High-speed Digital Design Technology Applied Research In Computer Protection Equipment

The rapid development of power system raises new demands to relay protection. And the fast development of electronic technology, computer technology and communication technology injects new vitality to the development of relay protection technology. As a new way of relay protection, computer protection now strides from SCM era to embedded era. The application of embedded system in the computer protection equipment makes great changes to relay protection. It makes network, intelligence, the integration of protection, control, measurement and data communications come true.The application of embedded technology brings vitality to relay protection. It also brings new challenges to the hardware design of computer protection equipment. The method of traditional low-speed digital design (below 50MHz frequency digital design) is no longer applicable in the field of high-speed digital design (above 50MHz), which even cannot be realized. While high-speed digital design techniques provide support for high-speed embedded systems hardware design. The core of high-speed digital design techniques is to solve the signal integrity problems and electromagnetic compatibility problems in the digital circuit design by means of analog design.This paper collects, collates and analyzes the current status of computer protection. It analyzes the principle and components of computer protection equipment. Furthermore, it expounds embedded technology and its application in the hardware design of computer protection equipment. It points out the existing problems and future problems of the hardware design of computer protection equipment. This paper also collects and analyzes the research results of current high-speed digital design. It makes a thorough analysis on the three problems of high-speed digital design: timing, signal integrity and electromagnetic compatibility. Signal integrity simulation and analysis technology is the most effective way for the high-speed digital design. Concerning timing problems and electromagnetic compatibility problems, this paper proposes some effective solutions. The purpose of this paper is to apply high-speed digital design techniques to the embedded system design of computer protection equipment. This paper will combine examples for further proof.