【作者】 张聚； 杨庆华； 计时鸣；

【Author】 Zhang Ju Yang Qinghua Ji Shiming(College of Mechanical and Electrical Engineering,Zhejiang tJniversity of Technology, Hangzhou 310032)

【机构】 浙江工业大学机电工程学院；

【摘要】 对电梯振动实行主动控制,按H_∞最优设计控制律,使闭环系统从外扰至受控输出的H_∞范数为最小。采用电梯矫厢的振动加速度作为反馈信号,将使主动控制在工程上易于实现。数值仿真表明,闭环系统传递函数能得到很大的抑制,控制的效果是明显的、有效的。此外,H_∞最优控制还具有工程上的优点。更多还原

【Abstract】 Active vibration control techniques are introduced in this paper to suppress the excessive vibration response of the elevator car. H∞ optimal control method is employed to design the controller so that the H∞ norm of the closed transfer function from the outside disturbs to the regulated outputs of the system is minimized. Vibration acceleration response of the elevator car is used as feedback signal and thus the engineering implementation of the active control will be simplified. Computer simulation shows that there is a great reduction of the closed transfer function compared with the uncontrolled one and thus the control is effective. In comparison with the time - domain - based optimal control, or the H2 optimal control, the method employed in this paper offers a good match between the control concept and engineering practice.更多还原