A New Method of Data Fusion Calculation for Relay Protection Setting Calculation

Abstract

With the increasing scale of the power grid and the increasingly close connection between power grids, the traditional regional data modeling based protection setting calculation method is facing huge challenges. A quasi real-time boundary fusion technology is urgently needed to seamlessly splice the setting calculation data of each region to form an integrated power grid data model to solve the network wide, high-precision, multi-mode relay protection fault analysis and setting calculation requirements, build a strong "first line of defense" for the power grid. Aiming at the problems faced by the relay protection setting calculation of large interconnected power grids, this paper proposes an automatic data fusion algorithm for setting calculation based on multi-agent technology, which effectively solves the problems of too many zone fusion data and ineffective fusion due to data differences, and verifies the effectiveness of the algorithm through examples.