摘要
在机器人、航空航天、数控机床等高精度工业领域,传统基于PID调节器的永磁同步电机直接转矩控制系统不能很好地适应电机参数的变化,在磁链和转矩环节中采用滑模变结构调节器的方法又会使得系统产生抖振现象。因而为克服基于PID与滑模调节器的直接转矩控制系统鲁棒性差、转矩脉动大的问题,提出了基于模糊PID算法与超扭曲滑模算法的永磁同步电机直接转矩控制系统,利用模糊算法对电机参数不敏感的优势,在转速环节中采用了模糊PID算法,在磁链和转矩环节引入了超扭曲算法并设计了超扭曲滑模调节器。仿真结果显示,上述控制算法能够在较大范围内适应系统变化的参数,克服了单一滑模变结构控制出现的抖振现象,使永磁同步电动机控制系统动态性能与鲁棒性得以增强,满足应用于高精度伺服作业领域的需求。
In the robot,aerospace,CNC machine tools and other high-precision industrial areas,the traditional PID regulator cannot better adjust varying parameters in permanent magnet synchronized machines direct torque control system（ PMSM-DTCS）,and the method based on sliding model algorithm in flux and torque regulators has an intrinsic chattering problem. Thus,in order to overcome the weak robustness and torque ripple in PMSM-DTCS,an optimized control strategy based on fuzzy PID theory and super twisting algorithm is proposed. The speed regulator takes the advantage of insensitivity to motor of fuzzy PID theory. Furthermore,an effective algorithm named super twisting is introduced and incorporated with the sliding model algorithm for flux and torque regulator. Simulation results show that the proposed control method can satisfy the time-varying parameters of motor,and also eliminate the chattering phenomenon when just using sliding model algorithm. It is indicated that this control system has a good dynamics property and robustness,and can satisfy the need of high-precision industrial applications.
作者
吴健
戴跃洪
唐鹏
WU Jian;DAI Yue-hong;TANG Peng(University of Electronic Science and Technology of China,School of Aeronautics and Astronautics,Chengdu Sichuan 611731,China~)
出处
《计算机仿真》
北大核心
2018年第11期329-334,共6页
Computer Simulation
基金
装备发展部预研基金(30103090201)
