An Improved Whale Optimization Algorithm via Angle Penalized Distance for Automatic Train Operation.

IF 3.4 3区 医学 Q1 ENGINEERING, MULTIDISCIPLINARY
Longda Wang, Yanjie Ju, Long Guo, Gang Liu, Chunlin Li, Yan Chen
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Abstract

This study proposes a novel effective improved whale optimization algorithm via angle penalized distance (IWOA-APD) for automatic train operation (ATO) to effectively improve the ATO quality. Specifically, aiming at the high-quality target speed curve of urban rail trains, a target speed curve multi-objective optimization model for ATO is established with energy saving, punctuality, accurate stopping, and comfort as the indexes; and the comprehensive evaluation strategy utilizing angle-penalized distance as the evaluation index is proposed to enhance the assessment's rationality and applicability. On this basis, the IWOA-APD is proposed using strategies of non-linear decreasing convergence factor, solutions of out-of-bounds eliminating via combination of reflection and refraction, mechanisms of genetic evolution with variable probability, and elite maintenance based on fusion distance and crowding degree distance. In addition, the detailed design scheme of IWOA-APD is given. The test results show that the proposed IWOA-APD achieves significant performance improvements compared to traditional MOWOA. In the optimization scenario from Lvshun New Port Station to Tieshan Town Station of Dalian urban rail transit line No.12, the IGD value shows a remarkable 69.1% reduction, while energy consumption decreases by 12.5%. The system achieves a 64.6% improvement in punctuality and a 76.5% enhancement in parking accuracy. Additionally, comfort level improves by 15.9%.

基于角度惩罚距离的改进鲸鱼优化算法在列车自动运行中的应用。
为有效提高列车自动运行质量,提出了一种新的基于角度惩罚距离的改进鲸鱼优化算法(IWOA-APD)。具体而言,针对城市轨道列车的高质量目标速度曲线,建立了以节能、正点、准确停车、舒适为指标的ATO目标速度曲线多目标优化模型;提出了以角度罚距为评价指标的综合评价策略,提高了评价的合理性和适用性。在此基础上,采用收敛因子非线性递减策略、反射与折射结合的越界消除策略、变概率遗传进化机制以及基于融合距离和拥挤度距离的精英维持策略,提出了IWOA-APD算法。并给出了IWOA-APD的详细设计方案。测试结果表明,与传统的MOWOA相比,IWOA-APD的性能得到了显著提高。以大连城市轨道交通12号线绿顺新港站至铁山镇站为优化场景,IGD值显著降低69.1%,能耗降低12.5%。该系统的准点率提高了64.6%,泊车准确率提高了76.5%。此外,舒适度提高了15.9%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Biomimetics
Biomimetics Biochemistry, Genetics and Molecular Biology-Biotechnology
CiteScore
3.50
自引率
11.10%
发文量
189
审稿时长
11 weeks
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