Solving the Combined Heat and Power Economic Dispatch Problem in Different Scale Systems Using the Imperialist Competitive Harris Hawks Optimization Algorithm

被引:2
作者
Nazari, Amir [1 ]
Abdi, Hamdi [1 ]
机构
[1] Razi Univ, Engn Fac, Elect Engn Dept, Kermanshah 6714414971, Iran
关键词
combined heat and power units; large-scale power system; optimization; imperialist competitive Harris hawks optimization; meta-heuristic algorithm; PARTICLE SWARM OPTIMIZATION; GROUP SEARCH OPTIMIZATION; GENETIC ALGORITHM; MULTIOBJECTIVE OPTIMIZATION; PENALTY-FUNCTION; CUCKOO SEARCH;
D O I
10.3390/biomimetics8080587
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The aim of electrical load dispatch (ELD) is to achieve the optimal planning of different power plants to supply the required power at the minimum operation cost. Using the combined heat and power (CHP) units in modern power systems, increases energy efficiency and, produce less environmental pollution than conventional units, by producing electricity and heat, simultaneously. Consequently, the ELD problem in the presence of CHP units becomes a very non-linear and non-convex complex problem called the combined heat and power economic dispatch (CHPED), which supplies both electric and thermal loads at the minimum operational cost. In this work, at first, a brief review of optimization algorithms, in different categories of classical, or conventional, stochastic search-based, and hybrid optimization techniques for solving the CHPED problem is presented. Then the CHPED problem in large-scale power systems is investigated by applying the imperialist competitive Harris hawks optimization (ICHHO), as the combination of imperialist competitive algorithm (ICA), and Harris hawks optimizer (HHO), for the first time, to overcome the shortcomings of using the ICA and HHO in the exploitation, and exploration phases, respectively, to solve this complex optimization problem. The effectiveness of the combined algorithm on four standard case studies, including 24 units as a medium-scale, 48, 84, units as the large-scale, and 96-unit as a very large-scale heat and power system, is detailed. The obtained results are compared to those of different algorithms to demonstrate the performance of the ICHHO algorithm in terms of better solution quality and lower fuel cost. The simulation studies verify that the proposed algorithm decreases the minimum operation costs by at least 0.1870%, 0.342%, 0.05224%, and 0.07875% compared to the best results in the literature.
引用
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页数:29
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