Optimized Design of LCL Filters for Single-Phase Grid-Connected Inverter Systems using Advanced Optimization Techniques
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Abstract
AI-driven metaheuristic optimization algorithms have demonstrated strong potential in solving complex, high-dimensional engineering design problems. This paper applies and systematically compares three representative swarm-intelligence and evolutionary computation methods—particle swarm optimization (PSO), whale optimization algorithm (WOA), and grey wolf optimizer (GWO)—to the parameter design of LCL filters in single-phase grid-tied inverter systems, a class of problems characterized by nonlinear constraints and competing performance objectives. A structured optimization framework is developed, incorporating an objective function targeting total harmonic distortion (THD) minimization and three engineering constraints governing inductance bounds, damping power loss, and resonance frequency range. Computational and simulation results analyzed under multiple operating conditions—including step-change transients and weak-grid short-circuit faults—demonstrate that PSO achieves superior convergence behavior, lower fitness values, and better robustness compared to WOA and GWO, while ensuring full compliance with IEEE 519 harmonic standards. The findings provide quantitative insights into the comparative computational performance of these algorithms on a constrained continuous optimization problem with direct industrial applicability.
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References
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Cite This Article
TY - JOUR AU - Hussain, Imad AU - He, Yigang AU - Khan, Atta Ullah AU - Ali, Yaqoob AU - Khan, Idrees PY - 2026 DA - 2026/04/05 TI - Optimized Design of LCL Filters for Single-Phase Grid-Connected Inverter Systems using Advanced Optimization Techniques JO - ICCK Transactions on Advanced Computing and Systems T2 - ICCK Transactions on Advanced Computing and Systems JF - ICCK Transactions on Advanced Computing and Systems VL - 2 IS - 3 SP - 158 EP - 172 DO - 10.62762/TACS.2025.424683 UR - https://www.icck.org/article/abs/TACS.2025.424683 KW - swarm intelligence KW - evolutionary computation KW - AI-driven optimization KW - metaheuristic algorithms KW - constrained parameter optimization KW - LCL filter design KW - weak grid AB - AI-driven metaheuristic optimization algorithms have demonstrated strong potential in solving complex, high-dimensional engineering design problems. This paper applies and systematically compares three representative swarm-intelligence and evolutionary computation methods—particle swarm optimization (PSO), whale optimization algorithm (WOA), and grey wolf optimizer (GWO)—to the parameter design of LCL filters in single-phase grid-tied inverter systems, a class of problems characterized by nonlinear constraints and competing performance objectives. A structured optimization framework is developed, incorporating an objective function targeting total harmonic distortion (THD) minimization and three engineering constraints governing inductance bounds, damping power loss, and resonance frequency range. Computational and simulation results analyzed under multiple operating conditions—including step-change transients and weak-grid short-circuit faults—demonstrate that PSO achieves superior convergence behavior, lower fitness values, and better robustness compared to WOA and GWO, while ensuring full compliance with IEEE 519 harmonic standards. The findings provide quantitative insights into the comparative computational performance of these algorithms on a constrained continuous optimization problem with direct industrial applicability. SN - 3068-7969 PB - Institute of Central Computation and Knowledge LA - English ER -
@article{Hussain2026Optimized,
author = {Imad Hussain and Yigang He and Atta Ullah Khan and Yaqoob Ali and Idrees Khan},
title = {Optimized Design of LCL Filters for Single-Phase Grid-Connected Inverter Systems using Advanced Optimization Techniques},
journal = {ICCK Transactions on Advanced Computing and Systems},
year = {2026},
volume = {2},
number = {3},
pages = {158-172},
doi = {10.62762/TACS.2025.424683},
url = {https://www.icck.org/article/abs/TACS.2025.424683},
abstract = {AI-driven metaheuristic optimization algorithms have demonstrated strong potential in solving complex, high-dimensional engineering design problems. This paper applies and systematically compares three representative swarm-intelligence and evolutionary computation methods—particle swarm optimization (PSO), whale optimization algorithm (WOA), and grey wolf optimizer (GWO)—to the parameter design of LCL filters in single-phase grid-tied inverter systems, a class of problems characterized by nonlinear constraints and competing performance objectives. A structured optimization framework is developed, incorporating an objective function targeting total harmonic distortion (THD) minimization and three engineering constraints governing inductance bounds, damping power loss, and resonance frequency range. Computational and simulation results analyzed under multiple operating conditions—including step-change transients and weak-grid short-circuit faults—demonstrate that PSO achieves superior convergence behavior, lower fitness values, and better robustness compared to WOA and GWO, while ensuring full compliance with IEEE 519 harmonic standards. The findings provide quantitative insights into the comparative computational performance of these algorithms on a constrained continuous optimization problem with direct industrial applicability.},
keywords = {swarm intelligence, evolutionary computation, AI-driven optimization, metaheuristic algorithms, constrained parameter optimization, LCL filter design, weak grid},
issn = {3068-7969},
publisher = {Institute of Central Computation and Knowledge}
}
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Copyright © 2026 by the Author(s). Published by Institute of Central Computation and Knowledge. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/), which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made.
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