基于模糊切换滑模的永磁同步电机调速系统设计  

Design of permanent magnet synchronous motor speed control system based on fuzzy switching sliding mode algorithm

作　　者：朱其新 李旭阳 朱永红 ZHU Qixin;LI Xuyang;ZHU Yonghong(School of Mechanical Engineering,SUST,Suzhou 215009,China;Jiangsu Province Intelligent Coexisting-Cooperative-Cognitive Robot Engineering Research Center,Suzhou 215009,China;Suzhou Key Laboratory of Coexisting-Cooperative-Cognitive Robot Technology,Suzhou 215009,China;School of Mechanical and Electronic Engineering,Jingdezhen Ceramic University,Jingdezhen 333001,China)

机构地区：[1]苏州科技大学机械工程学院,江苏苏州215009 [2]江苏省智能共融机器人工程研究中心,江苏苏州215009 [3]苏州市共融机器人技术重点实验室,江苏苏州215009 [4]景德镇陶瓷大学机电工程学院,江西景德镇333001

出　　处：《苏州科技大学学报（自然科学版）》2024年第4期120-127,共8页Journal of Suzhou University of Science and Technology（Natural Science Edition）

基　　金：国家自然科学基金项目(51875380,62063010);苏州市科技计划(基础研究)项目(SJC2023002)。

摘　　要：针对永磁同步电机(permanent magnet synchronous motor,PMSM)受扰动时存在的转速波动和不稳定问题,提出了一种基于切换滑模面和模糊增益趋近律的滑模速度控制方法。首先,采用了切换滑模面,结合了积分滑模面中不同积分项系数的优点,提升了系统初段的响应速度并降低了超调量;其次,在趋近律内加入幂指项,利用幂指函数的数学特性提升系统的综合性能;然后,使用模糊算法改进趋近律,以系统状态变量作为模糊控制输入,趋近律增益参数作为模糊控制输出,实现了依据系统状态对趋近速度大小的自适应调整,提高了系统抗扰动能力;最后,使用李雅普诺夫稳定性判据证明了该控制系统的稳定性。在MATLAB/Simulink仿真环境下将该控制策略与传统滑模控制策略进行了仿真对比,仿真结果表明:采用改进控制策略的系统响应速度更快、抑制外部扰动的能力更强。A sliding mode speed control method based on switching sliding mode surface and fuzzy gain reaching law was proposed to solve the problem of permanent magnet synchronous motor(PMSM)speed fluctuation and instability under disturbance.Firstly,the switching sliding mode surface was used to improve the response speed and reduce the overshoot by combining the advantages of different integral coefficients in the integrated sliding mode surface.Secondly,a power index was added into the reaching law,and the comprehensive performance of the system was improved by using the mathematical properties of the power index function.Then,a fuzzy algorithm was used to improve the approach law.The state variable of the system was taken as the fuzzy control input,and the gain parameter of the approach law was taken as the fuzzy control output.The adaptive adjustment of the approach velocity was realized according to the state of the system,and the anti-disturbance ability of the system was improved.Finally,Lyapunov stability criterion was used to prove the stability of the control system.The control strategy was compared with the traditional sliding mode control strategy in MATLAB/Simulink environment.The simulation results show that the system using the improved control strategy has faster response speed,stronger ability to suppress external disturbance.

关 键 词：永磁同步电机 矢量控制 切换滑模面 模糊算法 调速系统 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]