Chaotic self-adaptive differential harmony search algorithm based dynamic economic dispatch

被引:77
作者
Arul, R. [1 ]
Ravi, G. [2 ]
Velusami, S. [1 ]
机构
[1] Annamalai Univ, Dept Elect Engn, Annamalainagar 608002, Tamil Nadu, India
[2] Pondicherry Engn Coll, Dept EEE, Pondicherry, India
关键词
Dynamic economic dispatch; Valve point effect; Prohibited operating zones; Ramp-rate limits; Differential harmony search algorithm; Chaotic differential harmony search algorithm; SWARM OPTIMIZATION ALGORITHM; HYBRID EP; EVOLUTION; UNITS; SQP;
D O I
10.1016/j.ijepes.2013.02.017
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Dynamic economic dispatch (DED) is one of the main optimization problems in electrical power system operation and control. DED problem is a non-smooth and non-convex problem when valve point effect, ramp-rate limits and prohibited operating zones of generation units are taken into account. This paper proposes an efficient chaotic self-adaptive differential harmony search (CSADHS) algorithm to solve the complicated DED problem in the presence of valve point effect, ramp-rate limits and prohibited operating zones constraints. In the proposed algorithm, chaotic self-adaptive differential mutation operator is used instead of pitch adjustment operator in the harmony search (HS) algorithm, to enhance the searching performance to find the quality solution. The effectiveness of the proposed algorithm is demonstrated on 10, 15 and 30 unit systems for a period of 24 h. The simulation results obtained by the proposed algorithm are compared with the results obtained, using differential harmony search (DHS) algorithm, chaotic differential harmony search (CDHS) algorithm, and also with the results of other methods available in the literature. In terms of solution quality, the proposed algorithm is found to be better than other algorithms and in terms of speed of convergence, standard deviation of generation cost, and computational time, the proposed algorithm is better than DHS and CDHS algorithm. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:85 / 96
页数:12
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