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| Abstract |
Ropeless linear elevator is expected to be a new transport solution for skyscrapers and very deep underground applications in the near future. This paper presents a contactless guide control for ropel...ess linear elevator running on the guideway of which irregularities are assumed to be a sinusoidal form. The ropeless linear elevator is controlled on the basis of the theory and design for controlled-PM linear synchronous motor (LSM) developed by one of the authors. The constant-airgap control method in starting, normal operating and stopping modes of the elevator has been carried out by using an optimum robust feedback control for the guide system. The four controlled-PM's have been regulated independently to accomplish an accurate control of the five-masses-system with the cage connected through the four springs. The dynamics simulation has shown that the guide control system has satisfied the constant-airgap control of the controlled-PM's following very well the reference. It has also been found that the cage motion has not been almost affected by the guideway disturbance in spite of its no centering-control.show more
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