眾所(suo)周知，控制(zhi)(zhi)器是一種能夠(gou)控制(zhi)(zhi)電(dian)動(dong)機(ji)的啟動(dong)、調(diao)速、制(zhi)(zhi)動(dong)和反向的主令裝置；其(qi)的種類有(you)：直(zhi)流(liu)無(wu)(wu)刷(shua)(shua)(shua)(shua)電(dian)機(ji)控制(zhi)(zhi)器、無(wu)(wu)刷(shua)(shua)(shua)(shua)電(dian)機(ji)控制(zhi)(zhi)器以及有(you)刷(shua)(shua)(shua)(shua)電(dian)機(ji)控制(zhi)(zhi)器等(deng)(deng)等(deng)(deng)；對此(ci)就(jiu)有(you)朋友問了：直(zhi)流(liu)無(wu)(wu)刷(shua)(shua)(shua)(shua)電(dian)機(ji)控制(zhi)(zhi)器除了用于(yu)(yu)直(zhi)流(liu)無(wu)(wu)刷(shua)(shua)(shua)(shua)電(dian)機(ji)，還能用于(yu)(yu)其(qi)他(ta)地方嗎？換(huan)句(ju)話說也就(jiu)是直(zhi)流(liu)無(wu)(wu)刷(shua)(shua)(shua)(shua)電(dian)機(ji)控制(zhi)(zhi)器可以通用嗎？那(nei)我們(men)先(xian)來了解一下直(zhi)流(liu)無(wu)(wu)刷(shua)(shua)(shua)(shua)電(dian)機(ji)是什么吧：
直(zhi)流無刷電(dian)(dian)機(ji)是同(tong)步電(dian)(dian)機(ji)的(de)(de)一種，也就是說電(dian)(dian)機(ji)轉(zhuan)(zhuan)子的(de)(de)轉(zhuan)(zhuan)速(su)受電(dian)(dian)機(ji)定子旋轉(zhuan)(zhuan)磁場的(de)(de)速(su)度及轉(zhuan)(zhuan)子極(ji)(ji)數(P)影響：N=120．f / P。在轉(zhuan)(zhuan)子極(ji)(ji)數固定情況下，改變定子旋轉(zhuan)(zhuan)磁場的(de)(de)頻率就可以改變轉(zhuan)(zhuan)子的(de)(de)轉(zhuan)(zhuan)速(su)。
直(zhi)流無刷(shua)電(dian)(dian)(dian)機是將同(tong)步電(dian)(dian)(dian)機加(jia)上(shang)電(dian)(dian)(dian)子式控制(zhi)(zhi)(驅動器)，控制(zhi)(zhi)定子旋轉(zhuan)(zhuan)(zhuan)(zhuan)磁場的(de)(de)頻(pin)率 并將電(dian)(dian)(dian)機轉(zhuan)(zhuan)(zhuan)(zhuan)子的(de)(de)轉(zhuan)(zhuan)(zhuan)(zhuan)速回授(shou)至控制(zhi)(zhi)中心反(fan)復校正，以期達到接近直(zhi)流電(dian)(dian)(dian)機特性(xing)的(de)(de)方(fang)式；也就(jiu)是說(shuo)直(zhi)流無刷(shua)電(dian)(dian)(dian)機能夠(gou)在額定負載范(fan)圍內當負載變化時仍可以控制(zhi)(zhi)電(dian)(dian)(dian)機轉(zhuan)(zhuan)(zhuan)(zhuan)子維持一(yi)定的(de)(de)轉(zhuan)(zhuan)(zhuan)(zhuan)速。對無刷(shua)直(zhi)流電(dian)(dian)(dian)機轉(zhuan)(zhuan)(zhuan)(zhuan)速的(de)(de)控制(zhi)(zhi)即可采用開環(huan)控制(zhi)(zhi)，也可采用閉環(huan)控制(zhi)(zhi)。
因此直(zhi)(zhi)流(liu)無刷(shua)電(dian)(dian)機也是屬于永磁無刷(shua)同步電(dian)(dian)機類，其直(zhi)(zhi)流(liu)無刷(shua)電(dian)(dian)機控(kong)制(zhi)器只能(neng)應用于直(zhi)(zhi)流(liu)無刷(shua)電(dian)(dian)機；其功(gong)能(neng)參數、型號(hao)、電(dian)(dian)源電(dian)(dian)壓、輸(shu)出功(gong)率、相位(wei)角度、有(you)無霍耳開關、光電(dian)(dian)開關或(huo)自識別功(gong)能(neng)、等(deng)等(deng)必須一致。所以直(zhi)(zhi)流(liu)無刷(shua)電(dian)(dian)機控(kong)制(zhi)器不能(neng)通用。
以上就是今天(tian)要與大家分享的內容了，對(dui)于無刷電機控制器為何會壞掉？大家可(ke)以檢(jian)查兩方(fang)面：第一無刷(shua)電(dian)機控(kong)制器是(shi)否溫(wen)度過高，將功率管“燒”壞(huai)；第二是(shi)否電(dian)機本身設(she)計的不好，導致無刷(shua)電(dian)機控(kong)制器的MOS管壞(huai)掉。
