孤岛型多能互补系统的规划与运行优化模型研究

Research on optimization of planning and operation for islanded integrated energy system

在能源互联网高速发展的背景下,如何提高孤岛型多能互补系统(Integrated Energy System,IES)的经济性与稳定性,已成为该领域的重点研究内容。文章构建了计及容量配置与运行调度的孤岛型IES两阶段优化模型。在规划阶段,根据孤岛型IES的能源供给特性,负荷结构特性及设备运行特性,构建了孤岛模式下IES的精细化容量配置约束模型;在运行阶段,基于规划阶段的配置优化结果,进一步引入激励型需求响应,以运行成本最小化为目标构建运行调度模型;通过案例仿真来验证所提模型的有效性,仿真结果表明:P2G设备不适用于孤岛型IES,储能设备的引入可以实现科学性容量配置,并将系统的年经济成本降低了19.7万元,在运行阶段引入需求响应后,进一步提高了IES的经济效益。

In the context of the rapid development of energy Internet,how to improve the economy and stability of islanded integrated energy system(IES)is a research hotspot in this field.This paper constructed the islanded IES two-stage optimization model considering capacity allocation and operation scheduling.Firstly,in the planning stage,the refined capacity allocation constraint model of IES in islanded mode was constructed according to the energy supply characteristics,load structure characteristics and equipment operation characteristics of IES.Then,in the operation stage,based on the optimization results in the planning stage,the incentive-based demand response was further introduced,and the operation scheduling model was constructed with the operation cost minimization as the optimization objective.Finally,the effectiveness of the proposed model was verified by case simulation.The simulation results shows that the P2G equipment is not suitable for islanded IES,and the introduction of energy storage equipment can realize scientific capacity allocation,and the annual economic cost of the system is reduced by 197,000 RMB.After the introduction of demand response in the operation stage,the economic benefit of IES is further improved.