Technical Development and Analysis on Modern Microprocessor-based Protection

This paper analyzes the development tendency of computer technology and modern microprocessor-based protection, describes the new requirements for microprocessor-based protection according to power system development, and presents the design concept of networking hardware platform and hierarchy software platform. The key problems for network application are studied deeply and the high reliability of network application has confirmed through plenty of test. New opinion and the way of realizing for the network communication function of microprocessor-based protection in substation automation, new characteristics of intelligent condition monitoring, as well as full automatic test are put forward in the paper. Finally, the new principle and new algorithm of microprocessorbased protection and its development are briefly introduced.