DEVELOPMENT RESEARCH OF THE SURFACE INDUCTION MOTOR

表面感应电动机作为一种具有任意方向直线运动和旋转功能的二维驱动电动机，对其进行了研究。该电动机具有由环形铁芯和分别提供电流的电枢线圈组成的初级构件，以及由导电板和背铁板组成的次级构件。由于主构件是圆形的，并且次构件没有方向性，因此所产生的力在任何平面位置处都不会改变。以下事实变得清楚。作为向每个线圈供应电流以使两组绕组用于线性驱动的方法，使用所有线圈的方法在力的大小方面是最好的。在左右绕组的电流密度空间分布相对于直线运动轴呈点对称的条件下，得到了最大的力.针对三相逆变器在直线驱动中用于换向的问题，提出了分绕组式表面感应电动机。明确了六绕组三相逆变器和八绕组四三相逆变器两种结构的可行性.在圆形表面感应电动机中，明确了对于行波场在运动方向上的等效同步速度为0.88倍。通过与两台直线电机配置的二维驱动相比，两台直线电机配置的推力小于表面感应电机配置的推力，两台直线电机配置的等效同步转速是表面感应电机配置的0.707倍。并且，在使用同步速度为1.0的一个电动机时的力小。也就是说，表面感应电动机具有上级的性能。

As a two-dimensional drive motor with functions of any directional linear movement and rotation, the surface induction motor is studied. The motor has the primary member composed with a toroidal core and armature coils supplied the current separately, and the secondary member is composed of a conducting plate and a back iron plate. As the primary member is the circular shape and the secondary member has no directional quality, the generated force does not change at any planar position. The following facts became clear.1. As a method for the supply of the current to each coil to make the two groups of windings for the linear drive, the method using all coils is best in the point of the magnitude of the force. The maximum force is obtained at the condition that the space distributions of current density of the right and left windings are point symmetry each other to the axis of linear motion.2. For the use of three-phase-inverters for the change of direction in linear drive, we proposed the divided winding type surface induction motor. It is cleared that the configuration with six divided windings and three three-phase inverters or the configuration with eight divided windings and four three-phase inverters in useful.3. In the circular shaped surface induction motor, it is cleared the equivalent synchronous speed in the moving direction for the traveling field is 0.88 times. By comparing with the two linear motors configuration for two-dimensional drive, the thrust at the use of two motors is less than that of the surface induction motor, the equivalent synchronous speed of the two motors configuration is 0.707 times. And, the force at the use one motor with the synchronous speed of 1.0 is small. That is, the surface induction motor has superior performance.