Dissipative control for linear discrete-time systems. (English) Zbl 0949.93068

Tan, Zhiqiang; Soh, Yeng Chai; Xie, Lihua

Automatica 35, No. 9, 1557-1564 (1999).

The paper considers the “equation + index” system \[ x_{k+1}= Ax_k+B_1u_k \]
\[ z_k=C_1x_k+ D_{11}u_k \]
\[ E(u,z,N)= \sum^N_0(z^*_k Qz_k+2x_k Su_k+ u^*_kRu_k). \] A review of dissipativity theory is given for such systems. Then one considers the two-input/two-output system \[ x_{k+1}= Ax_k+B_1 \omega_k+B_2u_k \]
\[ z_k=C_1x_k+ D_{11}\omega_k +D_{12}u_k \]
\[ y_k=C_2 x_k+D_{21} \omega_k. \] A Linear Matrix Inequalities (LMI) approach is used to obtain the feedback control \(u_k=Kx_k\) so that the resulting system should be dissipative and exponentially stable. An example is given.

Reviewer: Vladimir Răsvan (Craiova)

MSC:

93D15	Stabilization of systems by feedback
15A39	Linear inequalities of matrices
93D10	Popov-type stability of feedback systems
93C55	Discrete-time control/observation systems

Keywords:

discrete-time systems; feedback stabilization; linear matrix inequalities; dissipativity; feedback control