Direct tam sim no switching fais fab mov yog dav siv nyob rau hauv industrial teb.
Muaj ob qhov kev ntsuas ntawm DC fais fab mov: ib qho yog cov yam ntxwv Performance index, suav nrog kev tso cai nkag voltage, tso zis voltage, tso zis tam sim no thiab cov zis voltage hloov kho ntau yam; Lwm qhov yog qhov ntsuas tau zoo, uas yog siv los ntsuas qhov ruaj khov ntawm qhov tso zis DC voltage, suav nrog qhov ntsuas hluav taws xob ruaj khov (lossis qhov ntsuas qhov ntsuas hluav taws xob), cov zis tsis kam (lossis cov kev cai tam sim no) thiab ripple voltage (ib puag ncig thiab random drift).
Main Circuit Court tsim ntawm DC switching fais fab mov
Lub ntsiab Circuit Court ntawm DC switching fais fab mov yog siv los ua kom tiav DC-AC-DC hloov dua siab tshiab, thiab lub ntsiab Circuit Court ntawm lub system txais tag nrho-bridge DC-DC converter, raws li qhia nyob rau hauv daim duab 2. Lub hwj chim switching li siv nyob rau hauv no system yog IGBT modules ntawm BSM 50GB120DN2 series, thiab txhua lub module muaj ib nrab-choj qauv, yog li ob modules yuav tsum tau nyob rau hauv tag nrho-bridge system. Ib tug ceev freewheeling diode yog embedded nyob rau hauv txhua module.
DC switching fais fab mov tau siv dav hauv ntau qhov chaw ua haujlwm. Hauv kev tsim khoom lag luam (xws li vuam, electroplating lossis kev tswj ceev ntawm DC lub cev muaj zog, thiab lwm yam), xav tau ntau cov khoom siv hluav taws xob DC nrog kev hloov kho qhov hluav taws xob, thiab lawv feem ntau xav tau DC fais fab khoom siv nrog qhov yooj yim voltage tso zis hloov. Tam sim no, vim qhov zoo ntawm kev ua haujlwm siab thiab kev hloov pauv ntawm cov khoom siv hluav taws xob me me, cov khoom siv hluav taws xob ib txwm siv hluav taws xob thiab thyristor tswj fais fab mov tau maj mam hloov los ntawm DC switching tswj fais fab mov. Lub ntsiab tswj hom ntawm kev hloov fais fab mov yog siv mem tes dav modulation integrated circuit kom tso zis PWM mem tes thiab analog PID regulator los nqa tawm pulse dav modulation. Hom kev tswj no muaj qee qhov yuam kev thiab lub Circuit Court yog qhov nyuaj dua.
txoj cai ntawm kev ua haujlwm
DC switching fais fab mov muaj ib qho input, ib qho kev hloov hluav taws xob, ib qhov tso zis thiab ib feem tswj. Lub zog hloov dua siab tshiab ib feem yog lub hauv paus ntawm kev hloov hluav taws xob, uas ua rau kev sib tsoo ntau zaus ntawm DC tsis ruaj khov thiab ua tiav cov kev hloov pauv uas xav tau rau cov zis. Nws yog tsim los ntawm kev hloov triode thiab siab zaus transformer. Daim duab 1 qhia txog daim duab schematic thiab qhov sib npaug ntawm daim duab thaiv ntawm DC switching fais fab mov, uas yog tsim los ntawm tag nrho-yoj rectifier, hloov raj V, excitation teeb liab, dawb-log diode Vp, lub zog cia inductor thiab lim capacitor C. Qhov tseeb, lub Lub hauv paus ntawm DC switching fais fab mov yog DC transformer.
