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Research on Reduction of Natural Vibration in Three-Phase Hybrid Stepping Motor Drive Systems

三相混合式步进电机驱动系统自振降低研究

基本信息

批准号：
12650280
负责人：
OGASAWARA Satoshi
金额：
$ 0.38万
依托单位：
OKAYAMA 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-12650280/
关键词：
three-phase hybrid stepping motor natural vibration sensorless detection of rotating direction

项目摘要

Numerous stepping motors are widely used in office automation or factory automation apparatus, because of low cost and easy positioning. However, a stepping motor drived by the constant-current open-loop control has a big problem that a large natural vibration in the motor rotor occurs, because commutations of the motor current are performed regardless of the rotor position.This research aims to develop a new stepping motor drive system which can reduce natural vibrations of the rotor without shaft-mounted position sensor. The drive system is characterized by sensorless detection of the rotating direction based on measurement of back emf in the motor windings. As a result, the drive system can damp rotor natural vibration of the three-phase hybrid stepping motor. In 2000, an experimental drive system has been implemented and tested to confirm the effectiveness and versatility of the proposed pattern. Some experimental results show that the experimental system can detect the rotating direction and damp the rotor natural vibration even if the rotor inertia varies. In 2001, a control software for the one-chip microprocessor has been developed to realize the proposed pulse generation method using information of the vibration period. The control software is characterized by the excellent performance that the undesirable natural vibration can be reduced in any conditions.Finally, we belive that the contribution obtained by this research can be applicable to wide applications using stepping motors.

众多步进电机因其成本低且易于定位而广泛应用于办公自动化或工厂自动化设备中。然而，由恒流开环控制驱动的步进电机存在一个大问题，即电机转子会发生较大的固有振动，因为无论转子位置如何，电机电流都会进行换向。本研究旨在开发一种新型步进电机驱动系统，无需安装轴安装位置传感器即可减少转子的固有振动。该驱动系统的特点是基于电机绕组反电动势的测量来无传感器检测旋转方向。因此，该驱动系统可以抑制三相混合式步进电机的转子固有振动。 2000 年，实施并测试了一个实验驱动系统，以确认所提出模式的有效性和多功能性。实验结果表明，即使转子惯量发生变化，该实验系统也能检测旋转方向并抑制转子固有振动。 2001年，开发了一种单片微处理器的控制软件，以实现所提出的利用振动周期信息的脉冲生成方法。该控制软件的特点是具有在任何条件下都可以减少不良自然振动的优异性能。最后，我们相信这项研究所取得的贡献可以适用于使用步进电机的广泛应用。