Channel allocation method considering wireless relay networking of transformer substation

Abstract

The invention provides a channel allocation method considering wireless relay networking of a transformer substation, and solves the problems that the networking mode of an existing transformer substation causes poor communication flexibility of a power grid, and an orthogonal frequency division multiple access technology used by a wireless communication network of the transformer substation cannot fully utilize channel resources. Based on based on maximum communication distance of a center node, wireless access points are divided into a to-be-networked set and a to-be-allocated channel set, relay points are selected for the wireless access points in the to-be-networked set to form a distributed networking mode of wireless relay networking of a transformer substation, the defect of poor flexibility is overcome, a power gain and a channel matching value are combined, and a most matched channel is judged. Based on the non-orthogonal frequency division multiple access technology, the defect that only one wireless access point is accommodated in one channel when the orthogonal frequency division multiple access technology is applied is overcome, the wireless access point accommodated in the channel is determined by taking maximization of energy efficiency as a target, the utilization rate of the channel is ensured, and the maximum energy efficiency is also ensured.

Description

technical field [0001] The present invention relates to the technical field of substation wireless communication, and more specifically relates to a channel allocation method considering substation wireless relay networking. Background technique [0002] With the deepening of substation wireless network development, wireless communication research for substations in the communication field has also become a hot topic. However, due to the complexity and particularity of the power grid environment, even today, our understanding of substations is still very limited. [0003] Substation wireless network communication mainly depends on grid communication, and grid communication has the characteristics of high energy consumption, low transmission rate and long delay, which makes it face many challenges. Due to the complexity of the substation, it is difficult to solve the problem in time once there is a problem in the grid communication. Therefore, it is difficult to realize the h...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing substation networking mode leads to poor communication flexibility of the power grid, and the OFDMA technology used in the substation wireless communication network makes the channel resources of the power grid communication unable to be fully utilized, the present invention proposes a substation The channel allocation method of wireless relay networking improves the flexibility of power grid communication and makes full use of channel resources

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