H∞ tracking control of coupled spatiotemporal chaos based on fuzzy models

• 来源期刊: 中国物理（英文版）
• 关键词: fuzzy model coupled spatiotemporal chaos H∞ fuzzy tracking control linear matrix inequalities (LMI)
• 年，卷（期）: 2005,（7）
• 页码范围: 1347-1351
• 页数: 5页
• 语种: 英文

摘要

Due to the interactions among coupled spatiotemporal subsystems, it is difficult to achieve the tracking control of the coupled spatiotemporal chaos. However, every subsystem of the coupled spatiotemporal chaos can be approximated by a set of fuzzy models, of which each represents a linearized model of the subsystem corresponding to the operating point of the controlled system. Based on these fuzzy models, an H∞ fuzzy tracking control scheme is suggested,where a linear matrix inequalities (LMI) is employed to represent the feedback controller. The parameters of controller are obtained by using convex optimization techniques of LMI. The model reference tracking control of the coupled spatiotemporal chaos is achieved, and the stability of the system is also guaranteed. The tracking performance is tested by simulation as an example.