Introduction - If you have any usage issues, please Google them yourself
By analyzing the mathematical characteristics of the hard threshold function and investigating its denoising process to the power quality disturbance signal, it is known that the hard threshold function can be used to denoise the power quality disturbance signal.
The algorithm only removes and preserves the wavelet coefficients simply, and it is easy to remove the mutation points while suppressing the noise.
Finally, the disturbance location failure is not conducive to the analysis of the type of grid failure and the starting and ending time.