期刊名称：Advance Journal of Food Science and Technology
印刷版ISSN：2042-4868
电子版ISSN：2042-4876
出版年度：2013
卷号：5
期号：10
页码：1395-1403
DOI：10.19026/ajfst.5.3116
出版社：MAXWELL Science Publication
摘要：In order to solve the strong coupling characteristic of the temperature and humidity in wireless greenhouse environmental simulation test system which is with nonlinear, big lag, strong coupling, time-varying characteristics and so on, this study proposed an adaptive prediction decoupling method based on dynamic matrix control algorithm. This method can effectively overcome the influence of control accuracy that is caused by serious loss of matching control model. In order to validate the effectiveness of the proposed algorithm and compared with PID control algorithm by simulation experiment. The each mode for heating and humidification was obtained by step response method and on the basis of the model, the PID and forecast decoupling simulation were obtained separately. The Simulation and experimental results show that the adaptive predictive decoupling algorithm can effectively weaken dynamic coupling between temperature and humidity and the control system performance was greatly improved.
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