高速电梯机械振动的时域最优主动控制

Time-domain-based optimal-control of mechanical vibration of high-speed elevator

采用振动的主动控制方法对电梯轿厢运行过程中的过大的机械振动实行控制。按时域最优来设计控制律。在四种不同的工况下 ,不同的控制力布置方案及控制指标中不同的加权系数选择等情况下的控制效果都作了仿真并进行了比较。数值仿真结果表明 ,各种情况下的控制效果是明显的 。

Active vibration control techniques are introduced in this paper to suppress the excessive vibration response of the elevator car. Time\|domain\|based optimal\|control method is employed to design the controller. Computer simulations of controlled response are made under four extreme working conditions. Comparisons of the control effects between the different actuator placements, and between the different choices of weight factors in performance index are also made. Simulated results show that there is a great reduction both in RMS and in peak value of controlled response compared with the uncontrolled, and thus the control is effective.