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一種智能型全自動快速充電機的設計

2019/4/3 9:10:35??????點擊:
1 充電機的現(xian)狀(zhuang)
    目(mu)前,礦用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)車(che)蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)的(de)(de)(de)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian),無論是(shi)恒流充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)、恒壓充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)或是(shi)先恒流再(zai)恒壓的(de)(de)(de)分段式充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian),都有一個共同的(de)(de)(de)問題,就是(shi)這種小(xiao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流慢充(chong)(chong)(chong)(chong)方式,蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)初充(chong)(chong)(chong)(chong)需(xu)70小(xiao)時(shi)(shi)以上(shang),進行(xing)普通充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)也需(xu)10小(xiao)時(shi)(shi)以上(shang),這種充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)方式在充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)過程的(de)(de)(de)初期,充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流遠小(xiao)于蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)可(ke)接受(shou)的(de)(de)(de)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流,因而(er)(er)拉長了(le)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi)間(jian),造成(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)能的(de)(de)(de)浪費(fei)。而(er)(er)在充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)過程的(de)(de)(de)后期,充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流又大于蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)可(ke)接受(shou)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流,蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)內部(bu)溫(wen)度升高,產生大量析氣,并形(xing)成(cheng)內部(bu)硫化結(jie)晶,大大縮(suo)短(duan)了(le)蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)的(de)(de)(de)循(xun)環使用壽(shou)命,甚至(zhi)有可(ke)能永久性地損壞電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)。這不(bu)僅(jin)造成(cheng)了(le)浪費(fei),也增(zeng)加了(le)對環境的(de)(de)(de)污染。同時(shi)(shi),這種傳(chuan)統充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)采(cai)用變壓器變壓整流,可(ke)控硅控制(zhi)的(de)(de)(de)途徑,技(ji)術落后,設(she)備笨重,可(ke)靠性也差(cha)。
    美國(guo)科學家馬斯(si)通過(guo)(guo)對鉛酸(suan)蓄(xu)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)的(de)(de)(de)大量(liang)試驗(yan)研(yan)究,提(ti)(ti)出了(le)一(yi)(yi)條(tiao)鉛酸(suan)蓄(xu)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)可(ke)接(jie)受的(de)(de)(de)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流(liu)曲(qu)線。在(zai)(zai)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)過(guo)(guo)程(cheng)的(de)(de)(de)初期,蓄(xu)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)可(ke)接(jie)受的(de)(de)(de)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流(liu)很大。