基于模糊PID的变风量单体空调控制器研究
发布时间：2018-08-01 14:33
【摘要】：智能建筑在中国已成为建筑市场的大趋势,空调系统是楼宇自动化的一个重要部分。智能建筑的设计原则就是要以人为本,就是要为人们提供一个舒适的生活和工作环境,而这一功能主要是通过空调及其控制系统来实现的,空调系统也是整个建筑最主要的耗能系统。近年以来,变风量空调系统由于具有节能等优点得到了很大的发展。变风量系统运行工况是随时会发生变化的,它必须凭借自动控制才能保证整个空调系统最基本的要求,这其中包括：适宜的室内温度、足够量的新鲜空气、良好的气流组织、以及正常的室内压力。这其中机组的变风量控制中就包含了送风机的控制、回风机控制、以及新风量控制等诸多环节。由此可知,变风量空调系统以及控制系统是紧密结合、不可分割的。由于房间内温度、湿度、二氧化碳浓度之间存在着复杂的非线性关系,传统控制方法很难实现实时预测与控制,模糊PID则有着很大优势。本文基于工程实际,在研究变风量空调系统的基础上提出一种基于模糊PID的变风量单体空调控制器,使设备的实际输出及时地追踪负荷的变化,并应用智能控制方法对单个空调房间的变风量部分进行研究,从而使空调系统的运行取得节能、经济的效果。研究结果适用于既有项目的改扩建工程,或者总体面积不大的新建工程。
[Abstract]:Intelligent building in China has become a major trend in the construction market, air conditioning system is an important part of building automation. The design principle of intelligent building is to be people-oriented and to provide people with a comfortable living and working environment, and this function is mainly realized through air conditioning and its control system. Air conditioning system is also the main energy consumption system of the whole building. In recent years, VAV air conditioning system has been greatly developed because of its advantages of energy saving and so on. The operation condition of VAV system will change at any time. It must rely on automatic control to ensure the most basic requirements of the whole air conditioning system. These include: suitable indoor temperature, enough fresh air, good airflow organization, And normal indoor pressure. The variable air volume control of the unit includes the control of the fan, the control of the return fan and the control of the fresh air volume. Therefore, VAV air conditioning system and control system are closely integrated and indivisible. Because of the complex nonlinear relationship among the temperature, humidity and carbon dioxide concentration in the room, the traditional control method is difficult to realize real-time prediction and control, and fuzzy PID has a great advantage. Based on the engineering practice, this paper presents a variable air volume air conditioning controller based on fuzzy PID, which makes the actual output of the equipment track the change of load in time. The variable air volume of a single air conditioning room is studied by using intelligent control method, so that the operation of the air conditioning system can achieve energy saving and economic results. The results are applicable to existing projects or new projects with small total area.
【学位授予单位】：沈阳建筑大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU831
本文编号：2157888
[Abstract]:Intelligent building in China has become a major trend in the construction market, air conditioning system is an important part of building automation. The design principle of intelligent building is to be people-oriented and to provide people with a comfortable living and working environment, and this function is mainly realized through air conditioning and its control system. Air conditioning system is also the main energy consumption system of the whole building. In recent years, VAV air conditioning system has been greatly developed because of its advantages of energy saving and so on. The operation condition of VAV system will change at any time. It must rely on automatic control to ensure the most basic requirements of the whole air conditioning system. These include: suitable indoor temperature, enough fresh air, good airflow organization, And normal indoor pressure. The variable air volume control of the unit includes the control of the fan, the control of the return fan and the control of the fresh air volume. Therefore, VAV air conditioning system and control system are closely integrated and indivisible. Because of the complex nonlinear relationship among the temperature, humidity and carbon dioxide concentration in the room, the traditional control method is difficult to realize real-time prediction and control, and fuzzy PID has a great advantage. Based on the engineering practice, this paper presents a variable air volume air conditioning controller based on fuzzy PID, which makes the actual output of the equipment track the change of load in time. The variable air volume of a single air conditioning room is studied by using intelligent control method, so that the operation of the air conditioning system can achieve energy saving and economic results. The results are applicable to existing projects or new projects with small total area.
【学位授予单位】：沈阳建筑大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU831
【参考文献】
相关期刊论文 前9条
1 刘维福;叶安丽;;智能建筑中VAV空调系统新风控制方法研究[J];电气应用;2007年03期
2 闫俊海;范晓伟;何大四;李琦波;;变风量空调系统新风量的控制问题[J];建筑节能;2007年02期
3 邵南;BAS节能对策[J];智能建筑与城市信息;2005年05期
4 ;Filter-based iterative learning control for linear large-scale industrial processes[J];Journal of Control Theory and Applications;2004年02期
5 丁永生,任立红;一种新颖的模糊自调整免疫反馈控制系统[J];控制与决策;2000年04期
6 汪善国;;新风量、新风和新回风系统及控制[J];暖通空调;1997年01期
7 陈向阳;变风量空调系统的自动控制[J];暖通空调;1997年03期
8 戴斌文,狄洪发,江亿;变风量空调系统风机总风量控制方法[J];暖通空调;1999年03期
9 陈曦,张金红,付少波;变风量系统中央空调房间的建模及控制系统仿真[J];微计算机信息;2005年09期
，本文编号：2157888
本文链接：https://www.wllwen.com/kejilunwen/sgjslw/2157888.html
