Design and fabrication of micro rotational generators

SUN Shao-chun; SHI Geng-chen

doi:10.3788/OPE.20111906.1306

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Design and fabrication of micro rotational generators

Article | 更新时间：2020-08-12

- Design and fabrication of micro rotational generators
- Optics and Precision Engineering Vol. 19, Issue 6, Pages: 1306-1312(2011)
- 作者机构：
  
  北京理工大学机电工程与控制国家级重点实验室北京,100081
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20111906.1306
  CLC： TM382
- Received：16 August 2010，
  
  Revised：29 September 2010，
  
  Published Online：25 June 2011，
  
  Published：25 June 2011
- 稿件说明：
移动端阅览
孙韶春, 石庚辰. 旋转式微发电机的设计与制造[J]. 光学精密工程, 2011,19(6): 1306-1312

SUN Shao-chun, SHI Geng-chen. Design and fabrication of micro rotational generators[J]. Editorial Office of Optics and Precision Engineering, 2011,19(6): 1306-1312
孙韶春, 石庚辰. 旋转式微发电机的设计与制造[J]. 光学精密工程, 2011,19(6): 1306-1312 DOI： 10.3788/OPE.20111906.1306.

SUN Shao-chun, SHI Geng-chen. Design and fabrication of micro rotational generators[J]. Editorial Office of Optics and Precision Engineering, 2011,19(6): 1306-1312 DOI： 10.3788/OPE.20111906.1306.

摘要

为了实现旋转式微发电机对微系统的持续供电

研究了旋转式微发电机的设计、制造以及实验方法。首先

设计了具有单转子和单定子的三相、永磁同步微发电机模型。使用传统的磁路分析法得出了微发电机气隙磁密和感应电动势的表达式

确定了微发电机的主要设计参数。对模型进行有限元分析

得到了感应电动势波形。然后

利用精密加工技术加工了转子和定子各构件

并装配成为尺寸为(

72) mm

的微发电机样机。最后

通过实验得出了微发电机在不同气隙厚度和不同转速下的感应电动势。实验结果显示

在气隙厚度为300 m

转子转速为10 kr/min时

微发电机的一相感应电动势峰峰值为26.2 mV;当接入0.23 的对称负载时

三相输出功率为357.3 W。结果表明

微发电机输出结果比较理想

有望作为微系统的电源装置。

Abstract

In order to provide continuous electric powers to micro systems by using micro rotational generators as power sources

the design approach

fabrication technique and test method of a micro rotational generator were researched. Firstly

a model of three-phase and permanent magnet synchronous generator with a rotor and a stator was designed. The formulas for air density and induced Electromotive Force(EMF) were given by a magnetic circuit analysis and main design parameters of the micro generator were determined. Then

Finite Element Analysis(FEA) was used to analyze the model to obtain the waveform of induced EMF. Furthermore

the precise machining technique was used to fabricate the components of the rotor and stator and to assemble to a micro generator with a size of (

72) mm

. Finally

micro generator was tested in variations of air-gap thickness and rotation speed. Experimental results indicate that with a air-gap thickness of 300 m and a rotation speed of 10 kr/min

the induced EMF in one phase is 26.2 mV

p-p

; when symmetrical loads of 0.23 are connected to the generator

the sum of output power is 357.3 W. Compared to the FEA results

the micro generator shows an ideal output

which means that the generator may be used in micro systems as the power sources.

关键词

Keywords

references

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