Kunzwisisa mutsauko uripo pakati pekupokana kwemukati uye impedance kwakakosha kune chero munhu anoshanda neUPS mabhatiri, BMS masisitimu, kana magetsi emagetsi. Kunyange zvichiwanzo shandiswa zvakasiyana, zvinomiririra zvakasiyana-siyana zvemagetsi zvivakwa - imwe yeDC maseketi, imwe yeAC. Gwaro iri rinopa kuenzanisa kwakajeka, kwehunyanzvi nezvinobatika pakutarisisa bhatiri.
Kupikisa kwemukati kupikisa kuyerera kwezvino mukati mebhatiri kana yakananga ikozvino (DC) yaiswa. Iyo inomuka kubva mukupokana kwe electrolyte, electrodes, uye mukati makabatana. Kupikisa kwemukati inhamba chaiyo (semuenzaniso, 5.3 mΩ) uye haishanduki nehuwandu. Icho chimwe chezviratidzo zvakakosha zvehutano hwebheteri - kuwedzera kwekupikisa kwemukati kunowanzoratidza sulfation, grid corrosion, kana kurasikirwa kwemasimba.
Impedance ndiyo inopikisa chose kune alternating current (AC) mudunhu. Inosanganisira zvose kuramba (chaiyo chikamu) uye reactance (yekufungidzira chikamu, kubva capacitance uye inductance). Impedance inotsamira kakawanda uye inoratidzwa senhamba yakaoma (R + jX). Mukutarisa bhatiri, zviyero zve AC impedance inoshandiswa kuongorora maitiro emukati pasina kuburitsa bhatiri.
Tafura 1: Misiyano yakakosha pakati pekupikiswa kwemukati (DC) uye impedance (AC) muinjiniya yemagetsi.
| Chikamu cheMagetsi Emidziyo | Yemukati Resistance (R) | Impedance (Z) |
|---|---|---|
| Circuit Application | Inoshandiswa zvakanyanya mumaseketi anoshanda pane yakananga ikozvino (DC). | Inonyanya kushandiswa mumaseketi akagadzirirwa alternating current (AC). |
| Circuit Presence | Inoonekwa mune ese ari maviri alternating ikozvino (AC) uye yakananga ikozvino (DC) maseketi. | Yakasarudzika kune alternating ikozvino (AC) maseketi, asipo muDC. |
| Origin | Inobva kuzvinhu zvinotadzisa kufamba kwemagetsi. | Inosimuka kubva mukusanganiswa kwezvinhu zvinopikisa uye zvinopindirana nemagetsi emagetsi. |
| Numerical Expression | Inoratidzwa uchishandisa nhamba chaidzo dzechokwadi, semuenzaniso, 5.3 mΩ. | Inoratidzwa kuburikidza nenhamba chaidzo uye zvikamu zvekufungidzira, zvinoratidzwa neR + jX. |
| Frequency Dependence | Kukosha kwayo kunoramba kuripo zvisinei nekuwanda kweiyo DC ikozvino. | Kukosha kwayo kunochinja nekuchinja kweiyo AC ikozvino. |
| Phase Characteristic | Hairatidze chero chikamu chekona kana hukuru hunhu. | Inoratidzwa nezvose zviri zviviri definitive phase angle uye ukuru. |
| Maitiro muElectromagnetic Field | Inongotaridza kupera kwesimba kana yakafumurwa kumunda wemagetsi. | Inoratidza kuparara kwesimba uye kugona kuchengetedza simba mundima yemagetsi. |
Mumazuva ano Battery Management Systems (BMS), zvese zvemukati kuramba uye impedance inotariswa kuti ivake mufananidzo wakazara wehutano hwebhatiri. Kukwira kwemukati kuramba ndiyo yambiro yekutanga yekudzikira, nepo impedance spectroscopy inogona kuratidza shanduko yemakemikari yemukati. DFUN BMS inoshandisa nzira dzekuyera AC chaiyo kuronda maitiro emukati ekuramba uye kuona zvinokanganisa zvisati zvakonzera kukundikana.
DFUN's BMS inoshandisa yakagadziriswa-frequency AC ikozvino kune yega bhatiri sero uye inoyera inokonzeresa kudonha kwevoltage. Iko kupikisa kwemukati kunoverengwa uchishandisa mutemo weOhm, nekururama kwe ± 1-2%. Iyi nzira haina-invasive, haidi kubvisa bhatiri, uye inopa chaiyo-nguva data yekufembera kugadzirisa.
Internal resistance (R) inzvimbo yeDC inopikisa kuyerera kwazvino, ukuwo impedance (Z) iri AC midziyo inosanganisira zvese kuramba uye kuita.
Kukwira kwemukati kuramba ndechimwe chezviratidzo zvekutanga zvekuderera kwebhatiri, sulfation, uye kurasikirwa kwesimba.
DFUN BMS inoshandisa yakagadziriswa-frequency AC yazvino jekiseni nzira kuyera kuramba kwemukati ne 1-2% nemazvo, pasina kukanganisa kushanda kwebhatiri.
