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本文叙述了所开发的催化裂化装置反应再生系统一种分散鲁棒控制策略。讨论的问题是,在过程动力学特性不完全已知的情况下,寻求一分散控制器,使得即使当过程特性发生摄动或存在干扰时,系统均具有令人满意的动态性能。此项开发仅以过程的静态增益阵和一些简单的“在线”整定试验即获得了分散控制器,并改进了 Davison (1978)所提出的控制结构。最后,成功地将该技术应用于一个大型催化裂化生产装置。结果表明,此分散鲁棒控制系统具有满意的动态性能和鲁棒性,使反应器温度的方差与最大偏差分别从1.90℃与9.7℃降为0.91℃与4.0℃。
This paper describes a decentralized robust control strategy developed for a catalytic cracking unit reaction regeneration system. The problem to be discussed is to look for a decentralized controller where the process dynamics characteristics are not completely known, so that the system has satisfactory dynamic performance even when perturbations in the process characteristics occur or when there is interference. This development obtained decentralized controllers using only the static gain matrix of the process and simple “online” tuning experiments and improved the control structure proposed by Davison (1978). Finally, the technology was successfully applied to a large catalytic cracking unit. The results show that the decentralized robust control system has satisfactory dynamic performance and robustness. The variance of the reactor temperature and the maximum deviation are reduced from 1.90 ℃ and 9.7 ℃ to 0.91 ℃ and 4.0 ℃ respectively.