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作 者:张雪花[1] 张武[1,2] 杨旭[1] 王露皎 马慧敏[1] 范琼[1]
机构地区:[1]安徽农业大学信息与计算机学院,合肥230036 [2]安徽农业大学农业部农业物联网技术集成与应用重点实验室,合肥230036
出 处:《控制工程》2017年第1期8-15,共8页Control Engineering of China
基 金:农业部农业物联网技术集成与应用重点实验室开放基金(2016KL05);农业部引进国际先进科学技术948项目(2015-Z44);安徽农业大学引进与稳定人才科研资助项目(wd2015-05)
摘 要:随着现代控制技术在农业领域的快速发展,温室环境控制系统的研究得到国内外学者的广泛关注。因温室环境的大滞后、非线性、多输入多输出(MIMO)等情况,难于构建精确数学模型结构,运用简单的基于模型的控制策略难以对其实施准确的调控。因此,如何将传统控制方法与现代控制方法结合实现温室环境的优化控制是目前温室控制系统亟待解决的实际问题。文中分别从PID控制、现代控制、智能控制和解耦控制等方面综述温室环境控制方法的研究现状,指出各种方法在温室环境控制中仍需解决的问题;认为可靠的温室系统模型是实现温室自动化控制的前提条件,提出将温室机理过程与系统辨识方法融合建立温室环境模型的新思路。With the development of modem control technology, study of the greenhouse environment controlsystem has been widely concerned by scholars. It is very difficult to use a single control method based onmodels to implement the precise control due to the complexity of the greenhouse environment. Greenhouse ishighly nonlinear, strong coupled and multiple-input multiple-output (MIMO) systems. They are largelyinfluenced by the outside weather and many other practical constraints. As a result, there is a problem to solvethe practical problem of greenhouse control system at present. That is how to combine the traditional controltheory with the modem control method to achieve the optimal control of greenhouse environment. This paperstarts which concerns about the field of greenhouse control research, then summarizes the research of controlmethods of greenhouse environment from the PID control, modem control, intelligent control and decouplingcontrol and points out some problems which still need to be solved in greenhouse environment control methodsFinally, it is considered that a reliable greenhouse system model is the precondition of the realization of thegreenhouse automation control. In this way, combining the mechanism in the greenhouse with the method ofsystem identification is a new idea.
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