Adaptive control of stochastic Hammerstein systems with dead-zone input non-linearity

作者：Zhang Bi; Mao Zhizhong^*

来源：TRANSACTIONS OF THE INSTITUTE OF MEASUREMENT AND CONTROL, 2015, 37(6): 746-759.

DOI：10.1177/0142331214546521

• Adaptive control
• closed-loop stability
• coloured noise
• dead-zone non-linearity
• Hammerstein models

This article presents a new control scheme for H systems with symmetric dead-zone input non-linearity and coloured noise. Based on the parameterized H model, we derive a dead-zone compensating control law and a recursive estimator. Theoretical analysis shows that global convergence and closed-loop stability can be guaranteed using the proposed algorithms. What is more, theoretical results show that the output tracking error is convergent with a specific residue, which is related to the variance of the noise and the parameter estimate. Simulation results confirm that the proposed method leads to satisfactory output tracking performance.

• 出版日期2015-7
• 单位东北大学