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A time synchronization method and system for a distribution network transient recording device

A time synchronization system and time synchronization technology, applied in the field of power system, can solve the problems of large signal interference and high transmission delay, and achieve the effects of good anti-interference, high time synchronization accuracy, and uniqueness guarantee.

Active Publication Date: 2019-05-03
JIANGSU ELECTRIC POWER CO
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Therefore, in the distribution network environment with complex electromagnetic environment, large signal interference and high transmission delay, it is necessary to design a high-precision time synchronization method

Method used

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  • A time synchronization method and system for a distribution network transient recording device
  • A time synchronization method and system for a distribution network transient recording device
  • A time synchronization method and system for a distribution network transient recording device

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Embodiment Construction

[0028] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0029] As a first aspect of the present invention, a time synchronization method for a distribution network transient recording device is provided, wherein the distribution network transient recording device includes a plurality of endpoints, and each endpoint includes three acquisition terminals and A converging terminal, such as figure 1 As shown, the time synchronization method of the distribution network transient recording device includes:

[0030] S110. The converging end of each endpoint compiles different pseudo-random codes for the three collection ends of the endpoint;

[0031] S120. The converging end encodes the pseudo-random code and time synchron...

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Abstract

The invention relates to the technical field of power systems, and particularly discloses a time synchronization method of a distribution network transient recording device. wherein the distribution network transient recording device comprises a plurality of endpoints, each endpoint comprises three acquisition ends and a convergence end, and the time synchronization method of the distribution network transient recording device comprises the following steps: the convergence end of each endpoint respectively compiles different pseudo-random codes for the three acquisition ends of the endpoint; The aggregation end encodes the pseudo-random code of the end point and the time synchronization information and sends the encoded pseudo-random code and time synchronization information to the acquisition end of the end point; And each acquisition end of each end point decodes the time synchronization information carrying the pseudo-random code after receiving the time synchronization informationcarrying the pseudo-random code, and identifies respective time synchronization information according to different pseudo-random codes. The invention also discloses a time synchronization system of the distribution network transient recording device. The time synchronization method of the distribution network transient recording device has the advantages of being small in occupied wireless bandwidth, good in anti-interference performance, high in time synchronization precision and wide in action range.

Description

technical field [0001] The invention relates to the technical field of power systems, in particular to a time synchronization method for a distribution network transient recorder and a time synchronization system for a distribution network transient recorder. Background technique [0002] The fault location of the distribution network requires multi-point deployment and control, three-phase multi-point wave recording fault signals, comprehensive judgment and fault point location, which requires the consistency of multi-terminal and multi-point time. The time scale remains the same. [0003] For the time synchronization applied to the transient wave recording device of the overhead transmission line of the distribution network, due to the complex electromagnetic radiation environment around the overhead transmission line, there is certain interference to the communication between the radio frequency equipment, and each endpoint of the distribution network fault recorder It i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/06H02J13/00
CPCY04S40/126Y02E60/00
Inventor 唐建清吕峰吴波袁海星王文瑞沈海平鲁方林
Owner JIANGSU ELECTRIC POWER CO
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