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Optical network system and transmission method for sampling value service in substation

A sampling value and substation technology, which is applied in the field of optical network systems and transmission, can solve problems such as reduced reliability, reduced economic costs, equipment data error loss, etc., and achieves the effect of reducing data competition problems and reducing transmission delay

Active Publication Date: 2019-02-15
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +3
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] In order to make up for the deficiencies of the existing technology, the present invention provides an optical network system and transmission method for the sampling value business in the substation, and adopts the optical switching method to solve the problem of reduced reliability caused by large heat generation in the Ethernet technology switching equipment currently used. The equipment is susceptible to problems such as data error and loss caused by the interference of the complex electrical measurement environment of the substation; the transmission network of the sampling value business in the substation is not only more efficient, safer, easy to expand, but also greatly reduces the economic cost

Method used

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  • Optical network system and transmission method for sampling value service in substation
  • Optical network system and transmission method for sampling value service in substation
  • Optical network system and transmission method for sampling value service in substation

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Embodiment

[0050] Example: Combining Figure 1 to Figure 3 Taking the merging unit xy (x≤m, y≤n, x, y are positive integers) to multicast SV data to the protection device xy, the measurement and control device xy, the network analysis device, the bus differential protection device, and the fault recording device as an example, the description The process of data exchange in the network.

[0051] Merge unit xy using λ y The wavelength channel sends the SV data to the slave node x, which is input to the y input terminal of the slave node x. The optical signal is demultiplexed by the y-th splitter S1y, and two of them are output from the y' and y" output terminals, and the SV data is transmitted to the The protection device xy, the measurement and control device xy, and the other path are multiplexed by the first wavelength division multiplexer S21, and sent from the output terminal of the slave node n+1 to the input port of the master node x. After demultiplexing and photoelectric conver...

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Abstract

The invention relates to an optical network system and transmission method oriented to a sampling value service in a transformer substation. The optical network system comprises m*n*k electronic current / voltage transformers, m*n combination units, m*n protection devices, m*n measurement and controlling devices, m slave nodes, one main node, a network analysis device, a bus difference protection device and a fault recording and playing device. The sampling data of the combination unit at each interval in the transformer substation is transmitted to the protection device and the measurement and controlling device at the abovementioned interval, the network analysis device, the bus difference protection device and the fault recording and playing device through the slave nodes and the main nodes. The system is suitable for different transmission protocols and rate levels; the problem of data blockage during exchange of the sampling data in the slave nodes is solved; and the network performance is improved.

Description

technical field [0001] The invention relates to the field of optical fiber communication, in particular to an optical network system and a transmission method for sampling value services in a substation. Background technique [0002] In the substation, the sampling value data of the electronic current / voltage transformers gathered by the merged units in each bay are transmitted to the protection devices, measurement and control devices of each bay, and the bus differential protection device, network analysis device and fault recorder of each bay through the intra-station communication network. Each device monitors and protects the primary equipment in the substation according to the received sampling value; therefore, ensuring the correct and efficient transmission of the sampling value service in the substation in the communication network is the basic condition for realizing automatic protection in the substation. [0003] In the substation, the sampled value service trans...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/25H04Q11/00
Inventor 孙小菡吴鹏张小建郑宇马士杰毛子荐朱敏樊鹤红于鹏飞陈伟吴军民郭经红张刚
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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