计及设备变负载率特性的综合能源系统“源-荷-储”协同优化调度策略

Source-load-storage coordinated optimal dispatch strategy of integrated energy system considering the characteristics of equipment variable load rate

针对传统综合能源系统忽略设备变负载率特性建模而导致调度方案经济性降低等问题,提出了一种计及设备变负载率特性的综合能源系统“源-荷-储”协同优化调度策略。文章基于对系统“源-储”两侧设备运行特性的研究,建立了设备的变负载率模型,以减少传统恒定效率模型带来的调度误差;引入主从博弈理论分析了综合能源系统供需两侧之间的交互过程,建立了计及设备变负载率特性的供需两侧主从博弈模型,进而证明了所提模型存在唯一博弈均衡,并提出相应求解流程;最后,对某园区综合能源系统进行仿真分析。结果表明:所提策略能够实现综合能源系统“源-荷-储”协同运行,提升供给侧与需求侧的经济效益。

Aiming at the problems of the traditional integrated energy system neglecting the equipment variable load rate characteristic modeling,which leads to the reduction of the economy of the dispatching plan,a"source-load-storage"collaborative optimization dispatching strategy of the integrated energy system considering the equipment variable load rate characteristic is proposed.The artical based on the research on the operating characteristics of the equipment on both sides of the system"source-storage",a variable load rate model of the equipment is established to reduce the scheduling error caused by the traditional constant efficiency model;The master-slave game theory is introduced to analyze the integrated energy in the interaction process between the supply and demand sides of the system,a master-slave game model on both sides of the supply and demand that takes into account the characteristics of the variable load rate of the equipment is established,and it is proved that the proposed game model has a unique equilibrium solution;finally,a simulation analysis is carried out for the integrated energy system of a park.The simulation result shows that the strategy proposed in this paper can realize the coordinated operation of the"source-load-storage"of the integrated energy system,and improve the economic benefits of the supply side and the demand side.