Solving Economic Dispatch Problem Intelligent Metaheuristic Technique
DOI:
https://doi.org/10.71202/paper47Abstract
This paper proposes solving the Economic Dispatch (ED) problem under practical power system constraints using seven well-known metaheuristic algorithms including Particle Swarm Optimization (PSO), Grey Wolf Optimizer (GWO), Moth-Flame Optimization (MFO), Multi-Verse Optimizer (MVO), Whale Optimization Algorithm (WOA), Sine Cosine Algorithm (SCA), and Differential Evolution (DE). Each algorithm is tested on a MATLAB-based ED framework that includes ramp-rate limits, prohibited operating zones, and transmission losses. A normalized representation of generator outputs in [0,1] ensures a fair comparison, and a penalty mechanism enforces the power balance constraint. Results show that all algorithms can feasibly handle the ED constraints, though their performance varies widely. Differential Evolution (DE) demonstrates consistently high solution quality, achieving a best final cost of 15702.12 and the lowest standard deviation (3.39) across multiple runs. Particle Swarm Optimization (PSO) and Grey Wolf Optimizer (GWO) also converge rapidly and attain near-optimal costs, albeit with slightly higher variability. By contrast, Multi-Verse Optimizer (MVO) exhibits more pronounced fluctuations in some runs. While MFO, WOA, and SCA find strong solutions in some instances, they suffer moderate-to-high cost dispersion, reflecting sensitivity to initialization and parameter choices.
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