電池管理系統BMS
文章來源(yuan)：PNAS普納斯能(neng)源(yuan)官網(wang)
人(ren)氣：2752
發表時間：2017-10-23 18:04:06
【小中大】
電池管理系統（BATTERY MANAGEMENT SYSTEM））是電池與用戶之間的紐帶，主要對象是二次電池。
二次電池存在下面的一些缺點，如存儲能量少、壽命短、串并聯使用問題、使用安全性、電池電量估算困難等。電池的性能...
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電(dian)池管(guan)理(li)系統（BATTERY MANAGEMENT SYSTEM））是電(dian)池與用戶之間的紐(niu)帶，主要對(dui)象是二次電(dian)池。
二(er)次電池(chi)存在下面的一些缺(que)點，如存儲能量少、壽命(ming)短(duan)、串并(bing)聯使(shi)用問題、使(shi)用安全(quan)性(xing)、電池(chi)電量估算困難等(deng)。電池(chi)的性(xing)能是很復雜(za)的，不同類(lei)型的電池(chi)特(te)性(xing)亦相差很大。
電(dian)(dian)池(chi)(chi)管理系(xi)統（BMS）主要(yao)就(jiu)是為了能夠提高電(dian)(dian)池(chi)(chi)的利用率，防止電(dian)(dian)池(chi)(chi)出現過充電(dian)(dian)和過放電(dian)(dian)，延(yan)長電(dian)(dian)池(chi)(chi)的使用壽命(ming)，監(jian)控(kong)電(dian)(dian)池(chi)(chi)的狀態(tai)。隨著電(dian)(dian)池(chi)(chi)管理系(xi)統的發展(zhan)，也會增添(tian)其他的功能。
一般(ban)而言(yan)電(dian)(dian)動汽車電(dian)(dian)池(chi)管理系統要實現以下(xia)幾個(ge)功能：首(shou)先，準(zhun)確估測動力電(dian)(dian)池(chi)組的(de)荷電(dian)(dian)狀(zhuang)態(tai)，即電(dian)(dian)池(chi)剩(sheng)(sheng)余電(dian)(dian)量，保證SOC維持在合(he)理的(de)范圍內(nei)，防止由于過充電(dian)(dian)或(huo)過放電(dian)(dian)對電(dian)(dian)池(chi)的(de)損傷，從而隨時預報混合(he)動力汽車儲能電(dian)(dian)池(chi)還剩(sheng)(sheng)余多少(shao)能量或(huo)者儲能電(dian)(dian)池(chi)的(de)荷電(dian)(dian)狀(zhuang)態(tai)。
其次(ci)，動(dong)(dong)態(tai)監測動(dong)(dong)力電(dian)(dian)(dian)池(chi)(chi)(chi)組(zu)的工(gong)作狀態(tai)。在電(dian)(dian)(dian)池(chi)(chi)(chi)充(chong)放電(dian)(dian)(dian)過程(cheng)中，實時(shi)采集電(dian)(dian)(dian)動(dong)(dong)汽車蓄電(dian)(dian)(dian)池(chi)(chi)(chi)組(zu)中的每塊(kuai)電(dian)(dian)(dian)池(chi)(chi)(chi)的端電(dian)(dian)(dian)壓和溫(wen)度、充(chong)放電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)及電(dian)(dian)(dian)池(chi)(chi)(chi)包總電(dian)(dian)(dian)壓，防止(zhi)電(dian)(dian)(dian)池(chi)(chi)(chi)發生過充(chong)電(dian)(dian)(dian)或過放電(dian)(dian)(dian)現(xian)象。
同時(shi)能夠及時(shi)給出(chu)(chu)電(dian)(dian)池狀況，挑選(xuan)出(chu)(chu)有問題(ti)的(de)電(dian)(dian)池，保持整組(zu)電(dian)(dian)池運行的(de)可(ke)靠性和高效性，使(shi)剩余電(dian)(dian)量估計模型(xing)的(de)實現成為可(ke)能。除(chu)此(ci)以(yi)外，還要建(jian)立每塊電(dian)(dian)池的(de)使(shi)用歷史檔(dang)案，為進一步(bu)優(you)化和開發新型(xing)電(dian)(dian)、充電(dian)(dian)器、電(dian)(dian)動機等提供資(zi)料，為離線分析系(xi)統故障提供依據(ju)。
最后，實現單(dan)體電(dian)(dian)池間的(de)均衡，即為單(dan)體電(dian)(dian)池均衡充電(dian)(dian)，使電(dian)(dian)池組中各個電(dian)(dian)池都達到(dao)均衡一致(zhi)的(de)狀態(tai)。均衡技(ji)(ji)術是目(mu)前世界正(zheng)在致(zhi)力研(yan)究與開發的(de)一項電(dian)(dian)池能量管理系統的(de)關鍵技(ji)(ji)術。
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