| 摘要:针对在实际工程应用中次级通道选取会严重影响控制效果的问题，对实际控制对象的多个次级通道测试数据进行拟合，并将拟合结果应用于控制算法并进行仿真分析。分析结果表明，次级通道选取无论对传统标准滤波-x最小均方（filter-x least mean square， FxLMS）算法还是改进变步长算法的控制效果都有很大影响，并基于FxLMS算法进行试验验证。研究结果表明：前期在选取次级通道时应尽可能进行测试、拟合、仿真，根据控制效果的仿真结果进行次级通道布置方案设计，以有效避免后期某点出现无效控制的情况，提升振动主动控制装置的控制效果和控制效率。 |
| 关键词: 振动 主动控制 次级通道 算法 |
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| Influence of Secondary-Path Parameter Identification on the Effect of Vibration Active Control |
| SONG Yixin,ZHU Zhibing,FAN Wenkun,YIN Ziyu,WANG Guan |
| Shanghai Marine Diesel Engine Research Institute, Shanghai 201108, China;National Engineering Research Center of Special Equipment and Power System for Ship and Marine Engineering, Shanghai 201108, China |
| Abstract:In view of the problem that the selection of secondary-path will seriously affect the control effect in practical engineering applications，the test data of multiple secondary-paths of the actual control object was fitted，and the fitting results were applied to the control algorithm and simulated.The analysis results show that the selection of secondary-path has a great influence on the control effect of the traditional standard filter-x least mean square（FxLMS）algorithm and the improved variable step size algorithm，and it was tested and verified based on the FxLMS algorithm.The research results show that in the early stage，when selecting the secondary-path，the test，fitting and simulation should be carried out as much as possible，and the secondary-path layout scheme should be designed according to the simulation results of the control effect，so as to effectively avoid the situation of ineffective control at some point in the later stage，and improve the control effect and control efficiency of the vibration active control device. |
| Key words: vibration active control secondary-path algorithm |
