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電動自行車鋰電池管理系統(tǒng)(參考版)

2025-04-20 23:36本頁面
  

【正文】 。最近還通過了可再生能源組合標(biāo)準(zhǔn)和增加打擊小型低效的燃煤發(fā)電廠,將有助于實現(xiàn)這一目標(biāo)。必要的量化的差異表現(xiàn)在模型設(shè)計與實際系統(tǒng)中,從而可以提高模型的設(shè)計,更好地了解潛在的影響系統(tǒng)運行的因素,并為制造商供數(shù)據(jù),帶來更好的產(chǎn)品推向市場。一般來說,由于缺乏獨立—影響實驗驗證的許多型號的存在,一個缺乏實驗性能數(shù)據(jù)全尺寸的混合動力系統(tǒng)。很少有文獻(xiàn)記錄的性能控制系統(tǒng)。 有些網(wǎng)站提出了解決優(yōu)化的方法,組件的大小和調(diào)度采用普遍的算法,以減少計算時間[8,14,15]。許多研究著眼于優(yōu)化組件的大小卻沒有注意組件的分配策略[9 13]。其二是系統(tǒng)設(shè)計的總成本。在實際中,設(shè)計一個混合系統(tǒng)是由兩部分組成的。該系統(tǒng)利用不同電力生產(chǎn)技術(shù)相互補充,發(fā)揮各電池的作用,使各種電池為系統(tǒng)提供充分的能量。電池和電動機的技術(shù)大大改善,允許更好的E2Ws(杰姆森和本杰明,2005),由于城市的迅速擴張,更加快了自行車的發(fā)展。如果E2W繼續(xù)研究取的成功,它會加速電池的開發(fā)和較大的電動車(電動汽車)的發(fā)展。 it is arguably the most successful electricdrive market in the world. If E2W success continues, it may accelerate the development of batteries and larger electric vehicles (EV). Their rapid adoption was a response to the timely convergence of some lcey trends that started in the late 1990s. Ines were rising, allowing consumers to move from regular bicycles and public transport to E2Ws. Gasolinepowered motorcycles (includ ing scooters) were banned in several cities due to worsening air pollution. Battery and motor technologies improved dramatically, allowing better E2Ws (Jamerson and Benjamin, 2005). Urban trip distances rose due to rapidly expanding cities, encouraging faster, longerrange bicycles. A hybrid power system is an autonomous power system that incorporates two or more unique power generation technologies to produce power at lower costs and/or higher reliability than a singular power system. The system takes advantage of different power production technologies that plement each other and provides inventive energy usage and production schemes through which renewable energy can be maximized while excess energy is minimized. There are several hybrid systems described in the liter attire, such as photovoltaic (PV)/Diesel generator power systems [1],PV/Battery/Diesel [24], PV/Wind Turbine/Battery/Diesel [5], PV/Wind only [6], and PV/Wind/Diesel/Microhydroelectric turbine [7]. In reality, designing a hybrid system is a twopart optimiza tion: the ponent sizing which dictates how much electricity is available to be utilized by the load and the energy dispatch. Many studies have looked to optimize the ponent size of a system without variation of the distribution strategy [913]. How ever, few studies discussed the optimization of the dispatch strat egy of a hybrid system because it is such a large multivariable problem. Those that are willing to tackle optimization of both ponent size and dispatch strategy usually employ genetic algo rithms to reduce the putation time [8,14,15]. Although useful, all the papers described above propose new and different models to describe the performance of a hybrid system and out of necessity all models are only approximations of reality. There is very little literature documenting the performance of installedsystems. Nayar et al. built and tested a PVdiesel hybrid system and described the system39。