Active damping control for electrodynamic suspension systems without mechanical transducers

Author

Brunelli, Benito ; Casadei, Domenico ; Serra, Giovanni ; Tani, Angelo

Author_Institution

Dipartimento di Ingegneria Elettrica, Bologna Univ., Italy

Volume

32

Issue

5

fYear

1996

fDate

9/1/1996 12:00:00 AM

Firstpage

5055

Lastpage

5057

Abstract

In this paper an electrodynamic suspension system for maglev vehicles is analysed, in which the active damping of the vertical oscillations is obtained without position, velocity and acceleration transducers. The damping effect is accomplished controlling the supply voltage of the damping coil to respond to current changes due to vertical oscillations. The stability of the suspension system is investigated by a linearized analysis of the model equations, emphasising the influence of the voltage regulator parameters. The performance of the damping system, in terms of step response and ride quality, is also discussed

Keywords

damping; magnetic levitation; mechanical variables control; vehicles; active damping control; electrodynamic suspension system; linearized model; maglev vehicle; ride quality; stability; step response; vertical oscillations; voltage regulator; Acceleration; Coils; Control systems; Damping; Electrodynamics; Magnetic levitation; Stability analysis; Transducers; Vehicles; Voltage control;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.539488

Filename

539488