磁気浮上ガイドを用いたエレベータの安定化制御

抄録

As buildings become taller and taller, the speed of elevators is increasing, and elevators with a speed of over 1200 m per minute have been introduced. However, since the ride comfort worsens at higher speeds, improvement of the ride comfort is also required. The ride comfort of an elevator is evaluated by the vibration acceleration of the cabin, and the vibration acceleration is generated when the elevator travels on a guide rail with steps and distortions. Therefore, instead of running on the guide rail with roller guides, the elevator is supported by suction-type magnetic levitation, which improves the ride comfort by raising the elevator from the guide rail. However, the suction type magnetic levitation has a characteristic that the suction force changes depending on the amount of air gap, so it is necessary to control the suction force. In this study, the suction force is controlled by controlling the current flowing to the electromagnets. The purpose of this study is to reduce the vibration acceleration of the cabin while preventing the cabin from contacting the guide rail.