摘要
为进一步提高永磁同步电机(permanent magnet synchronous motor,PMSM)控制系统的稳定性与抗扰性等,设计了一种PMSM模型预测速度控制器。根据PMSM转矩与运动方程,搭建PMSM速度预测模型,并借助二次型性能指标构造评价函数,通过滚动优化得出最终的控制律;同时,采用分数阶积分法进行负载扰动补偿,并利用旗鱼算法优化评价函数中的权值系数。通过MATLAB/Simulink仿真,得到的结果与PI速度控制相比,采用设计的模型预测速度控制器减小了PMSM转速、转矩超调,降低了在外界因素干扰下转速、转矩的波动量,缩小了转速、转矩稳态误差。据此推出,与传统PI控制相比,所设计的模型预测速度控制器可有效改善PMSM系统的稳态精度、抗扰能力与收敛能力。
In order to improve the stability and immunity of permanent magnet synchronous motor(PMSM)control system,a PMSM model predictive speed controller was designed.According to the PMSM torque and motion equation,the PMSM speed prediction model was built,and the evaluation function was constructed by using the quadratic performance index,and the final control law was obtained by rolling optimization.At the same time,the fractional integral method was used to compensate the load disturbance,and the sailfish algorithm was used to optimize the weight coefficients in the evaluation function.Finally,through MATLAB/Simulink simulation,the results are as follows:compared with PI speed control,the designed model predictive speed controller reduces the PMSM speed and torque overshoot,reduces the fluctuation of speed and torque under the interference of external factors,and reduces the steady-state error of speed and torque.According to this,compared with traditional PI control,the proposed model predictive speed controller can effectively improve the steady-state accuracy,disturbance rejection ability and convergence ability of PMSM system.
作者
吴卫珍
张扬
马子龙
WU Wei-zhen;ZHANG Yang;MA Zi-long(Experimental Training Center,Jiangxi University of Engineering,Xinyu 338000,China;School of Mechanical Engineering,Hubei University of Technology,Wuhan 430068,China;Hubei Key Laboratory of Modern Manufacturing Quality Engineering,Hubei University of Technology,Wuhan 430068,China)
出处
《组合机床与自动化加工技术》
北大核心
2023年第4期112-115,共4页
Modular Machine Tool & Automatic Manufacturing Technique
基金
国家自然科学基金(51975191)
江西省教育厅科学技术研究项目(GJJ202907)。
关键词
永磁同步电机
模型预测
扰动补偿
旗鱼算法
permanent magnet synchronous motor
model predictive
disturbance compensate
sailfish algorithm