交流充電樁原理
交流充電樁,本質就是一個帶控制的插座,輸出的是交流電,需要車載充電機自己進行變壓整流,受限于車載充電機功率,一般功率小,3.3和7kw的居多。
交流充電樁功能特點
(1)人(ren)機交互界面采用大屏幕LCD彩色觸摸屏(ping),充電可選擇定(ding)電量(liang)、定(ding)時(shi)間、定(ding)金額、自動(充滿為止(zhi))4種模式;顯示當前充(chong)電(dian)模式、時(shi)間(jian)(已(yi)充(chong)電(dian)時(shi)間(jian)、剩余(yu)充(chong)電(dian)時(shi)間(jian))、電(dian)量(liang)(已(yi)充(chong)電(dian)電(dian)量(liang)、待充(chong)電(dian)電(dian)量(liang))及當前計費信息。
(2)讀(du)卡器用于身份識(shi)別、記(ji)錄電量消(xiao)費(fei)信息。打印(yin)機用于消(xiao)費(fei)票據打印(yin)。
(3)完(wan)備的安全防護措施(shi)。
1)緊急停止充電按鈕(niu)。
2)輸出(chu)過電流保護(hu)功能。
3)輸出漏電保(bao)護功能。
4)自動(dong)判(pan)斷充(chong)(chong)(chong)電(dian)(dian)連(lian)接器、充(chong)(chong)(chong)電(dian)(dian)電(dian)(dian)纜是否正確連(lian)接。當交流(liu)充(chong)(chong)(chong)電(dian)(dian)樁與電(dian)(dian)動(dong)汽車正確連(lian)接后,充(chong)(chong)(chong)電(dian)(dian)樁才能允許啟動(dong)充(chong)(chong)(chong)電(dian)(dian)過程;當交流(liu)充(chong)(chong)(chong)電(dian)(dian)樁檢測到與電(dian)(dian)動(dong)汽車連(lian)接不正常(chang)時,立(li)即(ji)停(ting)止充(chong)(chong)(chong)電(dian)(dian)。
5)具有阻燃(ran)功能。
直流充電樁和交流充電樁的區別
直流充電樁:直流電動汽車充電站,俗稱就是“快充”,它是固定安裝在電動汽車外,與交流電網連接,可以為非車載電動汽車動力電池提供直流電源的供電裝置。直流充電樁的輸入電壓采用三相四線AC380V±15%,頻率50Hz,輸(shu)出為可調直流(liu)電(dian)(dian),直接為電(dian)(dian)動(dong)汽車的動(dong)力電(dian)(dian)池充電(dian)(dian)。由于(yu)直流(liu)充電(dian)(dian)樁采用三相四線制供(gong)電(dian)(dian),可以(yi)提供(gong)足夠的功(gong)率,輸(shu)出的電(dian)(dian)壓和電(dian)(dian)流(liu)調整范圍大,可以(yi)實(shi)現快充的要(yao)求。
交流(liu)充電樁:交流(liu)電動汽(qi)車充電樁,俗稱就(jiu)是“慢充”,固定安裝在電動汽車外、與交流電網連接,為電動汽車車載充電機(即固定安裝在電動汽車(che)上的充電機)提供交流電(dian)(dian)源的(de)供電(dian)(dian)裝置。交流充(chong)電(dian)(dian)樁(zhuang)只提供電(dian)(dian)力輸出,沒有充(chong)電(dian)(dian)功(gong)能(neng),需連接車載充(chong)電(dian)(dian)機為電(dian)(dian)動汽車充(chong)電(dian)(dian)。相(xiang)當于只是起了一個控制電(dian)(dian)源的(de)作用的(de)。
兩者的區別:簡單(dan)來說,交流(liu)充電樁需要(yao)借助車載充電機來充電,直(zhi)流(liu)快速充電樁不(bu)需要(yao)這個(ge)設備。二者在充電速度上差別較大(da),一輛純(chun)電動汽車(普(pu)通電池容量)完全放(fang)電后通過(guo)交流(liu)充電樁充滿需要8個小時,而通過(guo)直流(liu)快(kuai)速充電樁(zhuang)僅需要2到(dao)3個小時。交流充(chong)(chong)(chong)電(dian)(dian)樁給電(dian)(dian)動汽車(che)的充(chong)(chong)(chong)電(dian)(dian)機提供電(dian)(dian)力輸入,由于(yu)車(che)載充(chong)(chong)(chong)電(dian)(dian)機的功率并不(bu)大,所以(yi)不(bu)能實現快(kuai)速充(chong)(chong)(chong)電(dian)(dian)。