RBF辨识PID控制器在温室温度控制中的应用研究  

RBF based-identification PID control for greenhouse temperature system

作　　者：贺争汉[1] 王大为[1] 史亚维[1] 屈毅[1] 

机构地区：[1]咸阳职业技术学院电信系,陕西咸阳712000

出　　处：《电子设计工程》2013年第22期33-35,39,共4页Electronic Design Engineering

摘　　要：针对温室温度控制系统存在的大滞后、大惯性等问题,提出采RBF辨识PID控制策略。该控制算法根据径向基函数(RBF)网络在线辨识温室温度系统的模型,获取被控对象Jacobian信息,利用BP网络实时调整PID控制器的3个参数,实现温室温度控制系统的在线自整定控制。通过仿真验证,并与RBF-PID控制器作对比,仿真结果表明,该控制算法有较强的鲁棒性、自适应性,其追踪性能和控制参数自适应的能力都优于RBF-PID控制器。Radial basis function （RBF） based-identification PID is investigated for greenhouse temperature system existed such characteristic as the big inertia,the big lag. First, RBF network identifies the plant of greenhouse temperature system on- line, which can obtain the Jacobian information of the plant. Then, BP network on-line adaptively adjusts PID three parameters,which achieve adaptively control for greenhouse temperature system. Simulation results show that the control method has better adaptability and robustness, and has the advantages of higher antinterference ability and adaptability to parameters.changing than RBF-PID control.

关 键 词：温室温度 PID控制器 参数整定 径向基函数 

分 类 号：TN99[电子电信—信号与信息处理]