中文摘要：

论文提出一种针对单边直线感应电机（single-sided linear induction motors,SLIMs）的基于非线性负载扰动观测器的预测电流补偿控制策略。首先考虑到SLIM特有的动态端部效应的影响,通过跟踪补偿M-轴电流分量来维持次级磁链T-轴分量的恒定,而后在一次线性条件下,引入一阶离散泰勒级数对速度状态进行预测。另一方面将电机气隙变化与各类边端效应对电机推力输出的影响统一为系统受到负载扰动的影响,而应对此扰动,通过非线性扰动观测器,在预测前向控制通路增加了实时补偿控制量,借此提升整个预测控制系统的鲁棒特性。最后实验对所提算法的有效性进行了验证。

英文摘要：

This paper presented a predictive current compensation control for a single-sided linear induction motor （SLIM）with nonlinear disturbance observers （NDOB）. Firstly, to maintain T-axes secondary component flux linkage constant with consideration of the special dynamical eddy-effects （DEE） of the SLIM, a instantaneously tracing compensation of M-axes current components was analyzed. Secondly, a predictive current scheme based on Taylor-discretization algorithm for promoting speed dynamical response and minimizing speed stable ripple was proposed. Finally, to deal with the external load coupled uncertainties and measured errors of unavoidable feedback control variables, i.e., current and speed, an effective kind of nonlinear disturbance observer was employed to estimate and feed forward compensate these load vibrations, so the robustness of the control system could be guaranteed. Experimental verification of the feasibility of the proposed predictive current compensation for a SLIM control system is performed.