Optimized Operation of Integrated Energy System Considering the Characteristics of Ice Storage Air Conditioning and Building Area Energy Storage

In this paper, an integrated energy system optimization operation strategy that combines ice storage air conditioning and energy storage characteristics of building cooling area is proposed. Firstly, the ice storage air conditioning and the energy storage characteristics of the building cooling area are modeled. Then, an integrated energy system optimization operation model is constructed by considering the change in the energy efficiency ratio of the ice storage air conditioning, and the energy storage characteristics of the building cooling area are used to ensure that the room temperature constraint is not violated. Finally, the validity of the proposed methodology is verified by a simulation example. The results show that this strategy can not only effectively reduce the operating cost of the integrated energy system, but also improve the economy and flexibility of the system.

I. Introduction

Integrated energy system (IES) covers a variety of energy sources such as cold, heat and electricity, and is characterized by regional concentration and multiple types of energy use [1]. With the large-scale access of distributed energy sources, it is no longer possible to solve the supply-demand balance problem by only relying on the regulation capability of the generation side [2]. Based on the close coupling of multiple energy flows in the energy-using side, system optimization can improve the overall utilization efficiency of energy [3].