A General Integrated Design and Control Strategy Considering System Decomposition With Application to a Rocket Flight Attitude Control System

Optimizing design and control sequentially is a typical way to improve performance for a dynamic engineering system. However, this type of strategy overlooks the impact on the design from control and may cause low system-level optimality for complex systems that include multilayer subsystems. To obtain improved system performance than sequential strategies, this article proposes an integrated design and control (IDC) strategy for an engineering system. The IDC approach considers the system decomposition, examines the two-way influence between design and control for each layer, and optimizes subsystems simultaneously. The effectiveness of the IDC strategy is verified by the case study of a rocket flight attitude control (RFAC) system. The experimental results show that compared with the sequential strategy, the proposed integrated strategy can achieve better performance at the system level.