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一类非线性不确定时滞系统的可靠H^∞控制 被引量:1
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作者 李志虎 邵惠鹤 《上海交通大学学报》 EI CAS CSCD 北大核心 2001年第2期272-274,共3页
研究了一类非线性不确定动态时滞系统的鲁棒可靠 H∞ 控制问题 ,其中状态矩阵和状态迟延矩阵的参数不确定性是范数有界的 ,模型的非线性不确定性是增益有界的 ,而它们无需满足匹配条件 .基于 Lyapunov稳定性理论导出了执行器失效情形下... 研究了一类非线性不确定动态时滞系统的鲁棒可靠 H∞ 控制问题 ,其中状态矩阵和状态迟延矩阵的参数不确定性是范数有界的 ,模型的非线性不确定性是增益有界的 ,而它们无需满足匹配条件 .基于 Lyapunov稳定性理论导出了执行器失效情形下的可靠 H∞控制器存在的充分条件 ,通过求解一个线性矩阵不等式 (LMI)来设计控制律 .文中算例验证了该设计方法的有效性 . 展开更多
关键词 非线性时滞系统 不确定性 执行器失效 可靠H^∞控制
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H_∞ Robust Fault-Tolerant Controller Design for an Autonomous Underwater Vehicle’s Navigation Control System 被引量:4
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作者 程相勤 曲镜圆 +1 位作者 严浙平 边信黔 《Journal of Marine Science and Application》 2010年第1期87-92,共6页
In order to improve the security and reliability for autonomous underwater vehicle (AUV) navigation, an H∞ robust fault-tolerant controller was designed after analyzing variations in state-feedback gain Operating c... In order to improve the security and reliability for autonomous underwater vehicle (AUV) navigation, an H∞ robust fault-tolerant controller was designed after analyzing variations in state-feedback gain Operating conditions and the design method were then analyzed so that the control problem could be expressed as a mathematical optimization problem. This permitted the use of linear matrix inequalities (LMI) to solve for the Hv controller for the system. When considering different actuator failures, these conditions were then also mathematically expressed, allowing the H∞ robust controller to solve for these events and thus be fault-tolerant. Finally, simulation results showed that the H∞ robust fault-tolerant controller could provide precise AUV navigation control with strong robustness. 展开更多
关键词 AUV navigation control robust H∞ fault-tolerant control gain variations LMI
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