大型园区综合能源系统能源站优化配置

Optimal Allocation of Energy Stations in Large-scale Park Integrated Energy System

大型园区是综合能源系统的重要应用场景。随着不同能源形式之间的耦合日益紧密,能源网络对大型园区综合能源系统的运行和规划将产生一定的影响。为此,本文提出了一种计及供能网络的园区综合能源系统能源站双层优化配置方法。上层优化问题以各能源站投资和运行成本的年等值费用最小为目标;下层优化问题基于配电网络Distflow二阶锥模型和线性热网能量流模型,提出以年运行费用最小为目标的优化调度模型,提升了模型的可解性和计算速度。最后通过不同场景的分析,验证了所提模型的有效性。

A large-scale park is an important application scenario for the integrated energy system.With the increasing coupling between different energy forms,energy network will exert a certain impact on the operation and planning of the integrated energy system in a large-scale park.In this paper,a bi-level optimal allocation method for energy stations in the park is proposed with the consideration of energy supply network.The upper-level optimization problem aims at minimizing the annual cost of investment and operation cost of all energy stations.For the lower-level problem,an optimal dispatching model with the objective of minimizing the annual operation cost is proposed,which is based on the Dist?flow second-order cone model of distribution network and the linear heat network energy flow model.As a result,the model’s solvability and calculation speed are improved.Finally,the validity of the proposed model is verified by analy?ses in different scenarios.