基于熵理论的电力网络节点重要性评估

为评估电网节点重要性,综合考虑节点脆弱性和抗毁性两方面,构造出评价节点重要性的指标——修正权熵,该指标物理意义明确,比以往单纯考虑网络结构或者单独考虑电网电气特性的方法更高一筹,且思路简单,便于计算。通过算例分析,并与现存方法比较,验证其有效性。

Node Importance Evaluation of Power Network Based on Entropy Theory

To assess power network node importance,this article considers both the node＇s vulnerability and destroy-resistance ability to construct the evaluation index of node importance—modified weight- entropy,its meaning is clear,and better than that in the past,only considered network structure or separately grid electric property index methods.The idea is simple,and easy to calculate.An example analysis is shown to verify its validity,with making a comparison with existing methods.