Journal of Systems Engineering and Electronics ›› 2007, Vol. 18 ›› Issue (3): 566-576.
• CONTROL THEORY AND APPLICATION • Previous Articles Next Articles
Chen Zonghai, Zhang Haitao, Li Ming & Xiang Wei
Online:
Published:
Abstract:
Two complex properties, varying time-delay and block-oriented nonlinearity, are very common in chemical engineering processes and not easy to be controlled by routine control methods. Aimed at these two complex properties, a novel adaptive control algorithm the basis of nonlinear OFS (orthonormal functional series) model is proposed. First, the hybrid model which combines OFS and Volterra series is introduced. Then, a stable state feedback strategy is used to construct a nonlinear adaptive control algorithm that can guarantee the closed-loop stability and can track the set point curve without steady-state errors. Finally, control simulations and experiments on a nonlinear process with varying time-delay are presented. A number of experimental results validate the efficiency and superiority of this algorithm.
Chen Zonghai, Zhang Haitao, Li Ming & Xiang Wei. Adaptive control method for nonlinear time-delay processes[J]. Journal of Systems Engineering and Electronics, 2007, 18(3): 566-576.
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