Research on a rail-robot based remote three-dimensional inspection system for switch stations in power distribution network

2017 ◽  
Author(s):  
Tang Haiguo ◽  
Zhu Jiran ◽  
Gong Fangliang ◽  
Leng Hua ◽  
Fan Min ◽  
...  
Keyword(s):  
Power Distribution ◽  
Distribution Network ◽  
Three Dimensional ◽  
Inspection System ◽  
Power Distribution Network ◽  
Dimensional Inspection

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%.

Influence of distributed power supply in distributed power distribution network

2021 ◽  
pp. 1-8
Author(s):  
Xin Shen ◽  
Hongchun Shu ◽  
Min Cao ◽  
Nan Pan ◽  
Junbin Qian
Keyword(s):  
Power Supply ◽  
Power Distribution ◽  
Short Circuit ◽  
Power Grid ◽  
Distribution Network ◽  
Distribution Networks ◽  
Power Supplies ◽  
Power Distribution Network ◽  
Power Sources ◽  
Distributed Power

In distribution networks with distributed power supplies, distributed power supplies can also be used as backup power sources to support the grid. If a distribution network contains multiple distributed power sources, the distribution network becomes a complex power grid with multiple power supplies. When a short-circuit fault occurs at a certain point on the power distribution network, the size, direction and duration of the short-circuit current are no longer single due to the existence of distributed power, and will vary with the location and capacity of the distributed power supply system. The change, in turn, affects the current in the grid, resulting in the generation and propagation of additional current. This power grid of power electronics will cause problems such as excessive standard mis-operation, abnormal heating of the converter and component burnout, and communication system failure. It is of great and practical significance to study the influence of distributed power in distributed power distribution networks.

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