摘要
根据能量转换原理,设计了一种用于回收微振动能的低频直线式振动能/电能转换模型,该模型动子为相邻互斥永磁体之间加入等长的中空条形铁圆柱结构,该结构增强了气隙磁场强度。利用有限元分析法,以空载感应电动势幅值为研究对象,对所建立的直线振动发电模型进行了结构设计和尺寸优化,最终确定其主体尺寸为Φ16×90 mm。同时利用虚拟仪器技术对最佳尺寸模型的性能进行了测试。由实验与模拟结果可得,该模型系统的固有频率约为11 Hz,最大空载感应电动势为2.4 V,有效地提高了输出感应电压,便于蓄电池充电。
According to the principle of energy conversion, a novel model used for energy conversion from low-frequency linear micro-vibration kinetic energy to power was designed. Using the finite element meth- od, the no-load induced electromotive force amplitude of the conversion model was optimized by changing the structure and size of the energy converter component. The final optimal sizes of the converter are Ф16 ×90 mm. Meanwhile, the performance of the model with optimal size was tested by virtual instrument technology. From the available experimental and simulation results, the system natural frequency is 11 Hz, and the maximum no-load inducted electromotive force is 2. 4 V.
出处
《电机与控制学报》
EI
CSCD
北大核心
2014年第3期67-72,共6页
Electric Machines and Control
基金
国家自然科学基金(51377037)
关键词
微振动能
电能转换
直线发电
空载感应电势
永磁体
铁磁材料组合
micro-vibration energy/power conversion
lining power generation
no-load induced electromotive force
permanent magnet/ferromagnetic material combination structure
