This article presents an active vibration control of seismically excited building structures. The control scheme is based on active disturbance rejection control, which is an attractive alternative technique for structural vibration suppression and practical motion control solution in the presence of parametric uncertainties and disturbances. The proposed active disturbance rejection control scheme uses a generalized proportional integral observer, which allows us to estimate in real time the unknown dynamics and disturbances in the building structure to cancel their effect using a part of the control signal. First, the active disturbance rejection control provides a proportional derivative controller with robustness to external disturbances and uncertainties, and its structure is expressed in a compact error-based form. An important advantage with respect to other methods is that the proposed scheme does not need the system parameters. Moreover, supposing that displacement and velocity cannot be measured directly, an online robust adaptive observer is introduced to estimate both data, required for the proportional derivative controller. The adaptive observer removes constant disturbance and attenuates measurement noise in acceleration data. Under this line, a second active disturbance rejection control scheme is introduced based on a proportional controller that, unlike proportional derivative, it only needs the velocities that can be directly estimated by integrating the acceleration signals and does not require the adaptive observer. An advantage of this scheme is its simplicity to be implemented because it only needs to tune the proportional gain. Furthermore, this scheme has a similar performance of the proportional derivative controller. The effectiveness of the proposed active disturbance rejection control schemes is demonstrated through experimental results of a reduced scale five-story building structure. The results are found to be a good step in that direction, confirming that the proposed method is promising for practical applications.

本文介绍了地震激励建筑结构的主动振动控制。该控制方案基于主动干扰抑制控制，这是在存在参数不确定性和干扰的情况下，用于结构振动抑制和实际运动控制解决方案的一种有吸引力的替代技术。提出的主动干扰抑制控制方案使用广义比例积分观测器，该观测器允许我们实时估计建筑结构中未知的动力和干扰，以使用一部分控制信号消除其影响。首先，主动干扰抑制控制为比例微分控制器提供了对外部干扰和不确定性的鲁棒性，并且其结构以紧凑的基于误差的形式表示。相对于其他方法的重要优点是，所提出的方案不需要系统参数。此外，假设不能直接测量位移和速度，则引入了在线鲁棒自适应观测器来估计比例微分控制器所需的两个数据。自适应观测器消除了恒定的干扰并衰减了加速度数据中的测量噪声。在这条线下，基于比例控制器引入了第二种有源干扰抑制控制方案，与比例导数不同，该控制器仅需要可以通过积分加速度信号直接估计的速度，而无需自适应观测器。该方案的优点是易于实现，因为它只需要调整比例增益即可。此外，该方案具有与比例导数控制器类似的性能。通过缩小规模的五层建筑结构的实验结果证明了所提出的主动干扰抑制控制方案的有效性。结果被发现是朝这个方向迈出的良好一步，证实了所提出的方法对于实际应用是有希望的。