Dynamic Evaluation of Controllable Ability of Building Ernergy System

Currently, building energy consumption accounts for 30-45% of global energy consumption, and the energy flexibility of the building provides it with controllable potential. In view of the lack of existing research on the overall controllable ability of building energy system from upper energy supply system. This paper defines controllable ability of building energy system, and proposes a unified dynamic evaluation model. Firstly, the impact of each influencing factor on the controllable ability is quantified, including virtual energy storage, electrical appliances, HVAC system, CCHP system, and occupants' demand response. Secondly, analytical method and optimization method are used to evaluate the controllable ability. Then, based on the division of initial states, a sequential recurrence method is proposed to realize the dynamic evaluation of controllable ability. Finally, a practical case is used to verify the effectiveness and practicability of this method.