In this paper, the reliable control problem for decentralized systems is considered. It concerns the ability of closed-loop system to maintain stability and disturbance rejection properties during arbitrary sensor, controller, and actuator failure without being retuned. The notion of block decentralized robust servomechanism problem with complete reliability is first introduced to address systems with a block diagonal feedback structure. This is followed by establishing two conditions for reliability: (i) systems satisfying certain steady-state interaction characteristics or (ii) systems possessing minimum phase “block” transmission zeros. Accordingly, two types of decentralized controllers are applied to achieve reliable control for these two categories of systems. Simulation examples are also included to illustrate the properties of the reliable control system.
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June 2006
Technical Briefs
Reliable Decentralized Servomechanism Problem for Large-Scale Systems
Timothy Chang,
Timothy Chang
Department of Electrical and Computer Engineering,
New Jersey Institute of Technology
, Newark, NJ 07102
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Zhengfang Chen
Zhengfang Chen
Motorola, Inc.
, South Plainfield, NJ 07080
Search for other works by this author on:
Timothy Chang
Department of Electrical and Computer Engineering,
New Jersey Institute of Technology
, Newark, NJ 07102
Zhengfang Chen
Motorola, Inc.
, South Plainfield, NJ 07080J. Dyn. Sys., Meas., Control. Jun 2006, 128(2): 441-448 (8 pages)
Published Online: February 3, 2005
Article history
Received:
January 24, 2003
Revised:
February 3, 2005
Citation
Chang, T., and Chen, Z. (February 3, 2005). "Reliable Decentralized Servomechanism Problem for Large-Scale Systems." ASME. J. Dyn. Sys., Meas., Control. June 2006; 128(2): 441–448. https://doi.org/10.1115/1.2196420
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