Research on building air conditioning systems for participating in electricity market based on energy flexibility:A review

In recent years,to address energy issues and achieve carbon neutrality goals,the global volume of renewable electricity generation has rapidly increased.However,the intermittency of renewable energy generation poses greater challenges to the stability of the electrical grid.Building air conditioning systems can alleviate the pressure on smart grid balance through flexible energy use.This paper analyses the types of electricity markets in which building air conditioning systems are currently and potentially involved,as well as the requirements of flexible control of air conditioning systems for participating in different types of markets.This paper then summarizes the control methods of air conditioning systems for implementing flexible energy use,the problems encountered in control,and corresponding solutions.Finally,this paper analyses the limitations and enhancement methods of flexible energy use capacity and presents a comparison on building energy conservation and flexible energy use.In summary,this paper aims to provide a reference for the in-depth study and exploration of air conditioning systems participating in various types of electricity markets through flexible energy use.