Design of a Grounding Grid Corrosion Detection Device Based on the Electrical Network Method

2021 ◽  
Author(s):  
Qingming Duan ◽  
Shanshan Li ◽  
Xiaofeng Yi ◽  
Hailan Song
Keyword(s):  
Electrical Network ◽  
Corrosion Detection ◽  
Grounding Grid ◽  
Network Method

Thermal analysis of laser diode module by an equivalent electrical network method

2006 ◽  
Vol 2 (4) ◽  
pp. 273-277 ◽  
Author(s):  
Ming-wei Yang ◽  
Wen-hai Xu ◽  
Wen-yan Tang
Keyword(s):  
Thermal Analysis ◽  
Laser Diode ◽  
Electrical Network ◽  
Network Method

scholarly journals Grounding grid corrosion detection based on mini-batch gradient descent and greedy method

AIP Advances ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 065034
Author(s):  
Hongpeng Xie ◽  
Fan Yang ◽  
Mingsheng Hua ◽  
Sen Liu ◽  
Jiayuan Hu ◽  
...  
Keyword(s):  
Gradient Descent ◽  
Greedy Method ◽  
Corrosion Detection ◽  
Grounding Grid

The Neural Network Method of Corrosion Diagnosis for Grounding Grid

2008 ◽  
Author(s):  
Zai-En Hou ◽  
Fu-Jian Duan ◽  
Ke-Cun Zhang ◽  
Theodore E. Simos ◽  
George Psihoyios
Keyword(s):  
Neural Network ◽  
Neural Network Method ◽  
Grounding Grid ◽  
The Neural Network ◽  
Network Method

scholarly journals Advances and Challenges of Corrosion and Topology Detection of Grounding Grid

2019 ◽  
Vol 9 (11) ◽  
pp. 2290 ◽  
Author(s):  
Zhihong Fu ◽  
Xiujuan Wang ◽  
Qian Wang ◽  
Xiaobin Xu ◽  
Nengyi Fu ◽  
...  
Keyword(s):  
Power System ◽  
Field Method ◽  
Imaging Method ◽  
Safe Operation ◽  
Detection Distance ◽  
Intelligent Computing ◽  
Corrosion Detection ◽  
Electromagnetic Imaging ◽  
Grounding Grid ◽  
Detection Technology

The grounding device plays performs the role of releasing a lightning current and a fault current in the power system, and the corrosion of the conductor will cause damage to the grounding body, which threatens the safe operation of the power system. The grounding grid corrosion detection technology and equipment guarantee the safe operation of the power system. This paper discusses the research status of grounding corrosion and topological detection in detail and introduces the basic principles, research difficulties and existing problems of the methods such as the electric network method, electromagnetic field method, electrochemical method, ultrasonic detection method and electromagnetic imaging method. The methods of electromagnetic imaging and time difference positioning proposed in recent years have been also discussed in detail. The paper points out that the application of grounding grid corrosion detection distance engineering still faces great challenges and that multi-disciplinary, multi-information fusion, new sensing technology, big data platforms and intelligent computing will be the trends to follow in research on grounding grid fault, corrosion detection and life prediction.

Application on State Evaluation of the Grounding Conductor Based on Fault Diagnosis Method

2014 ◽  
Vol 635-637 ◽  
pp. 815-818
Author(s):  
Da Xing Wang ◽  
Shou Bao Liu ◽  
De Gang Gan ◽  
Bin He
Keyword(s):  
Sensitivity Analysis ◽  
Fault Diagnosis ◽  
Network Theory ◽  
Electrical Network ◽  
Large Area ◽  
Power Failure ◽  
Grounding Grid ◽  
State Evaluation ◽  
Diagnosis Method ◽  
Diagnosis Model

In this paper, fault diagnosis model of grounding grid is established combining electrical network theory with sensitivity analysis. A new method which is used to select the node pairs to calculate the corrosion situation of grounding grid is presented. Based on this method, the fault branch of grounding grid can be efficiently judged through topology diagram and port resistance without power failure and the excavation of large area. Field test was carried out at 220 kV electrical substations using the diagnosis method. The conductors diagnosed as severely corroded was excavated. The result was identical to the diagnosis results, indicating that this diagnosis method has engineering practicality.

NETWORK METHOD OF EVOLUTION SYNTHESIS OF BEHAVIOR TESTS

2017 ◽  
Vol 25 (101) ◽  
pp. 452-457
Author(s):  
Alexander N., Martynyuk ◽  
◽  
Dmitry Oleksandrovich, Martynyuk ◽  
Anna S., Sugak
Keyword(s):  
Network Method
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