Nzvimbo yemotokari ndiyo imwe yenzvimbo dzakaomarara dzemagetsi. ZvanhasiEV majajamadhizaini anowedzera nemagetsi anonzwisisika, anosanganisira emagetsi ekudzora, infotainment, sensing, bhatiri mapaketi, manejimendi ebhatiri,electric mota point, uye machaja ari pabhodhi. Pamusoro pekupisa, magetsi emagetsi, uye kukanganiswa kwemagetsi (EMI) munzvimbo yemotokari, iyo-bhodhi charger inofanirwa kuenderana neiyo AC magetsi gidhi, inoda kuchengetedzwa kubva kune AC mutsetse kukanganisa kushanda kwakavimbika.
Vagadziri vechikamu chemazuva ano vanopa michina yakawanda yekuchengetedza maseketi emagetsi. Nekuda kwekubatanidza kune grid, pa-board charger dziviriro kubva kune voltage masurges uchishandisa akasiyana zvikamu zvakakosha.
Mhinduro yakasarudzika inosanganisa SIDACtor uye Varistor (SMD kana THT), inosvika yakaderera clamping voltage pasi peyakakwira surge pulse. Iyo SIDACtor + MOV musanganiswa inogonesa mainjiniya emotokari kukwidziridza kusarudzwa uye nekudaro, mutengo wemagetsi semiconductors mudhizaini. Zvikamu izvi zvinodiwa kushandura AC voltage kuita DC voltage kuchaja yemotokaripa-bhodhi bhatiri kuchaja.
Mufananidzo 1. Pa-Board Charger Block Diagram
The On-BoardCharger(OBC) iri panjodzi panguvaEV kuchajanekuda kwekuratidzwa kune overvoltage zviitiko zvinogona kuitika pamagetsi grid. Iyo dhizaini inofanirwa kuchengetedza magetsi semiconductors kubva kune overvoltage transients nekuti mavoltage ari pamusoro pemuganho wepamusoro anogona kuvakuvadza. Kuti uwedzere kuvimbika kweEV uye hupenyu hwese, mainjiniya anofanirwa kugadzirisa kuwedzera kudiwa kwazvino uye kudzikisa yakanyanya clamping voltage mumagadzirirwo avo.
Mienzaniso masosi enguva pfupi yekukwira kwemagetsi anosanganisira zvinotevera:
Kuchinja kwe capacitive mitoro
Kuchinja kwe low voltage systems uye resonant circuits
Maseketi mapfupi anobva pakuvaka, tsaona dzemotokari, kana madutu
Yakakonzeresa fuse uye overvoltage kudzivirira.
Figure 2. Recommended Circuit For Differential And Common Mode Transient Voltage Circuit Protection Uchishandisa MOVs Uye A GDT.
A 20mm MOV inosarudzwa kuti ivimbike zviri nani uye dziviriro. Iyo 20mm MOV inobata 45 pulses ye6kV/3kA surge ikozvino, iyo yakasimba zvakanyanya kupfuura 14mm MOV. Iyo 14mm disc inongokwanisa kubata kutenderedza gumi nemana masurges mukati mehupenyu hwayo.
Mufananidzo 3. Kurovera Kuita kweIdiki lnfuse V14P385AUTO MOV Under 2kV Uye 4kV Surges. Iyo Clamping Voltage Inopfuura 1000V.
Kusarudza kusarudza muenzaniso
Level 1 Charger-120VAC, single-phase circuit: The inotarisirwa ambient tembiricha i100°C.
Kuti udzidze zvakawanda nezve kushandisa SIDACt kana Dziviriro Thyristors mukatimotokari dzemagetsi, dhawunirodha Matorero eKusarudza Iyo Optimum Transient Surge Dziviriro yeEV On-Board Chargers application note, neruremekedzo rweLittle fuse, Inc.
Nguva yekutumira: Jan-18-2024