Demand response control strategy of groups of central air-conditionings for power grid energy saving

With the development of the national economy and the rapid raise of electricity demand, centralized use of air conditioning loads in cities has become one of important reasons for peak-valley difference increase of grid load in summer, which has led to the imbalance between supply and demand of the energy of China. It is have a certain load potential of central air-conditioning load, therefore, it is of great significance to improve the safe of power grid to adopt a reasonable regulation patterns for the peak clipping of central air-conditioning loads. This paper focuses on researching demand response control strategy with groups of central airconditionings involved, which is aimed at minimizing the building group peak demand. Firstly, the modeling of central air-conditionings equipped in building groups is described. Then, the flexible control methods of air-conditionings are analyzed and the optimization scheme of air-conditionings for power grid regulation is given. Next, a combinatorial regulation model of groups of central air-conditionings for peak load reduction is set up. Finally, case studies are given to carry out performance assessment of the demand response control strategy.