隨著充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)過(guo)(guo)程(cheng)的(de)(de)(de)延(yan)續,充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流(liu)逐漸按指(zhi)數規(gui)律(lv)減小。讓(rang)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)機的(de)(de)(de)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流(liu)按這樣一(yi)(yi)條(tiao)理想電(dian)(dian)(dian)(dian)(dian)流(liu)曲(qu)線變化(hua),就(jiu)可(ke)以最大限度的(de)(de)(de)提(ti)(ti)高充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)效(xiao)率。同時(shi),試驗(yan)表(biao)明(ming),采用(yong)脈沖(chong)式(shi)的(de)(de)(de)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)方式(shi)是消(xiao)(xiao)除(chu)各種極(ji)(ji)化(hua)現(xian)(xian)象(xiang),提(ti)(ti)高充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)速度,延(yan)長蓄(xu)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)循(xun)環使(shi)用(yong)壽命(ming)的(de)(de)(de)有(you)效(xiao)途徑。這種充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)方式(shi)是在(zai)(zai)對蓄(xu)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)過(guo)(guo)程(cheng)中適時(shi)暫停(ting)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian),并適當加(jia)入放電(dian)(dian)(dian)(dian)(dian)脈沖(chong)。當電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)停(ting)止時(shi),電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)的(de)(de)(de)歐姆極(ji)(ji)化(hua)消(xiao)(xiao)失(shi),濃差極(ji)(ji)化(hua)和電(dian)(dian)(dian)(dian)(dian)化(hua)學極(ji)(ji)化(hua)減弱。若能在(zai)(zai)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)過(guo)(guo)程(cheng)中讓(rang)其反向放電(dian)(dian)(dian)(dian)(dian),則極(ji)(ji)化(hua)現(xian)(xian)象(xiang)迅速消(xiao)(xiao)失(shi),電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)內部溫度也會因放電(dian)(dian)(dian)(dian)(dian)而得到有(you)效(xiao)控制。脈沖(chong)電(dian)(dian)(dian)(dian)(dian)流(liu)充(chong)(chong)放電(dian)(dian)(dian)(dian)(dian)對電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)極(ji)(ji)板有(you)加(jia)強(qiang)其韌(ren)性(xing)的(de)(de)(de)效(xiao)果,可(ke)以大大提(ti)(ti)高蓄(xu)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)的(de)(de)(de)循(xun)環使(shi)用(yong)壽命(ming)。同時(shi),由(you)于電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)極(ji)(ji)化(hua)現(xian)(xian)象(xiang)的(de)(de)(de)消(xiao)(xiao)失(shi),脈沖(chong)電(dian)(dian)(dian)(dian)(dian)流(liu)又可(ke)以深層次地激(ji)活(huo)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)內部的(de)(de)(de)活(huo)性(xing)物(wu)質(zhi),從而大幅度提(ti)(ti)高蓄(xu)電(dian)(dian)(dian)(dian)(dian)池(chi)(chi)(chi)(chi)(chi)的(de)(de)(de)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)有(you)效(xiao)容量(liang)。
    當前,帶(dai)有(you)(you)自適應控制(zhi)技(ji)術的脈沖式充電機已成(cheng)為(wei)礦(kuang)用(yong)電機車充電機的主(zhu)要發展方向。因此(ci),開發新(xin)一(yi)代的智(zhi)能快速充電機不僅可以(yi)提(ti)高充電效率,降低使用(yong)單位的運營成(cheng)本,同時也(ye)具有(you)(you)節(jie)能、環保等諸(zhu)方面的社會意(yi)義。
