摘要
针对电机扭矩和转速波动问题,文章从电机控制系统层面提出一种谐波抑制和易于工程化的死区补偿算法相结合的方法,降低控制系统中相电流谐波,优化电流正弦度,进而优化电机扭矩和转速波动。首先,建立谐波抑制和死区补偿的数学模型进行理论分析,提取补偿电压的数学模型。然后,通过Matlab Simulink仿真软件,进行对比仿真分析,获得电机控制系统中确实存在扭矩和转速波动现象,且谐波抑制和死区补偿多重补偿策略可以起到优化电流和减少波动的效果。最后,试验验证发现补偿后的控制系统中电机扭矩波动和转速波动得到了明显的优化,提升了牵引系统稳定性。
In order to solve the problem of motor torque and speed fluctuation,this paper proposes a method combining harmonic suppression and easy-to-engineer dead band compensation algorithm based on motor control system,so as to reduce the phase current harmonics in the control system,optimize the current sinusoid,and thus optimize the motor torque and speed fluctuation.Firstly,the mathematical model of harmonic suppression and dead band compensation is established for theoretical analysis,and the mathematical model of compensation voltage is extracted.Then,through the Matlab Simulink simulation software,the comparative simulation analysis shows that there are indeed torque and speed fluctuations in the motor control system,and the multiple compensation strategies of harmonic suppression and dead band compensation can optimize the current and reduce the fluctuation.Finally,the experimental verification shows that the torque and speed fluctuation of the motor in the compensated control system are significantly optimized,and the stability of the traction system is improved.
作者
矫利业
曹君
李梁京
伊建辉
王鹏
田久东
JIAO Liye;CAO Jun;LI Liangjing;YI Jianhui;WANG Peng;TIAN Jiudong(CRRC Qingdao Industrial Institute Co.,Ltd.,Qingdao,Shandong 266109,China)
出处
《机车车辆工艺》
2025年第1期1-7,共7页
Locomotive & Rolling Stock Technology
关键词
扭矩波动
转速波动
死区补偿
谐波抑制
torque fluctuation
speed fluctuation
dead zone compensation
harmonic suppression
