高阶微分控制器及其在交流调速中的应用  

Adaptive High Order Differential Feedback Controller and its Application in Control of AC Motor Speed

作　　者：薛薇[1] 齐国元[1] 石秀敏[1] 陈晓艳[1] 

机构地区：[1]天津科技大学电子信息与自动化学院,天津300222

出　　处：《电气自动化》2006年第3期3-4,7,共3页Electrical Automation

基　　金：天津市高等学校科技发展基金项目(02063)

摘　　要：传统 PID 控制器由于它提取微分信号的方法过于简单,微分信号品质较差而不易满足高品质性能要求。而现代控制理论由于过分依赖于被控对象的精确数字模型,在工业过程控制的应用中受到了极大地限制。本文利用不依赖于被控对象的高阶微分器(HOD),提取了信号高品质的微分信号及其高阶微分信号。并将基于 HOD 设计的高阶微分反馈控制器(HODFC)编制成相应控制算法,组成了由计算机为控制器的交流电机调速系统。通过仿真和实验,验证了 HOD 及 HODFC 理论的正确性和实用性。PID control is widely used in process control. But the method of extracting differential signal is so simple that the extracted bad differential signal does not adapt to the high quality requirement. And the application of modern control is greatly restricted because of it depends on accurate model exceedingly. This paper uses the high order differentiator（HOD）that does not rely on the model of the controlled objective and can extract high quality differential signal and high differentials. High order differential feedback adaptive controllers（HODFC） is designed to control program based on HOD in VC ＋ ＋, thus to make up AC motor speed closed loop system taking computer as controUer. The simuation result and experiment result prove the validity and practicality of HOD and HODFC.

关 键 词：高阶微分器(HOD) 高阶微分反馈控制器(HODFC)交流调速系统 

分 类 号：TM921.51[电气工程—电力电子与电力传动]