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Sampling value synchronizing method based on data exchange dynamic delay compensation

A data exchange and delay compensation technology, applied in the direction of synchronization devices, digital transmission systems, electrical components, etc., can solve the problems of complicated wiring, inability to share data, and high construction costs, and achieve the effect of simple wiring

Inactive Publication Date: 2014-01-29
WUHAN ZHONGYUAN HUADIAN SCI & TECH
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Problems solved by technology

[0013] The main defect of scheme ② is that it can only be applied to point-to-point wiring, which leads to complicated wiring, a large demand for the number of ports of various devices, high construction costs, and the inability to achieve real data sharing.

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  • Sampling value synchronizing method based on data exchange dynamic delay compensation
  • Sampling value synchronizing method based on data exchange dynamic delay compensation
  • Sampling value synchronizing method based on data exchange dynamic delay compensation

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Embodiment Construction

[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0048] The system that the method of the present invention is applied sees attached Figure 5 , the present invention is a method for realizing sampling value synchronization in a networking mode without external source synchronization. The absence of external source synchronization does not mean that there cannot be external source synchron...

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Abstract

The invention provides a sampling value synchronizing method based on data exchange dynamic delay compensation. The sampling value synchronizing method based on the data exchange dynamic delay compensation comprises the steps that a value Tq in a rated delay quality domain of a sampling message data package is obtained through analysis, the lingering time Td' of the sampling message data package in an interchanger is calculated, and the value of (Td'+Tq) is stored in the rated delay quality domain of the sampling message data package to replace the original Tq value. According to the sampling value synchronizing method based on the data exchange dynamic delay compensation, the storage, queuing, forwarding, cascading and other uncertain dynamic delay of the sampling value data in the interchanger can be accumulated accurately and packaged to sampling value messages, compensation parameters are provided for the synchronizing method of IED equipment, and thus the synchronization of sampling values is achieved.

Description

technical field [0001] The present invention relates to the technical field of data transmission and synchronization of sampling values ​​in smart substations in power systems (some areas are called digital substations, hereinafter referred to as smart substations), and specifically relates to a dynamic delay based on data exchange that can be applied in smart substations Compensated sample value synchronization method. Background technique [0002] In the smart substation, the sampling value is one of the basic data of the process layer, which is applied to relay protection, measurement and control, wave recording, metering and other systems. Various applications have strict requirements on the synchronization characteristics of the sampling value. The synchronization characteristics of the sampled values ​​are affected by the merging unit, transmission network, and IED (Intelligent Electronic Device, Intelligent Electronic Device) equipment, etc., and are the result of a c...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L7/00
Inventor 冯维纲任波黄勇郑君林邓政
Owner WUHAN ZHONGYUAN HUADIAN SCI & TECH
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