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Position Control of a Multi-Motor Drive Based on Series-Connected Five-Phase Tubular PM Actuators

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5 Author(s)
Mengoni, M. ; Dept. of Electr. Eng., Univ. of Bologna, Bologna, Italy ; Tani, A. ; Zarri, L. ; Serra, G.
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In this paper, an electric drive for positioning systems, consisting of two five-phase tubular permanent-magnet (PM) actuators fed by a single five-phase inverter, is described. The key idea is to combine together the technologies of tubular PM actuators and of multiphase drives. A proximate time-optimal positioning control scheme and a more conventional positioning control scheme based on PI regulators are presented. In both cases, the disturbances introduced by the parasitic coupling between the two actuators due to a realistic non-ideal sinusoidal distribution of the stator windings are considered and compensated. The behavior of the drive is assessed by means of experimental tests.

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Industry Applications, IEEE Transactions on  (Volume:48 ,  Issue: 6 )