10250T33236;
10250T33236現貨;
10250T33236供應。
交流電動機變頻調整控制方法的進展主要體現在由標量控制向高動態性能的矢量控制與直接轉矩控制發展和開發無速度傳感器的矢量控制和直接轉矩控制系統方面。
微處理器的進步使數字控制成為現代控制器的發展方向。運動控制系統是快速系統,特別是交流電動機高性能的控制需要存儲多種數據和快速實時處理大量信息。近幾年來,國外各至公司紛紛推出以DSP(數字信號處理器)為基礎的內核,配以電機控制所需的外圍功能電路,集成在單一芯片內的稱為DSP單片電機控制器,價格大大降低,體積縮小,結構緊湊,使用便捷,可靠性進步。DSP和普通的單片機相比,處理數字運算能力增強10~15倍,可確保系統有更優越的控制性能。數字控制使硬件簡化,柔性的控制算法使控制具有很大的靈活性,可實現復雜控制規律,使現代控制理論在運動控制系統中應用成為現實,易于與上層系統連接進行數據傳輸,便于故障診斷、加強保護和監視功能,使系統智能化(如有些變頻用具有自調整功能)。
21、吾日三省乎吾身。為人謀而不忠乎?與朋友交而不信乎?傳不習乎?——《論語》
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