具有多干擾的非線性時(shí)變時(shí)滯關(guān)聯(lián)系統(tǒng)的復(fù)合分層抗干擾控制
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本文關(guān)鍵詞:具有多干擾的非線性時(shí)變時(shí)滯關(guān)聯(lián)系統(tǒng)的復(fù)合分層抗干擾控制 出處:《系統(tǒng)科學(xué)與數(shù)學(xué)》2014年12期 論文類型:期刊論文
更多相關(guān)文章: 關(guān)聯(lián)系統(tǒng) 多干擾 時(shí)變時(shí)滯 基于干擾觀測器的控制 H_∞控制
【摘要】:針對一類帶有多干擾的非線性時(shí)變時(shí)滯關(guān)聯(lián)系統(tǒng),考慮了復(fù)合抗干擾控制器設(shè)計(jì)問題.復(fù)合抗干擾控制器的設(shè)計(jì)主要結(jié)合了基于干擾觀測器的控制方法(Disturbance observer based control,DOBC)和H_∞控制方法.系統(tǒng)受到的干擾可以分為兩類:第一類干擾由外部系統(tǒng)描述,并且與控制輸入在同一通道;第二類干擾假定滿足有界H_2范數(shù).設(shè)計(jì)干擾觀測器估計(jì)第一類干擾,并利用干擾估計(jì)值進(jìn)行前饋補(bǔ)償;利用H_∞控制方法對第二類干擾進(jìn)行衰減.利用Lyapunov函數(shù)理論分析了閉環(huán)系統(tǒng)的穩(wěn)定性,并以線性矩陣不等式的形式給出了可解的時(shí)滯依賴條件.最后,利用數(shù)值仿真驗(yàn)證了所提方法的有效性.
[Abstract]:For a class of nonlinear time-varying time-delay correlated systems with multiple disturbances. The design of composite anti-jamming controller is mainly combined with the control method based on disturbance observer (. Disturbance observer based control. The disturbance of the system can be divided into two categories: the first type of disturbance is described by the external system and is in the same channel as the control input; The second kind of disturbance is assumed to satisfy the bounded H _ s _ 2 norm. A disturbance observer is designed to estimate the first type of disturbance and feedforward compensation is performed by using the disturbance estimation value. The second kind of disturbance is attenuated by H _ 鈭,
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