan.Birta waxaa lagu soo daadiyaa iyadoo lagu milmo heerkul sare hoostiisa faakuumka (1400 ℃ ilaa 1600 ℃ aluminium iyo 400℃ ilaa 600℃ ee zinc), iyo uumiga birta oo isku urursan dusha filimka marka uu la kulmo filimka la qaboojiyey (heerkulka filimka qaboojinta -25 ℃ ilaa -35 ℃), sidaas darteed samaynta daahan bir ah.Horumarinta tiknoolijiyada birta ayaa wanaajisay xoogga dielectric ee filimka dielectric kasta dhumucdiisuna waxay tahay, iyo design of capacitor ee garaaca wadnaha ama codsiga dheecaanka tignoolajiyada qalalan waxay gaari kartaa 500V / µm, iyo design of capacitor ee codsiga filter DC gaari kartaa 250V. /µmCapacitor-ka DC-Link waxaa iska leh kan dambe, oo marka loo eego IEC61071 ee awoodda korantada codsiga korantada wuxuu u adkeysan karaa shoog koronto oo aad u daran, wuxuuna gaari karaa 2 jeer tamarta la qiimeeyay.

Sidaa darteed, isticmaaluhu wuxuu kaliya u baahan yahay inuu tixgeliyo tamarta la qiimeeyay ee loo baahan yahay naqshadooda.Capacitors filimaanta biraha leh waxay leeyihiin ESR hoose, taas oo u oggolaanaysa inay u adkeystaan ​​qulqulka qulqulka weyn;ESL-ka hoose waxa uu la kulmaa shuruudaha naqshadaynta inductance hoose ee rogayaasha waxana ay yaraynaysaa saamaynta oscillation ee beddelka wareegyada.

Tayada filimka dielectric, tayada daahan metallization, design capacitor iyo habka wax soo saarka ayaa go'aamiya sifooyinka is-bogsiinta ee capacitors biraha.Dielectric filimka loo isticmaalo capacitors DC-Link ee la soo saaray ayaa u badan filimka OPP.

Nuxurka cutubka 1.2 waxa lagu daabici doonaa maqaalka toddobaadka soo socda.