Retraction Notice: Application of FFT-based Fourier Algorithm in Microcomputer Relay Protection

As an important part of power system, mechanical relay protection aims to identify and isolate faults quickly and accurately, so as to ensure the stable operation of power system. With the development of technology, Fourier algorithm plays a more and more important role in microcomputer relay protection. This paper will discuss in detail the role and importance of Fourier algorithm in microcomputer relay protection.