他們的愛一直陪伴著我,給了我無盡信心和力量。 也要感謝那些對我的大力支持和幫助的人,還要感謝我的宿舍和班級里的眾多同學(xué)和朋友。王老師不僅在學(xué)術(shù)上給予了我精心的指導(dǎo),同時,也言傳身教了許多研究的方法和為人處事的道理。盡管如此,但是由于本人設(shè)計一經(jīng)驗的貴乏和時間的限制,系統(tǒng)還有進(jìn)一步完善和改迸的空間。 (5)最后在實驗室環(huán)境下對系統(tǒng)進(jìn)行了簡羊的功能測試,并對實驗數(shù)據(jù)進(jìn)行了深一步的分析。通過對電壓、電流、溫度等參數(shù)的采集,應(yīng)用卡爾曼算法實現(xiàn)了SOC的估算。 (2)出于鋰離子電池在工作中的安全性考慮,設(shè)計了保護(hù)電路。并在以上的前提下,考慮了人們在實際應(yīng)用中對管理系統(tǒng)的需求,確定了鉀離子電池管理系統(tǒng)的硬件設(shè)計方案和軟件實現(xiàn)方案。7 結(jié)論 本文針對鋰離子電池組的日益廣泛應(yīng)用、市場的需求以及鏗離子電池組管系統(tǒng)的發(fā)展現(xiàn)狀與實際應(yīng)用中的難題,研究設(shè)計了一種經(jīng)濟適用、安全可靠的七節(jié)適用于電動自行車的鏗離子電池組智能管理系統(tǒng)。試驗用的電池是串聯(lián)在一起的7個單體鋰離子電池,其容量為8Ah。6試驗結(jié)果及分析在本文第四章系統(tǒng)硬件設(shè)計和第五章軟件設(shè)計的基礎(chǔ)上,根據(jù)電路原理圖制成電路板,對系統(tǒng)功能進(jìn)行初步調(diào)試。(5)軟件設(shè)計的正確性。(4)增加了軟件復(fù)位功能。(3)看門狗程序。(2)修改寄存器時要慎重。一般連續(xù)三次采樣,然后對采樣得的值取平均值。其二是在因干擾而使運行程序發(fā)生混亂,導(dǎo)致程序亂飛和陷入死循環(huán)時,采取使程序回歸正軌的措施,這些措施可以由軟件單獨實現(xiàn),也可以采用軟硬件相結(jié)合來實現(xiàn)。硬件抗干擾是主動措施。保護(hù)模塊根據(jù)所采樣的值對所有故障設(shè)定值進(jìn)行判斷,如果有故障發(fā)生,則管理系統(tǒng)關(guān)斷充電或放電控制開關(guān),否則進(jìn)入均衡判斷模塊。return(js)。p[jj]=p[jj]+f[i*n+kk]*a[j*l+kk]。kk++)kk=n1。(kk=0。p[jj]=q[jj]。jj=i*n+j。fori++)i=n1。(i=0。a[jj]=a[jj]+b[i*l+kk]*f[j*n+kk]。kk++)kk=n1。(kk=0。a[jj]=。jj=i*l+j。fori++)i=n1。(i=0。b[jj]=b[jj]+a[i*l+kk]*p[kk*n+j]。kk++)kk=n1。(kk=0。b[jj]=。jj=i*l+j。fori++)i=n1。(i=0。a[jj]=+a[jj]。iffor{j++)j=n1。(j=0。forif}for{i++)i=n1。(i=0。b[jj]=b[jj]h[i*n+j]*x[(ii1)*n+j]。j++)j=n1。(j=0。b[jj]=y[(ii1)*m+i]。jj=i*l。for}for{i++)i=n1。(i=0。g[jj]=g[jj]+a[i*l+kk]*e[j*m+kk]。kk++)kk=m1。(kk=0。g[jj]=。jj=i*m+j。fori++)i=n1。(i=0。return(js)。free(b)。free(a)。free(e)。(js==0)js=rinv(e,m)。}for{j++)j=m1。(j=0。for}for{j++)j=m1。(j=0。forfor}for{j++)j=n1。(j=0。for}for{j++)j=n1。(j=0。fora=malloc(l*l*sizeof(double))。(ln)l=m。*e,*a,*b。i,j,kk,ii,l,jj,js。{doubleintlman(n,m,k,f,q,r,h,y,x,p,g)include SOC算法5. 2. 2卡爾曼濾波程序電池剩余電量的卡爾曼濾波估計原理己在前面詳細(xì)介紹,這里僅給出程序?qū)崿F(xiàn)卡爾曼算法的C語言程序。其中SOC的估算為重點,能反映電池最重要的狀態(tài)剩余電量。,各子模塊測量所在電池的單體電壓和溫度,將數(shù)據(jù)通過CAN總線報送母控制器,母模塊完成電壓、電流、過電流、漏電流等數(shù)據(jù)測量,同時控制熱管理風(fēng)機的啟停,將重要數(shù)據(jù)信息整車通過CAN總線報送至整車控制器。(4)實現(xiàn)CAN通訊,將電池的采集、計算、故障信息傳輸?shù)诫妱幼孕熊囈壕э@示單元進(jìn)行顯示。 (2)由電池的基本信息可確定電池的剩余電量((SOC)。所以數(shù)據(jù)采集模塊對電壓、溫度和電流的采集是以硬件為平臺來實現(xiàn)的,而電量估算模塊、狀態(tài)管理模塊、則是通過軟件部分來處理的,并輸出顯示模塊。近幾年來,隨著集成技術(shù)的發(fā)展,體積小和成本低的管理系統(tǒng)越來越受到人們的喜歡。在本次均衡充電的研究過程中,還有很多有待于進(jìn)一步解決的難題:均衡充電的控制策略和均衡充電的算法。 通過以上所述的均衡充電方案的分析,本系統(tǒng)所設(shè)計的方案基木達(dá)到要求。剛開始Q4導(dǎo)通,Q2,Q3,Q5截止,單節(jié)電池的電壓不斷升高,當(dāng)檢測到某一節(jié)電池的電壓達(dá)到額定電壓12 V以后,電壓檢測芯片發(fā)出驅(qū)動信號,關(guān)閉Q4,打開Q2 , Q3 ,QS,整個系統(tǒng)進(jìn)入單充階段,未充滿的電池繼續(xù)充電,以達(dá)到額定電壓的電池保持額定電壓不變。Q4是控制電池組整充的開關(guān),Q2,Q3,Q5是控制單節(jié)電池充電的開關(guān)。電池組常用的均衡方法有分流法、飛速電容均衡充電法、電感能量傳遞方法等。單
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