继电保护专用芯片集成差动保护技术的研究

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Abstract Aiming at the problem that the core chips of domestic relay protection devices currently rely on foreign imports, State Grid Corporation of China has proposed the concept of special chips for relay protection. In this paper, an integrated differential protection technology for a special chip for relay protection is studied. The field-programmable gate array-based hardware platform covers all the differential protection links: local-side current Analog-digital sampling, current fast fourier trans- formation, opposite-side current synchronization interface, and differential protection logic. As long as the special chip for relay protection is equipped with corresponding peripheral devices, the differential protection function can be realized without relying on the application software platform, reducing the difficulty of developing relay protection application programs, and having the advantages of high reliability and easy maintenance.

Key words： dedicated chips differential protection field-programmable gate array (FPGA)

Received: 07 April 2020

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	Articles by authors
	Zhao Qingchun
	Lu Jinfeng
	Li Zhicheng
	Tang Zhijun
	Lin Guodong

Cite this article:

Zhao Qingchun,Lu Jinfeng,Li Zhicheng等. Research on integrated differential protection technology for relay protection dedicated chips[J]. Electrical Engineering, 2020, 21(10): 133-136.

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http://dqjs.cesmedia.cn/EN/Y2020/V21/I10/133

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