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Intelligent relay protector of network

A relay protection device, an intelligent technology, applied in circuit devices, electrical components, etc., can solve the problems of low communication capability, insufficient core processing capability of relay protection equipment, and poor scalability of system software and hardware, and achieve data processing. powerful effect

Inactive Publication Date: 2011-11-16
北京亿旗创新科技发展有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the face of new requirements, the current relay protection system has exposed problems such as insufficient core processing capabilities of relay protection equipment and poor scalability of system software and hardware, resulting in complex structure of relay protection equipment, redundancy, and low protection and measurement accuracy. , low communication ability and other defects and deficiencies

Method used

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Examples

Experimental program
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Embodiment Construction

[0018] Referring to Figure 1, the ADSP BF518 network intelligent relay protection device consists of ADSP BF518 module 1 (using the American Analog Device Inc. ADSP BF518 chip), AC signal acquisition module 2, open input and output module 3, FPGA module (using the United States XILINX's XC3S100E), storage module 5, communication module 7, keyboard module 8 (sample ADP5588 produced by ADI), LCD module 9 (using ZX240128A of Beijing Zhongxian Electronics Co., Ltd.), power failure detection, watchdog and reset Module (sample ADM706S produced by ADI), power module 11 (using Guangzhou Mingwei Electronic Products Co., Ltd. D-50BGD 2-way isolated power supply) and other components.

[0019] The AC signal acquisition module 2 includes an AC signal conversion unit (sampling of the TR0102-2B, TR0102-2C current converter and TR1102-2C voltage converter of Hubei Tianrui Electronics Co., Ltd.), a signal conditioning unit (sampling two-stage RC low-pass Filtering, single-ended signals are conne...

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PUM

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Abstract

The invention provides an intelligent relay protector of a network based on ADSP-BF518, which is mainly used for solving the defects that an existing relay protector is complicated and redundant in structure, low in protection and measurement accuracy, poor in network communication capacity and lag in inter-network synchronization technology. The protector takes an ADSP-BF518 module as a center and comprises a power supply module, an AC (alternating current) signal acquisition module, an inlet and outlet module, an FPGA (field programmable gate array) module, a storage module, a communication module [for supporting industrial Ethernet, RS232, RS485 and CAN (controller area network)], an LCM (liquid crystal display module), a keyboard and the like, wherein an ADC (analog to digital converter) AD7606 which is produced newly by the ADI (analog devices Inc) is suitable for monitoring power lines and supports 8-channel 16-bit high-speed synchronous sampling. The protector also supports an IEEE (institute of electrical and electronic engineers) 1588 precision network time protocol and is suitable for relay protection and monitoring of a power transmission line with a voltage being less than or equal to 110kV.

Description

Technical field [0001] The invention relates to the technical field of relay protection for digital power systems. With the application background of microcomputer relay protection for medium and low voltage distribution lines, it embodies ADSP by realizing various functions such as protection and measurement control, communication and display of medium and low voltage distribution lines. The BF518 processor provides a guarantee for the real realization of highly intelligent and standardized microcomputer relay protection devices integrating protection, measurement, control, telecontrol, and communication. It also enhances the high performance and low performance of the microcomputer relay protection equipment. The advantages of cost and low power consumption are suitable for relay protection and monitoring of transmission and transformation lines not higher than 110kV. Background technique [0002] The State Grid of China has been working hard to build a unified strong smart gri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00
Inventor 吴勇余亚平任军
Owner 北京亿旗创新科技发展有限公司
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