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首页> 外文会议>2009年中国控制与决策会议（2009 Chinese Control and Decision Conference）论文集 >Active Control of a Two-stage Active Vibration Isolation System with Online Secondary Path Modeling
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Active Control of a Two-stage Active Vibration Isolation System with Online Secondary Path Modeling

机译：在线二级路径建模的两阶段主动隔振系统的主动控制

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摘要

A new adaptive active control strategy with online secondary path modeling is proposed and applied in two-stage active vibration isolation system. Compared with existing algorithms, the proposed method doesn't need feeding extra noise to the secondary source. Instead, the facts that the FIR filters have coefficient vectors equivalent to impulse responses corresponding to the transfer functions of physical systems are utilized, and when the coefficients of the control filter are updated, the filter coefficient vectors are different at different iteration steps because of estimation errors. Furthermore, in the method, the modeling of the secondary path is relatively independent of the active noise control system, and the reference signal is used as the input for the system identification. Therefore, the unwanted disturbances between the operation of the ANC controller and the identification of the secondary path are eliminated completely, and the complexity of ANC system is greatly reduced. Active control simulations by using the proposed method are conducted, and the results show good vibration reduction and strong robust.
机译：提出了一种具有在线二次路径建模的自适应主动控制策略，并将其应用于两阶段主动隔振系统。与现有算法相比，所提出的方法不需要向次级源馈入额外的噪声。相反，利用FIR滤波器具有与对应于物理系统的传递函数的脉冲响应等效的系数向量的事实，并且当更新控制滤波器的系数时，由于估计，滤波器系数向量在不同的迭代步骤处是不同的。错误。此外，在该方法中，次级路径的建模相对独立于有源噪声控制系统，并且参考信号用作系统识别的输入。因此，完全消除了ANC控制器的操作与次级路径的识别之间的不必要干扰，并且大大降低了ANC系统的复杂性。利用提出的方法进行了主动控制仿真，结果表明减振效果好，鲁棒性强。

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