The problem of estimating parameter of bilinear state-space system is considered in this paper.A gradient base...
ZHONG Lusheng 1,2,FAN Xiaoping 1,YANG Hui 2 1.College of Information Science and Engineering,Central South University,Changsha 410083,P.R.China2.College of Electrical and Electronic Engineering,East China Jiaotong University,Nanchang Jiangxi 330013,P.R.China
The problem of estimating parameter of LTI state-space system is addressed in this paper.A modified nonlinear ...
ZHONG Lusheng,YANG Hui,LU Rongxiu Sun Baohua Meng Shasha College of Electrical and Electronic Engineering,East China Jiaotong University, Nanchang Jiangxi 330013
In this paper,the identification problem of linear state-space models is considered for the rare earth extract...
ZHONG Lusheng~(1,2),FAN Xiaoping~1,YANG Hui~2 1.College of Information Science and Engineering,Central South University,Changsha 410083,China 2.College of Electrical and Electronic Engineering,East China Jiaotong University,Nanchang Jiangxi 330013
In this paper, a multivariable direct adaptive controller using multiple models without minimum phase assumption is presented to improve the transient response when the parameters of the system jump abruptly. The controller is composed of multiple fixed controller models, a free-running adaptive con- troller model and a re-initialized adaptive controller model. The fixed controller models are derived from the corresponding fixed system models directly. The adaptive controller models adopt the direct adaptive algorithm to reduce the design calculation. At every instant, the optimal controller is chosen out according to the switching index. The interaction of the system is viewed as the measured distur- bance which is eliminated by the choice of the weighing polynomial matrix. The global convergence is obtained. Finally, several simulation examples in a wind tunnel experiment are given to show both effectiveness and practicality of the proposed method. The significance of the proposed method is that it is applicable to a non-minimum phase system, adopting direct adaptive algorithm to overcome the singularity problem during the matrix calculation and realizing decoupling control for a multivariable system.
