Wireless control of passive systems subject to actuator constraints
Wireless control of passive systems subject to actuator constraints
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DOI：
10.1109/cdc.2008.4739118
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发表时间：
2008-12
期刊：
影响因子：
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通讯作者：
N. Kottenstette;P. Antsaklis
中科院分区：
文献类型：
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作者：
N. Kottenstette;P. Antsaklis
饱和等执行器约束会对网络控制系统施加严格的约束。例如，不稳定工厂的无线控制系统中的延迟与致动器约束相结合可能使系统不可能稳定。本文推导了执行器饱和（一种常见的无记忆非线性）与无源系统串联时导致无源性丧失的条件。然而，使用称为内积恢复块的非线性控制器，系统的整体无源性被恢复。此外，我们注意到，严格输入无源性和严格输出无源性可以恢复特定的部门的条件。最后，它示出了如何可以使用内积恢复块来维持l2 m稳定的无线控制网络。
Actuator constraints such as saturation can impose severe constraints on networked control systems. For instance delays in wireless control systems of unstable plants combined with actuator constraints may make it impossible to stabilize a system. In this paper the conditions are derived that show when actuator saturation, a common memoryless nonlinearity, in series with a passive system causes the loss of passivity. However, using a non-linear controller known as a inner-product recovery block, the overall passivity of the system is recovered. Furthermore, we note specific sector conditions in which strictly-input passivity and strictly-output passivity can be recovered. Finally, it is shown how the inner-product recovery block can be used to maintain an l2 m-stable wireless control network.