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Erschienen in:
2010 | OriginalPaper | Buchkapitel
A New Improved Particle Swarm Optimization Technique for Daily Economic Generation Scheduling of Cascaded Hydrothermal Systems
verfasst von : K. K. Mandal, B. Tudu, N. Chakraborty
Erschienen in: Swarm, Evolutionary, and Memetic Computing
Verlag: Springer Berlin Heidelberg
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Optimum scheduling of hydrothermal plants is an important task for economic operation of power systems. Many evolutionary techniques such as particle swarm optimization, differential evolution have been applied to solve these problems and found to perform in a better way in comparison with conventional optimization methods. But often these methods converge to a sub-optimal solution prematurely. This paper presents a new improved particle swarm optimization technique called self-organizing hierarchical particle swarm optimization technique with time-varying acceleration coefficients (SOHPSO_TVAC) for solving daily economic generation scheduling of hydrothermal systems to avoid premature convergence. The performance of the proposed method is demonstrated on a sample test system comprising of cascaded reservoirs. The results obtained by the proposed methods are compared with other methods. The results show that the proposed technique is capable of producing comparable results.