MOTOROLA MVME167-02A (MISSING CPU CHIP) WITH 8MB PARITY MEMORY, 1 LAN INTERFACE感應電動機是典型的多變量、非線性系統,再加上變頻裝置,整個系統就更加復雜。本文選擇感應電動機變頻調速系統作為控制象,它的數學模型進行了可逆性分析,使用神經網絡構建逆控制器感應電動機變頻調速系統進行控制。神經網絡逆控制器是將逆系統方法和神經網絡相結合,劉國海男,964年生,博士,江蘇大學電氣信息工程學院教授、副院長,研究方向為電機控制、復雜系統控制等。

用BP網來產品近象的a階逆系統,然后與象串聯起來,構成個復合偽線性系統,再用已有的線性系統的設計方法來設計控制系統。論文運用神經網絡逆系統方法實際的感應電動機變頻調速系統分別進行了空載/滿載起動試驗、突加/突減負載試驗和跟蹤試驗驗證。,將逆系統串接在原系統之前構成階偽線性系統,這樣整個復合系統就轉化為少二廠型偽線性單輸入單輸出系統。
機組變工況下仿真曲線圖仿真結果表明,該控制系統有效地解決了鍋爐非線性、大時滯、負荷干擾機組運行的影響。不僅在正常負荷穩定情況下,主汽壓能保持相當穩定,并且在機組調峰,燃燒率發生較大變化情況下,控制機組能速跟蹤負荷,有效地提高了系統的控制品質,滿足了實際控制的要求,改善機組調峰性能有重要的現實意義。翻轉課堂中知識內化過程及教學模式設計*□趙興龍習場所的變化不能完全影響,或者說替代不了真實的師生互動的教學過程,也還不足以讓教和學的關系發生本質變化。翻轉課堂的基本要義是教學流程變革所帶來的知識傳授的提前和知識內化的優化。從這個意義上說,流程要素僅是定義翻轉課堂的重要要素之。
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