H-Infinity Control Design Considering Packet Loss as a Disturbance for Networked Control Systems

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OGURA, Takashi ; KOBAYASHI, Kentaro ; OKADA, Hiraku ; KATAYAMA, Masaaki (2017)
  • Publisher: 一般社団法人電子情報通信学会
  • Journal: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, volume E100A, issue 2, pages 353-360 (issn: 0916-8508)
  • Subject: networked control | packet loss | control design | robust control | H-infinity control | LQ control

This paper studies H∞ control for networked control systems with packet loss. In networked control systems, packet loss is one of major weakness because the control performance deteriorates due to packet loss. H∞ control, which is one of robust control, can design a controller to reduce the influence of disturbances acting on the controlled object. This paper proposes an H∞ control design that considers packet loss as a disturbance. Numerical examples show that the proposed H∞ control design can more effectively reduce control performance deterioration due to packet loss than the conventional H∞ control design. In addition, this paper provides control performance comparisons of H∞ control and Linear Quadratic (LQ) control. Numerical examples show that the control performance of the proposed H∞ control design is better than that of the LQ control design.
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