An Optimal Economic Dispatch Algorithm for Large Scale Power Systems with Cogeneration Units

Chao Lung Chiang
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Chao Lung Chiang: Nan Kai University of Technology

European Journal of Engineering and Technology Research, 2018, vol. 1, issue 5, 10-16

Abstract: This paper proposes an optimal economic dispatch algorithm for large scale power systems with cogeneration units. A hybrid differential evolution with multiplier updating (HDE-MU) is introduced to solve the combined heat and power economic dispatch (CHPED) problems. The hybrid differential evolution (HDE) has the ability to efficiently search and actively explore solutions. Multiplier updating (MU) is introduced to avoid deforming the augmented Lagrange function (ALF), which is adopted to manage system constraints of the CHPED problem. The proposed HDE-MU integrates the HDE with the MU. A practical CHPED system with two cases of a basic case and a large case is employed to demonstrate that the proposed algorithm has the better performance in comparison with the previous methods, and the proposed HDE-MUhas the effectiveness when applied to the large scale CHPED operation of power systems.

Keywords: Cogeneration; differential evolution; economic dispatch; multiplier updating; large scale. (search for similar items in EconPapers)
Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:epw:ejeng0:v:1:y:2018:i:5:id:60173

DOI: 10.24018/ejeng.2016.1.5.173

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