水下航行器非接触式充电电磁耦合器磁场分析  

Magnetic Field Analysis for Electromagnetic Coupler in Contactless Power Transmission System for Autonomous Underwater Vehicle

作　　者：文海兵[1] 胡欲立[1] 张克涵[1] 王司令[1] 严卫生[1] 宋保维[1] 

机构地区：[1]西北工业大学航海学院,西安710072

出　　处：《计算机测量与控制》2013年第2期458-460,476,共4页Computer Measurement &Control

摘　　要：非接触式充电是一种新型的能源补给方式,其效率高、绝缘性好、结构简单等特点使得其在水下航行器能源补给方面有良好的运用前景;电磁耦合器是水下AUV非接触式充电系统的关键组成部分,从实际运用环境出发,设计了便于水下航行器对接的电磁耦合器磁芯结构和外形结构,并利用电磁场有限元分析软件Magnet对电磁耦合器进行了磁场仿真分析;分别研究了电磁耦合器气隙和偏心对系统磁场的影响,研究表明气隙为4mm时的磁场强度是2mm气隙时的47.36%～53.26%,当存在2mm的偏心时,磁场强度无明显下降,但磁芯边缘磁场强度较大区域缩小28.04%;最后对非接触式充电系统的设计提出了建议。As a method of transferring electrical energy from a stationary to a moving device, the contactless power transmission （CLPT） system has a good application prospect in autonomous underwater vehicles＇ （AUV） power system owing to its high efficiency, good insula- ting property and simple structure. Electromagnetic （EM） coupler is the key component of a contactless power transmission system for AUV. Considering practical application, design core structure and assembly structure, which are convenient in docking for the EM coupler. Finite element analysis software Magnet was used to simulate and analyze the magnetic field of the EM coupler. The influence of gap length and non--coaxial displacement on the EM coupler＇s magnetic field was discussed. Research have shown that when the air gap is 4ram, the magnetic field intensity could be reduced to 47.36 % -53.26 %, compared to the condition of 2ram air gap. When the non--coaxial displace ment is 2ram, the change of the magnetic field intensity is not significant, but the intense magnetic field area is decreased by 28.04%. Final ly, some suggestions were proposed for the contactless power transmission system.

关 键 词：非接触式充电 水下航行器 电磁耦合器 磁场分析 

分 类 号：TM724[电气工程—电力系统及自动化]