基于直流充电机的能效综合优化研究  

Research on comprehensive optimization of energy efficiency based on DC charger

作　　者：孙继强[1] 张闯 刘洋[1] 杨扬 陈月 国帅 Sun Jiqiang;Zhang Chuang;Liu Yang;Yang Yang;Chen Yue;Guo Shuai(XJ Group Corporation,Xuchang 461000,Henan,China;Heilongjiang Electric Instrument Engineering Technology Research Center Co.,Ltd.,Harbin 150028,China)

机构地区：[1]许继集团有限公司,河南许昌461000 [2]黑龙江省电工仪器仪表工程技术研究中心有限公司,哈尔滨150028

出　　处：《电测与仪表》2023年第7期176-182,共7页Electrical Measurement & Instrumentation

基　　金：国网河北省电力有限公司科技项目(5204XQ20008T)。

摘　　要：直流充电机作为电动汽车充电设施,其能效问题愈发受到重视,目前国内外对于直流充电机能效的研究主要集中在提高能效计量精度和改善能效计量方法上,缺乏对于直流充电机自身能效改善的研究。对此,文章主要在直流充电机的能效改善上进行了研究。通过分析各主要功能单元的功耗构成分布,重点对直流充电机的功率转换模块、控制器、液晶屏、辅助电源等部件进行了优化设计,提出相应的节能降损方案,对每个部分针对性地优化解决,以降低各个功能单元在实际运行中产生的能量损耗,通过实验验证了所提出的节能降损措施的有效性。文章研究结果对充电桩提高充电服务水平,改善能效问题具有重要意义,有利于电动汽车领域的长足发展,可以加快节能减排政策的落实。As an electric vehicle charging facility,the energy efficiency of DC chargers has been paid more and more attention.At present,the research on the energy efficiency of DC chargers mainly focuses on improving the energy efficiency measurement accuracy and energy efficiency measurement methods,and lack of research on the improvement of energy efficiency of DC charger.In view of this,this paper mainly studies the improvement of energy efficiency of DC charger,analyzes the power consumption composition distribution of main functional units,and focuses on the power conversion module,the controller,LCD screen,auxiliary power supply and other components are optimized,the corresponding energy-saving and loss reduction schemes are proposed,and the targeted optimization solutions for each part are proposed to reduce the energy loss generated by each functional unit in the actual operation.And the effectiveness of the proposed energy-saving and loss reduction schemes is verified by experiments.The research results of this paper are of great significance for the charging pile to improve the charging service level and energy efficiency,which is conducive to the rapid development of the field of electric vehicles and accelerate the implementation of energy conservation and emission reduction policies.

关 键 词：电动汽车 直流充电机 能效改善 节能降损 

分 类 号：TM933[电气工程—电力电子与电力传动]