本文關(guān)鍵詞： 三容水箱系統(tǒng) 約束H_∞輸出反饋控制 干擾觀測(cè)器控制 實(shí)物實(shí)驗(yàn)　出處：《吉林大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：多容器流程系統(tǒng)在現(xiàn)代農(nóng)業(yè)、工業(yè)、化工、石油等重要領(lǐng)域中有著廣泛的應(yīng)用,如鍋爐、儲(chǔ)油罐、精饋塔等等,這些對(duì)象往往具有多輸入、多輸出、時(shí)變、強(qiáng)耦合、非線性等特點(diǎn),并且隨著設(shè)備的老化,在實(shí)際生產(chǎn)中容器可能會(huì)出現(xiàn)泄漏的情況。三容水箱系統(tǒng)能夠模擬多容器流程系統(tǒng)中的復(fù)雜對(duì)象,并且具有廣闊的應(yīng)用前景,因此本文對(duì)三容水箱系統(tǒng)的液位控制方法進(jìn)行了詳細(xì)的研究。本文主要進(jìn)行了以下幾個(gè)方面的研究:在Matlab/Simulink軟件環(huán)境下搭建三容水箱系統(tǒng)的仿真模型。根據(jù)三容水箱系統(tǒng)的結(jié)構(gòu)特點(diǎn)并聯(lián)系工程實(shí)踐,描述系統(tǒng)的控制目標(biāo)。研究約束H_∞輸出反饋控制方法,將其應(yīng)用于三容水箱系統(tǒng),使得水箱能夠跟蹤固定的液位高度,對(duì)漏水進(jìn)行處理,并且滿足控制輸入約束。研究基于干擾觀測(cè)器的控制方法(Disturbance Obersver Based Control,DOBC),將其應(yīng)用于三容水箱系統(tǒng),使得水箱在能夠跟蹤固定的液位高度和對(duì)漏水進(jìn)行處理的基礎(chǔ)上,還可以處理系統(tǒng)的高階未建模動(dòng)態(tài)和參數(shù)攝動(dòng)。針對(duì)以上兩種魯棒控制方法,本文分別進(jìn)行了仿真和實(shí)物實(shí)驗(yàn),結(jié)果表明這兩種方法均有效。在以上工作的基礎(chǔ)上,本文考慮使三容水箱系統(tǒng)跟蹤變化的液位高度,分別研究了基于微分平坦、多面體以及多次求解控制器的控制策略,通過仿真以及分析討論這三種方法的可行性。
[Abstract]:Multi-vessel process system is widely used in modern agriculture, industry, chemical industry, petroleum and other important fields, such as boiler, oil storage tank, fine feed tower and so on. These objects often have multi-input, multi-output, time-varying. Strong coupling, nonlinear and so on, and with the aging of the equipment, the container may leak in the actual production. The three-tank system can simulate the complex objects in the multi-vessel process system. And has a broad application prospects. Therefore, this paper has carried on the detailed research to the liquid level control method of the three-tank system. The simulation model of the three-tank system is built under the environment of Matlab/Simulink software. According to the structural characteristics of the three-tank system and the engineering practice. The control target of the system is described. The constrained H _ 鈭，

本文編號(hào)：1470057