Development of U-Shaped Linear Hybrid Motor

本研究的目的是开发一种结构新颖的直线感应-同步混合动力电机，以供实际应用。近年来，在工业领域中电机的采用方面，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。虽然感应电机与同步电机在优缺点上具有互补关系，但由于运行效率的下降，现有结构难以将两者杂交。从线性电机结构的角度出发，我们提出了u型线性混合电机，使感应电机与同步电机在同一绕组线圈上并联运行。为了实际使用，做了详细的检查。首先进行了基础研究，验证了磁场的对称结构可以有效地抵消磁场产生的不良磁场吸引；其次，采用脉宽调制的方法在磁场绕组侧采用分极，有效地降低了空间谐波；通过同步作用与感应作用的杂交，获得了有效的自启动和防止寻迹的感应推力。此外，通过运行实验，我们不仅研究了静态特性，还研究了瞬态特性。因此，我们已经成功地证实了所提出的电机实现同步的有效性，振动更小，范围更短。未来，可以认为，包括几个特点的直线混合动力电机的发展将进一步推进。由于每个电机的特性比取决于整个电机的特性，因此为了使该混合电机获得所要求的特性，我们认为所提出的电机具有分别独立于二次侧部分的u型结构是非常有效的。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