1 College of Building and Environmental Engineering,Zhengzhou University of Light Industry,Zhengzhou 450000,China
2 College of Electrical and Information Engineering,Zhengzhou University of Light Industry,Zhengzhou 450000,China
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文章历史+
Received
Published
Revised
2025-03-17
2026-02-08
2025-11-10
Online Date
2026-09-21
PDF (16849K)
摘要
针对新能源机车(new energy locomotives,NELs)接入光储(photovoltaic energy storage,PVES)微电网的迫切现实需求,提出基于洪水算法的机务段微电网光储容量优化配置方法。首先,结合新能源机车蓄电池、储能站等柔性负荷特征,构建面向新能源机车机务段微电网的光储容量优化配置数学模型。其次,以负荷缺电率、弃光率、光伏能源渗透率作为评价指标,选取春夏秋冬4个典型日进行算例分析。最后,采用洪水算法对所建模型进行求解,并对比分析3种新能源机车充电方案和4种优化算法。仿真结果表明,洪水算法能够在更少的迭代次数内达到最优解,证实了其在复杂优化问题中的高效性和优越性。优化所得配置方案充分调动了新能源机车蓄电池充电这一柔性负荷的灵活性,实现了“荷随源变”,平均光伏发电渗透率达93.98%,保证了矿区铁路运输的低碳化和经济性。
Abstract
In response to the pressing practical requirements associated with new energy locomotives (NELs) integrated into photovoltaic energy storage (PVES) microgrids,a methodology was proposed for optimizing the configuration of PVES capacity within the locomotive depot microgrid,utilizing a flood algorithm. Firstly,by integrating the flexible load characteristics associated with NEL batteries and energy storage stations,a mathematical model was developed to optimize the configuration of PVES capacity. Secondly,four typical days in spring,summer,autumn and winter were selected for example analysis,utilizing the load shortage rate,light rejection rate and photovoltaic energy penetration rate as key evaluation metrics. Finally,the flood algorithm was employed to solve the model,followed by a comparative analysis of three NEL charging schemes alongside four optimization algorithms. The findings from the simulation indicate that the flood algorithm is capable of attaining the optimal solution in fewer iterations,thereby demonstrating its efficiency and superiority in addressing complex optimization challenges. The optimized configuration scheme effectively harnesses the flexibility of the flexible load of NEL battery charging system,achieving “load following source”. The average penetration rate of photovoltaic power generation attains 93.98%,thereby promoting the low carbonization and economic viability of railway transportation in mining regions.
AN Xiao-yu, LI Rui, LU Fa-long.
Optimal Configuration of Photovoltaic and Energy Storage Capacity for Microgrid in Locomotive Depot Based on Flood Algorithm[J].
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