Application of improved PSO to power transmission congestion management optimization model

来源期刊：中南大学学报(英文版)2008年第z2期

论文作者：李翔 刘预胜 杨淑霞

文章页码：347 - 351

Key words：congestion management； particle swarm optimization (PSO) algorithm； double fitness degree

Abstract: The parameters of particles were encoded firstly, then the constraint conditions and fitness degree were processed, and the calculation steps of the improved PSO algorithm were presented. Finally, the issues with the adoption of the improved PSO algorithm were solved and the results were analyzed. The results show that it is beneficial to obtaining the optimal solution by increasing the number of particles but that will also increase the operation time. On the aspects of solving continuous differentiable non-linear optimization model with equality and inequality constraints, the optimization result of PSO algorithm is the same as that of the interior point method. Compared with genetic algorithms (GA), PSO algorithm is more effective in the local optimization, and unlike GA, it will not be early maturity. Meanwhile, PSO algorithm is also more effective in the boundary optimization than genetic algorithm.