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Measurement and Control of Magnetic Flux Signal in a Maglev System
Author(s) -
Zhang WenQing,
Li Jie,
Zhang Kun,
Cui Peng
Publication year - 2015
Publication title -
asian journal of control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.769
H-Index - 53
eISSN - 1934-6093
pISSN - 1561-8625
DOI - 10.1002/asjc.815
Subject(s) - maglev , control theory (sociology) , magnetic levitation , magnetic flux , robustness (evolution) , electromagnetic suspension , magnetic field , engineering , linearization , signal (programming language) , physics , computer science , electrical engineering , magnet , nonlinear system , control (management) , chemistry , quantum mechanics , biochemistry , artificial intelligence , gene , programming language
Abstract A linear model of the magnetic‐levitation (maglev) system, including magnetic flux signal, has been established based on feedback linearization. This paper emphasizes measurements of magnetic flux signal and velocity signal, which are realized easily by electromagnetic induction law. The magnetic flux signal's range obtained by this method is wide. The degree of sensitivity can be regulated by changing the vertical area of the induction coils. Furthermore, this paper has designed a PIDB (proportion, integration, differentiation, flux density B ) controller based on flux feedback, and some experiments have been performed on a CMS04 magnetic suspension vehicle in the national mid‐low speed maglev experiment field of T angshan city, C hina. The experimental results denote that the PIDB control method designed in this paper has more advantages than the traditional control method with position and current double cascades, and the robustness and stability of the maglev control system by this method have been verified effectively.