一种具有聚磁作用的轨道式非接触变压器  

A New Type of Contactless Transformer in Track Inductive Power Transfer System

作　　者：李明硕[1] 陈乾宏[1] 侯佳[1] Siu Chung Wong Michael Xie 

机构地区：[1]南京航空航天大学航空电源航空科技重点实验室,南京210016 [2]香港理工大学电子信息工程部

出　　处：《电工技术学报》2013年第10期25-32,共8页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金(51077069);江苏省自然科学基金(BK2009372);高等学校博士学科点专项科研基金(20103218110013)资助项目

摘　　要：在世界各国都在倡导资源节约型、环境友好型绿色城市的今天,将非接触电能传输技术应用于城市轻轨电车领域,可大大提高系统运行的安全稳定性,减少架空线路引起的视觉污染。目前对轨道式非接触变压器的研究主要集中在如何优化变压器二次结构从而提高能量的有效耦合。本文则从增强能量有效耦合区磁场的角度,提出一种具有聚敛磁场能力的新型轨道式非接触变压器。通过理论分析、仿真和实验对比等手段证明了此种变压器一次的8字形绕组结构具有聚敛内部磁场,减小外部漏磁场的能力。论文还指出采用8字形一次绕组结构,其磁通方向交替变化,存在磁通感应盲区,论文进一步给出了二次绕组的选取和优化方法以避免感应盲区。最终应用此种变压器,完成了轨道车非接触供电系统的实验。Many countries around the world advocate to build resource-conserving and environmentally friendly cities. Inductive power transfer （IPT） applied in urban light rail has been regarded as an effective way of ensuring safety and stability of public transportations and also can reduce visual pollution by eliminating the overhead line. Existing researches of track contactless transformer are mainly focusing on how to optimize the secondary side of the transformer to achieve high coupling coefficient. In this paper, a new type of contactless track transformer which can converge the magnetic field is proposed from the perspective of enhancing the magnetic coupling of effective coupling zone. The ability of the figure 8 coil which can converge internal magnetic field and reduce external leakage magnetic field is verified by theoretical analysis, software simulation and experiment. The paper also points out that because of the primary winding structure, the magnetic flux direction changes alternatively. There would exist inductive blind area. Through the simulation the paper also discusses the selection and optimization of the secondary side in order to avoid inductive blind area. An IPT track vehicle charging system was established to verify the new type transformer.

关 键 词：感应式电能传输 轨道式非接触变压器 8字形绕组 

分 类 号：TM461[电气工程—电器]