Research on the Electromagnetic Compatibility of Microcomputer Protection

Abstract

This paper analyzed the main interference sources and their influences on the operation of protection both in the smart substation and the traditional substation. The interferences could be suppressed by reducing radiation of the interference sources, blocking the coupling channel of common-mode interference, promoting the anti-electromagnetic interference ability of the sensitive circuit and designing the bleeder circuit rationally. A microcomputer protection has passed the EMC test successfully by adopting these measures.

Analysis of Electromagnetic Pulse Effect Based on Short Orbit Random Coupling Model

“…Based on the random plane wave hypothesis and random matrix theory, Xing Zheng and Sameer Hemmady of the University of Maryland proposed the random coupling model [10,11,12]. The statistical method provides a new way of analyzing the electromagnetic effect physical quantity, which can provide reference for other systems with similar structures.…”