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Table 9 Comparison of fitness values and WRST results of the three-area system with physical constraints with SLD of 1% in area-1 using Different Optimization Techniques (Values in bold shows best value)

From: Design of a 2-DOF-PID controller using an improved sine–cosine algorithm for load frequency control of a three-area system with nonlinearities

 

ISCA

SCA

ALO

SSA

PSO

Mean ± Std. Dev of Fitness Value

2.76455 ± 0.030228369

3.303025 ± 0.175311

3.043113 ± 0.226013

2.9268 ± 0.339249

4.0440 ± 0.639504

Wilcoxon signed-rank test results