摘要
根据我国能源结构的多态化特性、能源消费结构的主体性依存和对外依赖性、能源区域的自治性和非自治性,以及能源供应区域的分布等特性,研究了一类具有自治节点和非自治节点的多重供应-依赖关系的耦合网络模型.通过定义网络之间和网络内部的失效机制,以网络中的星状结构为例,研究了随机故障和蓄意攻击两种突发事件下网络的抗毁性.对于随机故障下的网络,研究结果表明,通过增加各能源网络中的自治区域节点的比例,同时增加网络之间的多态化能源的供应密度和强度,可以有效的提高网络的抗毁性,增强网络的安全性.对于蓄意攻击下的网络,研究结果表明,除采取上述措施外,通过对网络中供应度高的节点进行重点保护,可以提高网络的稳健性.
According to China＇s multiple energy structure, the dependency of fossil fuels and imported energy in energy consumption structure, autonomous and non-autonomous region of energy and the distribution feature of the energy supply, this paper studies a class of multiple supply-dependent coupling network model with nodes autonomous and nonautonomous. By defining failure mechanisms of inter- and intra- networks, for the case of starlike network, this paper researches the robustness of interdependent networks under random and targeted attack separately. For random-attack problem, we find that the energy networks get more robust and safe, as the fraction of autonomous nodes or the density of connectivity links increase. For targeted- attack problem, besides the above measures, the system robustness can be still increased by being focused on protecting the nodes with higher degree of central network.
出处
《系统工程学报》
CSCD
北大核心
2014年第5期619-627,共9页
Journal of Systems Engineering
基金
国家社会科学基金重大资助项目(12&ZD062)
国家自然科学基金资助项目(51276081
71073071
71303095)
江苏省青年科学基金资助项目(BK20140569)
江苏省高校自然科学面上资助项目(14KJB120001)
关键词
多态化能源结构
耦合相依网络
随机故障
蓄意攻击
鲁棒性
multiple energy structure
coupled dependency network
random attack
targeted attack
robustness