2 一種智(zhi)能型全自動快速充電(dian)機
2.1 電氣原理
    充電(dian)機(ji)電(dian)氣原理框圖(tu)(tu)見圖(tu)(tu)1。電(dian)氣原理分為三大部分,即逆變主通道、檢測控制單(dan)(dan)元和對話單(dan)(dan)元(顯示操作單(dan)(dan)元)。
    逆變主(zhu)通道將380 V交流(liu)電(dian)(dian)源變換為可對電(dian)(dian)池進行充電(dian)(dian)的可控直(zhi)流(liu)電(dian)(dian)源,由輸(shu)入回路(lu)(lu)、工頻(pin)整流(liu)濾(lv)波電(dian)(dian)路(lu)(lu)、移(yi)相(xiang)全橋(ZVT-PWM)變換電(dian)(dian)路(lu)(lu)、高頻(pin)整流(liu)電(dian)(dian)路(lu)(lu)濾(lv)波電(dian)(dian)路(lu)(lu)、輸(shu)出回路(lu)(lu)及放電(dian)(dian)回路(lu)(lu)組成。
    輸入回(hui)路即供(gong)電回(hui)路,在(zai)非運行(xing)狀(zhuang)態時,可切斷主通道電源。輸入回(hui)路設計有(you)軟(ruan)啟動功(gong)能,避(bi)免(mian)啟動沖擊對回(hui)路元件造成(cheng)的損傷(shang)。
    工(gong)頻整流(liu)濾波電(dian)路(lu)將380 V交(jiao)流(liu)電(dian)整流(liu)為約550 V的直流(liu)電(dian),如圖2所示。
    移(yi)相全橋功率變(bian)(bian)換電路(lu)是(shi)主通(tong)道的(de)(de)核心,完成從直(zhi)流(liu)到交流(liu)再到直(zhi)流(liu)的(de)(de)變(bian)(bian)換。如(ru)圖3所示(shi)。通(tong)過改(gai)變(bian)(bian)橋臂IGBT控制信號的(de)(de)相位,來改(gai)變(bian)(bian)耦合到高頻變(bian)(bian)壓(ya)器的(de)(de)波(bo)形(xing)寬度(du),從而改(gai)變(bian)(bian)輸(shu)出給被充電池(chi)的(de)(de)電流(liu)、電壓(ya)值。
    高頻(pin)(pin)整流(liu)濾波(bo)電(dian)(dian)路將高頻(pin)(pin)變壓器副邊的高頻(pin)(pin)交流(liu)電(dian)(dian),整流(liu)為電(dian)(dian)池(chi)充電(dian)(dian)要(yao)求的平(ping)滑直流(liu)電(dian)(dian)。
    輸出(chu)開關電(dian)路在非充(chong)電(dian)狀態下(xia)保證主通道與被充(chong)電(dian)池(chi)的(de)隔離,防止發生反接(jie)造成的(de)危(wei)險。
    放(fang)電(dian)(dian)(dian)電(dian)(dian)(dian)路實現"充(chong)(chong)-停(ting)-放(fang)-停(ting)-充(chong)(chong)"的(de)(de)(de)充(chong)(chong)電(dian)(dian)(dian)方式,從而(er)改善電(dian)(dian)(dian)池的(de)(de)(de)充(chong)(chong)電(dian)(dian)(dian)效果和恢復電(dian)(dian)(dian)池的(de)(de)(de)性(xing)能(neng)。此外,還(huan)可(ke)以對(dui)電(dian)(dian)(dian)能(neng)未消耗完的(de)(de)(de)待(dai)充(chong)(chong)電(dian)(dian)(dian)池進行放(fang)電(dian)(dian)(dian)處(chu)理(li)。
    控(kong)制單元接收來自對話單元給定的參(can)數和命令,并通過(guo)對主通道各相關參(can)數的實時檢測,動態控(kong)制主通道的工作,實現要(yao)求的充電(dian)功能和充電(dian)進程。同時為設備提(ti)供多種(zhong)保護。
    控制單(dan)元采(cai)用(yong)最新(xin)嵌入式(shi)內核芯片ARM設計(ji)。采(cai)集模擬量為:4路溫(wen)度、輸出(chu)電(dian)(dian)(dian)(dian)流(liu)、放(fang)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)流(liu)、輸出(chu)電(dian)(dian)(dian)(dian)壓(ya)和(he)電(dian)(dian)(dian)(dian)池(chi)電(dian)(dian)(dian)(dian)壓(ya)。控制量為:輸入開關、軟啟動、輸出(chu)開關、輸出(chu)電(dian)(dian)(dian)(dian)容放(fang)電(dian)(dian)(dian)(dian)和(he)ZVT-PWM變換控制等
    控制(zhi)(zhi)單(dan)(dan)元(yuan)與對話單(dan)(dan)元(yuan)之間(jian)為(wei)RS232全雙工通信。控制(zhi)(zhi)單(dan)(dan)元(yuan)接收來(lai)自對話單(dan)(dan)元(yuan)的(de)各(ge)種(zhong)控制(zhi)(zhi)命令,并向(xiang)對話單(dan)(dan)元(yuan)實(shi)時發(fa)送數據。
