無刷電機和有刷電機是兩種常用的驅動電機，在使用過程中，無刷電機好？還是有刷電機好呢？下面(mian)將詳細介(jie)紹(shao)兩種驅動電機(ji)的(de)優點(dian)、缺(que)點(dian)。

無(wu)(wu)(wu)刷電(dian)(dian)(dian)機(ji)優點：良好(hao)，能(neng)耗低。全球范(fan)圍(wei)(wei)都(dou)在大(da)(da)力推(tui)廣無(wu)(wu)(wu)刷電(dian)(dian)(dian)機(ji)的(de)應(ying)用，這(zhe)個跟(gen)無(wu)(wu)(wu)刷本身的(de)性(xing)能(neng)優勢有(you)(you)很(hen)大(da)(da)的(de)關系(xi)，從(cong)(cong)能(neng)源(yuan)消耗角(jiao)度考慮，確(que)實(shi)是(shi)大(da)(da)勢所趨。噪音(yin)(yin)低（靜(jing)(jing)音(yin)(yin)），運轉(zhuan)(zhuan)順(shun)暢。無(wu)(wu)(wu)刷電(dian)(dian)(dian)機(ji)沒有(you)(you)了電(dian)(dian)(dian)刷，運轉(zhuan)(zhuan)時摩擦力大(da)(da)大(da)(da)減小(xiao)，運行順(shun)暢，噪音(yin)(yin)會(hui)低許多，這(zhe)個對于很(hen)多應(ying)用來(lai)說都(dou)是(shi)一個優勢，家電(dian)(dian)(dian)類，工業自動化，醫療行業等，都(dou)需(xu)要(yao)靜(jing)(jing)音(yin)(yin)的(de)環境。壽(shou)命長，低維護成本。無(wu)(wu)(wu)刷電(dian)(dian)(dian)機(ji)的(de)結構(gou)特性(xing)決(jue)定了其壽(shou)命很(hen)長，在合理(li)的(de)使用范(fan)圍(wei)(wei)內，無(wu)(wu)(wu)刷電(dian)(dian)(dian)機(ji)基本上不需(xu)要(yao)額外的(de)增(zeng)加維護成本。適用范(fan)圍(wei)(wei)廣，控(kong)(kong)制(zhi)效果(guo)佳。無(wu)(wu)(wu)刷電(dian)(dian)(dian)機(ji)帶有(you)(you)一個控(kong)(kong)制(zhi)器(qi)（驅動器(qi)），可(ke)以(yi)提升(sheng)從(cong)(cong)簡單到(dao)復(fu)雜(za)的(de)控(kong)(kong)制(zhi)，并(bing)且(qie)可(ke)以(yi)提升(sheng)各種(zhong)通訊要(yao)求(qiu)，這(zhe)樣除了滿足一些常規的(de)機(ji)械動作以(yi)外還能(neng)執(zhi)行復(fu)雜(za)的(de)控(kong)(kong)制(zhi)命令(ling)。并(bing)且(qie)隨著近些年磁編碼(ma)器(qi)的(de)廣泛使用，可(ke)以(yi)代替一些簡易的(de)應(ying)用。

無刷電(dian)機(ji)(ji)(ji)缺點：摩(mo)擦大(da)(da)(da)(da)，損耗大(da)(da)(da)(da)，使用電(dian)機(ji)(ji)(ji)一(yi)段時間以(yi)后，需要打開電(dian)機(ji)(ji)(ji)來清理電(dian)機(ji)(ji)(ji)的碳(tan)刷，費(fei)時費(fei)力，維護強(qiang)度不(bu)亞于(yu)來一(yi)次(ci)家(jia)庭大(da)(da)(da)(da)掃除。發(fa)(fa)熱(re)大(da)(da)(da)(da)，壽命短由于(yu)有(you)刷電(dian)機(ji)(ji)(ji)的結(jie)構原(yuan)因，電(dian)刷和(he)換向器的接(jie)觸電(dian)阻(zu)很(hen)大(da)(da)(da)(da)，造(zao)成電(dian)機(ji)(ji)(ji)整(zheng)體電(dian)阻(zu)較大(da)(da)(da)(da)，容易發(fa)(fa)熱(re)，而永磁體是熱(re)敏元(yuan)件，如果溫度太(tai)高的話，磁鋼是會退磁的，使電(dian)機(ji)(ji)(ji)性能下降，影(ying)響有(you)刷電(dian)機(ji)(ji)(ji)的壽命。效率低，輸出(chu)(chu)功(gong)率小上(shang)面說到的有(you)刷電(dian)機(ji)(ji)(ji)發(fa)(fa)熱(re)問(wen)題(ti)，很(hen)大(da)(da)(da)(da)程度是因為電(dian)流做功(gong)在電(dian)機(ji)(ji)(ji)內部電(dian)阻(zu)上(shang)了，所以(yi)電(dian)能有(you)很(hen)大(da)(da)(da)(da)程度轉化為了熱(re)能，所以(yi)有(you)刷電(dian)機(ji)(ji)(ji)的輸出(chu)(chu)功(gong)率不(bu)大(da)(da)(da)(da)，效率也不(bu)高。

