基于MATLAB的空调房间温控系统的仿真研究  

Simulation of Air-conditioned Room Temperature Control System Based on MATLAB

作　　者：阚丹青[1] 唐良宝[1] 赵智林[1] 

机构地区：[1]桂林电子科技大学机电工程学院,桂林541004

出　　处：《世界科技研究与发展》2011年第1期110-113,共4页World Sci-Tech R&D

摘　　要：针对空调房间温度的非线性变化纯滞后惯性大等突出问题,建立了一个空调室温控制模型。根据这一模型提出了一种模糊Smith-PID最优控制策略,使用MATLAB对空调房间温度的模型失配时鲁棒特性、抗干扰特性、动态特性等进行仿真研究。结果表明:模糊Smith-PID控制效果均优于常规PID和传统Smith-PID控制,响应快、抗干扰性强、鲁棒性好,并能使房间温度控制在给定温度±0.1℃附近,超调几乎为零,是一种实用而简便的控制方法。In order to deal with some serious problems of air-conditioned room temperature such as a great non-linear variation and a high Time Delay Inertial system, an air-conditioned room temperature control model is built. Based on the model, a fuzzy Smith-PID optimal control policy is put forward. MATLAB is used to simulate the robust characteristics when the air-conditioned room temperature model is in mismatch ,anti-interference ability and dynamic characteristics. The results indicate that fuzzy Smith-PID has better controlling effect than conventional PID and traditional Smith - PID in faster dynamic response, stronger anti-interference ability and better robust characteristics. It also controls the room temperature on the verge of a given temperature ±0. 1℃. The overshoot is almost zero. This control Method turns out to be very practical and convenient.

关 键 词：变风量(VAV)空调 房间温度 模糊Smith—PID控制 MATLAB 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]