IEEJ Transactions on Industry Applications
Online ISSN : 1348-8163
Print ISSN : 0913-6339
ISSN-L : 0913-6339
Special Issue Paper
Development of Educational Magnetic Levitation System with a Hall element Displacement Sensor: Construction of Current Sensorless Voltage Driven Control System Using Kalman Filter
Kentaro AsatoTsutomu Nagado
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2019 Volume 139 Issue 2 Pages 136-142

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Abstract

In this study, we developed a current sensorless voltage driven magnetic levitation system with a Hall element displacement sensor using Kalman filter. The system costs less and has higher portability than the current driven system developed in a previous study, and is utilized effectively for model-based development education. However, the use of the displacement sensor for a voltage driven magnetic levitation system causes two problems, namely compensation for measurement error and correction of Hall element output voltages in the sensor. Therefore, we have proposed compensation and correction methods using Kalman filter. To verify the validity of the proposed methods, a magnetic levitation control experiment with the developed system was conducted.

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© 2019 by the Institute of Electrical Engineers of Japan
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