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一种具有聚磁作用的轨道式非接触变压器

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Keywords: 感应式电能传输,轨道式非接触变压器,8字形绕组

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Abstract:

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。

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