Identification and adaptive robust precision motion control of systems with nonlinear friction
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Both accurate system identification and high-performance controller design are necessary for precision motion systems. This paper first considers the unavoidable issue of nonlinear friction effect on traditional frequency identification widely used by practicing engineers and simultaneously presented an improved identification method with nonlinear friction compensation, which has two freedoms to guarantee an accurate estimation of the frequency response of the underlying linear dynamics in practice. The effectiveness of the proposed identification method is verified through different experimental platforms, which also shows the applicability of the proposed method to different kinds of dynamics subjected to nonlinear friction. An adaptive robust controller (ARC) is then synthesized to obtain a guaranteed robust performance in the presence of various uncertainties. Furthermore, with the obtained identification results, certain gain tuning rules are given in the paper to help engineers choose proper ARC controller gains quickly to maximize the achievable control performance in practice. Comparative experimental results obtained show the excellent tracking performance of the proposed ARC algorithm, which also validates the practical significance of the proposed frequency identification method.
KeywordsNonlinear friction effect Frequency identification Adaptive robust control Gain tuning rules
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Conflict of interest
The authors declare that they have no conflict of interest.
- 7.Takemura T., Fujimoto, H.: Simultaneous identification of linear parameters and nonlinear rolling friction for ball screw driven stage. In: Proceedings of IEEE Annual Industrial Electronics Society Conference, pp. 3424–3429 (2011)Google Scholar
- 19.Sun, Z., Zhang, G., Yang, J., Zhang, W.: Research on the sliding mode control for underactuated surface vessels via parameter estimation. Nonlinear Dyn. 91(2), 1163C1175 (2017)Google Scholar
- 27.Yao, B.: Advanced motion control: from classical PID to nonlinear adaptive robust control. In: 11th IEEE International Workshop Advanced Motion Control, pp. 815-829 (2010)Google Scholar
- 35.Li, C., Chen, Z., Yao, B., Zhu, X., Liu, H.: Modeling, identification, and adaptive robust motion control of voice-voil motor driven stages. ASME Dynamic Systems and Control Conference, pp. V001T14A002 (2013)Google Scholar
- 37.Li, C., Yao, B., Wang, Q.: Modeling and synchronization control of a dual drive industrial gantry stage. IEEE/ASME Transactions on Mechatronics, (2017)Google Scholar
- 39.Li, C., Yao, B., Zhu, X.: Analysis and compensation of nonlinear friction effect on frequency identification. In: Proceedings of IEEE Annual Industrial Electronics Society Conference, pp. 4453–4458 (2015)Google Scholar