Grounding Grids Corrosion Diagnosis Based on A Block Dividing Approach
- DOI
- 10.2991/meic-14.2014.73How to use a DOI?
- Keywords
- grounding grids;corrosion diagnosis; diagnosis within a block; test with a part; dichotomy algorithm
- Abstract
To benefit the corrosion diagnosis, the concepts of blocks and their prototypes, uncertain-branch groups and their prototypes, projection of blocks and part of touchable nodes are defined. A new approach of grounding grids corrosion diagnosis by blocks is putting forward. According to the desired corrosion diagnosis area, the blocks together with their projections and the parts of touchable nodes, which participate in diagnosis are determined. According to the testing data of the corresponding parts, the resistances of intrinsic branches in a block can be determined by a linear least square method, based on which, the resistances of clear branches in the block can be worked out. The ranges of resistances of uncertain-branches in the block are also evaluated by a dichotomy algorithm. With the proposed approach, a grounding grid can be divided into several small scaled sub-grids to solve. As a result, the efficiency is improved and the cross-interference is reduced. An experimental grounding grid with sixty branches is used as an example. The results of corrosion diagnosis show that the proposed approaches are feasible and only a few tests are needed to meet the requirement of diagnosing a certain part of the grounding grid.
- Copyright
- © 2014, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Yunfeng Ni AU - Li Xu AU - Shuqi Wang PY - 2014/11 DA - 2014/11 TI - Grounding Grids Corrosion Diagnosis Based on A Block Dividing Approach BT - Proceedings of the 2014 International Conference on Mechatronics, Electronic, Industrial and Control Engineering PB - Atlantis Press SP - 324 EP - 329 SN - 2352-5401 UR - https://doi.org/10.2991/meic-14.2014.73 DO - 10.2991/meic-14.2014.73 ID - Ni2014/11 ER -