液位控制系統設計
液位控制系統設計
摘要： 本文詳細敘述了一種液位控制系統試驗裝置的設計與研制。該試驗裝置設置有水槽以及相應的檢測和執行機構，通過適當組合，可以提供各種液位試驗對象。針對 該試驗裝置，采用單片機編程技術設計開發了液位控制系統的軟件平臺。不同對象模型的各種控制算法以獨立的函數形式存在，方便模型和算法的更改及擴展。在該試驗裝置和軟件平臺的基礎上，實現了液位模型的數字PID控制，該系統還大量的'使用了PLC控制器，從而使系統的穩定性和安全性大大提高。同時對各種經典和現代控制方法進行了比較分析。論文中為設計和實現的多級液位控制試驗裝置以及相應軟件為探索和驗證各種先進的控制方法提供了一個良好平臺。
關鍵字：液位控制 ；PID控制 ；PLC控制 The Design of Liquid-level Control System
Abstract： This thesis describes the development of experimented equipment, which has tri-stage tank, sensors, and actuators-Multi-stage Liquid-level Control System. The advantage of this equipment is that a variety of single-stage and multi-stage liquid-level control objects can be offered nimbly by adequate constructions. For this experimented equipment, the programming technology has been used to develop the system software platform. Different control algorithms are substantive functions and convenient for modification and expansion. Based on the experimented equipment and system software platform, we have carried out the digital PID control of the liquid-level model. And we use a lot of PLC controllers in this system. So the stability and security of the system are improved rapidly. We have compared and analyzed many kinds of classical and modern control systems. In addition, these control method shave been compared and analyzed. For researching multiple advanced control algorithms, this experimented equipment and system software have offered an excellent platform.
Keywords：Liquid-level control；PID control；PLC control
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