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)人機交互(hu)界面采(cai)用大(da)屏幕LCD彩色觸摸屏(ping),充電可選擇定電量、定時間、定金額(e)、自(zi)動(充滿為止)4種模式(shi)(shi);顯示當前充(chong)電(dian)(dian)模式(shi)(shi)、時間(已(yi)充(chong)電(dian)(dian)時間、剩余充(chong)電(dian)(dian)時間)、電(dian)(dian)量(liang)(已(yi)充(chong)電(dian)(dian)電(dian)(dian)量(liang)、待充(chong)電(dian)(dian)電(dian)(dian)量(liang))及當前計費信(xin)息。
(2)讀卡器(qi)用(yong)于身份識(shi)別、記錄電量消(xiao)費信息。打(da)印機用(yong)于消(xiao)費票據打(da)印。
(3)完備(bei)的安全防(fang)護措施(shi)。
1)緊急停止充(chong)電按鈕(niu)。
2)輸出過(guo)電流保護(hu)功能。
3)輸(shu)出漏(lou)電保護功能。
4)自動(dong)判斷充(chong)(chong)(chong)電(dian)(dian)連(lian)接器、充(chong)(chong)(chong)電(dian)(dian)電(dian)(dian)纜是否(fou)正確連(lian)接。當交(jiao)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(jiao)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,立即停止(zhi)充(chong)(chong)(chong)電(dian)(dian)。
5)具有阻燃功能。
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,輸出為可調直(zhi)流(liu)電(dian)(dian)(dian),直(zhi)接為電(dian)(dian)(dian)動汽車(che)的(de)動力電(dian)(dian)(dian)池充電(dian)(dian)(dian)。由于(yu)直(zhi)流(liu)充電(dian)(dian)(dian)樁采用(yong)三(san)相(xiang)四(si)線制供電(dian)(dian)(dian),可以提供足夠的(de)功率(lv),輸出的(de)電(dian)(dian)(dian)壓和(he)電(dian)(dian)(dian)流(liu)調整(zheng)范圍(wei)大,可以實現(xian)快充的(de)要(yao)求。
交流(liu)充電樁:交流(liu)電動(dong)汽車(che)充電樁,俗稱就是(shi)“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(gu)定安(an)裝在電動汽車上的充電機(ji))提供交流電(dian)(dian)(dian)源的(de)供電(dian)(dian)(dian)裝置。交流充電(dian)(dian)(dian)樁只提供電(dian)(dian)(dian)力(li)輸出,沒有充電(dian)(dian)(dian)功能(neng),需連接車載充電(dian)(dian)(dian)機為電(dian)(dian)(dian)動汽車充電(dian)(dian)(dian)。相當于只是(shi)起(qi)了(le)一個控制(zhi)電(dian)(dian)(dian)源的(de)作用的(de)。
兩者的區別(bie):簡(jian)單來說,交流充電樁(zhuang)需要借助車載充電機來充電,直流快(kuai)速充電樁(zhuang)不需要這個設備。二者在充電速度(du)上差別(bie)較大,一輛純(chun)電動汽車(普通電池容量)完全放電后(hou)通(tong)過交流充(chong)電樁充(chong)滿需要8個小時,而通(tong)過直流(liu)快(kuai)速充電(dian)樁僅需要2到(dao)3個(ge)小時。交流充(chong)電(dian)樁(zhuang)給電(dian)動汽車的(de)充(chong)電(dian)機提(ti)供電(dian)力(li)輸入,由于(yu)車載(zai)充(chong)電(dian)機的(de)功(gong)率并不(bu)大,所以不(bu)能(neng)實現快速(su)充(chong)電(dian)。