    對(dui)(dui)話單元(yuan)是整(zheng)機操(cao)作平臺(tai),接收并(bing)實現(xian)操(cao)作者的各種工(gong)作指(zhi)令,完成各種工(gong)作方(fang)式的參(can)數(shu)設定、記憶及各種動靜(jing)態(tai)參(can)數(shu)顯(xian)示(shi)。對(dui)(dui)話單元(yuan)由控制芯片、LCM、參(can)數(shu)存儲器和操(cao)作按鍵組成。
    當充(chong)電機進(jin)(jin)入工作狀態時,設備首先(xian)進(jin)(jin)行自(zi)檢。自(zi)檢項目包括充(chong)電電池是否反接、主通道(dao)各(ge)部分(fen)是否正常。
    自檢結果(guo)將發送給對話單(dan)元。
    自檢正常時,設(she)備處于待命狀態(tai),準備接(jie)收(shou)由對話單元(yuan)發(fa)來(lai)的各種命令(ling)及參數,并(bing)按(an)要求開始相應的工作進程。
    自檢故(gu)(gu)障時,對(dui)話單(dan)元顯示故(gu)(gu)障編(bian)號,等待(dai)檢修。
2.2 工作(zuo)方(fang)式(shi)
    智能(neng)型全自動快速充電機(ji)設計了三種工作(zuo)方式(shi):便捷方式(shi)、智能(neng)方式(shi)和放電方式(shi)。
    便捷方(fang)式。一種常規的恒(heng)流(liu)限(xian)壓(ya)定(ding)時充(chong)電(dian)(dian)(dian)(dian)(dian)工(gong)作(zuo)方(fang)式,此(ci)方(fang)式工(gong)作(zuo)時,充(chong)電(dian)(dian)(dian)(dian)(dian)機以(yi)設(she)(she)定(ding)電(dian)(dian)(dian)(dian)(dian)流(liu)向負(fu)載(zai)電(dian)(dian)(dian)(dian)(dian)瓶(ping)恒(heng)流(liu)充(chong)電(dian)(dian)(dian)(dian)(dian),當充(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)壓(ya)達(da)到(dao)限(xian)制電(dian)(dian)(dian)(dian)(dian)壓(ya)時,電(dian)(dian)(dian)(dian)(dian)壓(ya)不(bu)再上升,而充(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流(liu)逐漸(jian)減小(xiao)。當充(chong)電(dian)(dian)(dian)(dian)(dian)時間達(da)到(dao)設(she)(she)定(ding)時間時,充(chong)電(dian)(dian)(dian)(dian)(dian)機自動結束充(chong)電(dian)(dian)(dian)(dian)(dian)過程。此(ci)種模式充(chong)電(dian)(dian)(dian)(dian)(dian),電(dian)(dian)(dian)(dian)(dian)流(liu)不(bu)宜超過100 A,否則(ze)電(dian)(dian)(dian)(dian)(dian)瓶(ping)不(bu)易(yi)充(chong)滿,且析氣量大。
    智能(neng)方(fang)式(shi)。一種針對(dui)不同規格型號的(de)電(dian)池(chi)采取不同整定參(can)數充電(dian)的(de)工作方(fang)式(shi)。而對(dui)每一種電(dian)池(chi)又有三種充電(dian)模式(shi),即初充模式(shi)、恒流模式(shi)和快(kuai)速模式(shi)。
    a.初充(chong)模式(shi)(shi)。為兩階段(duan)的(de)定電(dian)流、定時間(jian)的(de)自動充(chong)電(dian)方式(shi)(shi)。主要為新電(dian)池初充(chong)設計。此模式(shi)(shi)充(chong)電(dian),兩階段(duan)電(dian)流均不(bu)宜過大,
    b.恒流模式。開(kai)始充(chong)電(dian)(dian)(dian)時(shi)(shi)為恒流工作,當電(dian)(dian)(dian)壓升高到設定值時(shi)(shi)轉入穩壓工作,當充(chong)電(dian)(dian)(dian)時(shi)(shi)間(jian)達到設定時(shi)(shi)間(jian)或充(chong)電(dian)(dian)(dian)容量滿時(shi)(shi)自動(dong)停止(zhi)充(chong)電(dian)(dian)(dian),這是基本進(jin)程。當充(chong)電(dian)(dian)(dian)時(shi)(shi)間(jian)足夠長時(shi)(shi),基本進(jin)程會(hui)疊加(jia)周(zhou)期性(xing)的放電(dian)(dian)(dian)脈沖,疊加(jia)后的充(chong)電(dian)(dian)(dian)過(guo)程為"充(chong)-停-放-停-充(chong)"。
