1X00093G06
在伺服驅(qū)動(dòng)器速度閉環(huán)中，電機(jī)轉(zhuǎn)子實(shí)時(shí)速度測(cè)量精度對(duì)于改善速度環(huán)
的轉(zhuǎn)速控制動(dòng)靜態(tài)特性至關(guān)重要。為尋求測(cè)量精度與系統(tǒng)成本的平衡，
一般采用增量式光電編碼器作為測(cè)速傳感器，與其對(duì)應(yīng)的常用測(cè)速方法
為M/T測(cè)速法。M/T測(cè)速法雖然具有一定的測(cè)量精度和較寬的測(cè)量范圍，
但這種方法有其固有的缺陷，主要包括：1）測(cè)速周期內(nèi)必須檢測(cè)到至
少一個(gè)完整的碼盤脈沖，限制了最低可測(cè)轉(zhuǎn)速；2）用于測(cè)速的2個(gè)控制
系統(tǒng)定時(shí)器開(kāi)關(guān)難以嚴(yán)格保持同步，在速度變化較大的測(cè)量場(chǎng)合中無(wú)法
保證測(cè)速精度。因此應(yīng)用該測(cè)速法的傳統(tǒng)速度環(huán)設(shè)計(jì)方案難以提高伺服
驅(qū)動(dòng)器速度跟隨與控制性能
1X00093G06
聯(lián)系人：郭先生
聯(lián)系電話：18971415643《優(yōu)先》
座機(jī)：027-83238871
傳真：207-61537051
QQ：810334512《優(yōu)先》
1X00093G06
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