综合能源网络建模与运维技术研究综述

A Review of Modeling,Operation and Maintenance Technologies for Multi-energy Coupled Integrated Energy Network

在当前多种异质能源耦合程度不断加深,清洁能源高比例渗透的背景下,综合能源网络耦合电、气、热、冷等多种能源类型,实现不同能源网络之间的协调规划与互济调控,被认为是促进可再生能源消纳和提高能源利用效率的重要手段之一。首先从综合能源网络的特性分析开始,对其多能流差异特性、天然气网络的管存特性、热力网络的热延迟特性进行重点分析;其次在综合能源网络建模方面,分别介绍3种建模方法:机理分析建模法、数据驱动建模法、统一能路建模法;在综合能源网络状态估计方面,梳理综合能源网络状态估计发展历程以及状态估计主要方法,并对综合能源网络运行可靠性评估的国内外研究现状进行阐述。最后对综合能源网络建模方法与状态估计两方面进行展望,可以为该方向的科研人员提供参考。

Currently,the coupling degree of multiple heterogeneous energy sources is constantly deepening,with a high proportion of clean energy penetration.The integrated energy network couples multiple energy types such as electricity,gas,heat,and cold,achieving coordinated planning and mutual regulation among different energy networks.It is considered one of the important means to promote the consumption of renewable energy and improve energy utilization efficiency.Firstly,starting from the analysis of the characteristics of the integrated energy network,the differential characteristics of its multiple energy flows,the storage characteristics of the natural gas network,and the thermal delay characteristics of the thermal network were mainly analyzed.Then,in the aspect of integrated energy network modeling,three modeling methods were introduced respectively:the mechanism analysis modeling method,the data-driven modeling method,and the unified energy path modeling method.Moreover,in terms of integrated energy network state estimation,the development history and main methods of comprehensive energy network state estimation were summarized,and the current research status of integrated energy network operation reliability evaluation at home and abroad was elaborated.Finally,the outlook of integrated energy network modeling method and state estimation was given,which can provide reference for researchers in this direction.