Suzhou Electric Appliance Research Institute
期刊號: CN32-1800/TM| ISSN1007-3175

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基于壓電效應的磁場能量采集管理電路研究

來源:電工電氣發布時間:2020-02-27 14:27 瀏覽次數:635
基于壓電效應的磁場能量采集管理電路研究
 
趙帥,周科峰,劉琛,王晗
(國網江蘇省電力有限公司南京供電分公司,江蘇 南京 210019)
 
摘 要:對基于壓電效應的磁場能量采集管理電路進行了研究,介紹了不同能量管理電路的結構和工作原理。通過MATLAB對各能量管理電路在壓電材料處于恒定外力下的輸出功率特性進行了仿真分析,并制作了懸臂梁結構電磁能量采集裝置和能量管理電路,測試了各能量管理電路在恒定幅值工頻磁場下的輸出功率特性,結果表明,在2.4 Oe工頻磁場下串聯同步開關電感電路使輸出功率提高了13.14%。使用該裝置在20 A載流導線附近成功采集磁場能量并點亮LED燈。
關鍵詞:磁場能量采集;能量管理電路;壓電效應;恒定磁場
中圖分類號:TM154 文獻標識碼:A 文章編號:1007-3175(2020)02-0012-06
 
Research on Magnetic Energy Harvesting Management Circuit Based on Piezoelectric Effect
 
ZHAO Shuai, ZHOU Ke-feng, LIU Chen, WANG Han
(Nanjing Power Supply Company, State Grid Jiangsu Electric Power Co., Ltd, Nanjing 210019, China)
 
    Abstract: This paper studied on several magnetic energy harvesting circuits based on piezoelectric effect. Introduction was made to the structure and working principle of different energy management circuits. The output power characteristics of each energy management circuit were carried out simulation by MATLAB when the piezoelectric material was subjected to the force of constant amplitude. A magnetic energy harvesting device of cantilever beam structure and several circuits were designed to measure the output power characteristics of various energy management circuits under the power frequency magnetic field of constant amplitude. The results show that the output power can be increased by 13.14% under 2.4 Oe power frequency magnetic field by using the S-SSHI circuit. Magnetic field energy can be successfully collected near 20 A current-carrying conductor with this device.
    Key words: magnetic energy harvesting; energy management circuit; piezoelectric effect; steady magnetic field
 
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