Sensorless Control for Linear Electromagnetic Actuators with Permanent Magnet Mover

带永磁动子的线性电磁执行器的无传感器控制

• 批准号: 418870390
• 负责人: Professor Dr.-Ing. Ralph Kennel
• 金额: --
• 依托单位: Lehrstuhl für Elektrische Antriebssysteme und Leistungselektronik (EAL)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2019
• 资助国家: 德国
• 起止时间: 2018-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/418870390?language=en
• 关键词: Sensorless; Control; Linear; Electromagnetic; Actuators

The aim of this project is sensorless control for linear electromagnetic actuators which have permanent magnets as mover. This type of actuators houses two coils in the stator connected in series where the currents have opposite directions and the mover is a disc shaped permanent magnet sandwiched between two pole shoes of ferromagnetic material. Due to their bidirectional force characteristic, these actuators are very beneficial for position control applications. Because of the additional cost and complexity of installing position sensors, the aim of this project is position estimation and control for these actuators. The position is estimated by estimating the position dependent magnetic properties of the actuator. Due to an inherent symmetry in the magnetic characteristics, at least two estimation methods would have to be combined in order to achieve position estimation in the full stroke range, yielding a complex and interesting research problem to solve.

该项目的目标是对以永磁体作为动子的线性电磁执行器进行无传感器控制。这种类型的执行器在定子中装有两个串联的线圈，其中电流具有相反的方向，动子是夹在两个铁磁材料极靴之间的盘形永磁体。由于其双向力特性，这些执行器非常有利于位置控制应用。由于安装位置传感器的额外成本和复杂性，该项目的目标是这些执行器的位置估计和控制。通过估计致动器的与位置相关的磁特性来估计位置。由于磁特性固有的对称性，至少需要结合两种估计方法才能实现全行程范围内的位置估计，从而产生了一个复杂而有趣的研究问题。