無刷(shua)(shua)(shua)DC電機(ji)(ji)響應快，啟動扭矩(ju)(ju)大(da)，可提供從零速(su)到額(e)定(ding)速(su)度(du)的(de)額(e)定(ding)扭矩(ju)(ju)性能，但無刷(shua)(shua)(shua)DC電機(ji)(ji)的(de)優點(dian)(dian)也(ye)是其缺(que)點(dian)(dian)，因(yin)為DC電機(ji)(ji)必(bi)須在額(e)定(ding)負載(zai)下產(chan)生(sheng)(sheng)恒定(ding)旋(xuan)轉(zhuan)(zhuan)。為了獲(huo)得扭矩(ju)(ju)性能，電樞磁(ci)場和轉(zhuan)(zhuan)子磁(ci)場必(bi)須保持在90°，這需要(yao)碳(tan)(tan)刷(shua)(shua)(shua)和換(huan)(huan)向(xiang)器。當電機(ji)(ji)旋(xuan)轉(zhuan)(zhuan)時(shi)，碳(tan)(tan)刷(shua)(shua)(shua)和換(huan)(huan)向(xiang)器會產(chan)生(sheng)(sheng)火花和碳(tan)(tan)粉。因(yin)此，除(chu)了損壞(huai)部(bu)件外，使用場合(he)也(ye)有限。

　　無刷直(zhi)流(liu)電(dian)(dian)機(ji)(ji)(ji)應(ying)用(yong)(yong)廣泛，如汽車(che)、工(gong)(gong)具、工(gong)(gong)業(ye)控(kong)(kong)(kong)制(zhi)(zhi)、自動化(hua)和(he)(he)(he)(he)航空航天(tian)。一(yi)般來說，無刷直(zhi)流(liu)電(dian)(dian)機(ji)(ji)(ji)可(ke)(ke)以(yi)(yi)分為以(yi)(yi)下三個(ge)主要(yao)(yao)(yao)用(yong)(yong)途(tu):1。連續負載應(ying)用(yong)(yong):主要(yao)(yao)(yao)用(yong)(yong)于(yu)需要(yao)(yao)(yao)一(yi)定速度但不需要(yao)(yao)(yao)高速精度的(de)(de)區域(yu)，如風(feng)扇、泵、吹風(feng)機(ji)(ji)(ji)等。，成本低，大(da)(da)(da)部分是開環控(kong)(kong)(kong)制(zhi)(zhi)。2.可(ke)(ke)變負載應(ying)用(yong)(yong):主要(yao)(yao)(yao)需要(yao)(yao)(yao)在一(yi)定范圍內改變速度的(de)(de)應(ying)用(yong)(yong)，對(dui)(dui)電(dian)(dian)機(ji)(ji)(ji)的(de)(de)速度特(te)性和(he)(he)(he)(he)動態響應(ying)時間特(te)性有(you)更高的(de)(de)要(yao)(yao)(yao)求。例如，家(jia)用(yong)(yong)電(dian)(dian)器中的(de)(de)干燥機(ji)(ji)(ji)和(he)(he)(he)(he)壓縮機(ji)(ji)(ji)就(jiu)是一(yi)個(ge)很好的(de)(de)例子。對(dui)(dui)于(yu)這(zhe)類應(ying)用(yong)(yong)，汽車(che)工(gong)(gong)業(ye)中的(de)(de)油(you)泵控(kong)(kong)(kong)制(zhi)(zhi)、電(dian)(dian)氣控(kong)(kong)(kong)制(zhi)(zhi)器和(he)(he)(he)(he)發動機(ji)(ji)(ji)控(kong)(kong)(kong)制(zhi)(zhi)相對(dui)(dui)昂貴。3.定位應(ying)用(yong)(yong):大(da)(da)(da)多(duo)數工(gong)(gong)業(ye)控(kong)(kong)(kong)制(zhi)(zhi)和(he)(he)(he)(he)自動控(kong)(kong)(kong)制(zhi)(zhi)應(ying)用(yong)(yong)都屬(shu)于(yu)這(zhe)類。這(zhe)種(zhong)應(ying)用(yong)(yong)通(tong)常完成能量(liang)傳輸(shu)(shu)，因此對(dui)(dui)動態響應(ying)和(he)(he)(he)(he)速度轉矩(ju)有(you)特(te)殊要(yao)(yao)(yao)求。對(dui)(dui)控(kong)(kong)(kong)制(zhi)(zhi)器的(de)(de)要(yao)(yao)(yao)求也更高。光電(dian)(dian)和(he)(he)(he)(he)一(yi)些(xie)同步設備可(ke)(ke)用(yong)(yong)于(yu)速度測(ce)量(liang)。工(gong)(gong)藝控(kong)(kong)(kong)制(zhi)(zhi)、機(ji)(ji)(ji)械控(kong)(kong)(kong)制(zhi)(zhi)和(he)(he)(he)(he)運(yun)輸(shu)(shu)控(kong)(kong)(kong)制(zhi)(zhi)是許多(duo)應(ying)用(yong)(yong)之一(yi)。DC無刷齒(chi)輪(lun)電(dian)(dian)機(ji)(ji)(ji)體積小，重(zhong)量(liang)輕(qing)，負載能力高，使(shi)用(yong)(yong)壽命(ming)長(chang)，運(yun)行穩定，噪音低。它具有(you)功率分配和(he)(he)(he)(he)多(duo)齒(chi)嚙合的(de)(de)特(te)點(dian)。最(zui)大(da)(da)(da)輸(shu)(shu)入(ru)功率可(ke)(ke)達104kW。DC無刷齒(chi)輪(lun)電(dian)(dian)機(ji)(ji)(ji)適用(yong)(yong)于(yu)起重(zhong)運(yun)輸(shu)(shu)、建(jian)筑(zhu)機(ji)(ji)(ji)械、冶金(jin)、礦(kuang)山、石化(hua)、建(jian)筑(zhu)機(ji)(ji)(ji)械、輕(qing)工(gong)(gong)紡織、醫(yi)療設備、儀(yi)器儀(yi)表、汽車(che)、船舶、武(wu)器、航空航天(tian)等工(gong)(gong)業(ye)領(ling)域(yu)。