引用本文:李训经.关于分布参数系统最佳调节器的稳定裕度[J].控制理论与应用,1986,3(1):76~82.[点击复制]
Li Xunjing.MARGIN OF STABILITY FOR THE OPTIMAL REGULATOR OF DISTRIBUTED PARAMETER SYSTEMS[J].Control Theory and Technology,1986,3(1):76~82.[点击复制]
关于分布参数系统最佳调节器的稳定裕度
MARGIN OF STABILITY FOR THE OPTIMAL REGULATOR OF DISTRIBUTED PARAMETER SYSTEMS
摘要点击 707  全文点击 357  投稿时间:1984-03-06  
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DOI编号  
  1986,3(1):76-82
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作者单位
李训经 复旦大学 
中文摘要
      本文直接证明 定理 假设 1. x(?)是dx(t)/dt=Ax(t)+Bu(t),x(0)=x0的mild解,其中A是Hilbert空间X上的强连续半群eAt(t≥0)的母元,u(?)∈L2([0,+∞],Z),B∈L(Z,X); 2. 当∫∞0║u(t)║2dt<+∞和∫∞0║Lx(t)║2dt<+∞时 ∫+∞0║x(t)║2dt<+∞; 3. P≥0满足ATP+PA+LTL-PBR-1BTP=0和 ∫+∞0║e(A-BR-1BTP)t║2dt<+∞,其中R≥0; 4. n(?):Z→Z是强连续的,且存在k≥0和β>0使得 ∫+∞0║n(u(t))║2dt≤k∫+∞0║u(t)║2dt, 1+β/2∫+∞0dt≤∫+∞0dt. 那末方程dx^(t)/dt=Ax^(t)+Bn(-R-1BTPx^(t))的mild解是渐近稳定的。
英文摘要
      The following theorem is proved directly. Theorem Assume that 1. x(t)is the mild solution of equation dx(t)/dt=Ax(t)+Bu(t),x(0)=x0, where A is the infinitesimal generator of a strongly continuous semigroup eAt(t≥0)on Hilbert space X, u(?)∈L2([0,+∞],Z)and B∈L(Z,X); 2. ∫∞0║u(t)║2dt<+∞ and ∫∞0║Lx(t)║2dt<+∞imply ∫+∞0║x(t)║2dt<+∞; 3. P≥0satisfies ATP+PA+LTL-PBR-1BTP=0 and ∫+∞0║e(A-BR-1BTP)t║2dt<+∞, where R≥0; 4. n(?):Z→Z continuous and there exist constants k≥0 and β>0 such that ∫+∞0║n(u(t))║2dt≤k∫+∞0║u(t)║2dt, 1+β/2∫+∞0dt≤∫+∞0dt. Then the mild solution of equation dx^(t)/dt=Ax^(t)+Bn(-R-1BTPx^(t)) is asymptotically stable. This theorem has been pointed out by Tolle, but there are some mistakes in the proof of Tolle.