Integrated application strategy of large-scale intelligent building based on renewable energy technology

Abstract

ABSTRACT The integrated system of intelligent buildings constructed by incorporating renewable energy can meet the requirements of zero-carbon green buildings. In this paper, the photovoltaic network is used as the source of multiple energy sources, and hydrogen fuel cells are also incorporated. Considering the difference in cooling and heating loads between winter and summer, a smart building integrated system based on renewable energy is constructed. Model Predictive Control (MPC) theory is introduced to coordinately control and manage multi-energy building systems. The simulation results show that the ground source heat pump equipment is in a shutdown state in summer, while the maximum operating powers of the electrolyzer, hydrogen fuel cell and battery are 30, 10.1 and 10 kW, respectively. In winter, the refrigerators do not work, while the ground source heat pump operates at a maximum power of 10.8 kW, while the hydrogen fuel cell and battery operate at a maximum power of 13.28 and 10 kW, respectively. After the optimal management of MPC, the state of charge of the battery in winter and summer is controllable, ranging from 20% to 80%, and the hydrogen level content curve can also track the reference value curve well.