Architectural Structure Of The Hybrid Control System Optimal Control And Robust Control

In this paper the research methods of civil structural control are discussed and the designing of AMD-TMD hybrid control system for the structure under seism and wind is presented. And then a H∞ robust controller is proposed for the system, considering the uncertainties of civil structures.Some foundation issues about civil structural control consisted of the theory foundation, the characteristics, the function and the study methods are discussed, and then the known theories and methods, as well as the engineering applications of them are analyzed.The AMD-TMD hybrid control system is investigated in the second part of this paper. The dynamic equations of AMD-TMD hybrid control system are derived from the mechanical model, and the standard state equation is obtained. And then the controller of the system is designed employing instantaneous optimal theory. In addition, the simulative wave of wind is formed using the stochastic vibration theory and the MATLAB language, and the controller of the structure to resist the winds loads is designed. All the theories above are validated through MATLAB simulation subsequently.In the end of this paper, the preliminary controller with robustness character of the hybrid system is presented. In this part, theH∞, robust control theory is briefly recalled, and then the equivalent two-port model is applied to the standard state equation of the system and a robust controller is made based on the H∞ frequency shaping synthesis theory. The simulation results show the good control performance and good robustness of the controller.