新型模块化轨道无绳电梯高有效载荷比无轭部直线电机系统关键基础问题

Ropeless elevator features less footprint, high transportation efficiency and flexible operation modes, thus has been the leading trend of the high and ultrahigh building elevator systems. This proposal presents a novel high payload ratio yokeless bilateral linear machine with modular rail for ropeless elevator direct driving systems. The proposed machine consisted of several armature units in primary which include one bigger teeth and two smaller teeth. The windings are wound around the bigger teeth leaving the two smaller teeth unwound. The secondary is only composed of series magnetic segments which are isolated mechanically with each other, thus both the primary and secondary are yokeless structure. The proposed machine has the advantages of modular structure, high utilization ratio of magnetic material, high thrust density and high payload ratio thus can be a good candidate as the direct driving linear machine of the ropeless elevator systems. This project aims to deeply investigate the fundamentals, magnetic modeling, operation mode and control schemes of the proposed machine as well as the topology design and dimensions optimization. A special structure is presented in this project in order to reduce the force ripples of the machine. Moreover, the driving systems including the optimal control schemes are considered in this project to enhance the quality of output force and efficiency and fault tolerance capability, thus providing a solid foundation to the high-performance ropeless elevator direct driving systems.

无绳电梯占用辅助建筑面积小，承载效率高，运行方式灵活，是未来城市高层和超高层建筑电梯系统的发展趋势。项目提出一种适合于无绳电梯推进系统的新型模块化轨道无轭部高有效载荷比直线磁阻电机，该电机一次侧包括多个电枢单元，每个电枢单元由一个宽电枢齿和两个窄电枢齿组成，绕组围绕宽电枢齿缠绕，二次侧由相互没有机械联系的导磁块组成，一次侧和二次侧均去除了轭部铁芯，该电机轨道模块化结构好、材料利用率高、推进力密度高、易于长轨道工程实施，具有高有效载荷比。项目以提出的直线磁阻电机为研究对象，拟对其基本理论、磁路结构、运行工况及控制策略进行系统深入研究，对电机的拓扑结构和设计参数进行最优设计，给出平抑推力尖峰抑制推进力脉动的方法，研究适合无绳电梯运行方式的驱动系统，确定最优控制策略，提升电机的力能品质，增强容错运行能力，为实现高性能无绳电梯推进系统提供可靠的技术保证。

无缆绳电梯占用辅助建筑面积小，承载效率高，运行方式灵活，是未来城市高层和超高层建筑电梯系统的发展趋势。项目提出并研究一种适合于无缆绳电梯推进系统的新型模块化轨道双边驱动高推进力密度直线磁阻电机，该电机一次侧包括多个电枢单元，每个电枢单元由一个宽电枢齿和两个窄电枢齿组成，绕组围绕宽电枢齿缠绕，二次侧（导轨）由相互没有磁联系的导磁块组成，一次侧和二次侧均省去了轭部铁芯，该电机轨道模块化结构好、推进力密度高、材料利用率高、易于长轨道工程实施，具有高有效载荷比和较强容错运行能力。 .项目以提出的直线磁阻电动机为研究对象，结合无缆绳电梯推进系统的特殊工况要求，拟对其基本理论、磁路结构、运行工况及控制策略进行系统深入研究，对电机的拓扑结构和设计参数进行最优设计，并在此基础上提出一种平抑推力尖峰抑制推进力脉动的新型结构，寻找最优硬件结构和控制算法，增强推进系统的容错运行能力，提升电机的力能品质，对样机和控制器进行设计、调试和试验，为实现高性能无缆绳电梯推进系统提供可靠的技术保证。