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On the compensation of incremental encoder imperfections for motion control: a DC motor case-study ?

机译:关于用于运动控制的增量编码器缺陷的补偿:直流电动机案例研究

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We address the problem of rotational velocity and acceleration estimation from incremental encoders in the presence of sensor imperfections. In the area of motion control, measurements of shaft velocity and acceleration are often affected by large disturbances with a period of one revolution that arise from sensor imperfections and degrade the performance of most closed-loop control algorithms. We present an algorithm to identify and remove such periodic perturbations online, without the need of error compensation look-up tables, and without assuming constant velocity. The proposed algorithm is evaluated via open-loop experimental tests, and its implementation in closed-loop control applications is investigated via numerical simulations through a DC motor case-study.
机译:我们解决了传感器不完善时增量编码器的旋转速度和加速度估算问题。在运动控制领域,轴速和加速度的测量通常受到传感器干扰缺陷引起的大干扰的影响,周期为一圈,这会降低大多数闭环控制算法的性能。我们提出了一种在线识别和消除这种周期性扰动的算法,而无需误差补偿查询表,并且无需假设恒定速度。通过开环实验测试对提出的算法进行了评估,并通过直流电动机的案例研究,通过数值模拟研究了其在闭环控制应用中的实现。

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