FU Jian, YANG Weidong, LI Boqun, LIU Tong. Robust control for dynamic set AGC in hot strip mill based on μ synthesis[J]. Chinese Journal of Engineering, 2006, 28(3): 293-298. DOI: 10.13374/j.issn1001-053x.2006.03.020
Citation: FU Jian, YANG Weidong, LI Boqun, LIU Tong. Robust control for dynamic set AGC in hot strip mill based on μ synthesis[J]. Chinese Journal of Engineering, 2006, 28(3): 293-298. DOI: 10.13374/j.issn1001-053x.2006.03.020

Robust control for dynamic set AGC in hot strip mill based on μ synthesis

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  • Received Date: January 29, 2005
  • Revised Date: April 20, 2005
  • Available Online: August 23, 2021
  • A robust approach based on μ synthesis is proposed on the analysis of a dynamic set AGC model and engineering practice in hot strip mill. Even thought there is perturbation in stiffness, the performance of the system with the approach satisfies the request all the time. By introducing the fictive uncertainty characterizing the system capability and the main loop theorem, the problem that design a controller to satisfy the performance request with the model perturbation inside is transformed into the robust stability problem of an augmented system. Compared with H method, this method is more effective because of its design target more really reflecting the control target. In the end, simulation with the practical data proves the dynamic set AGC system with the method can achieve more robust performance than that of H method.
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