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Identifying Thermal Dynamics for Precision Motion Control ?

机译:识别精密运动控制的热动力学

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Thermal-induced deformations are becoming increasingly important for the control performance of precision motion systems. The aim of this paper is to identify the underlying thermal dynamics in view of precision motion control. Identifying thermal systems is challenging due to large transients, large time scales, excitation signal limitations, large environmental disturbances, and non-linear behavior. An approach for non-parametric identification is developed that is particularly suitable for thermal and mechanical aspects in mechatronic systems. In particular, prior knowledge of several domains can be directly specified. Additionally, the non-parametric model is used as a basis for parameter estimation of a grey-box model. The presented methods form a complete framework that facilitates the implementation of advanced control techniques and error compensation strategies by providing high-fidelity models, enabling increased accuracy and throughput in high precision motion control.
机译:热引起的变形对于精密运动系统的控制性能变得越来越重要。本文的目的是根据精密运动控制来识别潜在的热动力学。由于大的瞬态,大的时间尺度,激励信号限制,大的环境干扰和非线性行为,识别热系统具有挑战性。开发了一种非参数识别方法,该方法特别适用于机电系统中的热和机械方面。特别地,可以直接指定几个领域的先验知识。另外,非参数模型被用作灰箱模型的参数估计的基础。所提出的方法形成了一个完整的框架,该框架通过提供高保真模型来促进高级控制技术和误差补偿策略的实施,从而在高精度运动控制中实现了更高的精度和吞吐量。

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