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Energy Harvesting From Two-Wire Power Cords Using Magnetoelectric Transduction

机译：利用磁电转换从两线电源线收集能量

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摘要

This paper presents an energy harvester using a Terfenol-D/PMNT/Terfenol-D magnetoelectric (ME) transducer for scavenging ac magnetic field energy from two-wire power cords connected to household and commercial appliances. The harvester uses a magnetic circuit consisting of six NdFeB magnets mounted on the free end of a cantilever beam. The magnets produce concentrated flux gradient on the ME transducer, and the vertical Ampere forces acting on the two conductors of the power cord are superimposed. An enhanced movement is then induced on the magnetic circuit. The ME transducer undergoes magnetic field variations and generates power output. A prototype is fabricated and tested. Because of the high magnetomechanical coupling effect of the magnetostrictive material and the large flux gradient on the ME transducer, the harvester can generate a maximum power of 671.2 (mu ) W with a matching load resistance of 991 k (Omega ) at 6 A. The results demonstrate the potential of the proposed device applied to electricity end-use environment in electric power systems.
机译：本文介绍了一种使用Terfenol-D / PMNT / Terfenol-D磁电（ME）换能器的能量收集器，用于清除与家用和商用设备连接的两线电源线的交流磁场能量。收割机使用由六个NdFeB磁体组成的磁路，这些磁体安装在悬臂梁的自由端。磁铁在ME传感器上产生集中的磁通梯度，作用在电源线的两个导体上的垂直安培力叠加在一起。然后在磁路上感应出增强的运动。 ME换能器承受磁场变化并产生功率输出。原型被制造和测试。由于磁致伸缩材料的高磁机械耦合效应和ME换能器上的通量梯度大，因此收割机可以产生671.2 （mu）的最大功率 W （Omega） 6 A.结果证明了该装置在电力系统的电力最终使用环境中的应用潜力。

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