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A new digital approach to design multivariable robust optimal control systems

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Abstract

This paper presents a new design of robust optimal controller for multivariable system. The row characteristic functions of a linear multivariable system and dynamic decoupling of its equivalent system, were applied to change the transfer function matrix of a closed-loop system into a normal function matrix, so that robustH ∞ optimal stability is guaranteed. Furthermore, for the decoupled equivalent control system thel ∞ optimization approach is used to have the close-loop system embody optimal time domain indexes. A successful application on a heater control system verified the excellence of the new control scheme.

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Authors and Affiliations

  1. National Laboratory of Industrial Control Technology, Zhejiang University, 310027, Hangzhou, China

    Liu Xiang, Chen Lin & Sun You-xian

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  1. Liu Xiang
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  2. Chen Lin
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  3. Sun You-xian
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Corresponding author

Correspondence to Liu Xiang.

Additional information

Project (No. 60274036) supported by the National Natural Science Foundation of China

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Xiang, L., Lin, C. & You-xian, S. A new digital approach to design multivariable robust optimal control systems. J Zheijang Univ Sci A 6, 707–710 (2005). https://doi.org/10.1631/jzus.2005.A0707

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  • DOI: https://doi.org/10.1631/jzus.2005.A0707

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