Nekuwedzera kwedambudziko resimba, kupera kwezviwanikwa uye kusvibiswa kwemhepo, China yakagadzira mota dzemagetsi matsva seindasitiri iri kusimukira.Sechikamu chakakosha chemotokari dzemagetsi, majaja emota ane zvese theoretical yekutsvagisa kukosha uye kukosha kweinjiniya yekushandisa.FIG.1 inoratidza dhizaini yedhizaini yechaja yemotokari nemusanganiswa wepamberi STAGE AC/DC uye yekumashure nhanho DC/DC.
Kana iyo car charger yakabatana kune gidhi remagetsi, inoburitsa mamwe maharmonics, inosvibisa gidhi remagetsi, uye inokanganisa kugadzikana kwemidziyo yemagetsi.Kuitira kudzikisira huwandu hwemaharmonics, International Electrotechnical Commission yakagadzira harmonic limit standard iec61000-3-2 yemidziyo yemagetsi, uye China yakapawo iyo NATIONAL standard GB/T17625.Kuti uenderane nezviyero zviri pamusoro, majaja ari pabhodhi anofanirwa kuita simba rekugadzirisa zvinhu (PFC).PFC AC/DC inoshandura inopa simba kuseri kweDC/DC system kune rumwe rutivi, uye ebetsero magetsi kune rimwe divi.Dhizaini yePFC AC/DC inoshandura inokanganisa zvakananga kuita kwechaja yemotokari.
Tichitarisa vhoriyamu uye maharmonics emagetsi emagetsi majaja ane hasha zvinodiwa, dhizaini iyi inoshandisa tekinoroji inoshanda simba rekugadzirisa (APFC).APFC ine dzakasiyana siyana dzetopology.Iyo Boost topology ine zvakanakira dhiraivha yekutyaira yakapusa, yakakwira PF kukosha uye yakakosha control chip, saka iyo huru yedunhu reBoost topology inosarudzwa.Tichifunga dzakasiyana nzira dzekutanga dzekudzora nzira, avhareji yazvino yekudzora nzira ine zvakanakira yakaderera harmonic kukanganisa, kusanzwa kune ruzha uye yakagadziriswa switching frequency inosarudzwa.
Ichi chinyorwa tichitarisa simba re2 kW ese-yemagetsi mota charger, tichifunga nezve harmonic zvirimo, vhoriyamu uye anti-jamming kuita dhizaini zvinodiwa, iyo yakakosha tsvagiridzo PFC AC/DC inoshandura, ine iyo system main circuit uye control circuit dhizaini, uye pahwaro hwechidzidzo, mukudzidza kwesystem simulation uye bvunzo dzekuyedza simbisa
2 PFC AC/DC inoshandura dhizaini huru
Iyo huru yedunhu rePFC AC/DC inoshandura inoumbwa neinobuda sefa capacitor, switching mudziyo, boost inductor uye zvimwe zvikamu, uye ma paramita ayo akagadzirwa seinotevera.
2.1 Kubuda kwesefa capacitance
Iyo inobuda sefa capacitor inogona kusefa iyo inobuda voltage ripple inokonzerwa nekuchinja chiito uye kuchengetedza inobuda voltage mune imwe nhanho.Iyo yakasarudzwa mudziyo unofanirwa kuona zviri nani mabasa maviri ari pamusoro.
Saiti yekudzora inotora kaviri yakavharwa-loop chimiro: iyo yekunze loop ndeye voltage loop uye yemukati loop ndeye yazvino loop.Iyo yazvino loop inodzora yekupinda ikozvino yedunhu guru uye inoteedzera referensi ikozvino kuti uwane simba rekugadzirisa zvinhu.Iyo yakabuda voltage yevoltage loop uye inobuda referensi voltage inofananidzwa nevolti kukanganisa amplifier.Iyo inobuda chiratidzo, iyo feedforward voltage uye yekupinda voltage inoverengerwa neawandisa kuti awane yekupinza referensi yezvino loop.Nekugadzirisa iyo loop yazvino, chiratidzo chekutyaira cheiyo main circuit switch chubhu inogadzirwa kuti iwane iyo simba factor kururamisa system uye inoburitsa yakagadzikana DC voltage.Iyo yekuwedzeredza inonyanya kushandiswa pakuwedzera chiratidzo.Pano, bepa iri rinotarisa pane dhizaini yevoltage loop uye yazvino loop.
Nguva yekutumira: Jun-20-2022