Power equipment time synchronization method based on 5G-TSN

A technology of 5G-TSN and power equipment, applied in the direction of synchronization devices, electrical components, wireless communication, etc.

Pending Publication Date: 2022-07-29
STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST
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Problems solved by technology

However, this method requires high-precision channel estimation, and is prone to search errors

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  • Power equipment time synchronization method based on 5G-TSN
  • Power equipment time synchronization method based on 5G-TSN
  • Power equipment time synchronization method based on 5G-TSN

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[0091] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of the present invention.

[0092] refer to figure 1 , this example is based on the 5G-TSN time synchronization method for power equipment, and the implementation steps are as follows:

[0093] Step 1. The base station distributes the reference time information.

[0094] The 5G base station sends reference time information to the user equipment UE, which is forwarded to the UE using the 5G radio ...

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Abstract

The invention discloses a power equipment time synchronization method based on a 5G-TSN, and mainly solves the problem that rapid synchronization of time information is difficult to realize in an existing smart power grid. According to the implementation scheme, a 5G base station sends reference time information to power equipment, and the power equipment receives an SIB9 message and obtains time information; then, the power equipment generates a positioning reference signal (PRS), and sends the signal to the base station for executing time of arrival (TOA) measurement; the base station detects a PRS signal, carries out time delay estimation, judges the strongest correlation peak to estimate integer time delay by maximizing a mixed correlation value, and estimates decimal time delay by carrying out finite iteration in a frequency domain; then, the base station adjusts or feeds back the estimated time delay to the power equipment by using a TA command, and the power equipment receives the feedback and adjusts time information to complete synchronization; the method improves the precision of time synchronization, guarantees the rapid formation of the time domain, and can be used for time synchronization in a smart power grid.

Description

technical field [0001] The invention relates to the technical field of power equipment time synchronization, in particular to a 5G-TSN-based power equipment time synchronization method. Background technique [0002] In recent years, State Grid has actively promoted the construction of smart grids. With the rapid development of power information collection, distribution automation and other technologies, there is an urgent need for real-time, reliable and efficient new communication technologies. In terms of fault protection, it has the highest requirements for communication performance, reliability > 99.99%, and delay < 10ms. In addition, the clock synchronization between the devices in the power system is required, and the synchronization error is less than 20 μs to ensure the effective and normal operation of the smart grid. [0003] The current data exchange and fault protection of smart grids are mainly realized through wired networks, but with the continuous dev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W56/00
CPCH04W56/001H04W56/004
Inventor 韩伟张峰刘磊马伟东刘超韩源段文岩王阳乔利红李晓辉张喜庆王先文李欢洋
Owner STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST
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