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浙江大学学报(工学版)
J4  2013, Vol. 47 Issue (1): 174-181    DOI: 10.3785/j.issn.1008-973X.2013.01.025
电气工程     
超声波电动机定子振动能量回收转换特性
王光庆1, 陆跃明1, 郭吉丰2
1. 浙江工商大学 信息与电子工程学院,浙江 杭州 310018；2. 浙江大学 电气工程学院,浙江 杭州 310027
Vibration energy harvesting performances of ultrasonic motor stator
WANG Guang-qing1, LU Yue-ming1, GUO Ji-feng2
1.College of Information and Electronics Engineering, Zhejiang Gongshang University, Hangzhou 310018, China;
2. College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
 全文: PDF 
摘要：

 为了向密封、恶劣等极端环境中工作的微型机器人提供驱动力矩和电能,根据行波型超声波电机定子孤极频率反馈跟踪原理,研制能量回馈型超声波电机.与传统超声波电机相比,该电机不仅具有驱动功能,还具有将定子振动能量回收并转换成电能的功能.根据能量回馈型超声波电机驱动原理改进了超声波电动机压电陶瓷的极化分区模式,将超声波电机定子压电陶瓷极化分成3个区,即：激振区、能量采集区和传感区（孤极）.利用定子能量采集区压电陶瓷的正压电效应采集回收超声波电动机定子的机械振动能量.根据铁摩辛柯梁理论和压电本构方程建立超声波电动机定子振动能量采集回收的理论分析模型,研究能量采集区压电陶瓷负载阻抗的匹配问题.利用该模型仿真分析了电机激励频率、激振电压、外接负载电阻等对能量采集区压电陶瓷输出电压、输出电流和输出功率的影响规律,通过实验验证了仿真结果的正确性.
关键词：  ;  超声波电动机(USM);  定子;  振动能量;  采集回收    
Abstract:

 In order to provide the actuating torque and electrical power for the micro-robot operating in the sealed and harsh environment, an energy-recycling type ultrasonic motor (USM) was developed according to the frequency automatic tracking principle of the stator isolated electrode of traveling wave type USM. Compared with the traditional USM, the proposed USM not only has driving function, but also has the function of harvesting the vibration energy and converting it into the electrical power. The polarization pattern of the piezoelectric ceramic (PZT) was modified according to the operating principle of the energy-recycling type USM. The PZT was divided into three sectors, namely exciting sector, the energy harvesting sector and the sensor sector (or isolated sector), respectively. The mechanical vibration energy of the USM stator was harvested by the energy harvesting sector PZT by using the piezoelectric effect. The theoretical model of the vibration energy harvester of the USM stator was derived based on the Timoshenko beam theory and the piezoelectric equation. Consequently, the impedance match of the energy harvesting sector of PZT was analyzed. The effects of the exciting frequency, exciting voltage and resistance load of the USM on the output voltage, output current and output power of the energy harvesting sector of PZT were analyzed based on the model. Experiments were conducted to test the validities of the simulation results.
Key words:  ultrasonic motor (USM)    stator    vibration energy    harvesting and transferring
出版日期: 2013-03-05
:  TM 356  
基金资助:

国家自然科学基金资助项目（51277165）;浙江省自然基金资助项目(Y1080037)；浙江省高校优秀青年教师资助项目；浙江工商大学青年人才资助项目.
作者简介: 王光庆（1975-）,男,副教授,从事超声波电动机的研究.E-mail:kele76@163.com
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引用本文:

王光庆, 陆跃明, 郭吉丰. 超声波电动机定子振动能量回收转换特性[J]. J4, 2013, 47(1): 174-181.

WANG Guang-qing, LU Yue-ming, GUO Ji-feng. Vibration energy harvesting performances of ultrasonic motor stator. J4, 2013, 47(1): 174-181.

链接本文:

http://www.zjujournals.com/xueshu/eng/CN/10.3785/j.issn.1008-973X.2013.01.025    或    http://www.zjujournals.com/xueshu/eng/CN/Y2013/V47/I1/174

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