MA Mingna, YUAN Supeng, SUN Chen, et al. Speed Cooperative Control Strategy of MM-PMLSM Based on Tracking and Synchronization Adaptive Weights[J]. 2025, 45(19): 7755-7765.
DOI:
MA Mingna, YUAN Supeng, SUN Chen, et al. Speed Cooperative Control Strategy of MM-PMLSM Based on Tracking and Synchronization Adaptive Weights[J]. 2025, 45(19): 7755-7765. DOI: 10.13334/j.0258-8013.pcsee.241576.
Speed Cooperative Control Strategy of MM-PMLSM Based on Tracking and Synchronization Adaptive Weights
驱动柔性化生产线的多动子永磁直线同步电机(multi-mover permanent magnet linear synchronous motor,MM-PMLSM)常工作在变速或变载荷的工况中,且要求多个动子能够精准地完成协同运动指令。在速度协同控制器的设计中,若忽略动态工况的影响,将速度跟踪与同步误差控制信号无差别地叠加后送入电流环,不明确的控制主体会影响协同控制的性能。基于此,该文提出采用双速度控制器的基本架构,并行设计每个动子的跟踪控制器和同步控制器,在同步控制器中引入考虑工况状态的权重因子,根据同步补偿信号的幅值和变化率来自动更新权重因子,构建出模糊自适应调节器,由实时工况状态来调整跟踪和同步控制分量的配比,形成准确的速度误差控制模型。该文主要工作如下:首先,基于MM-PMLSM的数学模型,探讨速度跟踪控制器和同步控制器的并行设计方法及权重因子的作用机理;随后,分析不同工况状态下同步补偿信号的有效特征,基于模糊自适应理论探究权重因子的自动更新方法;最后,建立MM-PMLSM的系统动态仿真与实验测试平台,对比并验证所提控制策略的有效性。
Abstract
The multi-mover permanent magnet linear synchronous motor (MM-PMLSM) that drives flexible production lines often operates in variable speed or load modes
and it requires multiple movers to obey collaborative motion orders accurately. Suppose the influence of dynamic operating modes is ignored in the design of collaborative controllers. In that case
the speed tracking and synchronization error control signals are superimposed indiscriminately and fed into the current loop. Further
the unclear control subject will inevitably affect the effectiveness of speed collaborative control. Based on this
this paper proposes a basic scheme using a dual-speed controller. The tracking controller and synchronization controller of each mover are designed in parallel. And then the weight factor
considering operating modes
is introduced into the synchronization controller. Based on the amplitude and change rate of the synchronous compensation signal
the weight factor is automatically updated by using a fuzzy adaptive regulator. Real-time operating conditions adjusted the ratio of tracking and synchronous control components. So an accurate speed error control model is established. The main research work is as follows: First
based on a mathematical model of MM-PMLSM
the parallel design details of speed tracking and synchronization controller are discussed. Simultaneously
the mechanism of the weight factor is presented. Then
the characteristics of synchronous compensation signals in different operating modes are analyzed. Meanwhile
the automatic updating method of weight factors is studied based on fuzzy adaptive. Finally
system dynamic simulation and experiment platforms are carried out to compare and verify the effectiveness of the proposed control strategy.