基于负载转矩观测器的永磁同步电机改进线性自抗扰控制方法
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北京信息科技大学现代测控技术教育部重点实验室 北京 100192

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TM341;TN60

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Improved linear active disturbance rejection control of PMSM based on load torque observation
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Key Laboratory of Modern Measurement & Control Technology, Ministry of Education, Beijing Information Science and Technology University, Beijing 100192, China

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    摘要:

    在实际应用中,自抗扰控制器中的扩张状态观测存在面对大幅变化的负载扰动时,无法保证估计补偿精度的问题。针对这一问题,提出了将负载转矩观测器观测到的负载扰动补偿到扩张状态观测器中来提高估测补偿精度的方案,并且使用电机中可以直接测量的角度数据作为已知量来设计负载转矩观测器,避免了将转速作为已知量引入微分误差的问题。仿真和实验结果表明,改进后的线性自抗扰控制器相比于传统线性自抗扰控制器,转速最大调量降低了7.24%,在保证了调节速度的同时,具有更优良的抗负载扰动性能。

    Abstract:

    In practical applications, the expansion state observation in self disturbance rejection controllers faces the problem of inability to guarantee estimation and compensation accuracy when faced with significantly changing load disturbances. A scheme is proposed to improve the estimation and compensation accuracy by compensating the load disturbance observed by the load torque observer to the extended state observer. The load torque observer is designed using angle data that can be directly measured in the motor as a known quantity, avoiding the problem of introducing differential errors by using the speed as a known quantity. The simulation and experimental results show that the improved linear active disturbance rejection controller reduces the maximum speed adjustment by 7.24% compared to the traditional linear active disturbance rejection controller, and has better anti load disturbance performance while ensuring the adjustment speed.

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袁浩仁,周福强,孙江宏.基于负载转矩观测器的永磁同步电机改进线性自抗扰控制方法[J].电子测量技术,2025,48(9):36-43

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  • 在线发布日期: 2025-05-23
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