内置式永磁同步电机宽速域模糊滑模控制  

Wide⁃speed⁃range Fuzzy Sliding Mode Control for Interior Permanent Magnet Synchronous Motor

作　　者：王宇宁 杨成顺[1] 黄宵宁[1] WANG Yuning;YANG Chengshun;HUANG Xiaoning(School of Electric Power Engineering,Nanjing Institute of Technology,Nanjing 211167,Jiangsu,China)

机构地区：[1]南京工程学院电力工程学院,江苏南京211167

出　　处：《电气传动》2024年第12期16-24,共9页Electric Drive

基　　金：国家自然科学基金(61973140)。

摘　　要：针对传统内置式永磁同步电机控制策略抗干扰性能较差、参数摄动和控制精度的问题,提出了基于超扭曲扰动观测器的模糊滑模控制策略,实现了内置式永磁同步电机的宽速域运行,同时进一步提高了转速跟踪精度和系统的抗干扰能力。首先,通过最大转矩电流比与梯度下降法弱磁控制相结合拓宽了调速范围。其次,基于超扭曲算法(STA)设计扰动观测器,提升了系统的抗干扰能力。同时,为了应对Backstepping算法中的微分膨胀问题,使用二阶滑模微分器对虚拟控制率作逼近处理。采用模糊逻辑系统对内置式永磁同步电机模型中的非线性部分进行逼近,降低电机参数摄动对控制性能的影响。最后,通过应用Lyapunov理论,验证了所提控制策略的稳定性。通过Matlab/Simulink平台进行仿真,验证了在所提控制策略下内置式永磁同步电机具有更优异的宽速域动态性能和鲁棒性。In response to the poor disturbance rejection performance and issues of parameter perturbation and control precision in traditional control strategies for interior permanent magnet synchronous motors(IPMSM),a fuzzy sliding mode control strategy based on the super-twisting disturbance observer was proposed.This strategy enables wide-speed-range operation of IPMSM,and further improves rotational speed tracking precision and the system's disturbance rejection capabilities.Firstly,the speed control range was broadened by combining maximum torque per ampere ratio with the gradient descent method for weak magnetic control.Secondly,the super-twisting algorithm(STA)was utilized to design a disturbance observer,thus enhancing the system's ability to resist disturbances.In addition,to address the derivative explosion problem in Backstepping control,a second-order sliding mode differentiator was used to approximate the virtual control rate.The fuzzy logic system was adopted to approximate the nonlinear part in the model of IPMSM,reducing the impact of motor parameter perturbation on control performance.Finally,the stability of the proposed control strategy was confirmed by applying Lyapunov theory.Through simulation on the Matlab/Simulink platform,it was verified that under the control strategy proposed,IPMSM demonstrate superior wide-speed-range dynamic performance and robustness.

关 键 词：电动汽车 内置式永磁同步电机 模糊控制 扰动观测器 

分 类 号：TM341[电气工程—电机] TP273[自动化与计算机技术—检测技术与自动化装置]