Compressed-DMD for Electromechanical Mode Estimation from High-Dimensional Ambient Data

Table 5

Identified results of electromechanical oscillation parameters.

Mode	Method	Frequency/Hz		Damping ratio/%
		Mean	Var	Mean	Var
1	SSSA	0.0372		10.35
	Compressed-DMD	0.3711		11.78	0.0613
	DMD	0.3722	0.0009	13.58	0.1673
	SSI	0.4710	0.0007	19.01	2.3904
2	SSSA	0.5047		7.25
	Compressed-DMD	0.5031		7.3194	0.0772
	DMD	0.5042		6.1796	0.0225
	SSI	0.5543		4.29	0.2401
3	SSSA	0.5549		2.80
	Compressed-DMD	0.5592		3.14	0.0299
	DMD	0.5513	0.0013	2.38	0.0821
	SSI	0.5801		3.64	0.2209
4	SSSA	0.7491		6.99
	Compressed-DMD	0.7473		7.80	0.1098
	DMD	0.7494	0.0154	6.05	0.1024
	SSI	0.6304	0.1187	7.45	0.7921