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Performance exploration of an energy harvester near the varying magnetic field of an operating induction motor

机译：运转中的感应电动机变化磁场附近的能量采集器的性能探索

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摘要

This paper reports a performance exploration of a piezoelectric harvester which is positioned near an operating induction motor. The harvester includes a magnet knob in a pendulum arrangement, which ascertains mechanical vibrations under the varying magnetic field. This energy harvester transforms the ambient unused magnetic energy into the electricity due to the piezoelectric layer attached to the pendulum. It has been proven that when the motor is under operation, the varying ambient field causes a varying magnetic force at the tip of harvester, then output voltage between the terminals of piezoelectric layer is produced due to the mechanical vibrations. This output signal has some characteristics of the operating induction motor in terms of its operation frequency, number of magnetic pole and natural frequency of the harvester. Since the surrounding field of the induction motor directly depends on the current flowing through the windings and electrical parameters, both the amplitude U and the frequency ω_m of the harvested voltage can be characterized after some certain parametrical explorations. It has been proven that the harvested voltage strictly depends on the electrical load, which is attached to the terminals of the harvester, after the rectifying circuit. The harvested power per surrounding volume can be increased up to 0.11 mW/cm~3, if the entire surrounding volume of the motor is considered.
机译：本文报告了压电感应器的性能探索，该感应器位于运行中的感应电动机附近。收割机包括一个摆式的磁铁旋钮，可确定在变化的磁场下的机械振动。由于附着在摆锤上的压电层，该能量收集器将周围未使用的磁能转换为电能。已经证明，当电动机在运转时，变化的环境磁场会在收割机的尖端产生变化的磁力，然后由于机械振动会在压电层的端子之间产生输出电压。就其运行频率，磁极数和收割机的固有频率而言，该输出信号具有运行中的感应电动机的某些特征。由于感应电动机的周围磁场直接取决于流经绕组的电流和电气参数，因此在某些参数化探索之后，可以表征采集电压的幅度U和频率ω_m。已经证明，采集电压严格取决于整流电路之后附接到采集器端子的电负载。如果考虑电动机的整个周围体积，则每个周围体积的采集功率可以增加到0.11 mW / cm〜3。

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  • 来源
    《Energy Conversion & Management》 |2013年第8期|156-162|共7页
  • 作者

    Yunus Uzun; Erol Kurt;

  • 作者单位

    Department of Electrics and Energy, Vocational School, Ahi Evran University, 40100 Kirsehir, Turkey;

    Department of Electrical and Electronics Engineering, Faculty of Technology, Cazi University, 06500 Teknikokullar, Ankara, Turkey;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Piezoelectric harvester; Magnetic field; Induction motor;

    机译：压电收割机;磁场;感应电动机;

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