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具有饱和输入的对称循环组合系统的镇定 总被引:4,自引:0,他引:4
本文给出了具有饱和输入的对称循环组合系统可利用线性反馈半全局镇定及利用非线性反馈全局镇定的一个充要条件,并且证明其线性反馈控制律可以通过求解若干个低阶的代数Riccati方程得到。 相似文献
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Dynamic Surface Control of Constrained Hypersonic Flight Models with Parameter Estimation and Actuator Compensation 总被引:3,自引:0,他引:3
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Fuchun Sun 《Asian journal of control》2014,16(1):162-174
In this paper, the robust adaptive controller is investigated for the longitudinal dynamics of a generic hypersonic flight vehicle. The proposed methodology addresses the issue of controller design and stability analysis with respect to parametric model uncertainty and input saturations for the control‐oriented model. The velocity and attitude subsystems are transformed into the linearly parameterized form. Based on the parameter projection estimation, the dynamic inverse control is proposed via the back‐stepping scheme. In order to avoid the problem of “explosion of complexity,” by introducing a first‐order filtering of the synthetic input at each step, the dynamic surface control is designed. The closed‐loop system achieves uniform ultimately bounded stability. The compensation design is employed when the input saturations occur. Simulation results show that the proposed approach achieves good tracking performance. 相似文献
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具有输入饱和特性的中型足球机器人运动控制研究 总被引:3,自引:0,他引:3
研究了具有输入饱和特性的全自主中型足球机器人的运动控制问题,建立了足球机器人的运动学模型,基于Lyapunov稳定性条件研究了足球机器人对足球跟踪的自主控制算法,实现了足球机器人在赛场上的高精度运动控制,实验进一步证明了算法的鲁棒性。 相似文献
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针对挠性卫星在飞行过程中存在推力器故障、控制输入饱和受限以及外部干扰的姿态控制问题,提出了一类基于变结构控制的鲁棒容错控制设计方法.该设计在继承变结构控制的优点的同时,显式地引入推力器输出的饱和幅值,以确保控制输出在其要求界的范围内.同时,充分利用星上推力器的硬件冗余以实现对部分推力器故障的容错,这种思想的引入使得所设计的控制器对故障具有很强的自适应能力,而且对设计者而言,推力器故障信息不需要进行在线的检测和分离.最后,将该控制器应用于某型卫星姿态调节控制,仿真结果表明该控制器能有效地抑制外部干扰、挠性结构的振动和推力器故障的约束,在实现姿态调节的同时,保证其控制输出满足饱和受限界的要求,具有较好的控制性能. 相似文献
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Global consensus for discrete-time multi-agent systems with input saturation constraints 总被引:1,自引:0,他引:1
In this paper, we consider the global consensus problem for discrete-time multi-agent systems with input saturation constraints under fixed undirected topologies. We first give necessary conditions for achieving global consensus via a distributed protocol based on relative state measurements of the agent itself and its neighboring agents. We then focus on two special cases, where the agent model is either neutrally stable or a double integrator. For the neutrally stable case, any linear protocol of a particular form, which solves the consensus problem for the case without input saturation constraints, also solves the global consensus problem for the case with input saturation constraints. For the double integrator case, we show that a subset of linear protocols, which solve the consensus problem for the case without saturation constraints, also solve the global consensus problem for the case with input saturation constraints. The results are illustrated by numerical simulations. 相似文献