高速エレベータ用乗りかごのアクティブ振動制御に関する研究(機械力学,計測,自動制御)

概要

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When elevators travel at high speed, horizontal vibrations of the car tend to be set up by guide rail deformations, so the ride quality deteriorates. Therefore, several active suspension systems have been developed to reduce these vibrations. These systems have six actuators that independently activate guide rollers. To reduce costs and installation tasks, it is necessary to develop a system with a minimum number of actuators and a simplified controller. We have developed a new system that has only three actuators. The controller incorporates an H-infinity control design method in order to consider the stability of the system during any change in load. Furthermore, from a practically view point, it is important to reduce the order of the controller so that on-site parameter tuning time can be reduced. We reduced the H-infinity controller to a P controller. We demonstrated that the maximum amplitude of vibrations of a car with control can be reduced to almost half the amplitude of a car without control.
2009-06-25