狭窄空间内矩形导体电流测量装置设计与优化

Design and optimization of current measurement device for rectangular conductors in confined spaces

针对狭窄空间内矩形导体电流测量,提出了一种基于霍尔元件椭圆阵列的电流测量装置,通过理论计算和有限元仿真分析确定了相对最优的阵列分布,搭建实验平台并通过实验验证了该方法的可行性,以及导体偏心状态下电流测量的有效性,同时分析了导体偏心状态下的电流测量偏心误差。仿真和实验结果表明,椭圆阵列电流测量装置在行业允许的±1%误差限内,允许导线X轴偏心-4.1~4.1 mm,Y轴无限制;且与传统电流测量装置相比,重量减轻82.9%,安装占用面积减小72.4%,对狭窄空间的适用性更强,为新能源产品轻量化、小型化、持续降本提供了技术支持。

For the current measurement of rectangular conductor in narrow space,a current measurement device based on elliptic array of Hall elements is proposed,and the relatively optimal array distribution is determined through theoretical calculation and finite element simulation analysis,and the feasibility of the method is verified by constructing an experimental platform and experimentally verifying the validity of the current measurement in the state of conductor eccentricity,and at the same time analyzing the eccentricity error of the current measurement in the state of conductor eccentricity is analyzed.Simulation and experimental results show that the elliptical array current measurement device designed in this paper is within the industry's allowable±1%error limit,allowing wire X-axis eccentricity of-4.1 to 4.1 mm,Y-axis is unlimited;and compared with the traditional current measurement device,the weight is reduced by 82.9%,and the installation occupancy area is reduced by 72.4%,and the applicability to the narrow space is much stronger,which provides technical support for new energy product lightweight,miniaturization,and continuous cost reduction.