Power communication synchronization network full-synchronization evolution method for primary reference clock matched hydrogen clock

A reference clock and full synchronization technology, which is applied in the direction of synchronization device, multiplex communication, electrical components, etc., can solve the problem of not giving the unit, etc., and achieve the effect of increased accuracy, simple and easy solution, and high precision

Active Publication Date: 2015-05-13
CHINA ELECTRIC POWER RES INST +1
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Problems solved by technology

[0004] The definition of frequency accuracy is measured by the atomic second, the basic unit of time in the international unit. In actual measurement, a reference frequency source is used as a relative basis, and the unit is not given in the reports and reference materials of the prior art

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  • Power communication synchronization network full-synchronization evolution method for primary reference clock matched hydrogen clock

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Embodiment Construction

[0016] It is known that the code slip period of the synchronous equipment is calculated by the frequency deviation. When the frequency deviation is better than ±1E-13, the calculated code slip period is 20 years, that is, the code slip will not occur when the synchronous equipment is returned, so Improving the frequency accuracy of the main reference clock PRC can make the frequency deviation between the PRCs better than ±1E-13, which can be considered to achieve full synchronization.

[0017] Based on the above principles, the scheme adopts the method of improving the accuracy of network operation frequency. At present, the power communication synchronization network has multiple synchronization areas and multiple master reference clocks in the entire network. The master-slave synchronization mode runs in the area, and there is no frequency deviation under normal conditions, which meets the requirements of G.811. figure 1 shown. In the figure, PRC (Principal Reference Clock)...

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Abstract

The invention provides a power communication synchronization network full-synchronization evolution method for a primary reference clock matched hydrogen clock. One or a group of hydrogen clocks of which the frequency accuracy is one or two order higher than 1E-14 are matched with each PRC primary reference clock based on the principle of improving network operation frequency accuracy. Therefore, the frequency accuracy of the PRC is superior to + / -5E-14, and the frequency deviation between PRC clocks is reduced so as to fulfill the aim of full synchronization.

Description

technical field [0001] The invention relates to the field of full synchronization of a power communication synchronization network, in particular to a full synchronization evolution method of a power communication synchronization network in which a master reference clock matches a hydrogen clock. It is used to change the situation that there are multiple large synchronization areas and multiple independently operating main reference clocks PRC in the current synchronization network, and solve the problem of synchronization hidden dangers in the communication between each synchronization area, especially the communication network between the power communication private network and other operators Communication problems caused by out-of-sync to achieve network-wide synchronization. Background technique [0002] Synchronization network for communication in foreign countries started early and has been fully researched, and has been relatively perfect after years of construction....

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H04J3/06H04L7/00
Inventor滕玲汪洋陈喆丁慧霞
OwnerCHINA ELECTRIC POWER RES INST