摘要
为了在复杂输电网中实现行波测距的最大可观性和最优经济性,提出一种基于拓展双端测距原理的行波记录装置最优配置方法。对于任意既定网络拓扑的广域系统,可以将其抽象成无向图以确定系统节点之间的最短路径。假设故障点已知,则该点到系统各个节点的最短路径也可确定,根据需至少存在一对行波测距装置能够对故障点进行定位的原则,建立一种配置优化的数学规划模型,进而确定模型求解方法,获得行波测距装置的最优配置方案。在此基础上,提出一种适度增加配置冗余性的方法,以获得在N-1情况下更高的测距可靠性。最后,以IEEE 30节点和IEEE 57节点标准系统为例,验证所提算法的正确性和可行性。
This paper proposes a new method of optimal deployment of the traveling wave recorder（ TWR）based on the extended double-end fault-location to realize maximum observability and cost-effectiveness in the complex power grid. A wide-area system can be regarded as an undirected graph. Then the lengths of the shortest paths between nodes can be computed. When a fault occurs on a certain point,the shortest paths from the point to all buses will be determined. The proposed mathematical optimization model is to guarantee that at least one pair of TWRs can be chosen to locate the fault points irrespective of their locations. A method of solving the model is chosen to find the optimal deployment strategy. Moreover, a method of increasing the degree of deployment redundancy is presented to enhance the reliability in N- 1 condition. At last,the IEEE 30-node and IEEE 57-node systems have been applied to confirm the correctness and feasibility of the algorithm.
出处
《电工技术学报》
EI
CSCD
北大核心
2016年第21期30-38,共9页
Transactions of China Electrotechnical Society
基金
国家自然科学基金项目资助(51504253)
关键词
双端行波测距
最大可观性
经济性
规划模型
可靠性
Double-end fault-location
maximum observability
cost-effectiveness
mathematical optimization model
reliability
