[1]刘 建,杨建飞,吴华仁,等.一种新型的永磁同步电机直接转矩控制方法[J].南京师范大学学报(工程技术版),2014,14(04):017.
　Liu Jian,Yang Jianfei,Wu Huaren,et al.A Novel Direct Torque Control Method for PermanentMagnet Synchronous Motor[J].Journal of Nanjing Normal University(Engineering and Technology),2014,14(04):017.
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一种新型的永磁同步电机直接转矩控制方法
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南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
14卷
期数:
2014年04期
页码:
017
栏目:
出版日期:
2014-12-31

文章信息/Info

Title:
A Novel Direct Torque Control Method for PermanentMagnet Synchronous Motor
作者:
刘 建; 杨建飞; 吴华仁; 华心怡; 郭爱琴
(1.南京师范大学电气与自动化工程学院,江苏 南京 210042)(2.南京师范大学江苏省三维打印装备与制造重点实验室,江苏 南京 210042)
Author(s):
Liu Jian; Yang Jianfei; Wu Huaren; Hua Xinyi; Guo Aiqin
(1.School of Electrical and Automation Engineering,Nanjing Normal University,Nanjing 210042,China)(2.3D Printing Equipment and Manufacturing Key Lab of Jiangsu Province,Nanjing 210042,China)
关键词:
永磁同步电机; 功率因数; 无功电流; 直接转矩控制
Keywords:
permanent magnet synchronous motor; power factor; reactive current; direct torque control
分类号:
TM761
文献标志码:
A
摘要:
永磁同步电机传统直接转矩控制方法采用磁链和转矩双闭环结构实现对电机转矩的直接控制.由于控制过程中要保持磁链幅值恒定,不仅限制了电机的动态性能,同时,为了实现恒定的定子磁链幅值,还需要额外的无功电流,降低了电机功率因数,增加了系统损耗.本文从转矩优化和无功电流优化控制的角度出发,提出了一种新型的直接转矩控制方法,控制过程中直接根据转矩控制要求选择电压矢量,不要求磁链幅值恒定,对转子位置要求不高,控制过程中能够实现磁链幅值的动态调整,电机在具有良好动态性能的同时具有较高的功率因数.仿真结果验证了理论分析的正确性和方法的可行性.
Abstract:
The double closed loop structure of stator flux linkage and torque is used to realize direct control of motor torque in traditional direct torque control of permanent magnet synchronous motor.Because flux amplitude is kept as constant,dynamic performance of the motor is not only restricted,but also reactive current is increased.When reactive current is increased,motor power factor is reduced and system loss is increased.From the points of perspective of optimal control of the torque and reactive current,a novel direct torque control method is presented in this paper.Voltage vectors are merely selected according to the requirement of the torque control in the period of control.In the control process,stator flux amplitude can be dynamically adjusted and rotor position is less demanded.So dynamic performance of the motor and power factor are significantly improved.The correctness and feasibility of the proposed method are verified by the simulation results.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2014-10-10.
基金项目:国家自然科学基金(61273243、51407095)、江苏省高校自然科学基金(12KJB470011、13KJB590001).
通讯联系人:杨建飞,博士,讲师,研究方向:电机控制与三维打印.E-mail:yjfsmile@njnu.edu.cn
更新日期/Last Update: 2014-12-31