    c. 快速模(mo)式(shi)。快速模(mo)式(shi)包含三個順序階段(duan):恒(heng)(heng)流、恒(heng)(heng)壓和(he)小電(dian)(dian)(dian)(dian)流維(wei)(wei)持。恒(heng)(heng)流段(duan)以(yi)大電(dian)(dian)(dian)(dian)流充(chong)(chong)電(dian)(dian)(dian)(dian)為(wei)(wei)特征(zheng),當(dang)(dang)(dang)充(chong)(chong)電(dian)(dian)(dian)(dian)量(liang)達(da)到設(she)(she)(she)定(ding)(ding)容量(liang)或(huo)充(chong)(chong)電(dian)(dian)(dian)(dian)時(shi)(shi)(shi)間達(da)到設(she)(she)(she)定(ding)(ding)值(zhi)或(huo)電(dian)(dian)(dian)(dian)壓升至限定(ding)(ding)值(zhi)時(shi)(shi)(shi)結束(shu)(shu),轉入恒(heng)(heng)壓段(duan)。恒(heng)(heng)流段(duan)可使電(dian)(dian)(dian)(dian)瓶(ping)(ping)恢復(fu)80%左右(you)的(de)(de)容量(liang)。恒(heng)(heng)壓段(duan)則維(wei)(wei)持恒(heng)(heng)流充(chong)(chong)電(dian)(dian)(dian)(dian)結束(shu)(shu)時(shi)(shi)(shi)的(de)(de)電(dian)(dian)(dian)(dian)壓,而電(dian)(dian)(dian)(dian)流逐漸減小,當(dang)(dang)(dang)恒(heng)(heng)壓充(chong)(chong)電(dian)(dian)(dian)(dian)達(da)到設(she)(she)(she)定(ding)(ding)時(shi)(shi)(shi)間時(shi)(shi)(shi),自動轉入維(wei)(wei)持充(chong)(chong)電(dian)(dian)(dian)(dian)過(guo)程。快速模(mo)式(shi)和(he)恒(heng)(heng)流模(mo)式(shi)一樣,當(dang)(dang)(dang)充(chong)(chong)電(dian)(dian)(dian)(dian)時(shi)(shi)(shi)間足夠長時(shi)(shi)(shi),基本(ben)進(jin)程會疊(die)加周期性的(de)(de)放(fang)(fang)電(dian)(dian)(dian)(dian)脈沖,疊(die)加后的(de)(de)充(chong)(chong)電(dian)(dian)(dian)(dian)過(guo)程為(wei)(wei)"充(chong)(chong)-停(ting)-放(fang)(fang)-停(ting)-充(chong)(chong)"。恒(heng)(heng)壓過(guo)程結束(shu)(shu)時(shi)(shi)(shi),電(dian)(dian)(dian)(dian)瓶(ping)(ping)容量(liang)可恢復(fu)95%以(yi)上。當(dang)(dang)(dang)充(chong)(chong)電(dian)(dian)(dian)(dian)進(jin)程轉入維(wei)(wei)持充(chong)(chong)電(dian)(dian)(dian)(dian)過(guo)程時(shi)(shi)(shi),脈沖疊(die)加停(ting)止(zhi)。放(fang)(fang)電(dian)(dian)(dian)(dian)方式(shi)是為(wei)(wei)人工(gong)對電(dian)(dian)(dian)(dian)瓶(ping)(ping)放(fang)(fang)電(dian)(dian)(dian)(dian)而設(she)(she)(she)計的(de)(de)功能。進(jin)入該(gai)方式(shi)時(shi)(shi)(shi),電(dian)(dian)(dian)(dian)瓶(ping)(ping)按照設(she)(she)(she)定(ding)(ding)電(dian)(dian)(dian)(dian)流放(fang)(fang)電(dian)(dian)(dian)(dian),當(dang)(dang)(dang)電(dian)(dian)(dian)(dian)瓶(ping)(ping)電(dian)(dian)(dian)(dian)壓降到設(she)(she)(she)定(ding)(ding)值(zhi)時(shi)(shi)(shi)自動停(ting)止(zhi)放(fang)(fang)電(dian)(dian)(dian)(dian)。
2.3 技術性能和參數
    1)額定輸入(ru)電壓:380 VAC±10%50 Hz;
    2)額定(ding)輸出功率:30 kW;
    3)直流(liu)輸出電流(liu):5-200 A;
    4)直流輸出電壓(ya):30~300 V;
    5)工作模式(shi)(shi):三種,便捷充(chong)電、智(zhi)能(neng)充(chong)電和自(zi)動放電。智(zhi)能(neng)充(chong)電模式(shi)(shi)分為三種充(chong)電方(fang)式(shi)(shi),即初充(chong)方(fang)式(shi)(shi)、恒(heng)流方(fang)式(shi)(shi)和快(kuai)速方(fang)式(shi)(shi);
    6)具(ju)有自檢功能;
    7)具有(you)電池反接保(bao)護功能;
    8)具有過(guo)流、過(guo)載、短路和超溫(wen)等保護功能;
3 結語
    本設計以大功率IGBT為核心,嵌入先進的智能控制系統,在充電過程中實時檢測電池的充電情況,自動調整充電參數,實現最佳的模式控制。通過"充-停-放-停-充"的脈沖充電方式,實現了可控的去極化功能和最佳的充電工藝要求,提高了充電效率和電池的充電容量,延長了電池的使用壽命,同時設備還具有自檢及多種保護功能,有著廣闊的應用前景。上海施(shi)能電(dian)器設備(bei)有限公司始(shi)建于1984年(nian),上海市高新技術企業,中國工業車輛優秀配套供應商,上海電器行業名優產品,主要生產工頻系列充電機,高頻系列充電機,鋰電池充電機系列放電機系列充放電機等電器產品。
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