Load optimization of cogeneration units based on intuitive multi-objective fish swarm algorithm

This study addresses the multi-objective optimization challenges in seasonal heat-power load distribution for cogeneration units by proposing a multi-objective artificial fish swarm algorithm based on intuitionistic fuzzy entropy (IFEMOAFSA). The algorithm enhances the original intuitionistic fuzzy...

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Main Authors: Xueqiang Shen, Jiaxin Wang
Format: Article
Language:English
Published: Elsevier 2025-06-01
Series:International Journal of Electrical Power & Energy Systems
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Online Access:http://www.sciencedirect.com/science/article/pii/S0142061525001462
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author Xueqiang Shen
Jiaxin Wang
author_facet Xueqiang Shen
Jiaxin Wang
author_sort Xueqiang Shen
collection DOAJ
description This study addresses the multi-objective optimization challenges in seasonal heat-power load distribution for cogeneration units by proposing a multi-objective artificial fish swarm algorithm based on intuitionistic fuzzy entropy (IFEMOAFSA). The algorithm enhances the original intuitionistic fuzzy entropy framework, integrating membership, non-membership, and hesitation degrees to guide fish swarm behavior. It dynamically categorizes swarm particles into three states, improving solution space coverage and priority-based solution identification. Convergence direction is adaptively adjusted using intuitionistic fuzzy entropy, with Pareto frontier solutions determining optimal load allocation. Evaluated via the Zitzler-Deb-Thiele (ZDT) benchmark functions, IFEMOAFSA achieves a 42.63% comprehensive performance improvement over four benchmark algorithms, verified by Mean Inverted Generational Distance (MIGD) and Mean Hypervolume Metric (MHV). A cogeneration unit model incorporating operational characteristics and historical data demonstrates the method’s efficacy: multi-objective balance is maintained across iterations, achieving a 1.41% thermoelectric load increase and 1.54% optimal coal consumption reduction. The algorithm reduces heat/electricity losses and operational costs under diverse conditions while enhancing load utilization rates. These results validate IFEMOAFSA’s effectiveness in solving annual load optimization challenges for cogeneration systems, showing promising applications for similar multi-objective optimization problems requiring dynamic adaptability and robust convergence properties.
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spelling doaj-art-0e73223d194c41bd8a69214a6705d4fc2025-08-20T03:03:37ZengElsevierInternational Journal of Electrical Power & Energy Systems0142-06152025-06-0116711059510.1016/j.ijepes.2025.110595Load optimization of cogeneration units based on intuitive multi-objective fish swarm algorithmXueqiang Shen0Jiaxin Wang1School of Automation Engineering, Northeast Electric Power University, Jilin 132012, ChinaCorresponding author.; School of Automation Engineering, Northeast Electric Power University, Jilin 132012, ChinaThis study addresses the multi-objective optimization challenges in seasonal heat-power load distribution for cogeneration units by proposing a multi-objective artificial fish swarm algorithm based on intuitionistic fuzzy entropy (IFEMOAFSA). The algorithm enhances the original intuitionistic fuzzy entropy framework, integrating membership, non-membership, and hesitation degrees to guide fish swarm behavior. It dynamically categorizes swarm particles into three states, improving solution space coverage and priority-based solution identification. Convergence direction is adaptively adjusted using intuitionistic fuzzy entropy, with Pareto frontier solutions determining optimal load allocation. Evaluated via the Zitzler-Deb-Thiele (ZDT) benchmark functions, IFEMOAFSA achieves a 42.63% comprehensive performance improvement over four benchmark algorithms, verified by Mean Inverted Generational Distance (MIGD) and Mean Hypervolume Metric (MHV). A cogeneration unit model incorporating operational characteristics and historical data demonstrates the method’s efficacy: multi-objective balance is maintained across iterations, achieving a 1.41% thermoelectric load increase and 1.54% optimal coal consumption reduction. The algorithm reduces heat/electricity losses and operational costs under diverse conditions while enhancing load utilization rates. These results validate IFEMOAFSA’s effectiveness in solving annual load optimization challenges for cogeneration systems, showing promising applications for similar multi-objective optimization problems requiring dynamic adaptability and robust convergence properties.http://www.sciencedirect.com/science/article/pii/S0142061525001462Artificial fish schoolsMulti-objective optimizationEconomic allocationCogenerationIntuitionistic fuzzy entropy
spellingShingle Xueqiang Shen
Jiaxin Wang
Load optimization of cogeneration units based on intuitive multi-objective fish swarm algorithm
International Journal of Electrical Power & Energy Systems
Artificial fish schools
Multi-objective optimization
Economic allocation
Cogeneration
Intuitionistic fuzzy entropy
title Load optimization of cogeneration units based on intuitive multi-objective fish swarm algorithm
title_full Load optimization of cogeneration units based on intuitive multi-objective fish swarm algorithm
title_fullStr Load optimization of cogeneration units based on intuitive multi-objective fish swarm algorithm
title_full_unstemmed Load optimization of cogeneration units based on intuitive multi-objective fish swarm algorithm
title_short Load optimization of cogeneration units based on intuitive multi-objective fish swarm algorithm
title_sort load optimization of cogeneration units based on intuitive multi objective fish swarm algorithm
topic Artificial fish schools
Multi-objective optimization
Economic allocation
Cogeneration
Intuitionistic fuzzy entropy
url http://www.sciencedirect.com/science/article/pii/S0142061525001462
work_keys_str_mv AT xueqiangshen loadoptimizationofcogenerationunitsbasedonintuitivemultiobjectivefishswarmalgorithm
AT jiaxinwang loadoptimizationofcogenerationunitsbasedonintuitivemultiobjectivefishswarmalgorithm