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Digital transformer station secondary system

A technology for secondary systems and substations, applied in information technology support systems, electrical components, circuit devices, etc., can solve problems such as complex network structure, large equipment investment, and difficult maintenance, and achieve simplified network configuration, investment savings, and system network simplified effect

Active Publication Date: 2009-12-23
STATE GRID TIANJIN ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above system, an intelligent control unit is connected to the primary equipment on site, and is responsible for collecting the information of the primary equipment and executing the control orders of the protection device and the measurement and control device. The information collected by the intelligent control unit is sent to the measurement and control device and protection through the process layer network. device, the measurement and control device forwards the information to the background control system and telecontrol workstation in the station control layer through the station control layer network. The structure is complex and many equipments are used, resulting in large equipment investment and difficult maintenance.

Method used

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  • Digital transformer station secondary system
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Embodiment Construction

[0015] Embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0016] A digital substation secondary system, such as figure 1 As shown, it is composed of background monitoring workstation, telecontrol workstation, protection device, local measurement and control device, switchgear and electronic transformer. The background monitoring workstation, telecontrol workstation, protection device and local measurement and control device are all connected through optical fiber interface Connected to the total station network, the on-site measurement and control device is also connected to the data of the electronic transformer through another optical fiber interface, and connected to the external binary input data through the I / O interface.

[0017] The on-site measurement and control device described in the above system is composed of a microprocessor, a programmable logic unit, an optical fiber Ethernet module, a...

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PUM

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Abstract

The invention relates to a digital transformer station secondary system which comprises a background monitor workstation, a remote workstation, a protecting device, a measure and control device, a switch device and an electronic mutual inductor. The system has the main technical characteristics that the background monitor workstation, the remote workstation, the protecting device and the measure and control device are connected onto all-station network by an optical fiber interface; the measure and control device is a local measure and control device which is connected with data of the electronic mutual inductor through another optical fiber interface and connected with outside input data by an I / O interface. The system combines station control layer network and process layer network into the all-station network, so as to lead the network of the system to be better simplified, be convenient for the network configuration of a digital transformer station, save the investment of a digital transformer station secondary device, reduce the maintenance of the digital transformer station, and improve the working efficiency.

Description

technical field [0001] The invention belongs to the field of digital substations, in particular to a secondary system of a digital substation. Background technique [0002] At present, the digital substation, which is mainly characterized by intelligent primary equipment, networked secondary equipment, and standardized communication platform, represents the future development direction of substations. The intelligence of the primary equipment is reflected in the electronic transformer and intelligent switch with digital output; the network of the secondary equipment is reflected in the communication between the upper and lower connections of the secondary equipment through the network; the standardization of the communication platform is reflected in the IEC61850 standard. [0003] The digital substation secondary system is an important part of the digital substation automation control system. The existing digital substation secondary system usually consists of a two-layer ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00
CPCY04S40/124Y02E60/723Y04S10/16Y02E60/7838Y02E60/00
Inventor 程法庆宋国旺杨钢陈建李广存徐科王少伟
Owner STATE GRID TIANJIN ELECTRIC POWER
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