西安建筑科技大学学报(自然科学版)

本文结合工程实际,以变风量空调系统为研究对象,分析温湿度耦合因素,研究了夏季工况露点除湿和变风量末端控温联合作用下,基于绝对湿度控湿的变风量末端温湿度控制方法-联合串级双闭环控制.温度控制回路采用单神经元自适应PID,湿度控制回路采用单纯形寻优的增量式PID算法,仿真与实验研究结果表明本文提出的控制方案较传统方案能快速除湿,较好的满足人体舒适度要求,本文的研究具有一定的理论意义和工程应用价值.

Combined with practical system, and taking variable air volume(VAV)air-conditioning system as the object, the coupling factors of temperature and humidity are analysed. Under joint action of dehumidification through changing dew point and temperature control based on absolute humidity, the Joint Cascade Double Closed Loop Control method in VAV terminal temperature and humidity control is researched in this paper. Single neuron adaptive PID algorithm and incremental PID algorithm optimized by simplex optimization method is adopted in temperature and humidity control loop separately. Simulation and experimental results show that the proposed control scheme compared with traditional one can dehumidify faster and better satisfy human comfort requirements. The research has certain theoretical significance and engineering application value.

引言
1 室内温湿度控制原理
2 室内温湿度控制研究
3 结语

图1 变风量中央空调系统结构图<br/>Fig.1 The structure diagram of variable air volume air-conditioning system

图1 变风量中央空调系统结构图
Fig.1 The structure diagram of variable air volume air-conditioning system

图2 基于绝对湿度控湿的温湿度控制框图<br/>Fig.2 The control block diagram of temperature and humidity based on absolute humidity

图2 基于绝对湿度控湿的温湿度控制框图
Fig.2 The control block diagram of temperature and humidity based on absolute humidity

图3 单纯形法增量式PID控制框图<br/>Fig.3 Control block diagram of incremental PID controller with simplex method

图3 单纯形法增量式PID控制框图
Fig.3 Control block diagram of incremental PID controller with simplex method

图4 单神经元自适应PID控制框图<br/>Fig.4 Control block diagram of single neuron adaptive PID controller

图4 单神经元自适应PID控制框图
Fig.4 Control block diagram of single neuron adaptive PID controller

图5 房间温度仿真控制效果图<br/>Fig.5 Simulation control diagram of room temperature

图5 房间温度仿真控制效果图
Fig.5 Simulation control diagram of room temperature

图6 房间湿度仿真控制效果图<br/>Fig.6 Simulation control diagram of room humidity

图6 房间湿度仿真控制效果图
Fig.6 Simulation control diagram of room humidity

表1 房间温湿度控制性能指标<br/>Tab.1 The performance index of room temperature and humidity

表1 房间温湿度控制性能指标
Tab.1 The performance index of room temperature and humidity

图7 房间温湿度控制效果图<br/>Fig.7 Control effect diagram of room temperature and humidity

图7 房间温湿度控制效果图
Fig.7 Control effect diagram of room temperature and humidity

图8 加载修正系数后房间温湿度控制效果图<br/>Fig.8 Control effect diagram of room temperature and humidity with correction factor

图8 加载修正系数后房间温湿度控制效果图
Fig.8 Control effect diagram of room temperature and humidity with correction factor

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备注

引言

1 室内温湿度控制原理

2 室内温湿度控制研究

3 结语

期刊信息