Reliable Robust Control for the System with Input Saturation Based on Gain Scheduling

Reliable Robust Control for the System with Input Saturation Based on Gain Scheduling
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基于增益调度的输入饱和系统的可靠鲁棒控制

DOI:
10.1007/s00034-016-0427-z
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发表时间:
2017-06
期刊:
Circuits, Systems, and Signal Processing
影响因子:
--
通讯作者:
Xue Anke
Xue Anke
中科院分区:
其他
文献类型:
--
作者:
Wang Qian;Zhang Kai;Xue Anke

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针对存在输入饱和、系统不确定性、外部干扰和执行器故障的系统,基于线性矩阵不等式和增益调度技术设计了一种可靠的鲁棒离散增益调度控制器。通过所设计的离散增益调度控制器,我们可以使用一系列嵌套的椭球不变集,以加强干扰衰减能力尽可能强。这意味着需要最小化最内不变椭球集,以增强扰动衰减能力。通过引入参数,改善了闭环系统的动态性能。通过李雅普诺夫方法,可容许控制器的存在条件可以用线性矩阵不等式的形式表示。数值仿真结果表明了该方法的有效性。
In this paper, a reliable robust discrete gain scheduling controller is designed based on the linear matrix inequalities (LMIs) and gain scheduling technology for the systems with the input saturation, system uncertainty, external disturbance and actuator failures. By the designed discrete gain scheduling controller, we can use a series of nesting ellipsoid invariant sets to strengthen the disturbance attenuation ability as strong as possible. It means that the innermost invariant ellipsoid set needs to be minimized to strengthen the disturbance attenuation ability. The dynamic performance of the closed-loop system is improved by introducing a parameter. By the Lyapunov approach, the existing conditions for the admissible controller can be formulated in the form of LMIs. The numerical simulation illustrates the effectiveness of the proposed method.
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