论文信息 - Testability Analysis of Grounding Grids Using Network Transformation

Testability Analysis of Grounding Grids Using Network Transformation

A novel topology analysis method is presented to analyze the testability of grounding grids, and creditability is firstly proposed as an important index to evaluate the results. In this method, inaccessible nodes are eliminated by wye-delta transformation, followed by the calculation of testability and creditability index in the reverse direction. Simulation results are provided to prove this method.

Liqiang Liu | Xianjue Luo | Tao Niu | Yingjiao Zhang | Debo Zhang

[1] E. Felt,et al. Analog testability analysis and fault diagnosis using behavioral modeling , 1994, Proceedings of IEEE Custom Integrated Circuits Conference - CICC '94.

[2] Li Guang-he. Research of fault diagnosis of grounding grid of electric power plants and substations , 2009 .

[3] Wang Sen. Grounding Grids Corrosion Diagnosis Based on Hierarchical Simplification of Network Topology , 2008 .

[4] Stefano Manetti,et al. Finding ambiguity groups in low testability analog circuits , 2000 .

[5] Jinliang He,et al. The theory and implementation of corrosion diagnosis for grounding system , 2002, Conference Record of the 2002 IEEE Industry Applications Conference. 37th IAS Annual Meeting (Cat. No.02CH37344).

[6] Wang Sen. AN IMPROVED ALGORITHM OF CORROSION DIAGNOSIS FOR GROUNDING GRIDS & ITS EVALUATION , 2005 .

[7] F. Dawalibi. Electromagnetic Fields Generated by Overhead and Buried Short Conductors Part 2 - Ground Networks , 1986, IEEE Transactions on Power Delivery.

[8] Liu Jian,et al. Parallel algorithms for grounding grids corrosion diagnosis to improve computation speed , 2010, 2010 2nd IEEE International Conference on Information Management and Engineering.

[9] B. Zhang,et al. Diagnosis of breaks in substation's grounding grid by using the electromagnetic method , 2002 .