Electromagnetic design of a magnetic suspension system
- 1 May 1997
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Education
- Vol. 40 (2) , 124-130
- https://doi.org/10.1109/13.572325
Abstract
Magnetic levitation of a metallic sphere provides a high-impact visual demonstration of many principles in undergraduate educational programs in electrical engineering, e.g., electromagnetic design, compensation of a unstable control system and power amplifier design. This paper deals with the electromagnetic and dynamic analysis of the levitation system and it has design formulae which are derived from first principles. This analysis leads to a plant transfer function which is used to implement a proportional plus derivative (PD) compensation strategy. Issues covered include coil and wire sizing for a given temperature rise. The paper shows that the electromagnet can be optimized for a given sphere. An experimental system is described which levitates a 6 cm, 0.8 kg sphere.Keywords
This publication has 3 references indexed in Scilit:
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- Design of a Magnetic Levitation Control System???An Undergraduate ProjectIEEE Transactions on Education, 1986
- Magnetic suspension systems with digital controllersReview of Scientific Instruments, 1986