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Delayless acceleration measurement method for elevator control

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2 Author(s)
Valiviita, S. ; Inst. of Power Electron., Helsinki Univ. of Technol., Espoo, Finland ; Ovaska, S.J.

Accurate sensing of acceleration could provide improved performance for elevator control. Acceleration control is, however, seldom implemented, due to the unsatisfactory results of most acceleration measurement methods. We propose a polynomial predictive differentiator which delaylessly differentiates the available velocity signal. Polynomial prediction is justified, because the acceleration curve can be modeled accurately by a piecewise polynomial

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Industrial Electronics, IEEE Transactions on  (Volume:45 ,  Issue: 2 )