Conference Paper

An active way linear synchronous motor with multiphase independent supply

Univ. of Appl. Sci. of Western Switzerland, Yverdon-les-Bains, Switzerland
DOI: 10.1109/ICELMACH.2010.5608462 Conference: Electrical Machines (ICEM), 2010 XIX International Conference on
Source: IEEE Xplore

ABSTRACT

In this paper an active way linear synchronous motor with multiphase independent supply is presented. The paper is mainly focused on the power electronics and control structure. The whole system, motor, power electronics and control has been built and successfully tested. The obtained results show that the chosen multi DSP master-slave structure allows the control of the proposed linear motor with good performances and reasonable costs.

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Available from: Serge Gavin, Feb 23, 2015
    • "To counteract the disadvantages listed above, a new concept, the active way linear motor [6], [7], has been proposed. However , an optical encoder was required to measure the position, which affects the flexibility of the proposed solution. "
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    ABSTRACT: This paper presents the implementation and the experimental validation of the speed controller, without position measurement, of an active way linear synchronous motor with multiphase independent supply. The proposed method is based on the back EMF estimation. The main drawback of this strategy is that it does not work at standstill. This paper also presents a second contactless method which, by making use of Hall sensors, allows to start the glider from standstill. These two methods have been implemented on a prototype, to demonstrate the feasibility of the speed control of the active way linear motor without position measurement cables.
    No preview · Article · Dec 2015 · IEEE Transactions on Industrial Electronics
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    ABSTRACT: In this paper, an active way linear synchronous motor with multiphase independent supply is presented. A proof-of-concept prototype of the proposed linear motor has been built, including power electronics and control. The control is based on a multi digital signal processor (multi DSP) master–slave structure. The controller design and the power and control boards have been described. The analytical model of the motor is presented. The analytical results are compared with a finite-element simulation, showing a good agreement. The analytical model has been also used to implement a dynamic model of the whole system in the Matlab/Simulink/Plecs simulation environment. The proof-of-concept prototype has been fully tested with one and two independent gliders. The obtained experimental results show that the chosen multi DSP master–slave structure allows the control of the proposed linear motor with good performances and reasonable costs.
    No preview · Article · May 2012 · IEEE Transactions on Industrial Electronics
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    ABSTRACT: This paper proposes a multiphase control strategy for a high dynamic brushless DC linear motor as an alternative for conventional three-phase field-oriented control. Analysis of the magnetic field waveforms shows that three-phase control is not optimal for the 6-slot 7-pole motor topology. Therefore, a multiphase control strategy is elaborated which injects currents proportional to the electromotive force into each of the nine stator coil groups. This results in a maximal alignment force per ampere between the stator and slider fields. Furthermore, only the stator coils with a useful contribution to the slider force are excitated. According to the simulation model, this yields a significant reduction of joule and iron losses for equal dynamic performance. The new strategy is implemented on a dSPACE rapid prototyping platform, controlling a custom-built multiphase converter. Measurements confirm the simulation results and show a significant reduction of power consumption compared to conventional three-phase control.
    No preview · Conference Paper · Jan 2013