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Spectrum management method and system based on smart grid double-layer cognitive network architecture

A technology of smart grid and cognitive network, applied in the field of power grid

Active Publication Date: 2017-09-05
CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
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Problems solved by technology

[0004] Based on this, it is necessary to provide a spectrum management method and system based on the two-layer cognitive network architecture of the smart grid to effectively improve the various types of power grids. The reliability of communication services promotes the development and promotion of smart grid power distribution automation

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  • Spectrum management method and system based on smart grid double-layer cognitive network architecture

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Embodiment Construction

[0026] In order to explain the principles of the spectrum management method and system based on the two-layer cognitive network architecture of the smart grid and the remarkable effects brought by the present invention, the following will first describe the two-layer cognitive network architecture based on the smart grid.

[0027] Such as figure 1 shown. Due to the strong heterogeneity of power-specific communication services and the great difference in QoS requirements, how to use the spectrum resources under the two-layer network architecture to give full play to the time-varying characteristics of communication services and meet the requirements of resource utilization and service transmission quality has become an important issue for power communication. One of the problems that the Internet needs to solve urgently. Applying cognitive radio technology to the double-layer network structure of the smart grid will effectively improve the reliability of various communication ...

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Abstract

The invention provides a spectrum management method and system based on a smart grid double-layer cognitive network architecture. The method comprises the following steps: receiving a spectrum conversion request, performing spectrum allocation between power information terminals in the smart grid double-layer cognitive network architecture by using a graph coloring part of an interference reduction type graph coloring-simulated annealing fusion algorithm, obtaining real-time spectrum information, establishing an available spectrum matrix and an inter-cell spectrum interference matrix, establishing a local solution list, calculating the optimum spectrum allocation through a simulated annealing part of the interference reduction type graph coloring-simulated annealing fusion algorithm according to the established local solution list and the inter-cell spectrum interference matrix, and feeding back an optimum spectrum allocation result to the power information terminals. During the entire process, by taking the interference reduction type graph coloring-simulated annealing fusion algorithm as a spectrum management allocation core, an optimum spectrum allocation strategy of a smart grid double-layer network can be quickly acquired, and spectrum resources in the network can be fully used.

Description

technical field [0001] The invention relates to the technical field of power grids, in particular to a spectrum management method and system based on a two-layer cognitive network architecture of a smart grid. Background technique [0002] With the rapid development of the smart grid, the existing wireless network resources have been unable to meet the diverse needs of various communication services in the grid. Due to the history of spectrum allocation and other reasons, the currently authorized frequency bands available in the power industry are only 40 discrete frequency points based on 230MHz frequency, each frequency point has a bandwidth of 25kHz, and a total bandwidth of 1MHz. Facing the development of various power services such as distribution network automation and metering automation, electric vehicle piles, video surveillance services, and energy Internet, the number of terminals covered by wireless private networks is increasing rapidly, and communication servic...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04W72/08
CPCH04W72/0453H04W72/54
Inventor 郭起霖张斌陈辉煌沈文光王隆曹扬黄盛
Owner CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
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