Multiobjective optimal load flow based on ideal distance minimization in 3D space

In this paper, three objectives of Multiobjective Optimal Load Flow (MOLF) problem - cost of generation, system transmission loss and pollution - are considered. The MOLF problem is formulated as a multiobjective optimization problem using weighting method and a number of noninferior solutions are g enerated in 3D space. The optimal power system operation is attained by Ide al Distance Minimization method. This method employs the concept of an 'Ide al Point' (IP) to wscalarize the problems having multiple objectives and it minimizes the Euclidean distance between IP and the set of noninferior sol utions. This method has been applied to three IEEE standard systems. (C) 20 01 Elsevier Science Ltd. All rights reserved.