用于电动汽车充电的路面电感耦合功率传输电热分析

IF 10.1 1区工程技术 Q1 ENERGY & FUELS

Applied Energy Pub Date : 2024-11-12 DOI:10.1016/j.apenergy.2024.124809

Xiao Chen , Hao Wang , Zilong Zheng , Fei Lu

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引用次数: 0

摘要

电感耦合功率传输（ICPT）系统为电动汽车（EV）的无线充电提供了一种前景广阔的替代方案。本研究旨在开发一种综合电热分析方法，用于分析嵌入路面的 ICPT 的电力传输和热量传递。首先进行了实验室实验，以评估 ICPT 系统在路面材料干扰下的无线电力传输效率。建立了综合电热模型，分析了在不同车辆偏移情况下，将 ICPT 系统嵌入路面结构的不同路面深度时的传输效率和温度变化。结果表明，在标准充电水平下，典型水灰比为 0.48 的传统水泥混凝土路面材料对电力传输效率的影响可以忽略不计。然而，随着嵌入深度从 4 厘米增加到 16 厘米，效率从 95.4% 下降到 85.9%，而在安装深度为 4 厘米、单侧偏移 15 厘米的情况下，效率进一步下降到 84.6%。功率损耗导致温度发生显著变化。除了 ICPT 组件的热特性外，最大温度变化还受到增量充电状态、充电功率和传输效率的影响。在最不利的情况下，ICPT 系统和路面的温度变化分别高达 112 ℃ 和 76 ℃。

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Electro-thermal analysis of inductively coupled power transfer in pavement for electric vehicle charging

Inductively coupled power transfer (ICPT) system provides a promising alternative for wireless charging of electric vehicles (EVs). This study aims to develop an integrated electro-thermal analysis approach for analyzing power transmission and heat transfer of ICPT embedded in the pavement. Laboratory experiments were first conducted to evaluate wireless power transfer efficiency of ICPT system with the interference of pavement material. An integrated electro-thermal model was established to analyze transmission efficiency and temperature variation when ICPT system is embedded at various pavement depths of pavement structure subject to different vehicle offsets. The results revealed that traditional cement concrete pavement material with a typical water to cement ratio of 0.48 has negligible impact on power transfer efficiency under standard charging levels. However, the efficiency dropped from 95.4 % to 85.9 % as embedment depth increased from 4 cm to 16 cm, and it further decreased to 84.6 % with a 15 cm one-side offset at a 4 cm installation depth. The power loss results in significant changes of temperature. The maximum temperature variations were found to be impacted by incremental state of charge, charging power, and transmission efficiency, in addition to thermal properties of ICPT components. Under the most unfavorable case, those temperature changes of the ICPT system and pavement can be up to 112 °C and 76 °C, respectively.

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来源期刊

Applied Energy 工程技术-工程：化工

CiteScore

21.20

自引率

10.70%

发文量

1830

审稿时长

41 days

期刊介绍： Applied Energy serves as a platform for sharing innovations, research, development, and demonstrations in energy conversion, conservation, and sustainable energy systems. The journal covers topics such as optimal energy resource use, environmental pollutant mitigation, and energy process analysis. It welcomes original papers, review articles, technical notes, and letters to the editor. Authors are encouraged to submit manuscripts that bridge the gap between research, development, and implementation. The journal addresses a wide spectrum of topics, including fossil and renewable energy technologies, energy economics, and environmental impacts. Applied Energy also explores modeling and forecasting, conservation strategies, and the social and economic implications of energy policies, including climate change mitigation. It is complemented by the open-access journal Advances in Applied Energy.