English

应用科学学报 ›› 1997, Vol. 15 ›› Issue (4): 474-481.

• 论文 • 上一篇    下一篇

潮汐模拟系统的建模与自适应控制

张承慧, 王划一, 张天德   

  1. 山东工业大学
  • 收稿日期:1996-07-19 修回日期:1996-12-09 出版日期:1997-12-31 发布日期:1997-12-31
  • 作者简介:张承慧:副教授,山东工业大学自动化系,济南 250061

MODELLING OF THE TIDAL MODEL SYSTEM AND ADAPTIVE CONTROL

ZHANG CHENGHUI, WANG HUAYI, ZHANG TIANDE   

  1. Shandong University of Technology, Jinan 250061
  • Received:1996-07-19 Revised:1996-12-09 Online:1997-12-31 Published:1997-12-31

PDF

77

被引次数

3

摘要： 为改善潮汐模拟系统的动态和静态性能,需要建立精确的动态模型,并确定合理的控制策略.文中以水位和流量为被控变量,详细研究潮汐模拟系统的建模与自适应控制原理和应用,设计一种加权最小方差自校正调节器实现潮汐模拟系统的高精度控制.提出适用于潮汐模拟系统的时变参数估计方法以提高估计精度,引入"遗忘因子"避免数据饱和现象,提高系统的鲁性.仿真实验和实际应用都证实,新控制方案是成功的.

关键词: 潮汐模拟, 水力模型, 遗忘因子, 自适应控制, 参数估计

Abstract: In order to improve the dynamic feature and static accuracy of tidal model system, it is necessary to obtain an accurate dynamic model and select a rational control strategy. In this paper, the modelling and adaptive control for tidal model system are studied in detail with the water level and water flow being controlled variables. The weighting minimum variance self-tuning regulator is designed to obtain a high accuracy control for the tidal model system. A new parameter estimation method is used to increase the accuracy. The adoption of "fogetting factor" in the method can avoid the data saturation and improve the robustness. Both simulations and application have proved that the new control strategy is sucessful.

Key words: fogetting factor, parameter estimation, tidal model, hydraulic model, adaptive control