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On-line standby method for transformer substation secondary equipment controlled by soft pressing plate

A technology of secondary equipment and soft pressure plate, applied in the direction of electrical components, circuit devices, etc., can solve the problems of lack of research on secondary equipment online backup methods, insufficient use of smart substations, etc., to achieve controllability and operability, The effect of improving self-healing ability and reducing the number of configurations

Active Publication Date: 2015-06-10
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the research on the secondary equipment of smart substations is mostly focused on its functional integration, communication network expansion, and advanced application implementation, and less attention is paid to the secondary equipment fault diagnosis, failure judgment, and isolation and maintenance of failed equipment. There is a lack of research on the online standby mode of secondary equipment, and the advantages brought by information sharing of secondary equipment in smart substations have not been fully utilized

Method used

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  • On-line standby method for transformer substation secondary equipment controlled by soft pressing plate
  • On-line standby method for transformer substation secondary equipment controlled by soft pressing plate
  • On-line standby method for transformer substation secondary equipment controlled by soft pressing plate

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Experimental program
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Effect test

Embodiment 1

[0044] Taking backup of two secondary devices as an example to illustrate the online backup method of secondary devices, the secondary device in normal operation is hereinafter referred to as "main device", and the standby secondary device is hereinafter referred to as "standby device".

[0045] The backup equipment sets the number of soft pressure plates according to the number of backup functions. In the case of two standby devices, set three soft platen positions, which are respectively "standby platform platen", "main equipment 1 platen" and "main equipment 2 platen".

[0046] When the main equipment is in normal operation, the "standby platform pressure plate" in the standby equipment is put into operation, and the other two pressure plates are withdrawn. The standby equipment is running on the status of the monitoring platform. Switching status of each platen.

[0047] When an abnormal alarm that affects the protection action occurs on the main device, the backup functi...

Embodiment

[0077] In order to realize the present invention, a 110kV transformer protection measurement and control device is taken as an example to verify the realization method described in the present invention. In the 110kV substation, a set of 110kV transformer main-backup integrated protection measurement and control device based on direct mining and direct jumping is configured to realize the transformer protection measurement and control function. When the two sets of equipment are running, they are connected to the management module of the station control layer, and the standby equipment and the main equipment exchange equipment running status information through the process layer network switch at the same time. Its system configuration is as follows image 3 shown.

[0078] The main equipment includes segmental intelligent unit, 110kV inner bridge intelligent unit, 110kV line intelligent unit, transformer intelligent unit and low-voltage side intelligent unit, and the backup ...

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Abstract

The invention relates to an on-line standby method for transformer substation secondary equipment controlled by a soft pressing plate. The on-line standby method comprises the following steps that the standby equipment receives a soft pressing plate switching command sent by a station level management module and stores soft pressing plate states; a soft pressing plate state file stored in the standby equipment is read, and the soft pressing plate states are read from the soft pressing plate state file to a pressing plate buffer zone; the soft pressing plate states stored in the standby equipment are synchronized, and whether the synchronization result is correct or not is judged; a main equipment N pressing plate and standby platform pressing plate state file after the synchronization is stored; whether the storage of the main equipment N pressing plate and standby platform pressing plate state is finished is judged; whether the standby equipment needs to switch a running state is judged; if the standby equipment needs to switch the running state, a standby equipment running state marking position is arranged, and a switching process is started; otherwise, the next step is conducted; the control process is ended. According to the on-line standby method for the transformer substation secondary equipment controlled by the soft pressing plate, on the premise that interlayer equipment is arranged to be in standby application, the number of the standby equipment is reduced, flexible switch and control of the standby function are realized, and the on-line standby method has controllability and operability.

Description

technical field [0001] The invention relates to the field of power system automation, in particular to a method for manufacturing power system automation equipment / products, in particular to an online backup method and device for substation secondary equipment controlled by a soft pressure plate. Background technique [0002] Most of the equipment in the bay layer of the smart substation adopts the communication method to realize the information interaction and the release of the control command, and the realization of the communication link all follows the IEC61850 standard. Due to the change of the implementation mode of the input and output links, the development of the intelligent substation bay layer equipment can adopt the method of adding application function software to the general bay layer platform. Therefore, switching of application functions for different intervals can be realized through software operations. At present, the research on the secondary equipment ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J13/00
Inventor 王冬青王芝茗曹楠葛维春李刚王臣刚李冰黄旭鹿洪刚张延鹏侯鹏于同伟刘润花万博苏瑞申仲涛陈翔宇
Owner STATE GRID CORP OF CHINA
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