Development of Self-Sensing Control Technique for a Self-Bearing Motor

自轴承电机自传感控制技术的开发

基本信息

批准号：
12650223
负责人：
MATSUDA Ken-ichi
金额：
$ 1.79万
依托单位：
Ibaraki University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2000
资助国家：
日本
起止时间：
2000 至 2001
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12650223/
关键词：
Self-Bearing Motor Self-Sensing Pulse Width Modulation Differential Transformer

项目摘要

Application of self-sensing motor is considered, especially for small application such as a hard disk drive and an artificial heart pump. These systems require miniaturization and row power consumption of the actuator. Especially miniaturization of the actuator is the most important theme of the system development. However self-bearing motor is an active control system, which requires a certain type of sensor. Noncollocate configuration of the sensor and actuator might cause undesirable control property and existence of the sensor setting space becomes serious obstacle for miniaturization. To overcome these problems. this project proposes self-sensing control technique based on the principle of differential transformer.First, it was clarified that the mutual inductances between each of motoring windings and control windings has linear property for the radial direction displacement in both theoretical analysis and static self-sensing experiments. Next, noise reduction, installation of additional resonant circuit and appropriate regulation of the bandwidth of the self-sensing outputs were applied to the driving and detecting circuits to control rotor without any external sensors. Finally, self-sensing levitation control was succeeded at a specific angular position. Simultaneously the carrier component, which possesses information of the rotor displacement, changes by the angular position of the permanent magnet rotor and the value of control current. Hence the levitation control with rotation could not succeeded by those undesirable properties. However it shows a good property as a collocated sensor just levitation control and very high possibility of the self-sensing control of the self-bearing motor.

考虑使用自感电机，尤其是用于小型应用，例如硬盘驱动器和人造心脏泵。这些系统需要小型化和执行器的行消耗。尤其是对执行器的小型化是系统开发的最重要主题。但是，自我发音的电动机是一个主动控制系统，它需要某种类型的传感器。传感器和执行器的非集合配置可能会导致不良控制属性，并且传感器设置空间的存在成为小型化的严重障碍。克服这些问题。该项目提出了基于差分变压器原理的自感应控制技术。首先，澄清说，在理论分析和静态的自我感应实验中，每种电动绕组和控制绕组之间的相互电感具有线性特性。接下来，将自感应输出的带宽的噪声降低，安装额外的共振电路安装以及适当的调节，将其应用于驾驶和检测电路以控制转子，而无需任何外部传感器。最后，在特定的角度位置取得了自感情感悬浮控制。同时，具有转子位移信息的载流子组件会随永久磁体转子的角度位置和控制电流的值而变化。因此，旋转的悬浮控制无法由这些不良特性成功。然而，它显示出很好的特性，作为一种共处的传感器，只是悬浮的控制控制，并且对自动电机的自感控制的可能性很高。