用可解释模型预测充电桩故障,帮城市应对极端气候威胁。
Climate-resilient electric vehicle charging infrastructure for sustainable cities: An interpretable causal-ensemble framework for preventive maintenance and low-carbon mobility
- 分四类特征由不同专家处理,动态加权预测1-30天故障风险。
- 30天预测仍保持85%召回率,仅损失3.2点AUC,优于12个基线。
- 发现高温是关键致因,30%站点对高温敏感,可制定气候适应性维护策略。
可靠的电动汽车充电基础设施是可持续低碳城市的关键,但极端高温、强降水和高湿度等城市气候压力正增加设备故障风险,削弱城市能源与交通服务韧性。从被动维修转向预防性维护,依赖于准确的前瞻性故障风险预测,该任务因物理、行为、环境及历史信号在多时间尺度上的异质性,以及跨数周的预测需求而复杂化。本文提出FGDSE——一种特征驱动的动态堆叠集成模型,构建可解释的决策支持系统,用于气候韧性的充电资产运维管理。它将异构信号划分为四类特征族,分别交由契合数据特性的领域专家处理,并引入两个深度时序专家以捕捉短期波动与长期退化;通过分时段门控机制学习自适应权重,实现1至30天的日级故障风险预测。结合SHAP归因与X-learner,将概率输出扩展为因果决策支持,量化干预后效果。基于13个站点25个月的数据,FGDSE在10天以上预测中超越12个基线,在30天预测中维持约85%宏观召回率,且仅出现3.2点的AUC衰减;结果显示故障历史影响力减弱,气候压力影响上升。研究识别出极端高温是唯一随时间效应放大的暴露因素,标记约30%站点为热敏感,提供定量阈值以指导气候适应型维护,增强城市交通韧性并保障低碳出行。
原文摘要 · Abstract (English)
Reliable electric vehicle (EV) charging infrastructure is a cornerstone of sustainable, low-carbon cities, yet urban climate stress such as extreme heat, heavy precipitation, and humidity increasingly raises equipment fault risk and undermines the resilience of urban energy and mobility services. Shifting operation from reactive repair to preventive maintenance depends on accurate, forward-looking fault-risk prediction, a task complicated by the heterogeneous time scales of physical, behavioral, contextual, and historical signals and by forecasting over a multi-week horizon. We develop FGDSE, a feature-governed dynamic stacking ensemble that forms an interpretable decision-support system for climate-resilient charging-asset management. It partitions heterogeneous signals into four feature families, assigns each to a domain expert whose inductive bias matches the data, and adds two deep temporal experts for short-term pulses and long-term degradation; a horizon-wise gating mechanism then learns adaptive weights to forecast daily fault risk over 1 to 30 days. SHAP attribution and an X-learner extend the probabilistic output into causal decision support with post-level treatment effects. On 25 months of data from 13 stations, FGDSE surpasses twelve baselines beyond the ten-day horizon, sustains about 85% macro-recall at 30 days with an AUC decay of only 3.2 points, and reveals a shift of dominance from fault history toward climate stress. It identifies extreme heat as the sole exposure whose causal effect amplifies over time, flagging roughly 30% of posts as heat-sensitive and yielding quantitative thresholds for climate-adaptive maintenance that strengthens urban mobility resilience and sustains low-carbon travel.
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