Comparative Assessment of SVC and TCSC Controllers on the Small Signal Stability Margin of a Power System Incorporating Intermittent Wind Power Generation

Table 2

Electromechanical modes for Case A (base case, i.e., no wind farm connected and no controllers).

Number	Mode	Type	Damping ratio ()	Frequency ()	Participation ()
	9 and 10					−0.249 ± 0.645	Area 1 local	0.360	1.523	SG3 and SG4
21 and 22	−0.009 ± 3.586	Interarea	0.0024	0.571	SG1, SG2, SG3, and SG4
27 and 28	−0.488 ± 6.932	Area 2 local	0.070	1.103	SG1 and SG2