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

Table 5

Influence of controllers in the damping of the interarea mode (modes 21 and 22).

	Damping ratio ()		Frequency ()
	Mean	Std.	Mean	Std.
SVC only	0.0167	0.0011	0.6082	0.0038
TCSC only	0.0061	0.00069	0.6343	0.0010
SVC + PSS	0.1554	0.0021	0.6288	0.00098
TCSC + PSS	0.1032	0.0030	0.6270	0.0015