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步進電機驅動器選型
步(bu)進(jin)電(dian)機驅動(dong)(dong)器(qi)(qi)操(cao)控(kong)系統(tong)首(shou)要由三部分組成(cheng):1、步(bu)進(jin)操(cao)控(kong)器(qi)(qi):人機接(jie)口、運(yun)動(dong)(dong)規劃、I/O操(cao)控(kong)。 2、驅動(dong)(dong)器(qi)(qi):脈沖分配、電(dian)流擴大(da)。 3、步(bu)進(jin)電(dian)機:驅動(dong)(dong)負載。
넶50 2023-08-28 -
步進電機能替代高成本的伺服電機嗎?
根據傳(chuan)統(tong)的(de)觀念,在需要(yao)速(su)度超過800RPM以及需要(yao)高動態(tai)響應(ying)的(de)應(ying)用(yong)中,伺(si)服控制系統(tong)性能更為出色。步(bu)進(jin)電(dian)機則更適(shi)合用(yong)于速(su)度較低(di)、低(di)到(dao)中等加速(su)度、需要(yao)較高保持(chi)轉矩的(de)應(ying)用(yong)。
넶27 2023-08-28 -
步進電機和閉環步進電機有什么區別?
步(bu)進電(dian)動(dong)機(ji)(ji)(ji)的(de)(de)(de)(de)控(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)方(fang)(fang)式(shi)一(yi)(yi)般(ban)分為開(kai)環(huan)控(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)與(yu)閉(bi)環(huan)控(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)兩(liang)種控(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)方(fang)(fang)式(shi),其中(zhong)開(kai)環(huan)控(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)步(bu)進電(dian)機(ji)(ji)(ji)最簡單的(de)(de)(de)(de)控(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)方(fang)(fang)式(shi)就(jiu)是(shi)玎環(huan)控(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)系(xi)統,在(zai)這(zhe)(zhe)樣(yang)的(de)(de)(de)(de)控(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)方(fang)(fang)式(shi)下(xia),步(bu)進電(dian)機(ji)(ji)(ji)控(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)脈沖(chong)的(de)(de)(de)(de)輸入(ru)并不依(yi)賴于轉子的(de)(de)(de)(de)位(wei)(wei)置(zhi),反而(er)是(shi)按一(yi)(yi)固(gu)定(ding)的(de)(de)(de)(de)規律發出其控(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)脈沖(chong),步(bu)進電(dian)機(ji)(ji)(ji)僅依(yi)靠這(zhe)(zhe)一(yi)(yi)系(xi)列既定(ding)的(de)(de)(de)(de)脈沖(chong)而(er)工(gong)(gong)作,這(zhe)(zhe)種控(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)方(fang)(fang)式(shi)由(you)于步(bu)進電(dian)機(ji)(ji)(ji)的(de)(de)(de)(de)獨(du)特性而(er)比較適合于控(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)步(bu)進電(dian)機(ji)(ji)(ji)。閉(bi)環(huan)控(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)是(shi)控(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)論的(de)(de)(de)(de)一(yi)(yi)個基本概(gai)念。指作為被控(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)的(de)(de)(de)(de)輸出以一(yi)(yi)定(ding)方(fang)(fang)式(shi)返回到作為控(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)的(de)(de)(de)(de)輸入(ru)端(duan),并對(dui)輸入(ru)端(duan)施加控(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)影(ying)響的(de)(de)(de)(de)一(yi)(yi)種控(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)關系(xi)。步(bu)進電(dian)動(dong)機(ji)(ji)(ji)的(de)(de)(de)(de)閉(bi)環(huan)控(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)是(shi)采(cai)用位(wei)(wei)置(zhi)反饋(kui)(kui)和(he)(或) 速度(du)反饋(kui)(kui)來(lai)確定(ding)與(yu)轉子位(wei)(wei)置(zhi)相適應的(de)(de)(de)(de)相位(wei)(wei)轉換,可(ke)大大改進步(bu)進電(dian)動(dong)機(ji)(ji)(ji)的(de)(de)(de)(de)性能。在(zai)閉(bi)環(huan)控(kong)(kong)(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)的(de)(de)(de)(de)步(bu)進電(dian)機(ji)(ji)(ji)系(xi)統中(zhong),或可(ke)在(zai)具(ju)有給(gei)定(ding)精確度(du)下(xia)跟蹤(zong)和(he)反饋(kui)(kui)時,擴大工(gong)(gong)作速度(du)范圍,或可(ke)在(zai)給(gei)定(ding)速度(du)下(xia)提(ti)高跟蹤(zong)和(he)定(ding)位(wei)(wei)精度(du),或可(ke)得到極(ji)限速度(du)指標和(he)極(ji)限精度(du)指標。
넶50 2023-08-28