dcxp
-
為什么FPV電池爆發力這么強勁？
2024/10/11
在無人(ren)機競速與(yu)第一(yi)人(ren)稱視角(FPV)飛行(xing)的(de)世界里(li)，每一(yi)毫秒的(de)響應速度、每一(yi)次精準(zhun)的(de)控制操作(zuo)，都是決定勝負(fu)的(de)關(guan)鍵。而在這場速度與(yu)激情(qing)的(de)較量中，FPV電(dian)池作(zuo)為...
news
-
電池監測分流器是什么？有哪些功能？
2025/02/11
第(di)一：電池監測分流器簡介(jie) 隨(sui)著(zhu)能(neng)(neng)源(yuan)系統(tong)變得越來越復雜(za)精密(mi)，對精確的(de)電池監測的(de)需求比以往任何時候都更(geng)為(wei)迫切。無論是在可再生(sheng)能(neng)(neng)源(yuan)系統(tong)、電動(dong)汽車(EVs)、工(gong)...
電池保護板主動均衡電路思考
下圖用的磷酸鐵鋰動力電池組的電池保護板主動均衡充電系統拓撲圖。電池保護板主動均衡是相對于被動均衡而言的一種均衡方式，究其定義而言，指的是利用主動元件實現電池組容量均衡的方式。
系統主要(yao)由(you)單(dan)體(ti)電(dian)(dian)(dian)池(chi)(chi)(chi)保護(hu)板管理電(dian)(dian)(dian)路(lu)與(yu)整車控制器(qi)組成，單(dan)體(ti)電(dian)(dian)(dian)池(chi)(chi)(chi)管理電(dian)(dian)(dian)路(lu)由(you)單(dan)體(ti)電(dian)(dian)(dian)池(chi)(chi)(chi)檢(jian)測單(dan)元(yuan)(yuan)和(he)單(dan)體(ti)電(dian)(dian)(dian)池(chi)(chi)(chi)均衡充(chong)(chong)電(dian)(dian)(dian)單(dan)元(yuan)(yuan)構成，檢(jian)測單(dan)元(yuan)(yuan)采用基于自(zi)適(shi)應Kalman濾波算法計算單(dan)體(ti)電(dian)(dian)(dian)池(chi)(chi)(chi)sOC，均衡充(chong)(chong)電(dian)(dian)(dian)單(dan)元(yuan)(yuan)采用反激變換(huan)器(qi)實現由(you)電(dian)(dian)(dian)池(chi)(chi)(chi)組整體(ti)向單(dan)體(ti)SOC較低的電(dian)(dian)(dian)池(chi)(chi)(chi)進(jin)行(xing)補(bu)充(chong)(chong)電(dian)(dian)(dian)，從而實現各單(dan)體(ti)電(dian)(dian)(dian)池(chi)(chi)(chi)SOC在可控制范圍內的一致。
各單(dan)體(ti)(ti)(ti)電(dian)(dian)(dian)池(chi)管(guan)理電(dian)(dian)(dian)路(lu)(lu)之間(jian)的(de)通(tong)信方式采用的(de)是CAN總線(xian)通(tong)信，單(dan)體(ti)(ti)(ti)電(dian)(dian)(dian)池(chi)管(guan)理電(dian)(dian)(dian)路(lu)(lu)與整車控(kong)制器之間(jian)是通(tong)過(guo)CAN-USB總線(xian)適配(pei)器實現通(tong)信。整車控(kong)制器通(tong)過(guo)USB-CAN總線(xian)適配(pei)器與單(dan)體(ti)(ti)(ti)電(dian)(dian)(dian)池(chi)管(guan)理電(dian)(dian)(dian)路(lu)(lu)的(de)CAN總線(xian)相(xiang)連(lian)接，實現了(le)對(dui)單(dan)體(ti)(ti)(ti)電(dian)(dian)(dian)池(chi)管(guan)理電(dian)(dian)(dian)路(lu)(lu)信息的(de)發(fa)送和接收。通(tong)過(guo)采用CAN總線(xian)的(de)分(fen)布式結構，減(jian)少了(le)系(xi)統的(de)連(lian)線(xian)，便于系(xi)統安裝調試(shi)。
由n節單體(ti)電(dian)池管理(li)電(dian)路構成電(dian)池組(zu)管理(li)系(xi)統，如圖3.2所示(shi)，為當n=4時單體(ti)電(dian)池管理(li)電(dian)路與單體(ti)電(dian)池的連接線圖。
單(dan)體(ti)(ti)電(dian)(dian)池(chi)保護板管(guan)(guan)理(li)電(dian)(dian)路之(zhi)間采用CAN總線進(jin)行通信和連接(jie)(jie)，CAN總線由4根信號線組成，GND_CAN為外部供電(dian)(dian)接(jie)(jie)口地(di)線，CANL為CAN總線L信號，CANH為CAN總線H信號，+5VCAN為CAN模塊(kuai)(kuai)+5V電(dian)(dian)源外部供電(dian)(dian)接(jie)(jie)口。odd代表(biao)奇數(shu)模塊(kuai)(kuai)，even代表(biao)偶數(shu)模塊(kuai)(kuai)。單(dan)體(ti)(ti)電(dian)(dian)池(chi)管(guan)(guan)理(li)電(dian)(dian)路各自分別引出兩(liang)根線與單(dan)體(ti)(ti)電(dian)(dian)池(chi)相連接(jie)(jie)，從而(er)可實(shi)現隨時從單(dan)體(ti)(ti)電(dian)(dian)池(chi)上將單(dan)體(ti)(ti)電(dian)(dian)池(chi)管(guan)(guan)理(li)電(dian)(dian)路斷開。
