摘要
营养液调配控制系统是一个非线性、滞后参数时变的非最小相位系统,同时还存在各种约束条件.因此,要想精确建立其数学模型是非常困难的.针对这一特点,本文利用系统阶跃响应序列建立一种非参数模型,并提出了带误差变化率反馈校正的动态矩阵控制改进算法,并通过仿真实验比较证明了改进算法的正确性和有效性.
The nutrient solution control system is essentially a complex nonlinear system with uncertain parameters, time delay and disturbance. The accurate mathematical model of the control system can hardly be constructed. According to these traits, a sort of non- parameter model constructed using the data of step response and an improved dynamic matrix control（DMC） algorithm should be presented in this subject. This algorithm includes the variation rate feedback of output error. The comparison in simulation results verifies correctness and effectiveness of the improved algorithm.
出处
《山东理工大学学报（自然科学版）》
CAS
2005年第4期96-99,共4页
Journal of Shandong University of Technology:Natural Science Edition
基金
山东省自然科学基金资助项目(2003ZX10)
关键词
营养液
预测控制
动态矩阵
改进算法
nutrient solution
predictive control
dynamic matrix
improved algorithm
