Abstract
Electric motors with heteropolar surface magnets on the rotor and homopolar windings are suitable to get a simple and powerful small-sized stepping motor. Because of the search for a low-cost motor the concept of a toroid-coil motor with permanent magnets has been designed. Structure and specification are based on the threedimensional Finite Element Method (3D-FEM) presented in this paper. The 3D-FEM has been taken to calculate the magnetic field and the static torque has been computed with the Maxwell Stress Tensor Method. Analytical calculation has been used to investigate the influence of the pole pitch. The results are compared with test results of a prototype machine. Possible applications of the designed motor are stepper motors, servo applications, conveyor drives and direct drives.
| Original language | English |
|---|---|
| Title of host publication | SPEEDAM 1998, Proceedings Symposium on Power Electronics Electrical Drives Advanced Machines Power Quality |
| Number of pages | 6 |
| Publication status | Published - Jun 1998 |
Fields of science
- 202 Electrical Engineering, Electronics, Information Engineering
- 202009 Electrical drive engineering
- 202011 Electrical machines
- 202025 Power electronics
- 202027 Mechatronics
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