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Method for calling parameters of power distribution terminal by power distribution master station under wireless public network communication

A technology of power distribution main station and power distribution terminal, applied in electrical components, circuit devices, information technology support systems, etc., can solve the problems of inability to effectively obtain power distribution terminal parameter information, not meeting the requirements of comprehensive perception, etc. Summon accurate and controllable, easy to master, simple steps

Pending Publication Date: 2022-01-14
ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for terminal functional parameter information (for example: voltage-time segment mode, voltage-time contact mode, three-stage current protection and other function switching), fixed value parameter information (for example: X time limit, Y time limit, Z time limit, time for zero-voltage tripping, zero-voltage limit value, etc.), communication parameter information, etc. There is no definition in the 101 statute, that is, the main power distribution station cannot effectively obtain the parameter information of the power distribution terminal, which does not meet the requirements of the digital grid for comprehensive perception of equipment operating status

Method used

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  • Method for calling parameters of power distribution terminal by power distribution master station under wireless public network communication

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Experimental program
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Effect test

Embodiment 1

[0019] A method for calling power distribution terminal parameters by a power distribution master station under wireless public network communication, comprising the following steps:

[0020] Step 1. The power distribution master station sends a parameter call command frame to the power distribution terminal. The type identifier of the parameter call command frame is TI=108, and the transmission reason COT=6. The parameter call command frame is used as the power distribution master station Call the start command of the power distribution terminal parameters;

[0021] Step 2: After the power distribution terminal receives the parameter call command frame issued by the power distribution master station, it first replies with an affirmative confirmation frame, and then sends a parameter call activation confirmation frame to the power distribution master station, and the parameter call is activated Acknowledgment frame type identifier TI=108, transmission reason COT=7, as a confir...

Embodiment 2

[0025] The difference from Embodiment 1 is that the communication between the power distribution master station and the power distribution terminal adopts the wireless public network mode, based on the IEC60870-5-101 balanced communication protocol, strictly in accordance with the general IEC60870-5-3 The structure defines the corresponding application service data unit, and the application service data unit is constructed using the definition and coding specifications of the application information element in IEC60870-5-4. In terms of the frame format of the power distribution master station and the power distribution terminal, remote maintenance involves instructions The frame format adopts the variable length frame in FT1.2 frame format, which is used for the interaction of maintenance data between the power distribution master station and the power distribution terminal.

[0026] The process of calling the parameters of the power distribution master station and the power di...

Embodiment 3

[0028] The difference from the first embodiment is that the parameters of the distribution terminal called by the power distribution master station in the first step include calling all parameters and parameter group calling, and the parameter group calling is mainly used for parameter calling of each interval of the switch station , is controlled by the parameter calling qualifier ROI in the parameter calling command frame, ROI=20 means calling all parameters, ROI=21 means calling the switching station 901 interval parameters, and so on.

[0029] The power distribution master station calls the power distribution terminal parameters are selected by the power distribution master station to call all parameters or parameter group calls, and the power distribution terminal responds to the call of the power distribution master station All parameters or parameter group call, the parameter call is activated The parameter call qualifier ROI in the confirmation frame and the terminal pa...

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Abstract

The invention discloses a method for calling power distribution terminal parameters by a power distribution master station under wireless public network communication, which belongs to the field of power feeder automation and comprises the steps of parameter calling command, parameter calling activation confirmation, terminal parameter data and parameter calling ending. Parameter calling is initiated by the power distribution master station system, a parameter calling command frame is issued to the power distribution terminal, the power distribution terminal packages parameters of the power distribution terminal and uploads the parameters to the power distribution master station after replying a parameter calling activation confirmation frame, finally the power distribution master station receives a parameter calling ending frame sent by the power distribution terminal, and the parameter calling process is ended. The parameter information of the power distribution master station calling the power distribution terminal is defined, the power distribution automation master station and the power distribution terminal adopt a wireless public network communication mode, extension is carried out on the basis of the existing IEC60870-5-101 balanced communication protocol technology, the overall protocol architecture is not influenced, the original communication function of the 101 protocol is not influenced. And the method has the characteristics of simple steps and clear logic.

Description

technical field [0001] The invention belongs to the field of electric power feeder automation, and in particular relates to a method for calling power distribution terminal parameters by a power distribution master station under wireless public network communication. Background technique [0002] In recent years, the needs of power customers have shown new characteristics such as diversification, personalization and interaction, which pose challenges to traditional power grids. Digital transformation and transformation are being carried out, requiring grid managers to be able to fully perceive the operation of the grid, equipment parameters, load conditions and other information, to give early warning of grid risks, and to avoid unnecessary power outages. [0003] In recent years, with the advancement of distribution automation construction, more and more distribution terminals have been installed in the distribution network. The power distribution terminal can monitor the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00
CPCH02J13/00001H02J13/00028H02J13/00034Y02E60/00Y04S40/126
Inventor 陈千懿陈绍南李克文颜丽娟欧世锋俞小勇黄伟翔
Owner ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD