Hybrid algorithm for dynamic economic dispatch with valve-point effects

Author

Yan Chen ; Jinyu Wen ; Lin Jiang ; Shijie Cheng

Author_Institution

State Key Lab. of Adv. Electromagn. Eng. & Technol., Huazhong Univ. of Sci. & Technol., Wuhan, China

Volume

7

Issue

10

fYear

2013

fDate

Oct-13

Firstpage

1096

Lastpage

1104

Abstract

Dynamic economic dispatch problem in power system considering valve-point effects of generators is a non-smooth, non-convex and multi-dimensional constrained optimisation problem. In allusion to those characteristics, this study proposes a hybrid algorithm which integrates low-discrepancy sequences, improved shuffled frog leaping algorithm and sequential quadratic programming. The effectiveness of the proposed method has been verified by using case studies based on 5-unit, 10-unit and 30-unit test systems over a period of 24 h. The results show that the proposed method has improved solution quality and computation efficiency, compared with most current approaches.

Keywords

concave programming; power generation dispatch; power generation economics; quadratic programming; dynamic economic dispatch problem; generators; hybrid algorithm; improved shuffled frog leaping algorithm; low-discrepancy sequences; multidimensional constrained optimisation problem; nonconvex optimisation problem; nonsmooth optimisation problem; power system; sequential quadratic programming; test systems; time 24 h; valve-point effects;

fLanguage

English

Journal_Title

Generation, Transmission & Distribution, IET

Publisher

iet

ISSN

1751-8687

Type

jour

DOI

10.1049/iet-gtd.2012.0726

Filename

6614420