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Table 8 Comparision of performance measures between the proposed and existing methods at P = 1.2 p.u. and Q = 0.2p.u. P = 1.2p. uandQ = 0.2p. u

From: Design of a robust PID-PSS for an uncertain power system with simplified stability conditions

Time domain specifications/Performance Indices Kharitonov Poly Root Locus [36] Kharitonov Poly PSO [37] Image set Lead-Lag [41] Image set PID-PSS [41] Proposed PID-PSS
Rise Time 0.0024 2.7269e-5 8.5554e-5 0.0032 1.4115e-4
Settling Time 3.320 3.141 2.374 2.184 1.895
Peak value 8.6473e-4 8.5661e-4 9.4161e-4 9.3236e-4 4.7783e-4
Peak time 0.6300 0.6300 0.6500 0.6700 0.5800
ISE 1.5223e-7 1.4698e-7 1.5204e-7 2.0622e-7 0.4934e-7
IAE 4.0349e-4 3.7200e-4 2.8842e-4 3.6083e-4 2.3155e-4
ITSE 1.2249e-7 1.1866e-7 1.0651e-7 1.4880e-7 0.4002e-7
ITAE 5.1076e-4 4.5924e-4 2.5746e-4 3.3132e-4 2.4989e-4