Load - Preview Decentralized Robust Controllers for HVAC Systems

A load-preview decentralized robust controller is designed for temperature control of multizone indoor environmental spaces. A two-zone space heating system is considered. The physical system consists of a boiler, heat pumps, distribution network and two environmental zones. By assuming that the outdoor temperature variations are "previewable", a decentralized preview controller is designed by using a parameter optimization method. The output responses of the resulting decentralized closed-loop bilinear system with and without preview action are compared. Also, results showing the robustness property of the controller in the sense that it achieves regulation even in the presence of non-destabilizing changes in the system parameters and any mismatches in the disturbance profile are given.