摘要
随着电动自行车的普及,电动车过充导致的电池发热、自燃等安全隐患日益突出。为使得电池在能充满电的同时,消除过充带来的安全隐患,本文提出了一种涓流充电检测算法,并将之应用于智能插座上。所提算法结合了分段检测、电流梯度变化以及最小二乘法等多项技术,实现对连接在智能插座上的不同充电器的涓流充电过程的准确检测,并在充电器进入涓流充电达1小时后,立即切断电源,确保电池充满电且不过充。该技术已经应用到产品中,数百次的实测结果表明,所提涓流充电检测算法的时间误差不超过5分钟,漏检及误检概率为0。
With the popularity of electric bicycles,the potential safety problems such as battery heating and self ignition caused by overcharge of electric vehicles are increasingly prominent.In order to make the battery fully charged and eliminate the hidden danger of overcharge,a trickle charge detection algorithm is proposed and applied to a smart socket.The proposed algorithm combines many technologies such as segmented detection,current gradient change and least square method to realize the accurate detection of trickle charging process for different chargers,which are connected to the smart socket.After the charger enters the trickle charging for 1 hours,the power source is cut immediately to ensure that the battery is fully charged but not overcharged.The technology has been applied to products,and hundreds of test results show that the time error of the proposed trickle charge detection algorithm is less than 5 minutes,and the probability of missing and wrong inspection is 0.
作者
赵成文
李婷
陆欣
刘飞飞
贾宝磊
ZHAO Cheng⁃wen;LI Ting;LU Xin;LIU Fei⁃fei;JIA Bao⁃lei(China Gridcom Co.,Ltd.,Shenzhen 518031,China)
出处
《电子设计工程》
2020年第14期167-170,174,共5页
Electronic Design Engineering
关键词
电动自行车
智能插座
充电控制
涓流充电
最小二乘法
electric bicycle
smart socket
charging control
trickle charging
least square method
