Bi-level Optimization Method of Air-conditioning System Based on Office Building Energy Storage Characteristics

2017 2nd Asia Conference on Power and Electrical Engineering

能源学;电工学

Wang, Qingze^1 ; Chen, Xingying^1,2 ; Ji, Li^1,2 ; Liao, Yingchen^1,2 ; Yu, Kun^1,3

College of Energy and Electrical Engineering, Hohai University, Nanjing

211100, China^1

Jiangsu Engineering Research Center for Distribution and Utilization and Energy Efficiency, Nanjing

211100, China^2

Nanjing Hehai Science and Technology Ltd, Nanjing

210098, China^3

关键词: Bi-level optimization;    Building energy;    Distribution modes;    Electric power demands;    Electricity costs;    Energy storage characteristics;    Outdoor temperature;    Terminal equipment;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/199/1/012093/pdf
DOI  :  10.1088/1757-899X/199/1/012093

来源: IOP

【 摘 要 】

The air-conditioning system of office building is a large power consumption terminal equipment, whose unreasonable operation mode leads to low energy efficiency. Realizing the optimization of the air-conditioning system has become one of the important research contents of the electric power demand response. In this paper, in order to save electricity cost and improve energy efficiency, bi-level optimization method of air-conditioning system based on TOU price is put forward by using the energy storage characteristics of the office building itself. In the upper level, the operation mode of the air-conditioning system is optimized in order to minimize the uses' electricity cost in the premise of ensuring user' comfort according to the information of outdoor temperature and TOU price, and the cooling load of the air-conditioning is output to the lower level; In the lower level, the distribution mode of cooling load among the multi chillers is optimized in order to maximize the energy efficiency according to the characteristics of each chiller. Finally, the experimental results under different modes demonstrate that the strategy can improve the energy efficiency of chillers and save the electricity cost for users.