有(you)刷電(dian)(dian)機(ji)(ji)(ji)優點：結構簡單(dan)，有(you)刷電(dian)(dian)機(ji)(ji)(ji)機(ji)(ji)(ji)構簡單(dan)，生產加工容(rong)易(yi)，維(wei)修(xiu)方(fang)便，容(rong)易(yi)控(kong)(kong)制(zhi)(zhi)；直(zhi)(zhi)流(liu)(liu)電(dian)(dian)機(ji)(ji)(ji)還具有(you)響(xiang)應(ying)快(kuai)速(su)、較(jiao)大(da)的起動轉(zhuan)矩(ju)、從(cong)零轉(zhuan)速(su)至額(e)定轉(zhuan)速(su)具備可(ke)提供額(e)定轉(zhuan)矩(ju)的性能。運行(xing)(xing)(xing)平(ping)穩(wen)(wen)(wen)，起、制(zhi)(zhi)動效果好有(you)刷電(dian)(dian)機(ji)(ji)(ji)是通(tong)(tong)過調(diao)壓調(diao)速(su)，所以(yi)起動和(he)制(zhi)(zhi)動平(ping)穩(wen)(wen)(wen)，恒(heng)速(su)運行(xing)(xing)(xing)時(shi)也平(ping)穩(wen)(wen)(wen)。無刷電(dian)(dian)機(ji)(ji)(ji)通(tong)(tong)常(chang)是數字變頻控(kong)(kong)制(zhi)(zhi)，先將交流(liu)(liu)變成直(zhi)(zhi)流(liu)(liu)，直(zhi)(zhi)流(liu)(liu)再變成交流(liu)(liu)，通(tong)(tong)過頻率(lv)變化控(kong)(kong)制(zhi)(zhi)轉(zhuan)速(su)，所以(yi)無刷電(dian)(dian)機(ji)(ji)(ji)在起動和(he)制(zhi)(zhi)動時(shi)運行(xing)(xing)(xing)不平(ping)穩(wen)(wen)(wen)，振動大(da)，只有(you)在速(su)度(du)(du)恒(heng)定時(shi)才會(hui)平(ping)穩(wen)(wen)(wen)。控(kong)(kong)制(zhi)(zhi)精(jing)(jing)(jing)度(du)(du)高，有(you)刷電(dian)(dian)機(ji)(ji)(ji)通(tong)(tong)常(chang)和(he)減(jian)速(su)箱、譯碼器一起使用(yong)，使的電(dian)(dian)機(ji)(ji)(ji)的輸出功率(lv)更大(da)，控(kong)(kong)制(zhi)(zhi)精(jing)(jing)(jing)度(du)(du)更高，控(kong)(kong)制(zhi)(zhi)精(jing)(jing)(jing)度(du)(du)可(ke)以(yi)達到(dao)0.01毫(hao)米，幾(ji)乎可(ke)以(yi)讓運動部件停在任何想要的地方(fang)。所有(you)精(jing)(jing)(jing)密(mi)機(ji)(ji)(ji)床(chuang)都是采用(yong)直(zhi)(zhi)流(liu)(liu)電(dian)(dian)機(ji)(ji)(ji)控(kong)(kong)制(zhi)(zhi)精(jing)(jing)(jing)度(du)(du)。

有(you)(you)刷(shua)(shua)電(dian)機缺點：電(dian)刷(shua)(shua)和換(huan)向(xiang)器之間有(you)(you)摩擦，造成效率降低(di)、噪音增加(jia)、容易發熱，有(you)(you)刷(shua)(shua)電(dian)機的壽命要(yao)(yao)比(bi)無刷(shua)(shua)短幾倍。維護麻煩，需要(yao)(yao)不停(ting)的換(huan)電(dian)刷(shua)(shua)。因為電(dian)阻大，效率低(di)、輸出功率少(shao)。電(dian)刷(shua)(shua)和換(huan)向(xiang)器摩擦會引(yin)起火花，干擾大。