The study of optimal reactive power dispatch in power systems based on further improved membrane search algorithm

Wenhao Lai, Qi Song, Xiaoliang Zheng and Hualiang Chen

Applied Energy, 2025, vol. 377, issue PA, No S0306261924018166

Abstract: Optimal reactive power dispatch (ORPD) plays a pivotal role in reducing power system transmission losses and enhancing system stability by rationally adjusting the parameters of relevant equipment, which is of utmost importance to modern society. We propose a membrane search algorithm (MSA) based on the theory of membrane computing. For the problem of minimizing transmission loss in ORPD in complex nonconvex, nonlinear, and discrete power systems, we further refine it and utilize benchmark functions CEC2017 and CEC2020 to verify the effectiveness of the improvement. The test findings revealed that the exploitation and exploration capabilities of the MSA were enhanced, exhibiting a faster convergence rate and better robustness. Subsequently, the improved MSA was employed to address the problem of minimizing transmission loss in the IEEE 57-bus, IEEE 118-bus, and IEEE 300-bus systems, and it successfully obtained the optimal transmission loss of these systems. The experiment demonstrated that the further improved MSA achieved the most optimal results and could offer a more competitive solution for transmission loss. This study presents a novel high-performance optimization algorithm, which also represents another practical application of membrane computing theory in resolving power system issues and has achieved the most outstanding results.

Keywords: Optimal reactive power dispatch; Power system; Improved membrane search algorithm; Minimum transmission loss (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1016/j.apenergy.2024.124433

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