Publisher : The Korean Institute of Electrical Engineers
DOI : 10.5370/KIEE.2015.64.11.1645
Title & Authors
Study of Magnetic Sensor Harmonic Reduction to Improve Direct Driven Motors Performance Applied to Platform Screen Doors Kim, Yun-Soo; Lee, Ju;
This paper presents the 3-dimensional electromagnetic field analysis method and correction of sensor distortion that is used by a motor speed sensor. The magnetic sensors are being expanded due to lower price than the other speed sensors such as resolver and encoder. Magnetic sensor generates sine and cosine waves when the motor rotates. However, the sine and cosine signals are distorted due to magnetic noise, which makes the angle error of the sensor, generated near by the Hall element. This paper defines an optimal design variables by using the Taguchi method to minimize output distortion of the magnetic sensor and permanent magnet. To enhance reliability of the magnetic position sensor from sensitivity error, assembly amplitude mismatch and the electrical angle, 3-Dimensional electromagnetic finite element method and correction algorithm errors were performed in due of the magnetic sensor in order to improve the quality of the initial production model.
Direct drive motor;Harmonic distortion;Magnetic sensor;3D FEM Analysis;
Y. J. Luo, E. T. Hwang, and S. M. Huang, "Multi pole magnetization of high resolution magnetic encoder", Electrical Electronics Insulation Conf. And Electrical Manufacturing & Coil Winding Conf, pp.237-242,Oct. 1993
ABruno Frazier, Z. Liub ea al, "Miniaturized linear magneticposition sensor for automotive application", IEEE Sensor Conf, Vol.2, pp. 1565-1570, Jun. 2002,
C.Schott, "Anew two axis magnetic position sensor", IEEE SensorConf, vol.2, pp.12-14 Jun. 2002
Sang-Oh Shim, Ki-Chan Kim, "3D Electromagnetic Analysis ofMagnetic Sensor for Improvement of Motor", Journal of Korea Academia-Industrial cooperation Society, Vol.14. pp. 2391-2387, 2013
Schott, C., "A new twe-axis magnetic position sensor, "Sensors, 2002.Proceedings of IEEE, vol. 2, pp.911-915, Jun, 2002.
Kikuchi, Y., Nakamura, F., Wakiwaka, H., and Yamada, H., "Consideration of magnetization and detection on magnetic rotary encoder using finite element method" ,IEEE Transactions on Magnetics, Vol. 33, no. 2, pp. 2159-2162, Mar, 1997.
Omekanda, A. M., "Robust torque and torqueper-inertia optimization of a switched reluctance motor using the Taguchi methods," IEEE Transactions on Industry Applications, vol, 42, no. 2, pp. 473-478, Mar, 2006.