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Table 5 Comparision of performance measures between the proposed and existing methods at P = 1 p.u. and Q = -0.4p.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

0.0013

0.0044

3.4553e-4

0.0060

1.5920e-4

Settling Time

5.123

5.591

2.894

2.981

2.459

Peak value

8.4693e-4

8.5472e-4

9.4378e-4

9.3149e-4

4.4416e-4

Peak time

0.6300

0.6300

0.6400

0.6700

0.5800

ISE

1.7344e-7

1.6359e-7

1.5757e-7

2.4247e-7

0.4147e-7

IAE

5.2443e-4

4.5540e-4

3.1390e-4

4.7086e-4

2.2977e-4

ITSE

1.6253e-7

1.4751e-7

1.1311e-7

1.8707e-7

0.3529e-7

ITAE

8.8001e-4

6.9924e-4

3.2520e-4

5.4516e-4

2.7949e-4