電梯液壓系統的設計
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- 電梯液壓系統的設計目 錄
一、設計題目及要求···············································1
1.1設計題目簡介····················································1
1.2設計要求························································2
二、設計目的及意義···············································3
三、建立數學模型·················································3
3.1電梯上行的數學模型··············································4
3.1.1 泵的數學模型·················································4
3.1.2 單向閥的數學模型·············································4
3.1.3 比例流量閥的數學模型·········································5
3.1.4 液壓橋的數學模型·············································6
3.1.5 液控單向閥的模型·············································7
3.1.6 液壓缸的數學模型·············································7
3.2 電梯下行的數學模型·············································9
四、電梯液壓系統的動態仿真······································9
4.1電梯上行時液壓系統的仿真分析·····································9
4.1.1 供油子系統的仿真模型··········································10
4.1.2 液壓橋和液控單向閥組成調整子系統的仿真模型····················10
4.1.3 三級同步液壓缸構成運行系統的仿真模型··························11
4.1.4 電梯上行液壓系統的仿真········································13
4.2 電梯上行液壓缸的速度曲線········································14
4.3 電梯上行液壓缸的位移仿真曲線····································15
五、電梯液壓系統的PID控制······································16
5.1 PID控制原理····················································16
5.2 位置PID控制算法················································17
5.3 干擾作用下控制系統的設計·········································18
5.4 數字PID控制算法的改進··········································19
5.5 液壓電梯液壓系統的PID控制器的設計與仿真························20
5.5.1 PID控制器設計···············································20
5.5.2 采樣周期的確定··············································21
5.5.3 PID控制器參數整定·········································22
5.5.4 電梯液壓系統PID控制器仿真··································22
六、控制器的單片機實現方法·····································27
6.1 單片機控制器軟件任務···········································27
6.2程序設計的確定··················································27
6.3電梯控制模塊程序設計············································28
6.4 現場調試模塊程序設計···········································30
七、工作總結及心得體會··········································30
參考文獻··························································30
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