逆變(bian)器總成逆變(bian)器作(zuo)用就是把直流(liu)電(dian)變(bian)換為交流(liu)電(dian),逆變(bian)器主流(liu)有2種連接方(fang)式:
1、直接(jie)連在(zai)汽車電瓶上,功率較(jiao)高,可以為更(geng)多大(da)功率用電器使用,缺點(dian)是風險比較(jiao)大(da);
2、通(tong)過(guo)點煙(yan)器(qi)(qi)電(dian)(dian)源(yuan)轉換,輸(shu)出(chu)(chu)功(gong)(gong)率(lv)比較小,但也足夠大多(duo)數小型電(dian)(dian)器(qi)(qi)使用(yong)。逆(ni)(ni)變器(qi)(qi)是把直流電(dian)(dian)能(電(dian)(dian)池、蓄電(dian)(dian)瓶)轉變成(cheng)交流電(dian)(dian)(一般為(wei)220V,50Hz正弦波(bo)),其(qi)(qi)由逆(ni)(ni)變橋(qiao)、控(kong)制邏輯和濾波(bo)電(dian)(dian)路(lu)組成(cheng)。逆(ni)(ni)變器(qi)(qi)在工(gong)作(zuo)時其(qi)(qi)本身也要消耗(hao)一部分電(dian)(dian)力,因此輸(shu)入功(gong)(gong)率(lv)要大于其(qi)(qi)輸(shu)出(chu)(chu)功(gong)(gong)率(lv)。逆(ni)(ni)變器(qi)(qi)的效率(lv)即是逆(ni)(ni)變器(qi)(qi)輸(shu)出(chu)(chu)功(gong)(gong)率(lv)與輸(shu)入功(gong)(gong)率(lv)之比,即逆(ni)(ni)變器(qi)(qi)效率(lv)為(wei)輸(shu)出(chu)(chu)功(gong)(gong)率(lv)比上輸(shu)入功(gong)(gong)率(lv)。
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