A NOVEL WEIGHT-IMPROVED PARTICLE SWARM OPTIMIZATION FOR COMBINED ECONOMIC AND EMISSION DISPATCH PROBLEMS

This paper presents a weight improved particle swarm optimization (WIPSO) strategy for solving the combined economic and emission dispatch (CEED) problems. From point of view of the safety of the environment, it has become necessary to reduce the emission of harmful pollutants from power plants. This leads to an increased operating cost of the plant. So a compromise has to be made between the emission and the cost. In this paper, the presented WIPSO strategy has been applied to two generating systems, one comprising a three generator system and the other being IEEE 30-bus six generator system and its performance has been compared to the standard particle swarm optimization (PSO) strategy. The results show that the WIPSO strategy provides better solution as compared to the PSO in terms of reduced fuel cost and reduced emission.