【摘要】 针对参考信号频率与振源频率偏差造成往复海水泵自适应主动控制性能下降的问题,提出直接泄漏滤波X最小均方的自适应振动控制算法。通过一种几何关系来进行参考信号的相位更新,并基于泄露滤波X最小均方误差方法,设计了直接进行频率函数控制更新和控制权系数更新的振动控制算法。通过泄露因子限制控制输出能量。为验证该方法的有效性,进行了仿真。仿真结果表明,该方法能够通过自调节参考信号频率,跟踪振源信号变化,取得良好的振动抑制效果。进行了水泵试验台架的振动控制试验,检验该自适应控制算法性能。试验结果表明,该方法能够对频率缓慢变化的水泵振动进行有效的自适应振动控制。更多还原

【Abstract】 In order to tackle the performance degradation of active reciprocating pump vibration control system caused by frequency error between reference signal and primary vibration source,a direct approach-based adaptive vibration control algorithm was proposed with adaptive self-generating reference signal. The phase of reference signal was updated based on geometry relationship,besides the frequency function recursion and the control coefficients recursions were designed directly based on the leaky filtered-X least mean-square algorithm. Control effort was limited by the leaky factors. Simulation and experiment were carried out to validate the effectiveness of the proposed method. Effective suppression of vibration was achieved by adaptively tracking the vibration source frequency in simulations,and the effective performance of proposed algorithm was confirmed in experiments of slowly varying frequency water reciprocating pump vibration.更多还原