Improved Firefly Algorithm: A Novel Method for Optimal Operation of Thermal Generating Units

Algorithm 1

The pseudo code of the proposed IFA method.

Set control parameters to values

Randomly initialize population

Calculate fitness of the whole population

Determine the best solution and the worst solution

Set ;

While

Set ;

Calculate , and

For

  For

    If

    Determine and

      If

      Else

      End

    Determine

    Determine attractiveness β and new solution

    Calculate fitness function of

    End    % if

  End      % for

Compare each old solution and each new solution to keep better one.

Compare these fitness function to choose the best fitness function

Set with the lowest fitness to

End        % for

Determine the best solution and the worst solution

End        % while