TY  - CONF
AU  - Mork, Maximilian
AU  - Xhonneux, André
AU  - Müller, Dirk
TI  - Hierarchical Distributed Model Predictive Control for Building Energy Systems; 36th
M1  - FZJ-2024-00037
SP  - 1-12
PY  - 2023
AB  - Buildings contribute to approximately 30 % of global energy consumption, which renders their energy-efficient control an effective measure to reduce overall energy consumption. This paper presents a hierarchical distributed Model Predictive Control (MPC) for building energy systems based on nonlinear Modelica controllermodels. It combines hierarchical and distributed optimization approaches to split the optimization complexity within the temporal and spatial dimension. The hierarchical optimization approach considers different dynamics in complex building energy systems and ensures both anticipation for systems with high inertia and reactivitywith regard to errors in the forecasting of the disturbance quantities. The distributed optimization approach divides the centralized optimization problem into subproblems to improve the scalability and adaptability of the control framework. The subproblems are solved in a parallel and iterative manner and account for both thermal (heat transfer over zone boundaries) and hydraulic inter-zone coupling (induced by a central, shared Heating, Ventilation and Air Conditioning (HVAC) system). A particular focus of the control approach is placed on robustness with respect to errors in the forecasting of the disturbances that impact the building dynamics. The control performance of the proposed MPC framework is evaluated in a simulative case study of heating and shading control of a nonlinear six-room-building Modelica model, which is exposed to different forecast accuracies for the disturbances of occupancy, solar radiation and air exchange. The case study exhibits the benefits of the control framework in terms of energy consumption, thermal discomfort and computation time in comparison to a reference control concept of a non-hierarchical distributed MPC configuration.
T2  - THE 36TH INTERNATIONAL CONFERENCE ON EFFICIENCY, COST, OPTIMIZATION, SIMULATION AND ENVIRONMENTAL IMPACT OF ENERGY SYSTEMS
CY  - 25 Jun 2023 - 30 Jun 2023, Las Palmas de Gran Canaria (Spain)
Y2  - 25 Jun 2023 - 30 Jun 2023
M2  - Las Palmas de Gran Canaria, Spain
LB  - PUB:(DE-HGF)8
DO  - DOI:10.34734/FZJ-2024-00037
UR  - https://juser.fz-juelich.de/record/1020281
ER  -