一种考虑网络特性的综合能源系统节点能价计算方法
A calculation method for node energy price of comprehensive energy system considering network characteristics
柯德平 1胡佳 1徐箭 1宋琳 1郑景文 2崔一铂 2凌在汛2
作者信息
- 1. 武汉大学电气与自动化学院,湖北武汉 430072
- 2. 国网湖北省电力有限公司电力科学研究院,湖北武汉 430061
- 折叠
摘要
构建了考虑网络特性的综合能源系统模型,对系统真实的边际用能成本进行核算,研究了考虑网络动态特性的综合能源系统节点边际能价求解方法.首先,基于计及能量平衡约束构建了考虑网络特性的综合能源系统模型;然后,基于电网直流潮流模型,通过功率传输分布因子对网损进行分摊,并对节点边际电价进行分解,分解为成本分量、损耗分量、阻塞分量3部分,得到节点边际电价的求解办法,再类比得到了节点气价和节点热价的求解办法;最后通过算例仿真对节点能价进行求解,分析得到当电网某区域发生阻塞后,该处边际价格升高,可以通过节点边际信号来促使阻塞地区用户改变用能行为,从而缓解阻塞.
Abstract
An integrated energy system model considering the network characteristics is constructed to calculate the real marginal energy cost of the system,and the method to solve the node marginal energy price of the integrated energy system considering the dynamic characteristics of the network is studied.First,a comprehensive energy system model considering network characteristics is constructed based on energy balance constraints.Then,based on the grid direct current power flow model,the power transmission distribution factor is used to apportion the network loss,and the node marginal price is decomposed into cost component,loss component and congestion component.The solution method to the node marginal price is obtained,and the solution method of the node gas price and node heat price is also obtained by analogy.Finally,the node energy price is solved through numerical simulation,and the analysis shows that when the grid is blocked in a certain area,the marginal price here increases,and the node marginal signal can be used to encourage users in the blocked area to change their energy consumption behaviours and alleviate the congestion.
关键词
综合能源系统/节点能价/网络特性/热电联产Key words
integrated energy system/node energy price/network characteristics/combined heat and power引用本文复制引用
基金项目
国家电网有限公司科技项目(5100-202199286A-0-0-00)
出版年
2024
NETL
NSTL
万方数据