An integrated device for protection, measurement and control

Abstract

The invention relates to a protection, measurement and control integrated device in a voltage grade of 110 kV or over. The device comprises a high-speed serial bus back plate (1), a protection, protection starting, measurement and control central processing unit (CPU) plug-in unit (2), an input / output (I / O) plug-in unit (3), a management plug-in unit (4), a communication plug-in unit (5) and a power plug-in unit (6), wherein the CPU plug-in unit (2) is used for accomplishing computation of protection, measurement and control logic functions of the device; the I / O plug-in unit (3) serves as an IO data interface of the device; the management plug-in unit (4) is used for realizing human-computer interface and station-level data communication; the communication plug-in unit (5) is used for network communication processing; the power plug-in unit (6) supplies power to the device; and the CPU plug-in unit (2), the I / O plug-in unit (3), the management plug-in unit (4), the communication plug-in unit (5) and the power plug-in unit (6) are respectively plugged into the high-speed serial bus back plate (1). The device supports data sampling of a process layer, supports tripping and locking of a generic object oriented substation event (GOOSE), is a line, bus connection / sectioning and circuit breaker protection, measurement and control integrated device in the voltage grade of 110 kV or over and can be applied to an intelligent transformer station.

Description

technical field [0001] The invention relates to the technical field of substation relay protection and automatic measurement and control, in particular to an integrated device for protection, measurement and control of 110kV and above voltage levels. Background technique [0002] In the traditional substation relay protection, for the sake of operational safety, the protection and measurement and control functions of 110kV and above voltage levels are completed by independent devices, and the protection devices of 35kV and below voltage levels integrate measurement and control functions. The protection function uses the same CPU to complete the logic operation. With the development of smart substation technology and the improvement of the integration of secondary equipment, there is an urgent need for integrated protection, measurement and control devices that can meet the technical requirements of 110kV and above voltage levels. [0003] The current high-voltage level prot...

AI Technical Summary

Problems solved by technology

With the increase of device diversity, if each device research and development goes through all the above-mentioned links, it will inevitably cause problems such as long development cycle, difficult quality control, and large influence of human factors.

However, the protection, measurement and control integrated device modified from the ordinary microcomputer protection device or measurement and control device has the problem that protection and measurement and control cannot be independent of each other.

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