scholarly journals Research on Visual Monitoring System of Line Loss in Power Internet of Things and Power Distribution Network

2021 ◽  
Vol 2033 (1) ◽  
pp. 012051
Author(s):  
Xueqin Zhang ◽  
Chengjun Huo ◽  
Xudong Wang ◽  
Mengzan Li ◽  
Xiaojun Sun ◽  
...  
Keyword(s):  
Internet Of Things ◽  
Monitoring System ◽  
Power Distribution ◽  
Distribution Network ◽  
Power Distribution Network ◽  
Visual Monitoring ◽  
Line Loss ◽  
Visual Monitoring System

scholarly journals Power Distribution Network Based on Digital 3D Twin Panoramic Modeling

2020 ◽  
Vol 204 ◽  
pp. 02005
Author(s):  
Zhan Chao ◽  
Luo Yizhao ◽  
Li Ronggui ◽  
Gao Jun ◽  
Zhang Mi
Keyword(s):  
Power Distribution ◽  
Power Grid ◽  
Distribution Network ◽  
Three Dimensional ◽  
Current Method ◽  
Virtual Space ◽  
Power Distribution Network ◽  
Digital Twins ◽  
Average Current ◽  
Line Loss

Digital twins refer to virtual digital expressions constructed in virtual space that can characterize characteristics, the formation process and behavior of natural entities, and it has the characteristics of multi-physics, multi-scale and probability. This article mainly introduces the application research of digital 3D twin panorama modeling in power distribution network. This paper proposes the average current method to calculate the line loss of the power distribution network, so that the accuracy is guaranteed. In addition, the digital three-dimensional panoramic modeling method is used to optimize the grid system, and the data structure is used to calculate the power distribution network. Analyze the topological structure of the power grid, and then obtain the calculation method of the distribution network line loss. The experimental results in this paper show that the rendering efficiency of power grid results has increased by 17% based on the digital 3D twin panorama modeling, and the method and algorithm for matching video and panorama image are proposed, which solves the problem of video rotation angle on the panorama connection, so that The smoothness of panoramic roaming is improved by 23%.

Intelligent Power Distribution Visual Monitoring System

2021 ◽  
Author(s):  
Xiaohuan Wu ◽  
Jiajin Qi ◽  
Huanqiang Zhong ◽  
Zhongwei Zhao
Keyword(s):  
Monitoring System ◽  
Power Distribution ◽  
Visual Monitoring ◽  
Visual Monitoring System

Development of a Visual Monitoring System for Deformation Measuring of Welded Members and its Application

2008 ◽  
Vol 580-582 ◽  
pp. 557-560 ◽  
Author(s):  
J.G. Han ◽  
Kyong Ho Chang ◽  
Gab Chul Jang ◽  
K.K. Hong ◽  
Sam Deok Cho ◽  
...  
Keyword(s):  
Monitoring System ◽  
Three Dimensional ◽  
Measuring Method ◽  
Welding Residual Stress ◽  
Measuring System ◽  
Visual Monitoring ◽  
Test Error ◽  
Steel Members ◽  
Loading Tests ◽  
Visual Monitoring System

Recently, in the loading tests for steel members, the deformation value is measured by calculating a distance of both cross-heads. This measuring method encounters a test error due to various environmental factors, such as initial slip, etc.. Especially, in the case of welded members, the non-uniform deformation behavior in welded joints is observed because of the effect of welding residual stress and weld metal. This is mainly responsible for a test error and a loss of the reliability for used test instruments. Therefore, to improve the accuracy and the applicability of measuring system, it is necessary to employ a visual monitoring system which can accurately measure the local and overall deformation of welded members. In this paper, to accurately measure a deformation of welded members, a visual monitoring system (VMS) was developed by using three-dimensional digital photogrammetry. The VMS was applied to the loading tests of a welded member. The accuracy and the applicability of VMS was verified by comparing to the deformation value measured by a test instrument (MTS-810). The characteristics of the behavior near a welded joint were investigated by using VMS.

Research on transformer vibration monitoring and diagnosis based on Internet of things

2021 ◽  
Vol 30 (1) ◽  
pp. 677-688
Author(s):  
Zhenzhuo Wang ◽  
Amit Sharma
Keyword(s):  
Internet Of Things ◽  
Power Distribution ◽  
Vibration Analysis ◽  
Vibration Monitoring ◽  
Power Transformers ◽  
Normal Operation ◽  
Analysis Method ◽  
Power Distribution Network ◽  
Monitoring And Diagnosis ◽  
Distribution Transformers

Abstract A recent advent has been seen in the usage of Internet of things (IoT) for autonomous devices for exchange of data. A large number of transformers are required to distribute the power over a wide area. To ensure the normal operation of transformer, live detection and fault diagnosis methods of power transformers are studied. This article presents an IoT-based approach for condition monitoring and controlling a large number of distribution transformers utilized in a power distribution network. In this article, the vibration analysis method is used to carry out the research. The results show that the accuracy of the improved diagnosis algorithm is 99.01, 100, and 100% for normal, aging, and fault transformers. The system designed in this article can effectively monitor the healthy operation of power transformers in remote and real-time. The safety, stability, and reliability of transformer operation are improved.

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