School of Electrical and Computer Engineering, Shiraz University, Shiraz, Iran.
ISA Trans. 2018 Oct;81:132-140. doi: 10.1016/j.isatra.2018.08.006. Epub 2018 Aug 11.
This paper proposes a novel systematic approach for designing a reset gain-scheduling dynamic controller based on a model predictive method for a class of nonlinear systems represented by polytopic linear parameter varying models. The proposed design procedure involves offline and online steps. In the offline step, sufficient conditions of the gain-scheduling dynamic controller design in terms of linear matrix inequalities are derived through a novel D-stability region. Thus, the feedback gain vertices are computed by the convex optimization techniques. Then in the online step, based on a predefined reset set, an affine after reset value function for the controller states is optimally selected by solving a generalized Eigenvalue problem. Also, the temporal regulation technique is utilized to avoid Zeno solution problem. Finally, the merits of the proposed controller are demonstrated by applying it on a nonlinear continuous stirred tank reactor.
本文提出了一种基于模型预测方法的新型系统方法,用于设计基于多面体线性参数变化模型表示的一类非线性系统的重置增益调度动态控制器。所提出的设计过程包括离线和在线步骤。在离线步骤中,通过新颖的 D 稳定性区域导出了增益调度动态控制器设计的线性矩阵不等式的充分条件。因此,通过凸优化技术计算反馈增益顶点。然后,在线步骤中,基于预定义的重置集,通过求解广义特征值问题来最优地选择控制器状态的仿射重置后值函数。此外,利用时变调节技术避免 Zeno 解问题。最后,通过将其应用于非线性连续搅拌釜式反应器来证明所提出的控制器的优点。