考虑源荷互动的综合能源社区分布式优化

Distributed Optimization of Integrated Energy Community Considering Source-load Interaction

随着能源市场的改革,社区综合能源系统各主体的分布式自治特征愈发明显,对传统集中式模式的计算和通信能力提出了挑战。考虑柔性负荷通过智能楼宇接入综合能源社区,形成分布式源荷互动模式,提出了基于目标级联分析理论的分布式优化调度模型。首先,将综合能源服务商和智能楼宇作为不同利益主体,以运行成本最低为目标,建立各自的优化自治模型。其次,引入目标级联分析方法,通过将购电功率等效为虚拟发电机与虚拟负荷实现不同主体间运行的解耦。最后,通过算例验证了所提方法的有效性,为综合能源社区运行提供了更为经济的运行方案。

With the reform of the energy market,the distributed autonomy of main entities in a community integrated energy system is becoming more and more obvious,which poses a challenge to the computing and communication capabilities in the traditional centralized mode.In this paper,flexible loads are connected to the integrated energy community through smart buildings to form a distributed source-load interaction mode,and a distributed optimal dispatching model based on the target cascaded analysis theory is proposed.First,integrated energy service providers and smart buildings are treated as different stakeholders,and their optimized autonomy models are established respectively,with the goal of the lowest operating cost.Second,the target cascaded analysis method is introduced to realize the decoupling of operation between different entities by equating the purchased power as a virtual power generator and virtual load.Finally,the effectiveness of the proposed method is verified by a numerical example,and a more economical operation scheme is provided for the operation of the integrated energy community.