Research of the algorithm of the closed-loop control system to control the piezoelectric actuator  

作　　者：王广林 刘胜伟 邵东向 李云峰 

机构地区：[1]Dept. of Mechanical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China

出　　处：《Journal of Harbin Institute of Technology(New Series)》2005年第1期31-33,共3页哈尔滨工业大学学报（英文版）

摘　　要：The piezoelectric actuator has been widely used in precision instruments and precision control. However, hysteresis, nonlinearity and creep exist in the actuator, which limit actuator applications and affect accuracy. This thesis introduces fuzzy control as the algorithm of a closed-loop control system to control the piezoelectric actuator. Fuzzy control can make this closed-looped system not only have high linearity, repeatability, accuracy and few overshoot, but isalso easily used.The piezoelectric actuator has been widely used in precision instruments and precision control. However, hysteresis, nonlinearity and creep exist in the actuator, which limit actuator applications and affect accuracy. This thesis introduces fuzzy control as the algorithm of a closed-loop control system to control the piezoelectric actuator. Fuzzy control can make this closed-looped system not only have high linearity, repeatability, accuracy and few overshoot, but isalso easily used.

关 键 词：piezoelectric actuator position control closed-loop control fuzzy control 

分 类 号：TN830.7[电子电信—信息与通信工程] TP273.4[自动化与计算机技术—检测技术与自动化装置]