Adaptive Rat Swarm Optimization for Optimum Tuning of SVC and PSS in a Power System

Algorithm 2

Adaptive rat swarm optimization.

	Define algorithm parameters: N,
	For i = 1 to N//generate initial population
	Initialize the rats’ position, , using equation (7)
	Evaluate opposite of rats’ position, , based on equation (13)
	If
	Replace with
	End if
	End for//algorithm process
	Initialize parameters A, C, and R
	Calculate the fitness value of each search agent
	←best search agent
	While x < //rats’ movement
	For i = 1 to N
	Update parameters A and C by equations (10) and (11)
	Update the positions of search agents using equation (8)
	Calculate the fitness value of each search agent
	If the search agent goes beyond the boundary limits adjust it
	End for
	Change the worst agent with a new one using equation (14)
	Update best agent
	t = t + 1
	End while