基于非均衡蛛网模型的区域能源互联网协调优化运行策略  

Coordinated optimal operation strategy of a regional energy internet based on the non-equilibrium cobweb model

作　　者：刘奇 周海全 何浩 雷霞 李萌 LIU Qi;ZHOU Haiquan;HE Hao;LEI Xia;LI Meng(Liaocheng Power Supply Company,State Grid Shandong Electric Power Company,Liaocheng 252000,China;School of Electric Engineering and Electronic Information,Xihua University,Chengdu 610039,China)

机构地区：[1]国网山东省电力公司聊城供电公司,山东聊城252000 [2]西华大学电气与电子信息学院,四川成都610039

出　　处：《电力系统保护与控制》2020年第17期93-107,共15页Power System Protection and Control

基　　金：国家自然科学基金项目资助(51877181);国网山东省电力公司科技项目资助(520611190002)。

摘　　要：面向以微能源网为基本供能单元的区域能源互联网,提出一种基于区域电力市场定价引导不同微能源网之间进行电能交互的协调优化运行策略。从微能源网利益出发,建立供需两侧协同的微能源网日前自治优化调度模型。引入非均衡蛛网模型建立区域电力市场的定价交易模型,并形成市场价格调节与微能源网自治优化的双层交互结构。双层交互至稳定状态后,区域电力市场将实际交易电量向过度供给或过度需求方分配,各微能源网再根据分配结果进行最终的独立自治优化。算例仿真分析表明,所提的协调优化运行方法可以实现非均衡状态下的稳定交易,使得微能源网之间通过高效的电能交互提升各自的经济环保等运行性能。Based on pricing in the Regional Electricity Market(REM),an optimal operation strategy to coordinate power interaction among Micro Energy Grids(MEGs)is proposed for the Regional Energy Internet(REI)composed of MEGs.First,each MEG is considered as an independent interest entity and an autonomous optimal dispatching model of the MEG is established to coordinate supply and demand.Secondly,a non-equilibrium cobweb model is introduced to establish the pricing and trading model of the REM,and a two-level interactive structure of market pricing and MEG autonomous optimization is formed.When trading is stable in the REM,actual trading electricity is allocated to the over-supply or over-demand grids and each MEG optimizes itself independently again according to the allocated electricity.Finally,the simulation results show that the proposed coordinated optimal operation method can achieve stable transactions under unbalanced conditions and improve the economic and environmental performance of MEG through efficient power interaction.

关 键 词：微能源网 区域能源互联网 区域电力市场 非均衡蛛网模型 协调优化运行 

分 类 号：TM732[电气工程—电力系统及自动化] TK01[动力工程及工程热物理]