|本期目录/Table of Contents|

[1]王斌,王跃,王兆安. 无速度传感器的永磁同步电机无差拍直接转矩控制方法[J].电机与控制学报,2014,18(06):42-49.
 WANG Bin,WANG Yue,WANG Zhao-an. Deadbeat direct torque control of permanent magnetsynchronous motor without speed sensor[J].,2014,18(06):42-49.
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 无速度传感器的永磁同步电机无差拍直接转矩控制方法(PDF)
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
18
期数:
2014年06
页码:
42-49
栏目:
出版日期:
2014-06-28

文章信息/Info

Title:
 Deadbeat direct torque control of permanent magnet
synchronous motor without speed sensor
作者:
 王斌 王跃 王兆安
 1. 西安高压电器研究院有限责任公司,陕西西安710075; 2. 西安交通大学电气工程学院,陕西西安710049
Author(s):
 WANG Bin WANG Yue WANG Zhao-an
 1. Xi’an High Voltage Apparatus Research Institute Co. ,Ltd. ,Xi’an 710075,China;
2. School of Electrical Engineering,Xi’an Jiaotong University,Xi’an 710049,China
关键词:
 永磁同步电机 无差拍控制 磁链与转矩脉动 转速辨识
Keywords:
 permanent magnet synchronous machine deadbeat control flux and torque ripplesspeed estimation
分类号:
-
DOI:
-
文献标志码:
A
摘要:
 针对传统永磁同步电机直接转矩控制方法中存在的转矩脉动大、开关频率不恒定等问题,
提出了一种永磁同步电机无差拍直接转矩控制方法。为了使系统工作于无速度传感器状态,提出
了一种简单实用的基于转子磁链的转速辨识方法。基于永磁同步电机的数学模型,通过计算在一
个控制周期内能同时精确补偿转矩误差和磁链误差的空间电压矢量,得出了基于磁链与转矩的无
差拍控制方法。利用转子磁链旋转速度与电机转速( 电角速度) 完全一致的特点,提出了一种简单
实用的转速辨识方法,并将此转速辨识方法与无差拍直接转矩控制方法相结合。对传统直接转矩
控制方法和提出的改进型控制方法分别进行了仿真与实验对比。分析结果表明,相对于传统直接
转矩控制方法,所提方法能够明显减小磁链与转矩脉动,并且保持了传统直接转矩控制中转矩动态
响应快的优点。转速辨识方法能够快速、准确地提供转速信号。仿真与实验结果验证了所提方法
的可行性和有效性。
Abstract:
 Aiming at the problems of the traditional direct torque control( DTC) method for permanent
magnet synchronous motor( PMSM) such as large torque ripple and variable switching frequency,a control
strategy named deadbeat direct torque control method is presented. At the same time,in order to
make the system work in the state of no speed sensor,a simple and practical method of speed identification
based on rotor flux was also presented in this paper. Based on the mathematical model of permanent
magnet synchronous motor,the space voltage vector in a control cycle which accurately compensate for
the torque error and flux error was calculated and the flux and torque was controled in deadbeat fashion.
With the principle that the rotor flux velocity and motor speed ( electric angular velocity) are completely
consistent,a simple and practical method of rotation speed identification was presented in this paper,and
the speed identification method and the deadbeat control method were combined in the proposed direct
torque control system. The traditional direct torque control method and the proposed control method were
studied in simulation and experiments. The results show that the proposed method can obviously reduce
the flux and torque ripple and keeps the advantages of fast torque dynamic response of the direct torque
control. Speed identification method can provide speed signal quickly and accurately. So the simulation
and experimental results verify the feasibility and validity of this method.

参考文献/References:

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备注/Memo

备注/Memo:
更新日期/Last Update: 2014-11-26