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.

本计画的目的是针对以永久磁铁为动子的直线电磁作动器进行无位置传感器控制。这种类型的致动器在定子中容纳串联连接的两个线圈，其中电流具有相反的方向，并且动子是夹在铁磁材料的两个极靴之间的盘形永磁体。由于它们的双向力特性，这些致动器对于位置控制应用非常有益。由于安装位置传感器的额外成本和复杂性，本项目的目的是这些执行器的位置估计和控制。通过估计致动器的位置相关磁特性来估计位置。由于磁特性中固有的对称性，至少两种估计方法将不得不被组合以实现在全冲程范围中的位置估计，从而产生要解决的复杂且有趣的研究问题。