Algorithm 2 Grey Wolf Optimizer (GWO)

Adjust the grey wolf population $Y_i,i=\overline{1,n}$

Regulate a, A and C

Approximation, the fitness of correspondingly search agent (SA)

Yα = the optimized SA

Yβ = the supplementary superlative SA

Yδ = the 3rd superlative search agent

While t <max number of iterationdo

for each search agentdo

Arbitrarily initialize r1 and r2

Adjust the location of the existing SA by the (7)

Update a, A and C

Approximation the fitness of all SA

Adjust XαXβ and Xδ

t +  +

return Yα