Development of U-Shaped Linear Hybrid Motor

本研究的目的是开发一种结构新颖的实用直线感应-同步混合电机。近年来，随着电机在工业领域的应用，以感应电机和同步电机为代表的高稳定交流电机成为主流。虽然感应电机和同步电机在优缺点上存在互补关系，但由于运行效率的下降，利用现有的结构很难将它们混合在一起。从直线电机结构的角度出发，提出了U型直线混合电机，使感应电机与同步电机在同一绕组线圈上并联运行。首先，作为一个基础性的研究，我们证实了这种不受欢迎的磁引力被它的对称结构…所抵消此外，在励磁绕组一侧采用脉宽调制概念的分裂极，有效地降低了空间谐波，通过将同步动作与感应动作相结合，获得了有效的自启动和防止蛇行的感应推力。此外，我们还通过运行实验研究了其静态特性和暂态特性。因此，我们成功地证实了所提出的电机实现了振动小、范围短的同步的有效性。未来可以认为，包含多个特性的直线混合电机的发展将更加深入。由于每台电机的特征比取决于电机的整体特性，因此对于这种混合电机来说，要获得所要求的特性，所提出的电机具有独立于二次侧部件的U型结构是非常有效的。较少

The purpose of this research is to develop the linear induction - synchronous hybrid motor with a novel construction for practical use. In recent years, as for the adoption of the electric motors in the fields of industrial world, high stable alternating-current motor represented in the induction motor and the synchronous motor becomes the main stream. Though there are complementary relations between the induction motor and the synchronous motor in terms of advantages and disadvantages, it was difficult to hybridize them by existing structure because of the decline of the efficiency for operation. From the standpoint of the linear motors with construction, we proposed that the U-shaped linear hybrid motor that made us operate the induction motor in parallel with the synchronous motor on the same winding coil. A detailed examination was done for practical use.First as a fundamental investigation, we verified that the undesirable magnetic attraction was offset by its symmetrical construc … More tion, the space harmonics was reduced effectively by an adoption of split pole on the side of field winding with the concept of pulse width modulation, the effective inductive thrust for self starting and hunting prevention was obtained by hybridizing synchronous actions to the inductive actions.Furthermore, we investigated not only the static characteristics, but also the transient characteristics by the running experiment. As a consequence, we have succeeded to confirm the effectiveness of the proposed motor achieved to be synchronized with less vibration and shorter range.In future, it can be thought that the development of the linear hybrid motor including several characteristics proceed more.Since the characteristic ratio of each motor depends on the characteristics on the whole of the motor, as for getting requested characteristics with this hybrid motor, it is thought to be very effective that proposed motor has U-shaped construction which is independent on the secondary side part respectively. Less