摘要
为了提高故障诊断效率,提出了一种基于节点分区的方法,将本征接地网拆分成若干小规模子网络求解。推导出关于本征支路电导的线性方程组,避免了求解非线性方程的迭代过程。为提高测试效率,提出采用计算机控制的自动化测试系统。基于动态规划的思想,探讨了常规测试设备时测试方案的生成方法。在60条支路的实验接地网上进行验证,结果表明建议的方法是可行的,能够减少测试次数并提高测试效率。
To improve the efficiency of the corrosion diagnosis, a novel block dividing based approach was put forward. The intrinsic network of a grounding grid was divided into several small-scale sub-grids. A set of linear equations for conductance of the intrinsic branches in the sub-grid was deduced, as a result, the nonlinear iteration is avoided. A new automatic measuring system based on computer control was suggested. A dynamic planning based procedure to obtain the optimal testing schemes was proposed for the test based on conventional testing devices. An experimental grounding grid with sixty branches was used as an example. The results of corrosion diagnosis show that the proposed approaches are feasible with the testing works remarkably reduced.
出处
《中国电力》
CSCD
北大核心
2009年第11期49-51,共3页
Electric Power
基金
教育部"新世纪优秀人才支持计划"资助项目(NCET-05-0875)
关键词
接地网
故障诊断
分块
测试方案
优化
grounding grids
corrosion diagnosis
block dividing approaches
test schemes
optimization
