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Table 3 Comparison of proposed SGWO with other techniques for fixed-dimension test functions

From: Application of a simplified Grey Wolf optimization technique for adaptive fuzzy PID controller design for frequency regulation of a distributed power generation system

F SCA PSO GSA GWO SGWO
Avg. Std. Dev Avg. Std. Dev Avg. Std. Dev Avg. Std. Dev Avg. Std. Dev
f14 2.5095 2.4449 3.6271 2.5608 5.8598 3.8313 4.042493 4.252799 2.0510 1.9064
f15 0.9457E-3 0.3779E-3 0.00057 0.00022 0.0036 0.0016 0.0031 0.000625 0.0017 0.0051
f16 −1.0316 0.0001 −1.03163 6.25E-16 −1.03163 4.88E-16 −1.03163 −1.03163 −1.0316 0.0
f17 0.4009 0.0031 0.397887 0 0.3978 0 0.397889 0.397887 0.3979 6.33E-5
f18 3.0001 0.0001 3.0 1.33E-15 3.0 4.17E-15 3.000028 3.0 3.0 1.89E-5
f19 −3.8539 0.0018 −3.8627 2.58E-15 −3.8627 2.29E-15 −3.8622 1.4E-5 −3.8609 3.17E-3