機(ji)(ji)(ji)(ji)器(qi)(qi)(qi)人(ren)電(dian)機(ji)(ji)(ji)(ji)驅(qu)(qu)動器(qi)(qi)(qi)用(yong)(yong)來使(shi)機(ji)(ji)(ji)(ji)器(qi)(qi)(qi)人(ren)發出動作(zuo)的動力機(ji)(ji)(ji)(ji)構(gou)。機(ji)(ji)(ji)(ji)器(qi)(qi)(qi)人(ren)驅(qu)(qu)動器(qi)(qi)(qi)可將電(dian)能、液(ye)壓能和(he)氣壓能轉化為機(ji)(ji)(ji)(ji)器(qi)(qi)(qi)人(ren)的動力。包(bao)括直流伺服電(dian)機(ji)(ji)(ji)(ji)、步(bu)進電(dian)機(ji)(ji)(ji)(ji)和(he)交流伺服電(dian)機(ji)(ji)(ji)(ji)；常用(yong)(yong)的機(ji)(ji)(ji)(ji)器(qi)(qi)(qi)人(ren)電(dian)機(ji)(ji)(ji)(ji)驅(qu)(qu)動器(qi)(qi)(qi)有如下幾(ji)種：

快貓下(xia)載地址(zhi):1.直(zhi)流伺服電動機驅動器

直(zhi)(zhi)流驅(qu)(qu)動(dong)(dong)器(qi)多采用脈(mo)寬(kuan)調制(PWM)伺(si)服驅(qu)(qu)動(dong)(dong)器(qi)，通過改變脈(mo)沖寬(kuan)度(du)來(lai)改變加在電動(dong)(dong)機(ji)電樞兩端的(de)平均電壓，從而(er)改變電動(dong)(dong)機(ji)的(de)轉速(su)。PWM伺(si)服驅(qu)(qu)動(dong)(dong)器(qi)具有調速(su)范圍寬(kuan)、低速(su)特(te)性好、響應快、效(xiao)率高、過載能力(li)強等特(te)點，在工業機(ji)器(qi)人中常作為(wei)直(zhi)(zhi)流伺(si)服電動(dong)(dong)機(ji)驅(qu)(qu)動(dong)(dong)器(qi)。

快貓下載地址(zhi):2.同步式交流伺服電動(dong)機驅動(dong)器(qi)

同(tong)(tong)直流(liu)伺(si)(si)服(fu)(fu)(fu)電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)驅(qu)動(dong)(dong)系統(tong)相比，同(tong)(tong)步式交流(liu)伺(si)(si)服(fu)(fu)(fu)電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)驅(qu)動(dong)(dong)器(qi)(qi)具(ju)有(you)轉(zhuan)(zhuan)矩轉(zhuan)(zhuan)動(dong)(dong)慣(guan)量(liang)比高、無(wu)電(dian)(dian)(dian)刷及換向火花(hua)等優點(dian)，在(zai)工業機(ji)(ji)器(qi)(qi)人(ren)中得到廣(guang)泛應用。同(tong)(tong)步式交流(liu)伺(si)(si)服(fu)(fu)(fu)電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)驅(qu)動(dong)(dong)器(qi)(qi)通(tong)常采用電(dian)(dian)(dian)流(liu)型脈寬調制(zhi)(PWM)相逆變器(qi)(qi)和具(ju)有(you)電(dian)(dian)(dian)流(liu)環(huan)為(wei)(wei)內環(huan)、速(su)度環(huan)為(wei)(wei)外環(huan)的多(duo)閉環(huan)控(kong)制(zhi)系統(tong)，以(yi)實現對三相永磁同(tong)(tong)步伺(si)(si)服(fu)(fu)(fu)電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)的電(dian)(dian)(dian)流(liu)控(kong)制(zhi)。根據其工作原理(li)、驅(qu)動(dong)(dong)電(dian)(dian)(dian)流(liu)波形(xing)和控(kong)制(zhi)方式的不(bu)同(tong)(tong)，它又(you)可分為(wei)(wei)兩種伺(si)(si)服(fu)(fu)(fu)系統(tong)：

快貓下載地址:a.矩形波(bo)電流(liu)(liu)驅動的永磁交(jiao)流(liu)(liu)伺服系統。

快貓(mao)下載地址:b.正弦波電流(liu)驅動的永(yong)磁(ci)交流(liu)伺服系(xi)統。

采(cai)用(yong)矩(ju)形波電(dian)流驅(qu)動的(de)永(yong)磁(ci)交流伺(si)服(fu)電(dian)動機(ji)稱(cheng)為無刷直流伺(si)服(fu)電(dian)動機(ji)，采(cai)用(yong)正弦波電(dian)流驅(qu)動的(de)永(yong)磁(ci)交流伺(si)服(fu)電(dian)動機(ji)稱(cheng)為無刷交流伺(si)服(fu)電(dian)動機(ji)。

快貓下載地址(zhi):3.步進電動機驅動器

步進電(dian)(dian)動(dong)(dong)機是將電(dian)(dian)脈(mo)(mo)沖信號變(bian)換為相(xiang)應(ying)的角位移或(huo)直線(xian)位移的元件(jian)，它(ta)的角位移和(he)線(xian)位移量與脈(mo)(mo)沖數成(cheng)正比(bi)。轉(zhuan)速或(huo)線(xian)速度與脈(mo)(mo)沖頻率(lv)(lv)成(cheng)正比(bi)。在負載能力的范圍內，這些關系不因電(dian)(dian)源電(dian)(dian)壓、負載大小、環境條(tiao)件(jian)的波動(dong)(dong)而變(bian)化，誤差不長期積累，步進電(dian)(dian)動(dong)(dong)機驅動(dong)(dong)系統可以(yi)在較寬的范圍內，通(tong)過改變(bian)脈(mo)(mo)沖頻率(lv)(lv)來調(diao)速，實現快速起(qi)動(dong)(dong)、正反轉(zhuan)制(zhi)動(dong)(dong)。