Semi-active feedback control of elevator rope sway

摘要

A method controls an operation of an elevator system. The method receives an amplitude of a sway of an elevator rope and a velocity of the sway of the elevator rope determined during the operation of the elevator system. The method modifies a damping coefficient of a semi-active damper actuator connected to the elevator rope according to a function of the amplitude and the velocity of the sway.

主权项

1. A method for controlling an operation of an elevator system, comprising:
receiving an amplitude of a sway of an elevator rope and a velocity of the sway of the elevator rope determined during the operation of the elevator system; modifying, in response to the receiving, a damping coefficient of a semi-active damper actuator connected to the elevator rope according to a function of the amplitude and the velocity of the sway, wherein steps of the method are performed by a processor; and determining a control law stabilizing a state of the elevator system, wherein the control law determines a value of the damping coefficient based on the function, such that the value of the damping coefficient ensures a negative definiteness of a derivative of a control Lyapunov function, wherein the control law assigns the value of the damping coefficient of the semi-active damper actuator based on a sign of a product of the amplitude of the sway of the elevator rope and the velocity of the sway of the elevator rope.