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基于神经网络非线性时滞系统的鲁棒可靠控制器设计
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作者 潘晓宁 胡寿松 《南京航空航天大学学报》 EI CAS CSCD 北大核心 2003年第2期208-211,共4页
将一类非线性时滞控制系统中的非线性部分 ,用一个单隐层神经网络来近似代替 ,采用线性微分包含(LDI—— linear differential inclusion)的方法来线性化该非线性环节 ,对于线性化所产生的近似误差、时滞和执行机构故障作为系统的一部... 将一类非线性时滞控制系统中的非线性部分 ,用一个单隐层神经网络来近似代替 ,采用线性微分包含(LDI—— linear differential inclusion)的方法来线性化该非线性环节 ,对于线性化所产生的近似误差、时滞和执行机构故障作为系统的一部分设计可靠鲁棒控制器 ,相关的定理也一并给出。高阶微分和偏微分方程一般是用来解决这类非线性系统的主要方法 ,文章中提出的可靠鲁棒控制器设计方法克服了以上这些方法求解困难的缺点 ,仿真示例用设计好的可靠鲁棒控制器与常规极点配置法进行了比较 ,从而表明了这种方法的有效性。 展开更多
关键词 神经网络 非线性时滞系统 设计 线性微分包含 可靠鲁棒控制器
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保证内回路稳定的鲁棒可靠控制器设计
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作者 沈宁 王新民 +1 位作者 余翔 李俨 《系统仿真学报》 CAS CSCD 北大核心 2009年第15期4777-4781,共5页
鲁棒可靠控制器的设计是容错飞行控制系统研究的重要内容,设计思想就是建立系统的正常情况下的模型和故障情况下的模型,根据Lyapunov稳定性定理求得反馈增益K,使得其能保证正常情况和故障情况下都能满足一定水平的指标要求。基于参数依... 鲁棒可靠控制器的设计是容错飞行控制系统研究的重要内容,设计思想就是建立系统的正常情况下的模型和故障情况下的模型,根据Lyapunov稳定性定理求得反馈增益K,使得其能保证正常情况和故障情况下都能满足一定水平的指标要求。基于参数依赖Lyapunov方程和迭代线性矩阵不等式在直升机不确定性、H∞/LQ性能指标约束下提出直升机鲁棒可靠控制器设计方法,保证跟踪增广系统中内环系统的稳定性,通过仿真验证了该算法的有效性。 展开更多
关键词 可靠控制器 迭代线性矩阵不等式 参数依赖Lyapunov方程 直升机 内环系统
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ROBUST RELIABLE CONTROLLER DESIGN FOR A CLASS OF TIME-VARYING UNCERTAIN SYSTEMS
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作者 胡东 陈文华 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 1998年第2期28-33,共6页
The normal H ∞ control design deals with both plant modeling uncertainties and exogenous signal uncertainties by constructing a controller which stabilizes uncertain li near systems while satisfying an H ∞ norm ... The normal H ∞ control design deals with both plant modeling uncertainties and exogenous signal uncertainties by constructing a controller which stabilizes uncertain li near systems while satisfying an H ∞ norm bound constraint on disturbance attenuation for all admissible uncertainties. However, the control design may result in unsatisfactory performances or even instabilities in the event of sensor failures in practical plants. This paper focuses on the problem of the design of robust reliable H ∞ control for a class of time varying uncertainty system with sensor failures. The paper presents a novel technique which deal with this problem by solving three linear matrix inequalities (LMIs). The strict proof guarantees the feasibility of this approach. 展开更多
关键词 robust reliability sensor failure H control linear matrix inequalities (LMIs)
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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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