茄子视频APP官网

施能百科

大功率電動汽車充電機的設計

2019/4/12 17:03:08??????點擊:
  純電(dian)(dian)動(dong)(dong)汽車(che)以(yi)鋰電(dian)(dian)池為動(dong)(dong)力源(yuan),充滿(man)電(dian)(dian)后(hou),以(yi)電(dian)(dian)力做(zuo)功推動(dong)(dong)汽車(che)。不同于汽油(you)(you)發(fa)(fa)(fa)動(dong)(dong)機汽車(che)需要(yao)(yao)添加汽油(you)(you),純電(dian)(dian)動(dong)(dong)汽車(che)在電(dian)(dian)力耗光后(hou)通(tong)過(guo)外(wai)置電(dian)(dian)源(yuan)對其(qi)(qi)進(jin)行(xing)(xing)充電(dian)(dian),通(tong)常單次行(xing)(xing)駛里程在100~200公里。與傳(chuan)統(tong)汽車(che)相(xiang)(xiang)比,純電(dian)(dian)動(dong)(dong)車(che)在使用(yong)成本上(shang)有著(zhu)(zhu)無以(yi)比擬的優勢,百公里約(yue)消耗15度電(dian)(dian),成本8元,僅(jin)相(xiang)(xiang)當(dang)于汽油(you)(you)發(fa)(fa)(fa)動(dong)(dong)機汽車(che)成本1/10。目(mu)前,國家已著(zhu)(zhu)手進(jin)行(xing)(xing)電(dian)(dian)動(dong)(dong)汽車(che)和新(xin)能源(yuan)汽車(che)的示范(fan)推廣(guang),電(dian)(dian)動(dong)(dong)汽車(che)充電(dian)(dian)站則是主要(yao)(yao)環節之一,必須與電(dian)(dian)動(dong)(dong)汽車(che)其(qi)(qi)他領域實現(xian)共同協調發(fa)(fa)(fa)展(zhan)。
充電(dian)模式
  電(dian)(dian)(dian)(dian)(dian)動(dong)汽(qi)車(che)能源供給(gei)系(xi)統(tong)主要由供電(dian)(dian)(dian)(dian)(dian)系(xi)統(tong)、充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)系(xi)統(tong)和動(dong)力蓄電(dian)(dian)(dian)(dian)(dian)池(chi)構(gou)成(cheng)。另(ling)外,還包括(kuo)充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)監控、電(dian)(dian)(dian)(dian)(dian)池(chi)管理和煙(yan)霧(wu)報警監控等(deng)。充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)機(ji)是充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)系(xi)統(tong)的重(zhong)要組成(cheng)部分(fen)。充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)站給(gei)汽(qi)車(che)充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)一(yi)般分(fen)為(wei)(wei)三種方式:普通充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)、快速充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)、電(dian)(dian)(dian)(dian)(dian)池(chi)更(geng)換。普通充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)多為(wei)(wei)交(jiao)流(liu)充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian),對于(yu)容量(liang)不超過(guo)5kW的交(jiao)流(liu)充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)機(ji),輸(shu)(shu)入為(wei)(wei)額(e)定電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)220V、50Hz的單相交(jiao)流(liu)電(dian)(dian)(dian)(dian)(dian),對于(yu)容量(liang)大于(yu)5kW的交(jiao)流(liu)充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)機(ji),輸(shu)(shu)入為(wei)(wei)額(e)定線(xian)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)380V、50Hz的三相交(jiao)流(liu)電(dian)(dian)(dian)(dian)(dian)。將交(jiao)流(liu)插頭直接(jie)插在電(dian)(dian)(dian)(dian)(dian)動(dong)汽(qi)車(che)充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)接(jie)口,充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)時(shi)間(jian)大約需要4~8小(xiao)時(shi)。快速充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)多為(wei)(wei)直流(liu)充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian),直流(liu)充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)機(ji)輸(shu)(shu)入為(wei)(wei)額(e)定線(xian)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)380V、50Hz的三相交(jiao)流(liu)電(dian)(dian)(dian)(dian)(dian),輸(shu)(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)一(yi)般不超過(guo)700V,輸(shu)(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)流(liu)一(yi)般不超過(guo)700A。交(jiao)流(liu)輸(shu)(shu)入隔離型(xing)AC/DC充(chong)(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)機(ji)的輸(shu)(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)為(wei)(wei)額(e)定電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)的50%~100%,并且輸(shu)(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)流(liu)為(wei)(wei)額(e)定電(dian)(dian)(dian)(dian)(dian)流(liu)時(shi),功率因數應(ying)大于(yu)0.85,效率應(ying)不小(xiao)于(yu)90%。
  充(chong)電(dian)(dian)(dian)機應能(neng)(neng)(neng)夠保證在充(chong)電(dian)(dian)(dian)過(guo)程中動(dong)力蓄電(dian)(dian)(dian)池(chi)(chi)(chi)單體電(dian)(dian)(dian)壓、溫度和電(dian)(dian)(dian)流不超過(guo)允(yun)許值(zhi)。充(chong)電(dian)(dian)(dian)機應具備防輸出短(duan)路和防反接功能(neng)(neng)(neng)。充(chong)電(dian)(dian)(dian)機至少能(neng)(neng)(neng)為以下三種類(lei)型動(dong)力蓄電(dian)(dian)(dian)池(chi)(chi)(chi)中的一種充(chong)電(dian)(dian)(dian):鋰離子蓄電(dian)(dian)(dian)池(chi)(chi)(chi)、鉛(qian)酸蓄電(dian)(dian)(dian)池(chi)(chi)(chi)、鎳氫(qing)蓄電(dian)(dian)(dian)池(chi)(chi)(chi)。
  動力電池組充電模式采用“恒流―恒壓”兩階段充電模式。充電開始階段,一般采用最優充電倍率(鋰離子電池為0.3C)進行恒流充電。(C是電池的容量,如C=800mAh,1C充電率即充電電流為800mA)在這一階段,由于電池的電動勢較低,即使電池充電電壓不高,電池的充電流也會很大,必須對充電電流加以限制。所以,這一階段的充電叫“恒流”充電,充電電流保持在限流值。隨著充電的延續,電池電動勢不斷上升,充電壓也不斷上升。當電池電壓上升到允許的最高充電電壓時,保持恒壓充電。在這一階段,由于電池電動勢還在不斷上升,而充電電壓又保持不變,所以電池的充電流呈雙曲線趨勢不斷下降,一直下降到零。但在實際充電過程中,當充電電流減小到0.015C時,說明充電已滿就可停止充電。這一階段的充電叫“恒壓”充電,這一階段的充電電壓:U=E+IR為恒壓值。這是鋰離子動力電池組對充電模式的基本要求。此外,充電系統還必須具有自動調節充電參數、自動控制和自動保護功能。尤其在恒壓充電階段,如果單體電池的充電電壓超過允許的充電電壓時,充電機應能自動減小充電電壓和電流,使該電池的充電電壓不超過允許的充電電壓,防止該電池過壓充電。上海施(shi)能(neng)電器設備有限公司始(shi)建(jian)于1984年,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。
公司概況 - 公司產品 - 熱點新聞
lutube-lutube下载-lutube下载地址-lutube最新地址 lutube-lutube下载-lutube下载地址-lutube最新地址 lutube-lutube下载-lutube下载地址-lutube最新地址