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(he)7kw的(de)居多。
交流充電樁功能特點
(1)人機交(jiao)互界面采用大屏(ping)幕LCD彩色觸摸屏(ping),充電可選擇定(ding)電量、定(ding)時(shi)間、定(ding)金額、自動(dong)(充滿為止(zhi))4種(zhong)模式;顯(xian)示當前充(chong)(chong)電(dian)模式、時(shi)間(jian)(jian)(已(yi)充(chong)(chong)電(dian)時(shi)間(jian)(jian)、剩(sheng)余(yu)充(chong)(chong)電(dian)時(shi)間(jian)(jian))、電(dian)量(已(yi)充(chong)(chong)電(dian)電(dian)量、待充(chong)(chong)電(dian)電(dian)量)及當前計費信息。
(2)讀卡器用于(yu)身份識別、記錄電量消費信(xin)息(xi)。打印機用于(yu)消費票據打印。
(3)完備(bei)的安全防護措施。
1)緊急停止充電(dian)按(an)鈕(niu)。
2)輸出過電流保護功能。
3)輸出漏電保護功能。
4)自動(dong)(dong)判(pan)斷充電(dian)(dian)(dian)(dian)連(lian)(lian)接(jie)(jie)(jie)器、充電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)纜是否正(zheng)確(que)連(lian)(lian)接(jie)(jie)(jie)。當交(jiao)流充電(dian)(dian)(dian)(dian)樁(zhuang)與(yu)(yu)電(dian)(dian)(dian)(dian)動(dong)(dong)汽車正(zheng)確(que)連(lian)(lian)接(jie)(jie)(jie)后,充電(dian)(dian)(dian)(dian)樁(zhuang)才能允許啟(qi)動(dong)(dong)充電(dian)(dian)(dian)(dian)過程;當交(jiao)流充電(dian)(dian)(dian)(dian)樁(zhuang)檢(jian)測到與(yu)(yu)電(dian)(dian)(dian)(dian)動(dong)(dong)汽車連(lian)(lian)接(jie)(jie)(jie)不正(zheng)常時,立即停止充電(dian)(dian)(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(shu)(shu)出為可調直(zhi)(zhi)流電(dian),直(zhi)(zhi)接(jie)為電(dian)動汽車的動力電(dian)池充(chong)電(dian)。由于直(zhi)(zhi)流充(chong)電(dian)樁采用三相四線制供電(dian),可以提供足夠的功率(lv),輸(shu)(shu)出的電(dian)壓和電(dian)流調整范(fan)圍大(da),可以實現快充(chong)的要(yao)求。
交流(liu)充(chong)電(dian)樁:交流(liu)電(dian)動(dong)汽(qi)車(che)充(chong)電(dian)樁,俗稱就是“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上的(de)充電機(ji))提(ti)供(gong)交流電(dian)源(yuan)的(de)供(gong)電(dian)裝(zhuang)置。交流充電(dian)樁只(zhi)提(ti)供(gong)電(dian)力輸(shu)出(chu),沒有(you)充電(dian)功能(neng),需連(lian)接車載(zai)充電(dian)機為電(dian)動汽車充電(dian)。相當于只(zhi)是(shi)起了一個控制電(dian)源(yuan)的(de)作用的(de)。
兩者的區別(bie):簡(jian)單來說,交(jiao)流充電樁(zhuang)需(xu)要(yao)借助車載充電機來充電,直流快速充電樁(zhuang)不需(xu)要(yao)這個設備。二者在充電速度上(shang)差別(bie)較大(da),一輛純(chun)電動汽車(普(pu)通電池容量)完全放電后(hou)通過交(jiao)流充電樁(zhuang)充滿需要8個小時,而通過直流快(kuai)速充電樁僅(jin)需要2到(dao)3個小時(shi)。交(jiao)流充(chong)電(dian)(dian)(dian)樁給(gei)電(dian)(dian)(dian)動汽車的充(chong)電(dian)(dian)(dian)機提供(gong)電(dian)(dian)(dian)力輸入,由于車載充(chong)電(dian)(dian)(dian)機的功率并不大(da),所以不能實現快速充(chong)電(dian)(dian)(dian)。