西安交通大学学报(英文版)
西安交通大學學報(英文版)
서안교통대학학보(영문판)
JOURNAL OF XI'AN MEDICAL UNIVERSITY
2003年
2期
147-151
,共5页
胡军%刘文江%李嘉%叶道骅
鬍軍%劉文江%李嘉%葉道驊
호군%류문강%리가%협도화
dynamic hunting%extremum control%optimal control
Objective To propose a dynamic hunting extremum control method based on comparison of the estimated value and measured value. Methods The output linear group of the system is approximately expressed as an nth-order system with large time constant or with time delay. Moreover, the relation between input drive reversal of the logic circuit and dynamic output of the system is analyzed in detail. The calculating formulae for the drive reversal are given for different extremum control systems. Based on principles above, a controller using a micrprocessor and a testing laboratory plant were designed and implemented. Results With this new method, the controller achieves fast optimum point hunting process, good performance in extremum control systems for high order processes, and robust result under sudden change or drift of the extremum characteristics. Conclusion The new control owns the merits of rapid optimizing dynamics, robusticity, and wide applicability.
