变风量空调系统房间温度的串级自抗扰控制  

Cascade Active Disturbance Rejection Control for Room Temperature of Variable Air Volume Air Conditioning System

作　　者：杨世忠 衡丽帆 YANG Shi-zhong;HENG Li-fan(School of Information and Control Engineering,Qingdao University of Technological Qingdao 266520,China)

机构地区：[1]青岛理工大学信息与控制工程学院,山东青岛266520

出　　处：《控制工程》2021年第1期8-13,共6页Control Engineering of China

基　　金：国家自然科学基金项目(61703224)。

摘　　要：变风量空调系统房间温度控制中,由于控制对象存在非线性、大滞后、模型参数不确定性等问题,导致温度调节困难。采用一种新型二阶离散最速控制函数设计自抗扰控制器,结合串级控制,以变风量空调末端装置风阀开度为中间被调量,将自抗扰引入到串级控制的温度环,设计了串级自抗扰控制器。建立了空调房间和末端装置的仿真模型,并进行仿真控制器和实验控制器的参数整定。仿真和实验结果表明,与经典串级PID温度控制器相比,该控制器响应快、超调小、控制精度高,能有效地克服房间对象中的不确定性和热扰动,保证室内的舒适性。Due to the existence of non-linear control of the object,large delay and uncertainty of the model parameters,it is difficult to adjust the temperature in the room of variable air volume air conditioning system.A new second-order discrete speed control function is used to design an active disturbance rejection controller.A cascade active disturbance rejection controller is designed by introducing the active disturbance rejection control into the cascade-controlled temperature loop with the air valve opening of variable air volume terminal device as the intermediate adjustable quantity.The simulation models of the air conditioning room and the terminal device are established,and the parameters of the simulation controller and the experiment controller are set.Simulation and experimental results show that compared with the classic cascade PID temperature controller,the controller has fast response,small overshoot,high control accuracy,and it can effectively overcome the uncertainty and thermal disturbance in the room objects to ensure indoor comfort.

关 键 词：变风量空调系统 自抗扰 串级控制 温度控制 变风量末端装置 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]