论文标题
混合可调磁铁执行器：建模和设计
Hybrid Tunable Magnet Actuator: Modeling and Design
论文作者
论文摘要
对于高精度应用，首选不情愿执行器。由于线圈中的电阻损失，这种类型的执行器的准确性将在真空环境中以准静态操作模式减少。通过使用其磁力态是原位调节的软永久磁体，不需要恒定的功率来创建力，从而可以减少电阻损耗。在本文中，研究了一种新的调整方法，以减少电阻损失。通过使用历史依赖和非线性滞后模型，设计了更有效的调整算法。除此之外，通过线性化非线性力 - 升华关系，可以改善可变不情愿可调磁铁执行器的位置精度和控制简单性。这是通过使用硬永久磁体产生的偏置通量来实现的。
Reluctance actuators are preferred for high-precision applications. Due to resistive losses in the coils, the accuracy of this type of actuator will reduce in quasi-static operation mode within a vacuum environment. By using soft permanent magnets whose magnetization states are in-situ tuned, no constant power is needed to create a force and thereby the resistive losses will reduce. In this paper, a new tuning method is investigated in order to reduce the resistive losses. By using a history-dependent and non-linear hysteresis model, a more efficient tuning algorithm is designed. Besides this, the position accuracy and control simplicity of a variable reluctance tunable magnet actuator are improved by linearizing the non-linear force-flux relationship. This is achieved by using bias fluxes generated by hard permanent magnets.
