Lurie型直接控制系统的绝对稳定性

Absolute stability of direct control systems of Lurie type

Lurie型控制系统是一类非常典型的非线性控制系统,具有广泛的实际工程应用背景.本文利用Popov频域法,研究了一类Lurie型直接控制系统的绝对稳定性.在系统矩阵无对角线相等情形假设的一般条件下,给出了该类系统绝对稳定的一些充分必要条件.这些结论推广了前人所取得的研究成果.

Lurie control system is a kind of typical nonlinear control systems with wide application background. The absolute stability of direct control systems of Lurie type is studied by Popov frequency criterion in this paper. Without assuming that the system matrix has equal diagonal elements, some necessary and sufficient conditions for absolute stability are obtained.The conclusions thus generalize the corresponding results of existing research.