Abstract
This paper presents an optimal dispatch model of an ice storage air-conditioning system for participants to quickly and accurately perform energy saving and demand response, and to avoid the over contact with electricity price peak. The schedule planning for an ice storage air-conditioning system of demand response is mainly to transfer energy consumption from the peak load to the partial-peak or off-peak load. Least Squares Regression (LSR) is used to obtain the polynomial function for the cooling capacity and the cost of power consumption with a real ice storage air-conditioning system. Based on the dynamic electricity pricing, the requirements of cooling loads, and all technical constraints, the dispatch model of the ice-storage air-conditioning system is formulated to minimize the operation cost. The Improved Ripple Bee Swarm Optimization (IRBSO) algorithm is proposed to solve the dispatch model of the ice storage air-conditioning system in a daily schedule on summer. Simulation results indicate that reasonable solutions provide a practical and flexible framework allowing the demand response of ice storage air-conditioning systems to demonstrate the optimization of its energy savings and operational efficiency and offering greater energy efficiency.
Highlights
In recent years, due to rapid industrial development, the electricity demand growth has been substantial
This study proposes an Improved Ripple Bee Swarm Optimization (IRBSO) in order to achieve the optimal demand response of an ice storage air-conditioning system
In this study we investigated the actual practice in the operation planning of the chiller units
Summary
Due to rapid industrial development, the electricity demand growth has been substantial. The peak load continues to rise year by year, but international oil costs and production lack stability. There is an urgent need to seek and develop alternative sources of energy, as well as to carry out comprehensive reviews of the efficiency of using these energy sources. Improving the efficiency of the chiller units to reduce electricity costs is very important. Public buildings, such as large hospitals, office buildings and shopping malls, use central air-conditioning systems. In the current design of large-scale central air-conditioning systems, the main structure includes fans, ice water pumps, chiller units, cooling water pumps and cooling fans
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