This article analyzes the differences in device naming and archiving between data files in the infrastructure and operation stages of the powergrid, and studies the method of device naming association based on relati...
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The design drawings in powergrid engineering construction usually need to be transferred to the equipment operation and maintenance stage. However, due to the differences between the actual construction process and t...
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The security of powergrid is closely related to national security and social stability. With the development of smart grid and big data, grid data security has ushered in new challenges. The data provenance is one of...
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Under the development and reform of the new powergrid, the technology of drawing single line diagrams also needs to be developed and reformed urgently. In the past, single line diagrams were drawn mostly by manpower....
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Due to the diversity of data types and data organization methods of electric multi-source heterogeneous data, the organization and storage requirements of heterogeneous data are also different, so the difference of he...
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In this paper, a kind of digital twin dynamic polymerization technology based on clustering and intelligent analysis is studied. In the first step, the goal and business requirements of device-level digital twin polym...
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In the construction of clean and low-carbon community energy management systems, the challenges of the new era of low-carbon community development lie in monitoring and utilizing the massive panoramic information obta...
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In the era of big data, electric power sensitive data recognition and network intrusion detection are concerned. Accurate pattern matching based sensitive data recognition software has low matching efficiency, poor fl...
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In recent years, distributed photovoltaics, decentralized wind power, new loads, electric vehicles, etc. have been connected to the powergrid in a wide range, and the distribution network has become more active, with...
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ISBN:
(纸本)9789819912292
In recent years, distributed photovoltaics, decentralized wind power, new loads, electric vehicles, etc. have been connected to the powergrid in a wide range, and the distribution network has become more active, with strong fluctuations, and large peak-to-valley differences. The management and coordination of distributed resources interaction put forward higher requirements. This paper conducts research on the data interconnection and mapping technology of virtual and real space for digital twins. The first step is to study the modeling and driving technology of data interconnection, fusion mechanism model, and information model based on the real twin of the powergrid. Coordinate data and monitoring data of main and auxiliary equipment and the data interconnection mechanism of the powergrid real scene twin, build a dual-mode driving method that integrates the mechanism model and data model;the second step is to study the powergrid "virtual-real" space multi-service continuous mapping mechanism and real-time data. The panoramic mapping method realizes the continuous and real-time mapping of point data and surface data to the digital twin and realizes multi-block, multi-level, and multi-type mapping according to the steps of feature extraction, feature matching, model parameter estimation, transformation, and interpolation. The digital twin data is accurately matched;the third step is to study the efficient transmission and update integration technology of twin data in the powergrid environment, research methods to improve the real-time and concurrency of data transmission, and research multi-source heterogeneous data dynamic update and integration technology. The fourth step is to study the two-way intelligent cooperation and integration technology of station equipment, realize real-time data interaction and state interaction between the virtual digital model and the real physical model, and realize the interconnection and mapping between the station panoramic m
The core of digital twin is the digital reconstruction of physical space, that is the physical space perception and processed data are applied to the virtual space to achieve real-time mapping of physical space throug...
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