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首页> 外文期刊>Mechatronics, IEEE/ASME Transactions on >Modeling and Compensation of Ripples and Friction in Permanent-Magnet Linear Motor Using a Hysteretic Relay
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Modeling and Compensation of Ripples and Friction in Permanent-Magnet Linear Motor Using a Hysteretic Relay

机译：磁滞继电器在永磁直线电机中波纹和摩擦的建模与补偿

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摘要

The tracking performance of a motion system based on a permanent-magnet linear motor (PMLM) is greatly affected by nonlinearities present, such as force ripples and frictions. Although various identification and compensation schemes haven been reported for the PMLM, to the authors’ best knowledge, no direct and unified modeling method for force ripples and friction is available till now. This paper proposes a new method to identify various linear and nonlinear parameters in PMLM, using a hysteretic relay feedback. Dual-input describing functions are imported to leverage on the biased limit cycles generated by even nonlinearities due to force ripple. The explicit formulae, derived from the harmonic balance condition, enable direct computation of model parameters with a minimum number of relay experiments. Simulation results and real-time experiments will be presented to verify the practical appeal of proposed method in precision motion control.
机译：基于永磁线性电动机（PMLM）的运动系统的跟踪性能受存在的非线性（例如力波动和摩擦）的影响很大。尽管已经针对PMLM报道了各种识别和补偿方案，但据作者所知，到目前为止，尚没有直接和统一的力波动和摩擦建模方法。本文提出了一种利用滞后继电器反馈来识别PMLM中各种线性和非线性参数的新方法。导入双输入描述函数以利用由力波动引起的甚至由非线性产生的偏置极限周期。从谐波平衡条件得出的显式公式使得可以使用最少的继电器实验直接计算模型参数。仿真结果和实时实验将被证明，以验证该方法在精密运动控制中的实用性。

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