Research Article

Dynamic Economic Dispatch Using Hybrid DE-SQP for Generating Units with Valve-Point Effects

Table 3

Comparison of the results with other methods.

Optimization technique 5-unit system with losses 10-unit system without losses
Cost ( $ ) Total losses (MW) Cost ( $ )

Pattern search [23] 4 6 5 3 0 1 9 2 . 2 1
Particle swarm optimization [17] 4 7 8 5 2
Differential evolution [18] 4 5 8 0 0 1 9 4 . 3 5
Sequential quadratic programming [9] 1 0 5 1 1 6 3
Evolutionary programming [9] 1 0 4 8 6 3 8
Hybrid evolutionary programming and
Sequential quadratic programming [9] 1 0 3 1 7 4 6
Modified differential evolution [20] 1 0 3 1 6 1 2
Hybrid particle swarm optimization and
Sequential quadratic programming [30] 1 0 3 0 7 7 3
Proposed hybrid differential evolution and
Sequential quadratic programming 4 3 2 3 1 1 9 3 . 8 1 1 0 3 0 5 0 0