考虑冷热电需求耦合响应特性的园区综合能源系统优化运行策略研究

近年来，为了促进可再生能源消纳、提高能源利用效率，园区综合能源系统得到大力推广及应用，建立精细化的综合需求响应模型是实现园区综合能源系统供需双侧协调优化运行的关键。该文首先构建了能源供需双侧同时存在耦合的园区综合能源系统运行架构，然后基于电力负荷价格弹性响应模型推导建立了考虑冷热电需求耦合响应特性的精细化综合需求响应模型。在此基础上，以综合能源系统运行成本最小为目标，建立了园区综合能源系统优化运行模型，该模型通过优化能源需求侧的售能价格和能源供给侧的设备运行参数等，实现能源供给侧和需求侧的协调优化。最后基于一个典型综合能源系统对所建综合需求响应模型和园区综合能源系统优化运行模型进行仿真计算，计算结果表明，所提考虑冷热电需求耦合响应特性的综合需求响应模型可以准确描述多种用户参与需求响应的耦合响应过程，所提园区综合能源系统优化运行模型实现综合能源系统经济性的提升，促进可再生能源的消纳。

Research on Optimal Operation Strategy for Park-level Integrated Energy System Considering Cold-heat-electric Demand Coupling Response Characteristics

In recent years,to promote renewable energy consumption and improve energy efficiency,the integrated energy system(IES)has been widely promoted and applied.Establishing a refined integrated demand response(IDR)model is the key to realize the coordinated and optimized operation of IES.In this paper,a regional IES architecture with coupling between energy supply and demand was first constructed.Then,based on the elastic price response model of power load,a refined IDR model with coupling response characteristics of electricity-heat-cold demand was established.On this basis,with the goal of minimizing the operating cost of IES,the IES optimization operation model was established.This model achieved the coordinated optimization on both sides by optimizing the energy price of on the demand side and the operating parameters of the energy conversion equipment in the EH on the supply side.Finally,based on a regional IES system,the IDR model and IES operation model were simulated,and the results show that the proposed IDR model can accurately describe the coupling response characteristics of the participation in demand response,and the proposed IES optimal operation model can improve the economy of IES and promote the renewable energy consumption.