|本期目录/Table of Contents|

[1]余海涛,张涛. 直线振荡电机谐振频率跟踪控制技术研究[J].电机与控制学报,2019,23(06):63-72.[doi:10.15938/j.emc.2019.06.008]
 YU Hai-tao,ZHANG Tao. Strategy of resonant frequency tracking for linear oscillatory actuator[J].,2019,23(06):63-72.[doi:10.15938/j.emc.2019.06.008]
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 直线振荡电机谐振频率跟踪控制技术研究
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
23
期数:
2019年06
页码:
63-72
栏目:
出版日期:
2019-06-15

文章信息/Info

Title:
 Strategy of resonant frequency tracking for linear oscillatory actuator
作者:
 余海涛 张涛
 ( 东南大学电气工程学院,南京210096)
Author(s):
 YU Hai-tao ZHANG Tao
 ( School of Electrical Engineering,Southeast University,Nanjing 210096,China)
关键词:
 直线压缩机 振荡电机 谐振频率跟踪 二阶广义积分 坐标变换
Keywords:
linear compressor linear oscillatory actuator resonant frequency tracking second order general integral coordinate transformations
分类号:
TM 921
DOI:
10.15938/j.emc.2019.06.008
文献标志码:
A
摘要:
 针对直线压缩机控制复杂,传统压缩机运行效率低的问题,提出一种基于二阶广义积分控制的谐振频率跟踪的直线电机控制方式( SOGI-RFTC) 。该控制方法控制行程稳定,检测位移信号x 和电流信号i,利用谐振下位移x 和电流i 相序成90°的特点,经过锁频和坐标变换,将交流信号转化为直流信号控制,经过PI 控制器实现信号的无静差跟踪控制。二阶广义积分控制器在锁相前可以滤出输入信号的采样噪声和高频干扰,提高控制器的稳定性。仿真和实验结果表明,所提出的谐振频率跟踪控制可以快速跟踪电机固有机械频率,提高系统效率,验证了理论的合理性和有效性。
Abstract:
 Linear compressor driven by linear oscillatory actuator is more efficient and easier to control than traditional rotary motor. In order to improve the efficiency of linear compressor,a method based on second order general integral resonant frequency tracking control ( SOGI-RFTC) is proposed. The steadystate displacement signal x and current signal i were sensed under the control of stroke stability. Based on theory that phase shift between actuator displacement and current is 90° when drive frequency equals to mechanical resonant frequency,the AC signal was transformed into DC signal by frequency locked loop and coordinate transformation. Then PI controller was used to achieve zero steady-state error. Besides,the second order general integral controller was adopted to filter out the sampling noise and high frequency interference of the input signal,which improves the stability of the controller. The simulation and experimental results show that the proposed resonant frequency tracking control can quickly track the inherent mechanical frequency of the Actuator and improve the efficiency of the system.

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备注/Memo

备注/Memo:
 收稿日期: 2017 - 03 - 14
基金项目: 国家自然科学基金( 41576096)
作者简介: 余海涛( 1965—) ,男,博士,教授,博士生导师,研究方向为直线电机分析与控制、伺服驱动、海洋能发电;
张涛( 1990—) ,女,硕士,研究方向为直线电机及其控制。
通信作者: 张涛
更新日期/Last Update: 2019-10-12