摘要：AbstractIn this study, we evaluated a new data-driven approach for designing a dual-rate cascade control system. A dual-rate cascade control system consists of inner and outer loops, where the update interval of the inner loop controller is shorter than that of the outer controller. In the proposed method, fictitious reference iterative tuning is used to optimize the controller parameters in the inner and outer loops. Hence, the controller parameters are designed using only the control data, and no modeling procedure is needed. The controller parameter for the inner loop is optimized first, and then the outer loop parameter is optimized. Because the inner loop is updated faster than the outer loop in the dual-rate system, the control performance of the proposed dual-rate design is superior to that of conventional single-rate systems. The effectiveness of the proposed method was demonstrated using numerical examples.
关键词：KeywordsCascade systemdata-driven controldual-rate systemPID controliterative tuning methodstransient responsessampled-data system
