摘要
对基于LMS自适应算法的压电驱动器控制通道数学模型辨识方法进行系统研究。压电驱动器控制通道数学模型是基于FX-LMS控制算法的各类主动隔振或主动控制系统开发所必须的条件。首先对其进行详细的理论推导,并对其工程实现进行分析;在此基础上,开发基于LMS算法的压电驱动器控制通道辨识系统;最后应用该辨识系统对某基于压电堆驱动器的一维微振动主动隔振平台的控制通道数学模型进行辨识,以检测所研制辨识系统的可行性和有效性。测试结果表明所辨识的控制通道数学模型可以用于基于LMS自适应算法的控制系统的开发。
The research work had been done on the control channel mathematic model of piezoelectric actuator using LMS adaptive algorithm. The control channel mathematic model of piezoelectric actuator is a necessary condition to develop many kinds of active isolation or vibration control system based on FX-LMS control algorithm. First, the detailed theory analysis had been derived on the LMS algorithm, and the realized process had been analyzed. Then based on it, the control channel mathematic model identification system had been developed using LMS algorithm. At last, it was used to identify some control channel mathematic model of one dimension micro vibration active isolation platform using piezoelectric stack actuator in order to test the feasibility and efficiency of the identification system we developed. The result includes that the identified control channel mathematic model can be used to develop control system based LMS adaptive algorithm.
出处
《深圳信息职业技术学院学报》
2015年第1期16-21,共6页
Journal of Shenzhen Institute of Information Technology
基金
深圳信息职业技术学院校级项目(lg201226)
国家教育部博士点基金项目(20102302120046)
关键词
LMS算法
控制通道
数学模型
辨识
LMS algorithm
control channel
mathematic model
identification
