摘要
特性及伯德图分析显示,比例、积分、微分控制器(PID)与压电陶瓷微位移定位系统(PZT)在直流电机定位控制过程中表现出较强的互补性。利用这一互补性,可构建直流电机复合定位控制系统(CPCS)。运用Mat-lab软件对系统进行建模和仿真,动态响应曲线表明,对阶跃及连续参照位移信号,该系统可根据定位位移大小和定位精度要求,进行PID控制与PZT控制之间的自动切换,完成对目标定位物体的动态跟踪,实现快速精确定位,效果优于单一定位控制器。
The characteristics and Bode diagrams analysis indicated that there was a highly complementarity between the PID control and the piezoelectric ceramic（PZT） micro-actuators in the positioning control process of DC motor.Taking advantage of this complementarity,we can build up the composite positioning control（CPC） system.The CPC system has been modeled and simulated by using the Matlab software.The dynamic response curve showed that,while loaded by step and continuous reference displacement signals,the system would automatically switch between the PID control and the PZT control,complete dynamic tracking to target objects,according to the magnitude of the reference signal and the requirement of the positioning accuracy.This behavior brings it a more prompt and precise result in positioning process than any of the single positioning controllers.
出处
《压电与声光》
CSCD
北大核心
2012年第5期788-791,796,共5页
Piezoelectrics & Acoustooptics
基金
安徽省高等学校省级自然科学基金资助项目(KJ2012Z139)
