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Energies 2018, 11(1), 188; https://doi.org/10.3390/en11010188

A Novel Algorithm for Optimal Operation of Hydrothermal Power Systems under Considering the Constraints in Transmission Networks

1
Power System Optimization Research Group, Faculty of Electrical and Electronics Engineering, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
2
Faculty of Electrical and Electronics Engineering, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
3
Department of Electrical Engineering, Lac Hong University, Bien Hoa 810000, Vietnam
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Department of Electrical Engineering, The University of Da Nang—University of Science and Technology, Danang 550000, Vietnam
5
Institute of Research and Development, Duy Tan University, Danang 550000, Vietnam
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Office of Science Research and Development, Lac Hong University, Bien Hoa 810000, Vietnam
*
Author to whom correspondence should be addressed.
Received: 29 November 2017 / Revised: 2 January 2018 / Accepted: 8 January 2018 / Published: 12 January 2018
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Abstract

This paper proposes an effective novel cuckoo search algorithm (ENCSA) in order to enhance the operation capacity of hydrothermal power systems, considering the constraints in the transmission network, and especially to overcome optimal power flow (OPF) problems. This proposed algorithm is developed on the basis of the conventional cuckoo search algorithm (CSA) by two modified techniques: the first is the self-adaptive technique for generating the second new solutions via discovery of alien eggs, and the second is the high-quality solutions based on a selection technique to keep the best solutions among all new and old solutions. These techniques are able to expand the search zone to overcome the local optimum trap and are able to improve the optimal solution quality and convergence speed as well. Therefore, the proposed method has significant impacts on the searching performances. The efficacy of the proposed method is investigated and verified using IEEE 30 and 118 buses systems via numerical simulation. The obtained results are compared with the conventional cuckoo search algorithm (CCSA) and the modified cuckoo search algorithm (MCSA). As a result, the proposed method can overcome the OPF of hydrothermal power systems better than the conventional ones in terms of the optimal solution quality, convergence speed, and high success rate. View Full-Text
Keywords: cuckoo search algorithm (CSA); constraints in a transmission network; hydrothermal power systems; optimal power flow cuckoo search algorithm (CSA); constraints in a transmission network; hydrothermal power systems; optimal power flow
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Nguyen, T.T.; Dinh, B.H.; Quynh, N.V.; Duong, M.Q.; Dai, L.V. A Novel Algorithm for Optimal Operation of Hydrothermal Power Systems under Considering the Constraints in Transmission Networks. Energies 2018, 11, 188.

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