摘要
The significant decrease in battery performance at low temperatures is one of the critical challenges that electric vehicles(EVs)face,thereby affecting the penetration rate in cold regions.Alternating current(AC)heating has attracted widespread attention due to its low energy consumption and uniform heating advantages.This paper introduces the recent advances in AC heating from the perspective of practical EV applications.First,the performance degradation of EVs in low-temperature environments is introduced briefly.The concept of AC heating and its research methods are provided.Then,the effects of various AC heating methods on battery heating performance are reviewed.Based on existing studies,the main factors that affect AC heating performance are analyzed.Moreover,various heating circuits based on EVs are categorized,and their cost,size,complexity,efficiency,reliability,and heating rate are elaborated and compared.The evolution of AC heaters is presented,and the heaters used in brand vehicles are sorted out.Finally,the perspectives and challenges of AC heating are discussed.This paper can guide the selection of heater implementation methods and the optimization of heating effects for future EV applications.
基金
supported in part by the National Key Research and Development Program of China under Grant 2021YFB1600200
in part by the Shaanxi Province Postdoctoral Research Project under grant 2023BSHEDZZ223
in part by the Fundamental Research Funds for the Central Universities,CHD,under grant 300102383101
in part by the Shaanxi Province Qinchuangyuan High-Level Innovation and Entrepreneurship Talent Project under grant QCYRCXM-2023-112
the Key Research and Development Program of Shaanxi Province under grant 2024GX-YBXM-442
in part by the National Natural Science Foundation of China under grand 62373224.
