解析直線電機的控制技術
控制技術是直線電機設計的另一個關鍵和要點。直驅式伺服系統在工作時負載變化,負載的變化會直接反映在電機上:外部干擾,如工件質量和刀具,切削力的變化等,也會直接影響到電機的性能,從而產生影響。這些因素給直線電機的控制帶來了困難。在控制系統中必須對這些干擾進行控制或應對,否則容易造成直線電機控制系統的不穩定。

總體而言(yan),控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)器的(de)設計(ji)應(ying)(ying)滿足以下要求:穩定跟進精(jing)度高、動(dong)態(tai)響應(ying)(ying)快、抗干擾能(neng)力強、魯棒性好。不(bu)同(tong)(tong)的(de)直線(xian)電機或不(bu)同(tong)(tong)的(de)應(ying)(ying)用場(chang)合需求不(bu)同(tong)(tong)的(de)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)系統(tong),應(ying)(ying)按照具體情況采用合適(shi)的(de)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)方法(fa)。當前(qian),直線(xian)伺服電機所采用的(de)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)策略主要有傳統(tong)的(de)PID控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)和解耦控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi),現代控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)方法(fa)如非線(xian)性控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)、自適(shi)應(ying)(ying)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)、滑(hua)模變結構控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)、控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)、智能(neng)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)如模糊控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)、人工智能(neng)(如人工神經(jing)網(wang)絡系統(tong))控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)等。
伴隨自動(dong)化控(kong)(kong)制技(ji)術(shu)和計(ji)算(suan)機技(ji)術(shu)的快速發(fa)展,多種自動(dong)化控(kong)(kong)制系統對定位精度的要求越來越高,直線電(dian)機作為傳(chuan)統的旋轉(zhuan)電(dian)機,驅動(dong)機構轉(zhuan)換機制,已經(jing)不能滿足現(xian)代控(kong)(kong)制要求。
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