Damping of Low-Frequency Oscillations in a Power System, Based on Multiple-Model Optimal Control Strategy

Table 4

The performance index rotor angle under three-phase fault.

Control strategy	Peak (pu)	Valley (pu)	Rise time (s)	Settling time (s)
MMLOC	53.5	28	0.83	2
SMC	62	28	0.83	2
No control	62.6	14.6	0.96	>10