初级绕组分段式永磁直线电机无传感器驱动系统的基础研究

项目名称： 初级绕组分段式永磁直线电机无传感器驱动系统的基础研究

项目编号： No.51307028

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 电工技术

项目作者： 刘家曦

作者单位： 哈尔滨工业大学

项目金额： 25万元

中文摘要： 本项目通过研究初级绕组分段永磁直线电机运行中的规律性特征，系统地解决无传感技术在多段初级电机中应用的基础问题。研究分段永磁电机中端部、半开域等特殊电磁场问题对参数估计的影响；对具有非周期参数的特种电机建模方法开展研究，构建绕组分段式永磁直线电机系统精确的数学模型；基于预测控制理论，结合凸极特性研究长行程电机宽调速范围运行的位置检测方法，重点解决以推力矢量合成为输入变量的段间过渡区域无传感技术的基础问题，探讨电磁参数摄动、负载扰动等条件对位置预估精度的影响，提高无传感技术的鲁棒性；研究分段供电模式下的电流高动态驱动控制方法，探讨直流母线电压限制和逆变器电流限制对系统性能的影响。最后搭建系统测试平台，进行相关的实验验证。上述研究成果将为新型高速高可靠性电磁推进装置的开发提供理论依据和技术支撑。

中文关键词： 无传感器控制；绕组分段永磁直线电机；扰动观测器；滑模观测器；预测控制

英文摘要： In this project, the fundamental problem of sensorless drive and control will be solved systematically via studying the regularity of the permanent magnet linear motor with segment winding(SW-PMLM).The effect of parameters of the end and the half-open magnetic field on SW-PMLM is studied. The precise mathematical model is established on the basis of the research on SW-PMLM modeling method of non-periodic parameters; The mover position is estimated by the method based on the predictive control theory, combined with the characteristics of saliency in the wide speed range. The fundamental problem is solved by studying the sensorless control in the pass-through section based on the taking thrust vector synthesis as the input variable. In order to improve the robustness of the mover position estimation, the accuracy of the estimated position is analyzed under the variation of the parameters on the SW-PMLM and the load disturbance.The method of current drive and control is studied to improve the current bandwidth and reduce the thrust ripple. The impact of the DC bus voltage limit and the current of the inverter limit is discussed to improve the system performance.Finally, the system test platform will be built, and experimental verification will be carried out. The above research will provide a theoretical basis and

英文关键词： Sensorless control；PWS-PMLSM；disturbance observer；sliding mode observer；predictive control