摘要
针对永磁同步电机无传感器控制系统中调速存在超调、转子位置和转速估计存在误差和抖动的问题,在超螺旋滑模观测器(STSMO)的基础上,提出搭载新型滑模趋近律的滑模速度控制器的方法。该方法采用积分滑模面代替传统的滑模面,以提高速度误差值收敛到零的速度,将系统状态变量相关量引入趋近律中,增强系统的抗干扰能力。仿真结果表明,在电机带载启动、负载突变等情况下,提出的控制方法能够准确观测转子位置及转速,不仅能够克服转速超调的问题,而且能够有效抑制转矩和三相电流的脉动、减小滑模的固有抖振,具有良好的抗干扰能力和鲁棒性。
Aiming at the problems of speed regulation overshoot,rotor position and speed estimation errors and jitter in the sensorless control system of permanent magnet synchronous motor,a new sliding mode reaching law was proposed based on the STSMO(super spiral sliding mode observer).The method of the sliding mode speed controller,which used the integral sliding mode surface to replace the traditional sliding mode surface,improved the speed of the speed error value converging to zero,introduced the system state variable correlation into the reaching law,and enhanced the resistance of the system.interference ability.Simulation results showed that the proposed control method could accurately observe the rotor position and speed under the conditions of motor startup with load and load sudden change,which could not only overcome the problem of speed overshoot,but also effectively suppress the torque and three-phase current pulsation,The inherent chattering of sliding mode was reduced,and it had good anti-interference ability and robustness.
作者
唐娟娟
周骅
张正平
赵麒
TANG Juanjuan;ZHOU Hua;ZHANG Zhengping;ZHAO Qi(School of Big Data and Information Engineering,Guizhou University,Guiyang 550025,China)
出处
《探测与控制学报》
CSCD
北大核心
2023年第2期115-121,共7页
Journal of Detection & Control
基金
国家自然科学基金联合基金重点支持项目(U1836205)。
