Dynamic Programming based Approaches to Optimal Rooftop Unit Coordination
نویسندگان
چکیده
While buildings served by multiple rooftop units (RTUs) are widely prevalent in retail and food industries, optimal coordination among RTUs has received little attention. Currently, most buildings utilize plain feedback or heuristic strategies to determine RTU operations. In this paper, we present a switched dynamic programming based approach for optimal scheduling of rooftop unit operations. Using a mid-size restaurant served by multiple RTUs as an example, a switched affine dynamic system model is first presented. The RTU coordination control problem is then formulated as a switched optimal control problem with nontrivial switching cost. A dynamic programming based method is proposed for the solution of the switched optimal control problem, which has reasonable computational complexity and can be implemented either as a one-shot solution or as part of a model predictive control algorithm. In order to mitigate the growing computational complexity of the proposed algorithm, we extend the approach by proposing a distributed extension of the model predictive control formulation. Finally we conduct simulation-based evaluation of the various formulations and point out the salient features of the formulation.
منابع مشابه
Method and System for Optimal Coordination Control and Soft Repair of Multiple Rooftop Heating and Cooling Units
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