摘要
永磁同步电机具有功率密度高、转矩惯量比大、动态响应速度快的优点,但由于外部扰动变化剧烈或参数失配,该系统会导致电流波动增大与动态性能下降。为改善这一问题,研究引入非线性扩张状态观测器以增强扰动估计能力。所提控制器在稳态工况下的d轴与q轴电流跟踪误差分别低于0.01 A,响应时间均控制在10 ms以内。研究结果表明,该控制方法能够兼顾预测性能与抗扰能力,为未来在复杂工况下电机驱动系统的稳定性与高精度控制提供了可行路径。
Permanent magnet synchronous motors offer advantages such as high power density,large torque-to-inertia ratio,and fast dynamic response.However,due to severe external disturbances or parameter mismatches,the system may experience increased current fluctuations and degraded dynamic performance.To address this issue,this study introduces a nonlinear extended state observer to enhance disturbance estimation capabilities.The proposed controller achieves current tracking errors of less than 0.01 A for both the d-axis and q-axis under steady-state conditions,with response times controlled within 10 ms.The results demonstrate that this control method effectively balances predictive performance and disturbance rejection capability,providing a feasible approach for achieving stability and high-precision control of motor drive systems under complex operating conditions.
作者
许强
XU Qiang(College of Mechanical and Automotive Engineering,Anhui Vocational and Technical College of Water Resources and Hydropower,Hefei 231603,China)
出处
《佳木斯大学学报(自然科学版)》
2025年第10期74-77,共4页
Journal of Jiamusi University:Natural Science Edition
基金
2022年度省级质量工程项目(2022zygzsj029)
2023年安徽省中青年访学研修项目(JNFX2023150)。
关键词
永磁同步电机
无模型预测控制
非线性扩张状态观测器
数值仿真建模
电机驱动系统
permanent magnet synchronous motor
model-free predictive control
nonlinear extended state observer
numerical simulation modeling
motor drive system
