液位控制系統(tǒng)設(shè)計(jì)

液位控制系統(tǒng)設(shè)計(jì)
摘要： 本文詳細(xì)敘述了一種液位控制系統(tǒng)試驗(yàn)裝置的設(shè)計(jì)與研制。該試驗(yàn)裝置設(shè)置有水槽以及相應(yīng)的檢測(cè)和執(zhí)行機(jī)構(gòu)，通過(guò)適當(dāng)組合，可以提供各種液位試驗(yàn)對(duì)象。針對(duì) 該試驗(yàn)裝置，采用單片機(jī)編程技術(shù)設(shè)計(jì)開發(fā)了液位控制系統(tǒng)的軟件平臺(tái)。不同對(duì)象模型的各種控制算法以獨(dú)立的函數(shù)形式存在，方便模型和算法的更改及擴(kuò)展。在該試驗(yàn)裝置和軟件平臺(tái)的基礎(chǔ)上，實(shí)現(xiàn)了液位模型的數(shù)字PID控制，該系統(tǒng)還大量的'使用了PLC控制器，從而使系統(tǒng)的穩(wěn)定性和安全性大大提高。同時(shí)對(duì)各種經(jīng)典和現(xiàn)代控制方法進(jìn)行了比較分析。論文中為設(shè)計(jì)和實(shí)現(xiàn)的多級(jí)液位控制試驗(yàn)裝置以及相應(yīng)軟件為探索和驗(yàn)證各種先進(jìn)的控制方法提供了一個(gè)良好平臺(tái)。
關(guān)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