TY - JOUR T1 - A Particle Swarm Optimization with Random Particles and Fine-Tuning Mechanism for Nonconvex Economic Dispatch AU - Yen, Chin-Wei AU - Tsai, Ming-Tang JO - International Journal of Electrical and Power Engineering VL - 5 IS - 1 SP - 35 EP - 41 PY - 2011 DA - 2001/08/19 SN - 1990-7958 DO - ijepe.2011.35.41 UR - https://makhillpublications.co/view-article.php?doi=ijepe.2011.35.41 KW - CF KW -Taiwan KW -particle swarm optimization KW -fine-tuning mechanism KW -Economic dispatch KW -valve-point effect AB - This study presents a new approach to the economic dispatch problems with valve-point effects. The practical economic dispatch problem has a nonconvex cost function with equality and inequality constraints that it is difficult to find the optimal solutions using any mathematical approaches. A Particle Swarm Optimization (PSO) with Random Particles and Fine-tuning mechanism (PSO-RPFT) is proposed to solve economic dispatch problem. The proposed developed in such a way that PSO with Constriction Factor (PSO-CF) is applied as a based level search which can give a good direction to the optimal global region. Random particles and fine-tuning mechanism is used as a fine tuning to determine the optimal solutions at the final. Effectiveness of the proposed method is demonstrated on 3 example systems and compared to that of SA, GA, EP. Results show that the proposed method is more effective in solving economic dispatch problem. ER -