The Implementation Scheme of Distance Protection Based on Parameter Identification

With the development of the power grid scale and the complex power grid structure in our country, as a basic component of the line protection, the distance protection working performance has play a vital role in the safe and stable operation of the power system. Considering the characteristics of distance protection which demands the setting point accurately, fault location and only need to timely removal of the fault in the area. The ability of the existing distance protection resistances to the transition resistance is not high, to solve this problems, some scholars put forward the principle of distance protection based on parameter identification, it has greatly increased the ability of distance protection resistances to the transition resistance, but it has not yet been fully implemented in the practical production, This article mainly focuses on the implementation scheme of the distance protection based on parameter identification, and the hardware design and software design are discussed. The implementation of the distance protection based on parameter identification has an important significance in the future.