摘要
与永磁球形电机不同,磁阻型球形电机的设计灵感来源于开关磁阻电机,双凸极结构的存在会导致它产生较大的转矩脉动,从而影响电机的稳定运行。为了抑制磁阻型球形电机的转矩脉动,从控制角度出发,提出一种恒转矩控制方法,通过对其自旋、倾斜和任意方向运动的分析研究,实现了磁阻型球形电机在自旋、倾斜和任意方向运动时的转矩脉动抑制。主要工作如下:首先,分析磁阻型球形电机的运动过程与通电情况,提出一种求解驱动电流的方法——转矩电流拟合多项式法;然后利用恒转矩控制方式实现了对磁阻型球形电机自旋、倾斜和任意方向运动时的转矩脉动抑制;最后,分别通过仿真和试验对不同位置的转矩脉动抑制进行了验证,验证结果表明了所研究方法的有效性。
Unlike permanent magnet spherical motors,the design inspiration for reluctance spherical motors comes from switched reluctance motors.The presence of a doubly salient structure can cause significant torque ripple,thereby affecting the stable operation of the motor.In order to suppress the torque ripple of a reluctance spherical motor,a constant torque control method is proposed from a control perspective.By analyzing and studying its spin,tilt,and arbitrary direction motion,the torque ripple suppression of a reluctance spherical motor during spin,tilt,and arbitrary direction motion is achieved.The main work of this article is as follows.Firstly,the motion process and energization situation of a reluctance spherical motor are analyzed,and a method for solving the driving current—torque current fitting polynomial method is proposed.Then,the constant torque control method is used to suppress torque ripple of the reluctance spherical motor during spin,tilt,and any direction motion.Finally,the torque ripple suppression at different positions is verified through simulation and experiments,and the verification results show the effectiveness of the proposed method.
作者
冯友亮
王群京
鞠鲁峰
李国丽
周睿
FENG Youliang;WANG Qunjing;JU Lufeng;LI Guoli;ZHOU Rui(School of Electrical Engineering and Automation,Anhui University,Hefei 230601;Collaborative Innovation Center of Industrial Energy-Saving and Power Quality Control,Anhui University,Hefei 230601;National Engineering Laboratory of Energy-Saving Motor&Control Technology,Anhui University,Hefei 230601;Power Quality Engineering Research Center,Ministry of Education,Anhui University,Hefei 230601)
出处
《电气工程学报》
CSCD
北大核心
2024年第3期228-237,共10页
Journal of Electrical Engineering
基金
国家自然科学基金(51637001)
安徽省自然科学基金面上(1908085ME168)资助项目。
关键词
磁阻型球形电机
恒转矩控制
转矩脉动抑制
有限元
多项式拟合
Reluctance spherical motor
constant torque control
torque ripple suppression
finite element
polynomial
