Quantitative Representation of Disturbance Waveform for Microgrid Connected PCC Voltages Using Improved Atomic Decomposition

Table 3

Evaluation indicators for combined sag and interruption signal with 20 and 30 dB noises.

Methods	SNR
IAD	Pure signal	1/29.7	0.0013	0.993
	30 dB	1/29.7	0.0015	0.990
	20 dB	1/29.7	0.0016	0.974
WT	Pure signal	1/13.4	0.0069	0.968
	30 dB	1/12.6	0.0087	0.956
	20 dB	1/12.2	0.0098	0.943