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Region intelligent protection system of transformer substation

A technology for intelligent protection and substations, applied in information technology support systems, electrical components, circuit devices, etc., can solve problems such as failure protection, partition differential, etc.

Inactive Publication Date: 2015-05-06
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of how to realize comprehensive management of substations in a wider range, how to determine the number of devices according to actual needs, how to convert digital signals into actual switch control operations, and how to realize partition differential and failure protection, the present invention designs a substation regional intelligent protection system

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  • Region intelligent protection system of transformer substation

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specific Embodiment approach 1

[0018] Specific implementation mode one, see figure 1 This embodiment will be described. The regional intelligent protection system of the substation described in this embodiment includes a maintenance workstation server, three regional intelligent protection hosts, multiple pre-processing units The data and control network realizes data transmission with each regional intelligent protection host and maintenance workstation server; each substation corresponds to a substation pre-processing unit and one or more interval slaves;

[0019] Each bay sub-machine includes an intelligent processing unit, an analog data acquisition device, a data merging unit MU, and a switching value acquisition device. The analog data acquisition device realizes the analog data acquisition of each analog channel in the substation interval, and sends the collected data to To the data merging unit MU, the data merging unit MU combines all the input analog data and sends it to the corresponding pre-pro...

specific Embodiment approach 2

[0027] Embodiment 2. The difference between this embodiment and the substation regional intelligent protection system described in Embodiment 1 is that the high-speed data and control network uses optical fiber to realize data transmission.

specific Embodiment approach 3

[0028] Embodiment 3. The difference between this embodiment and the regional intelligent protection system of the substation described in Embodiment 1 is that each regional intelligent protection host adopts a triple configuration.

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Abstract

The invention discloses a region intelligent protection system of a transformer substation and relates to the technical field of control over transformer substation, and the region intelligent protection system is used for solving the problems of poor control flexibility and poor harmony among power grids at different levels in an existing intelligent transformer substation. The region Intelligent protection system comprises maintenance work station server, three region intelligent protection mainframes, a plurality of instation preprocessing units, and a plurality of interval submachines, wherein the plurality of instation preprocessing units achieve transferring data together with each region intelligent protection mainframe and the maintenance work station server by virtue of through high speed data and a control network; each transformer substation is correspondingly provided with one instation preprocessing unit and one or more interval submachine; each interval submachine is used for achieving the collection of analog quantity data and discrete data and sending the collected data to the corresponding instation preprocessing unit by adopting the protocol of IEC61850-9-2; and the instation preprocessing units are used for sending control commands received from the high speed data and the control network to the corresponding interval submachines. The region intelligent protection system disclosed by the invention is suitable for the existing transformer substation.

Description

technical field [0001] The application relates to the technical field of substation control. Background technique [0002] Smart substation is the development direction of substation technology. It is the foundation and an important part of the construction of a strong smart grid. It should provide important technical support for the informatization, automation, and interaction of smart grids. Therefore, it will emphasize integration, flexibility, interaction, optimization, and management, and embody the characteristics of integration, information standardization, and collaborative interaction. In short, it should have strong intelligence based on information sharing. [0003] However, in the current substation automation system, the implementation of each relay protection is oriented to the bay / element, that is, the information objects of a set of protection / control equipment mainly come from the bay (a small amount of other information in the station), except for the line ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J13/00
CPCY02E60/00Y04S10/16
Inventor 田雪枫田靖桐姜云龙
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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