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Table 4 Peak deviation and settling time for effectiveness measurement of FACTS devices

From: Grasshopper optimization algorithm optimized multistage controller for automatic generation control of a power system with FACTS devices

Element Peak Overshoot (+) Peak Undershoot (−) Settling Time in seconds
SSSC TCPS TCSC IPFC SSSC TCPS TCSC IPFC SSSC TCPS TCSC IPFC
f1 (Hz) 0.003381 0.001650 0.001122 0.000740 0.018378 0.009548 0.006447 0.007415 45.70 41.39 39.48 34.22
f2 (Hz) 0.003345 0.001582 0.001114 0.000735 0.018384 0.009535 0.006459 0.007567 45.83 43.09 38.78 37.07
f3 (Hz) 0.003297 0.001656 0.001104 0.000551 0.018382 0.009555 0.006431 0.006845 44.70 43.32 40.28 38.12
Ptie1–2(pu) 0.001965 0.001788 0.001699 0.001674 0.011174 0.010781 0.009131 0.008423 46.58 43.38 41.91 42.68
Ptie2–3(pu) 0.001898 0.001670 0.001623 0.001458 0.011426 0.010368 0.010293 0.010127 44.88 42.62 41.31 37.84
Ptie3–1(pu) 0.001758 0.001689 0.001661 0.001467 0.011223 0.010846 0.010547 0.010113 47.22 44.36 41.76 40.96