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Centralized protection, measurement and control device and realizing method thereof

A centralized protection, measurement and control device technology, applied in emergency protection circuit devices, circuit devices, electrical components, etc., can solve problems such as high operation and maintenance costs, heavy CT and PT loads, lack of coordination and function optimization, and reduce construction costs. Maintenance cost, effect of optimal control

Active Publication Date: 2010-09-22
NARI TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, repeated hardware configuration, heavy CT and PT loads, complex wiring, no sharing of information, lack of overall coordination and function optimization, high investment costs, and high operation and maintenance costs

Method used

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  • Centralized protection, measurement and control device and realizing method thereof
  • Centralized protection, measurement and control device and realizing method thereof

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings.

[0032] figure 1 It is the system structure diagram and the network diagram of the whole station of the centralized protection device. In the figure, P1-P3 represent PowerPC boards; D1-D6 represent Davinci CPU boards A and B are high-speed serial bus A and B networks.

[0033] The centralized protection measurement and control device of the present invention realizes all functions through plug-ins. Its main functional plug-ins include PowerPC board, CPU protection board, high-speed serial bus communication board, liquid crystal display board and power supply board. The PowerPC board adopts the MPC8247 series chip of Motorola Company, which can meet the requirements of sampling data acceptance. The PowerPC board is used to implement all communication-related functions, which are divided into two types in this device, one is the sampling data receiving board, which is ...

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Abstract

The invention discloses a centralized protection, measurement and control device which comprises the following functional plug-ins: a PowerPC board, a master control PowerPC board, a CPU board, a high-speed serial bus board and a liquid crystal display board, wherein the PowerPC board is arranged on the high-speed serial bus board by plug-in connection, comprises a sampling PowerPC board and receives a sampling packet from a merging unit or sent from the protection, measurement and control device through a sampling network on process level; the master control PowerPC board communicates with a background and a master controller through the network; the CPU board is arranged on the high-speed serial bus board by plug-in connection and used for realizing the data calculation and the protection function of all intervals; the high-speed serial bus board is an access board for all the plug-ins and used for data transmission among the plug-ins; and the liquid crystal display board is connected with the master control PowerPC board through a built-in network port. The device can reduce the complex wiring among all the intervals on the secondary side of a substation and reduce the work of design, manufacture and maintenance of secondary equipment of an automatic system of the substation.

Description

technical field [0001] The invention belongs to the technical field of electric power automation. A centralized protection measurement and control device suitable for medium and low voltage level digital substations is designed. Background technique [0002] At present, the secondary equipment of the substation mainly adopts a hierarchical distributed structure, which is oriented to the interval and has independent functions. Monitoring, control, protection, fault recording, measurement and metering are all single-function, independent devices. This mode divided by function and interval has high reliability, any device failure will not affect other functions and objects, and the system has good scalability and openness. However, repeated hardware configuration, heavy CT and PT loads, complex wiring, no information sharing, lack of overall coordination and function optimization, high investment costs, and high operation and maintenance costs. All of these provide favorable...

Claims

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Application Information

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IPC IPC(8): H02J13/00H02H7/045H02H7/06H02H7/22H02H7/26
CPCY02E60/725
Inventor 樊陈李惠宇仇新宏季学军高春雷姜玉磊韩伟蔡月明彭和平吴文瑕郭晓冬王军杨晓铭赵东坡
Owner NARI TECH CO LTD
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