分布式信息能源系统的耦合模型、网络架构与节点重要度评估

Coupling Model,Network Architecture and Node Importance Evaluation of Distributed Information Energy System

分布式信息能源系统是能源互联网发展的新阶段和应用的新形态,也是信息和能源深度耦合的分布式复杂信息物理系统。该文在研究电网与电力通信网的耦合网络模型的基础上,借鉴复杂网络理论,采用相关系数法和关联矩阵法建立以能源路由器为节点的分布式信息能源系统网络架构;结合信息流和能量流的不同业务特征,建立考虑双网耦合标度的网架节点重要度评价指标体系,提出一种可由客观因素修正主观赋权的多指标综合评价方法;仿真验证表明通过节点重要度计算可有效优化系统骨干网架的搜索过程,确保覆盖重要度高的节点及关键线路,进而验证节点重要度评估机制的可行性及合理性。

The distributed information energy system is a new stage of energy Internet development and a new form of its application.It is also a distributed and complex information physical system where information and energy are deeply coupled.This paper built a network architecture of a regional distributed information energy system with energy routers as nodes based on the coupled network model of the power communication network and the power network,with the help of complex network theory,correlation coefficient method and correlation matrix method;Combining the different business characteristics of information flow and energy flow,an evaluation index system considering the dual network coupling scale was established,and a multi-index comprehensive evaluation method that can modify subjective empowerment by objective factors was proposed.The simulation verification shows that the calculation of the importance of the nodes can effectively optimize the search process of the backbone network frame of the system,ensure that the nodes and key lines with high importance were covered,and it also verifies the feasibility and rationality of the node importance evaluation mechanism.