永磁直线同步电机自适应互补滑模控制

发布时间：2018-03-01 22:02

本文关键词： 永磁直线同步电机滑模控制互补滑模控制不确定性边界自适应控制　出处：《电机与控制学报》2017年08期 　论文类型：期刊论文

【摘要】：针对永磁直线同步电机(PMLSM)易受非线性因素影响而降低伺服系统鲁棒性的问题,提出一种自适应互补滑模控制方法。永磁直线同步电机的非线性因素包括系统参数变化、电机端部效应及外部不确定性的扰动。互补滑模控制将积分滑模面与广义误差滑模面相结合,将系统状态轨迹限定在两个面的交线上,缩短了状态轨迹达到滑模面的时间,提高了位置跟踪精度。为了进一步改善系统鲁棒跟踪性能,利用自适应控制对不确定扰动因素的上界进行估计,减小不确定因素对系统的影响,改善滑模控制的抖振现象。实验结果表明所提出的控制方法是有效可行的,自适应互补滑模控制不仅提高了系统的跟踪性能,而且更有效地抑制了不确定因素对控制系统的影响。
[Abstract]:In order to reduce the robustness of PMLSMs due to the influence of nonlinear factors, an adaptive complementary sliding mode control method is proposed for PMLSMs. The nonlinear factors of PMLSM include the variation of system parameters. The complementary sliding mode control combines the integral sliding mode surface with the generalized error sliding mode surface, and limits the state trajectory of the system to the intersection line of the two surfaces, which shortens the time when the state trajectory reaches the sliding mode surface. In order to improve the robust tracking performance of the system, adaptive control is used to estimate the upper bound of uncertain disturbance factors to reduce the influence of uncertain factors on the system. The experimental results show that the proposed control method is effective and feasible. Adaptive complementary sliding mode control not only improves the tracking performance of the system, but also improves the performance of the system. Moreover, the effect of uncertainty on the control system is more effectively suppressed.
【作者单位】：沈阳工业大学电气工程学院;
【基金】：国家自然科学基金(51175349) 辽宁省自然科学基金项目(20170540677)
【分类号】：TM341;TP273

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