Dual-rate L1 adaptive controller for cyber-physical sampled-data systems
Dual-rate L1 adaptive controller for cyber-physical sampled-data systems
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DOI：
10.1109/cdc.2017.8264602
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发表时间：
2017-12
期刊：
影响因子：
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通讯作者：
H. Jafarnejadsani;Hanmin Lee;N. Hovakimyan;P. Voulgaris
中科院分区：
文献类型：
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作者：
H. Jafarnejadsani;Hanmin Lee;N. Hovakimyan;P. Voulgaris
本文提出了一种用于具有非线性不确定性的采样数据 MIMO 系统的双速率输出反馈控制方法。 L1自适应控制器的设计和分析扩展到采样数据系统框架。该控制器设计用于检测零动态攻击和不确定性补偿。得到了数字控制器采样时间的充分条件，保证了闭环系统的稳定性。结果表明，所提出的控制器可以恢复连续时间参考系统的性能。提供了自动电压调节器的仿真研究来验证理论发现。
This paper proposes a dual rate output-feedback control approach for sampled-data MIMO systems with non-linear uncertainties. Design and analysis of L1 adaptive controller is extended to sampled-data systems framework. The controller is designed for detection of zero-dynamics attacks and uncertainty compensation. A sufficient condition on the sampling time of the digital controller is obtained that ensures stability of the closed-loop system. It is shown that the proposed controller can recover the performance of a continuous-time reference system. A simulation study of an automatic voltage regulator is provided to validate the theoretical finding.