电力系统保护与控制2011，Vol.39Issue(12)：17-21,5.
直流输电对电网复杂网络特性的影响
The effects of HVDC transmission on complex network characteristics of power grid
摘要
Abstract
The complex network theory is used to study the structural characteristics of AC/DC system with high-voltage DC transmission(HVDC), which aims to study the effects of HVDC transmission on the complex network characteristics of the power grid structure. Taking the transmission capacity as an index, the unified definition of the weight of AC and DC transmission lines is presented; By considering both the contribution of the node to system and node network characteristics, the importance of nodes is defined. Based on the above proposed definition, an assessment method for the AC-DC transmission system vulnerability is proposed.Taking IEEE14 system for an example, a simulation analysis with the objective function of commonly used network performance function shows that in the same power system, the introduction of HVDC transmission makes the system characteristics transfer to be scale-free, and enhances the ability to resist random failures, while also shows more vulnerable when facing the calculated attack.This work is supported by National Natural Science Foundation of China (No.60674057).关键词
智能电网/复杂网络/高压直流/AC/DCKey words
smart grid/ complex network/ high voltage DC/ AC/DC分类
信息技术与安全科学引用本文复制引用
蒋强,肖建,蒋毅,何都益..直流输电对电网复杂网络特性的影响[J].电力系统保护与控制,2011,39(12):17-21,5.基金项目
国家自然基金资助项目(60674057) （60674057）
教育部博士点基金资助(20060613003) （20060613003）
四川省教育厅资助项目(09ZB028) （09ZB028）
