摘 要
随着全球能源转型和环保意识的提升，电动汽车（EV）作为可持续交通的重要组成部分，其普及速度显著加快，然而大规模电动汽车充电行为对配电网带来了新的挑战。本研究旨在分析电动汽车充电负荷对配电网运行特性的影响，并提出有效的解决方案以缓解潜在问题。通过构建电动汽车充电负荷模型，结合实际配电网数据，采用时序仿真与优化算法相结合的方法，定量评估了不同充电场景下配电网的电压偏差、线路损耗及变压器负载率等关键指标。研究结果表明，无序充电可能导致配电网局部过载、电压越限等问题，而有序充电策略能够显著改善电网运行状态。
关键词：电动汽车充电负荷 配电网运行特性 有序充电策略
Abstract
With the global energy transition and the increasing awareness of environmental protection, the adoption of electric vehicles (EV), as an important part of sustainable transportation, has been significantly accelerated, but the large-scale ev charging behavior has brought new challenges to the distribution network. This study aims to analyze the influence of EV charging load on the operation characteristics of the distribution network and propose effective solutions to alleviate potential problems. By constructing the ev charging load model, combining with the actual distribution network data, and using the method of combining timing simulation and optimization algorithm, the key indicators such as voltage deviation, line loss and transformer load rate of the distribution network in different charging scenarios are quantitatively evaluated. The results show that disorderly charging may lead to problems such as local overload and voltage limit of the distribution network, and the orderly charging strategy can significantly improve the operation state of the power grid.
Keyword:Electric Vehicle Charging Load Distribution Network Operation Characteristics Orderly Charging Strategy
目 录
1绪论 1
1.1研究背景与意义 1
1.2国内外研究现状分析 1
1.3本文研究方法与技术路线 2
2电动汽车充电对配电网的影响分析 2
2.1配电网负荷特性变化研究 2
2.2充电负荷对电压质量的影响 3
2.3充电行为对电网稳定性的作用 3
2.4区域电网容量限制评估 4
3电动汽车充电模式与优化策略研究 4
3.1不同充电模式的对比分析 4
3.2智能充电调度算法设计 5
3.3基于需求响应的充电管理策略 5
3.4分布式充电设施布局优化研究 6
4配电网适应性改造与解决方案探讨 6
4.1配电网升级改造关键技术研究 6
4.2储能系统在充电场景中的应用 7
4.3微电网对充电负荷的支撑作用 7
4.4新型配电架构设计与实施路径 8
结论 8
参考文献 10
致谢 11
